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2013–14 South-West Indian Ocean cyclone season

November 03, 2023

The 2013–14 South-West Indian Ocean cyclone season was an above-average event in tropical cyclone formation. The season officially began on July 1, 2013,[1] though the first tropical system designated by Météo-France was a short-lived tropical disturbance that developed on July 8. However, the first named storm was Cyclone Amara in December. Bruce was the first very intense tropical cyclone since Edzani in 2010, which originated from the Australian region. The strongest system of the cyclone season was Hellen, also one of the most intense tropical cyclones over the Mozambique Channel. The season officially ended on June 30, 2014

2013–14 South-West Indian Ocean cyclone season
Season summary map
Seasonal boundaries
First system formedOctober 23, 2013
Last system dissipatedApril 6, 2014
Strongest storm
NameHellen
 • Maximum winds230 km/h (145 mph)
(10-minute sustained)
 • Lowest pressure915 hPa (mbar)
Seasonal statistics
Total disturbances15
Total depressions13
Total storms11
Tropical cyclones5
Intense tropical cyclones5
Very intense tropical cyclones2 (record high, tied with 2014–15 and 2022–23)
Total fatalities11 total
Total damageAt least $89.2 million (2014 USD)
Related articles
South-West Indian Ocean tropical cyclone seasons
2011–12, 2012–13, 2013–14, 2014–15, 2015–16

Within this basin, tropical and subtropical disturbances are officially monitored by the Regional Specialised Meteorological Centre on Réunion island, while the Mauritius and Madagascar weather services assign names to significant tropical and subtropical disturbances.[1]

Seasonal summary edit

Cyclone HellenCyclone BejisaCyclone AmaraTropical cyclone scales#Comparisons across basins

Systems edit

Moderate Tropical Storm 01 edit

Moderate tropical storm (MFR)
Tropical storm (SSHWS)
   
DurationOctober 23 – October 27
Peak intensity65 km/h (40 mph) (10-min);
997 hPa (mbar)

The predecessor to the season's first designated tropical depression began as an area of persistent convection well removed from any landmasses. The JTWC began issuing products on the storm complex on October 21, noting recent consolidation patterns and its association with an ill-defined low-level circulation centre.[2] Over subsequent hours, the system developed a central region of convection with incipient rainbands.[3] Despite these signs of potential tropical cyclogenesis in the very near future, the storm remained unclassified for several days as it tracked generally towards the west. At 1200 UTC on October 25, however, Météo-France classified the system as a tropical disturbance.[4] Though upper-level atmospheric conditions were rather conducive for continued strengthening, factors including decreasing convergence and marginally sustainable sea surface temperatures were expected to inhibit tropical development, and as such initial forecasts only anticipated minimal and gradual strengthening.[5]

At 0600 UTC on October 26, Météo-France upgraded the system to tropical depression status.[6] Forecasts upon the system's upgrade to tropical depression intensity expected more significant intensification, with the depression expected to peak as a moderate tropical storm.[6] However, the depression peaked in strength later that day with winds of 55 km/h (35 mph) and a minimum pressure of 1000 mbar (hPa; 29.53 inHg).[7] This intensity was sustained for several hours before the storm began to slowly weaken early on October 27.[8] During its weakening phase, the depression became elongated and its circulation center became exposed from the rest of the convection,[9] and at 1200 UTC that day Météo-France reclassified the storm as a tropical disturbance.[10] In an area no longer sufficient to support strengthening, the disturbance gradually diffused,[11] and six hours later, Météo-France issued their last advisory on the system.[12] The tropical depression was upgraded to Moderate Tropical Storm 01 during post-analysis of the season.

Intense Tropical Cyclone Amara edit

Intense tropical cyclone (MFR)
Category 4 tropical cyclone (SSHWS)
   
DurationDecember 14 – December 27
Peak intensity205 km/h (125 mph) (10-min);
935 hPa (mbar)
Main article: Cyclone Amara

Amara developed from a disturbance within the monsoon trough on December 14.[13][14] The following day, the system attained tropical depression status.[15] Despite its ill-defined organization,[16] the depression was able to continue strengthening, reaching moderate tropical storm status on December 16 as it tracked southwest.[17] Situated in a favorable atmospheric environment, a period of rapid intensification ensued after Amara reached tropical cyclone status on December 18.[18][19] After fluctuating in strength,[20][21] the cyclone peaked with maximum sustained winds of 205 km/h (125 mph) and a minimum barometric pressure of 933 mbar (hPa; 27.55 inHg) on December 21, making it an intense tropical cyclone based on the intensity scale utilized by Météo-France.[22] Shortly after, wind shear strengthened as Amara tracked southeast, resulting in a weakening phase.[23] The shearing effects caused the cyclone to rapidly decay,[24] and by December 23, Amara was determined to have degenerated into a remnant low.[25]

Amara was initially expected to track directly over the island of Rodrigues, prompting widespread precautionary measures and resulting in the issuance of a Class 4 warning – denoting a warning of highest urgency – by the Mauritius Meteorological Services.[26][27] Though the tropical cyclone eventually passed to the east of the island, Amara was close enough to Rodrigues to severely affect the island.[28] Strong winds, peaking at a measured 152 km/h (94 mph) in Pointe Canon,[27] resulted in widespread infrastructural damage, including the tearing of metal sheeting and uprooting of trees.[28][29] Widespread power outage cut power to 12,000 homes and shut off communications to and from the island.[29][30] Heavy rains produced by Amara also triggered flooding in some locations and caused soil erosion.[31][32]

Very Intense Tropical Cyclone Bruce edit

Very intense tropical cyclone (MFR)
Category 5 tropical cyclone (SSHWS)
   
DurationDecember 20 (Entered basin) – December 23
Peak intensity220 km/h (140 mph) (10-min);
920 hPa (mbar)

On December 16, a complex of disturbed weather near Indonesia was designated as a tropical low by the Australian Bureau of Meteorology.[33] In an area of only moderate inhibiting atmospheric conditions, the low was able to steadily intensify, reaching tropical cyclone status on December 18 as it tracked southwestward.[34] At 2100 UTC on December 19, Bruce moved into the area of responsibility of Météo-France after crossing 90°E with maximum sustained winds of 155 km/h (95 mph).[35] Upon passage into the southwest Indian Ocean Bruce already had a well-defined eye and further strengthening was anticipated.[35][36] Six hours later the storm was upgraded to intense tropical cyclone status.[37] At 1800 UTC that day, Météo-France upgraded the system to very intense tropical cyclone status, the highest rating possible on their tropical cyclone intensity scale.[38] Over the next day, Bruce transiently weakened to intense tropical cyclone status,[39] but later regained the maximum classification at 0000 UTC on December 22. Consequently, Bruce reached its peak intensity with winds of 220 km/h (135 mph) and a minimum pressure of 920 mbar (hPa; 27.17 inHg).[40]

Following peak intensity, Bruce began to steadily weaken as the storm's deep region of convection began to diminish.[41] At 1200 UTC on December 22, the storm was downgraded back to intense tropical cyclone status for a final time as it was becoming increasingly asymmetric.[42][43] During the same timeframe Bruce began to curve around the western periphery of a nearby subtropical ridge, redirecting the cyclone's path towards the south.[43] On December 23, the cyclone's eye finally succumbed to cooling sea surface temperatures and Bruce was downgraded to a low-end tropical cyclone by Météo-France.[44][45] By the end of the day, Bruce was downgraded further to severe tropical storm intensity as the bulk of convection began to shear away from the low-level circulation center.[46][47] Accelerating southeastwards, Bruce transitioned into an extratropical cyclone on December 24, ceasing Météo-France's monitoring operations.[48] Its remnants exited the basin and re-entered the Australian region basin on December 25.[citation needed]

Intense Tropical Cyclone Bejisa edit

Main article: Cyclone Bejisa
Intense tropical cyclone (MFR)
Category 4 tropical cyclone (SSHWS)
   
DurationDecember 27 – January 4
Peak intensity175 km/h (110 mph) (10-min);
950 hPa (mbar)

In late December 2013, computer forecast models began to predict the development and cyclogenesis of a disturbance within the monsoon trough north of Madagascar.[49] At 1800 UTC on December 27, the Joint Typhoon Warning Center (JTWC) noted a discrete area of disturbed weather approximately 1,350 km (840 mi) north-northwest of Réunion that corresponded with model forecasts and had the potential to develop.[50] Accompanied by a low-level circulation center, the monitored storm complex developed rainbands about its southern periphery the following day.[51] At 1200 UTC on December 28, Météo-France deemed the system sufficiently organized to be considered a tropical disturbance, the fourth system to be given such a classification by the agency that season.[52] Upon its designation, the disturbance was analyzed to have an unusually high barometric pressure, based on nearby weather station observations.[53] Météo-France projected for the system to peak as a tropical cyclone before slightly weakening before impacting the Mascarene Islands.[54]

Tracking southward, the disturbance steadily organized following December 28. As a result of wind shear, the system's low-level circulation centre remained partially exposed, though the shearing conditions were expected to lessen [55] At 0000 UTC on December 29, the disturbance was upgraded to a tropical depression.[56] At 1800 UTC that day, the depression intensified to moderate tropical storm intensity, thus receiving the name Bejisa by the Mauritius Meteorological Services.[57][58] This coincided with the improving satellite appearance of the storm's central dense overcast.[58] Intensification subsequently quickened, and at 0600 UTC the next day Bejisa was considered to be a severe tropical storm.[59] Concurrently a strengthening ridge in the mid-levels of the troposphere began to steer the storm towards the south-southeast.[60] Following the development of a small pinhole eye, Bejisa was upgraded to tropical cyclone status at 1200 UTC on December 30,[61] followed by intense tropical cyclone status six hours thereafter.[62] This intensification phase was short-lived, as an eyewall replacement cycle resulted in a slight deterioration and fluctuation of the storm's organization and structure.[63]

Tropical Depression 05 edit

Tropical depression (MFR)
   
DurationJanuary 7 – January 10
Peak intensity55 km/h (35 mph) (10-min);
997 hPa (mbar)

The initial development of the season's fifth tropical depression was quickly paced. The JTWC first began monitoring the system in its advisories at 1800 UTC on January 7, while the area of disturbed weather was within the Mozambique Channel. By that time, a well-defined low-level circulation center had already developed, and computer models indicated that tropical cyclogenesis was a likely probability due to the storm's expected track within a favorable atmospheric environment.[64] At 1200 UTC on January 8, Météo-France classified the system as a zone of disturbed weather,[65] though at the time the storm's convective activity was intermittent.[66] Shortly after designation the system developed, albeit shallow, convective banding.[64] At 0600 UTC the following day, the zone of disturbed weather was upgraded to tropical depression status while just off the west coast of Madagascar.[67]

Forecasts early in the depression's history indicated that heavy rainfall was likely in areas of southwestern Madagascar,[68] though these rains would come during an extended period of abnormally dry weather.[69] As a result, the Madagascar National Bureau for Risk and Disaster Management issued a red alert, signifying imminent heavy rain, for five Malagasy districts and a yellow alert, signifying a threat of heavy rain, in seven districts. In Morondava, 205 people were evacuated to safe havens where authorities provided food.[68]

Intense Tropical Cyclone Colin edit

Intense tropical cyclone (MFR)
Category 4 tropical cyclone (SSHWS)
   
DurationJanuary 9 (Entered basin) – January 14
Peak intensity205 km/h (125 mph) (10-min);
915 hPa (mbar)

A tropical low in the Australian region basin formed on January 6, which was about 450 km (280 mi) east-northeast of Christmas Island.[70] Over the next days the system moved rapidly westwards and entered the Southwest Indian Ocean during the morning of January 9.[71] Despite being under significant wind shear, the system managed to organize a low level eye which was detectable in microwave imagery.[72] As a result, the storm was upgraded to moderate tropical storm strength and named Colin the next day.[73] On January 11 shear let up, allowing Colin favourable conditions for strengthening. Tracking southwest, Colin rapidly intensified much faster than initial predictions expected into an intense tropical cyclone during the succeeding 24 hours. Six hours later on January 12, Colin had reached its peak intensity of 185 km/h (115 mph).[74] Just like cyclones Amara and Bruce, Colin had undergone rapid deepening. But by January 13, Colin's eyewall had become severely eroded and the system was downgraded to a severe tropical storm. As it tracked further into cooler waters, the storm weakened to tropical storm strength early on January 14 and made a turn to the southeast. Environmental conditions continued to become unfavourable and the storm transitioned into an extratropical cyclone on January 15.[75]

Moderate Tropical Storm Deliwe edit

Moderate tropical storm (MFR)
Tropical storm (SSHWS)
   
DurationJanuary 14 – January 22
Peak intensity85 km/h (50 mph) (10-min);
990 hPa (mbar)

An area of convection accompanied by a broad circulation was first noted within a region of moderate wind shear by the Joint Typhoon Warning Center early on January 15. It was located for the most part over land, and it drifted out into the Mozambique Channel during the same day. On January 16, the small system tracked south-southwest and was designated by MFR as Tropical Disturbance 7. Shortly thereafter, JTWC declared it as Tropical Cyclone 09S.[citation needed] At 1800z, Météo-France noted that the system was maintaining a tight curved band pattern and the Madagascar Meteorological Service named the storm Deliwe.[76] Throughout the next 24 hours, Deliwe managed to persist as a moderate tropical storm while it moved away from the Madagascar coast, but increasing shear associated with an upper-level trough weakened the storm back to a tropical depression.[citation needed] Deliwe turned west and convection sheared away to the south, exposing the low-level circulation center, but the storm maintained a small region of gale-force winds for a brief period after Réunion issued their last advisory on the system.[77] The remnants of Deliwe turned back to the north, dissipating as they approached Mozambique.

Deliwe produced heavy rains in the Melaky region of Madagascar and caused significant flooding, resulting in at least two fatalities. Additionally, one person went missing after being swept away by the swollen Mahajamba River in Mitsinjo. In Mahajanga, rising waters left 463 people homeless. Strong wind gusts caused some damage, most notably the roof of a school in Soalala, Boeny, was blown off.[78]

Zone of Disturbed Weather 08 edit

Zone of disturbed weather (MFR)
   
DurationJanuary 16 – January 20
Peak intensity35 km/h (25 mph) (10-min);
1004 hPa (mbar)

A broad of low-pressure formed east-northeast of Madagascar late on January 16. Due to warm waters, it intensified into Zone of Disturbed Weather 08 early on January 18. The system degenerated to a remnant low about 12 hours later, due to cool waters and vertical windshear. Early on January 21, the remnants of the system fully dissipated, after making landfall on Madagascar.[citation needed]

Tropical Disturbance 09 edit

Tropical disturbance (MFR)
   
DurationJanuary 24 – January 31
Peak intensity45 km/h (30 mph) (10-min);
1002 hPa (mbar)

Severe Tropical Storm Edilson edit

Severe tropical storm (MFR)
Tropical storm (SSHWS)
   
DurationFebruary 3 – February 7
Peak intensity105 km/h (65 mph) (10-min);
978 hPa (mbar)

Less than one week since the last disturbance dissipated, another disturbance formed on February 3. Late on February 4, the MFR and JTWC upgraded it to Moderate Tropical Storm Edilson. The next day, the storm affected the Mauritius Islands with very heavy rainfall.[79]

Severe Tropical Storm Fobane edit

Severe tropical storm (MFR)
Tropical storm (SSHWS)
   
DurationFebruary 5 – February 16
Peak intensity110 km/h (70 mph) (10-min);
975 hPa (mbar)

As Severe Tropical Storm Edilson reached peak intensity, a tropical depression formed to its northeast. It was upgraded into Tropical Depression 11 by Météo-France, and it rapidly intensified into Severe Tropical Storm Fobane by February 8. Throughout February 9, Fobane rapidly accelerated to the south and curved to the east. The storm interacted with an upper-level trough and low oceanic heat content, altering its structure. At noon on February 10, Météo-France declared that Fobane had transitioned into a hybrid but warm-core cyclone, meriting the classification of subtropical depression.[citation needed] Convection rapidly formed coinciding with a 10 millibar drop on February 11[80] and Fobane reached peak intensity during the next day while subtropical. In the following days, Fobane turned south and then west, slowing down as a new ridge of high pressure built up to its west. The storm continued into cooler waters and became extratropical on February 14.[citation needed]

Severe Tropical Storm Guito edit

Severe tropical storm (MFR)
Category 1 tropical cyclone (SSHWS)
   
DurationFebruary 17 – February 21
Peak intensity110 km/h (70 mph) (10-min);
980 hPa (mbar)

An area of convection over eastern Mozambique moved into the Mozambique Channel and was designated a Tropical Disturbance on February 18.[81] Later that day, the JTWC gave the designation of 15S. It steadily intensified into Severe Tropical Storm Guito on February 18. The next day, Guito intensified into a Category 1 tropical cyclone and a ragged eye formed.[82]

Subtropical Depression 13 edit

Subtropical depression (MFR)
   
DurationFebruary 25 – March 1
Peak intensity75 km/h (45 mph) (10-min);
993 hPa (mbar)

On February 27, RSMC La Réunion reported that a subtropical depression had formed 725 km (450 mi) southeast of Durban, South Africa.[83]

Very Intense Tropical Cyclone Hellen edit

Very intense tropical cyclone (MFR)
Category 4 tropical cyclone (SSHWS)
   
DurationMarch 27 – April 2
Peak intensity230 km/h (145 mph) (10-min);
915 hPa (mbar)
Main article: Cyclone Hellen

One month after Subtropical Depression 13 had formed, a zone of disturbed weather rapidly intensified into Tropical Disturbance 14, late on March 27. Due to favorable conditions and entering warm waters, it rapidly became Severe Tropical Storm Hellen early on March 30. Explosive intensification occurred, making Hellen an intense tropical cyclone the same day. As Hellen reached its peak intensity, it then rapidly weakened to a tropical disturbance due to land interaction with Madagascar. During the next several days, Hellen's remnants moved southwestward, while continuing to weaken. On April 5, Hellen's remnants made landfall on Mozambique and dissipated shortly afterwards.

Moderate Tropical Storm Ivanoe edit

Moderate tropical storm (MFR)
Tropical storm (SSHWS)
   
DurationApril 3 – April 6
Peak intensity85 km/h (50 mph) (10-min);
987 hPa (mbar)

Tropical Disturbance 15 formed on April 4, about 1,155 km (718 mi) south-east of Diego Garcia. On April 5, the system intensified into Moderate Tropical Storm Ivanoe. During the same day, Ivanoe strengthened to a Severe Tropical Storm and weakened back to a Moderate Tropical Storm. Moderate Tropical Storm Ivanoe weakened further as it entered cool waters. On April 6, the MFR made its final advisories on Ivanoe as the system transitioned into an extratropical cyclone.

Ivanoe's extratropical remnants continued to move in a southeastward direction as it affected the eastern part of Australia. During the morning of April 9, the remnants of Ivanoe fully dissipated.

Storm names edit

Within the South-west Indian Ocean Tropical Depressions and Subtropical Depressions that are judged to have 10-minute sustained windspeeds of 65 km/h, (40 mph) by the Regional Specialized Meteorological Center on La Réunion Island, France (RSMC La Réunion) are usually assigned a name. However, it is the Sub-Regional Tropical Cyclone Advisory Centers in Mauritius and Madagascar who name the systems. The Sub-Regional Tropical Cyclone Advisory Center in Mauritius names the storm should it intensify into a moderate tropical storm between 55°E and 90°E, if the storm should intensify into a moderate tropical storm between 30°E and 55°E then the Sub-Regional Tropical Cyclone Advisory Center in Madagascar assigns the appropriate name to the storm. Tropical cyclones that move into this region from the Australian Region will not receive a new name. New name lists are used every year, whilst a name is normally only used once so thus no names are retired.[84]

  • Jirani (unused)
  • Katundu (unused)
  • Letso (unused)
  • Mirana (unused)
  • Naserian (unused)
  • Opang (unused)
  • Paya (unused)
  • Querida (unused)
  • Romane (unused)
  • Singano (unused)
  • Tarus (unused)
  • Unami (unused)
  • Vuma (unused)
  • Wamil (unused)
  • Xolile (unused)
  • Yasmine (unused)
  • Zamile (unused)

During December, Severe Tropical Cyclone Bruce entered the Southwestern Indian Ocean basin from the Australian area of responsibility.

Seasonal effects edit

This table lists all of the tropical cyclones and subtropical cyclones that were monitored during the 2013–2014 South-West Indian Ocean cyclone season. Information on their intensity, duration, name, areas affected, primarily comes from RSMC La Réunion. Death and damage reports come from either press reports or the relevant national disaster management agency while the damage totals are given in 2013 USD.

Name Dates Peak intensity Areas affected Damage
(USD) 		Deaths Refs
Category Wind speed Pressure
01 October 23–27 Moderate Tropical Storm 65 km/h (40 mph) 997 hPa (29.44 inHg) Chagos Archipelago None None
Amara December 14–27 Intense Tropical Cyclone 205 km/h (125 mph) 935 hPa (27.61 inHg) Rodrigues None None
Bruce December 20–23[nb 1] Very Intense Tropical Cyclone 225 km/h (140 mph) 920 hPa (27.17 inHg) None None None
Bejisa December 27 – January 4 Intense Tropical Cyclone 175 km/h (110 mph) 950 hPa (28.05 inHg) Seychelles, Réunion, Mauritius >$89.2 million 1
05 January 7–10 Tropical Depression 55 km/h (35 mph) 997 hPa (29.44 inHg) Mozambique, Madagascar None None
Colin January 9–14 Intense Tropical Cyclone 205 km/h (125 mph) 915 hPa (27.02 inHg) None None None
Deliwe January 14–22 Moderate Tropical Storm 85 km/h (55 mph) 990 hPa (29.23 inHg) Madagascar, Mozambique Unknown 2
08 January 16–20 Zone of Disturbed Weather 35 km/h (20 mph) 1,004 hPa (29.65 inHg) Madagascar None None
09 January 24–31 Tropical Disturbance 45 km/h (30 mph) 1,002 hPa (29.59 inHg) Mozambique None None
Edilson February 3–7 Severe Tropical Storm 105 km/h (65 mph) 978 hPa (28.88 inHg) Mauritius, Réunion None None
Fobane February 5–16 Severe Tropical Storm 110 km/h (70 mph) 975 hPa (28.79 inHg) None None None
Guito February 17–21 Severe Tropical Storm 110 km/h (70 mph) 980 hPa (28.94 inHg) Mozambique, Madagascar None None
13 February 25 – March 1 Subtropical Depression 80 km/h (50 mph) 993 hPa (29.32 inHg) None None None
Hellen March 26 – April 5 Very Intense Tropical Cyclone 230 km/h (145 mph) 915 hPa (27.02 inHg) Mozambique, Comoro Islands, Madagascar Unknown 8
Ivanoe April 3–6 Moderate Tropical Storm 85 km/h (55 mph) 987 hPa (29.15 inHg) None None None
Season aggregates
15 systems October 21 – April 6 230 km/h (145 mph) 915 hPa (27.02 inHg) >$89.2 million 11

See also edit

 
Wikimedia Commons has media related to 2013-14 South-West Indian Ocean cyclone season.

Notes edit

  1. ^ Bruce formed in the Australian cyclone region on December 16, but entered the South-West Indian Ocean on December 19. It re-entered the Australian region on December 25, as a post-tropical low.

References edit

  1. ^ a b The RA I Tropical Cyclone Committee (2012). "Tropical Cyclone Operational Plan: 2012" (PDF). World Meteorological Organisation. p. 11. (PDF) from the original on May 12, 2013. Retrieved December 5, 2012.
  2. ^ Joint Typhoon Warning Center (October 21, 2013). "Significant Tropical Weather Advisory For The Indian Ocean – October 21, 1130 UTC" (TXT). Pearl Harbor, Hawaii: United States National Oceanic and Atmospheric Administration. Archived from the original on 23 October 2013. Retrieved 26 December 2013.
  3. ^ Joint Typhoon Warning Center (October 21, 2013). "Significant Tropical Weather Advisory For The Indian Ocean – October 21, 1800 UTC" (TXT). Pearl Harbor, Hawaii: United States National Oceanic and Atmospheric Administration. Archived from the original on 23 October 2013. Retrieved 26 December 2013.
  4. ^ Météo-France (October 25, 2013). "Tropical Disturbance 1 Warning Number 001/1" (TXT). United States National Oceanic and Atmospheric Administration. Archived from the original on 27 October 2013. Retrieved 21 December 2013.
  5. ^ Météo-France (October 25, 2013). "Tropical Disturbance 1 Forecast Warning Number 001/1" (TXT). United States National Oceanic and Atmospheric Administration. Archived from the original on 27 October 2013. Retrieved 21 December 2013.
  6. ^ a b Météo-France (October 26, 2013). "Tropical Depression 1 Warning Number 003/1" (TXT). United States National Oceanic and Atmospheric Administration. Archived from the original on 27 October 2013. Retrieved 21 December 2013.
  7. ^ Météo-France (October 26, 2013). "Tropical Depression 1 Warning Number 005/1" (TXT). United States National Oceanic and Atmospheric Administration. Archived from the original on 27 October 2013. Retrieved 21 December 2013.
  8. ^ Météo-France (October 27, 2013). "Tropical Depression 1 Warning Number 007/1" (TXT). United States National Oceanic and Atmospheric Administration. Archived from the original on 27 October 2013. Retrieved 21 December 2013.
  9. ^ Joint Typhoon Warning Center (October 27, 2013). "Tropical Cyclone 01S (One) Warning NR 002" (TXT). Pearl Harbor, Hawaii: United States National Oceanic and Atmospheric Administration. Archived from the original on 28 October 2013. Retrieved 26 December 2013.
  10. ^ Météo-France (October 27, 2013). "Tropical Disturbance 1 Warning Number 008/1" (TXT). United States National Oceanic and Atmospheric Administration. Archived from the original on 28 October 2013. Retrieved 21 December 2013.
  11. ^ Joint Typhoon Warning Center (October 28, 2013). "Tropical Cyclone 01S (One) Warning NR 003" (TXT). Pearl Harbor, Hawaii: United States National Oceanic and Atmospheric Administration. Archived from the original on 28 October 2013. Retrieved 26 December 2013.
  12. ^ Météo-France (October 27, 2013). "Tropical Disturbance 1 Warning Number 009/1" (TXT). United States National Oceanic and Atmospheric Administration. Archived from the original on 28 October 2013. Retrieved 21 December 2013.
  13. ^ (PDF). Météo-France. December 13, 2013. Archived from the original (PDF) on 24 December 2013. Retrieved 21 December 2013.
  14. ^ Météo-France (December 14, 2013). "Tropical Disturbance 2 Warning Number 001/2" (TXT). United States National Oceanic and Atmospheric Administration. Archived from the original on 15 December 2013. Retrieved 21 December 2013.
  15. ^ Météo-France (December 15, 2013). "Tropical Depression 2 Warning Number 003/2" (TXT). United States National Oceanic and Atmospheric Administration. Archived from the original on 15 December 2013. Retrieved 21 December 2013.
  16. ^ Joint Typhoon Warning Center (December 15, 2013). "Tropical Cyclone Formation Alert – December 15, 1500 UTC" (TXT). Honolulu, Hawaii: United States National Oceanic and Atmospheric Administration. Archived from the original on 17 December 2013. Retrieved 21 December 2013.
  17. ^ Météo-France (December 16, 2013). "Moderate Tropical Storm 2 (Amara) Warning Number 009/2" (TXT). United States National Oceanic and Atmospheric Administration. Archived from the original on 17 December 2013. Retrieved 21 December 2013.
  18. ^ Joint Typhoon Warning Center (December 18, 2013). "Tropical Cyclone 03S (Amara) Warning NR 004" (TXT). Honolulu, Hawaii: United States National Oceanic and Atmospheric Administration. Archived from the original on 19 December 2013. Retrieved 23 December 2013.
  19. ^ Météo-France (December 18, 2013). "Tropical Cyclone 2 (Amara) Warning Number 016/2" (TXT). United States National Oceanic and Atmospheric Administration. Archived from the original on 19 December 2013. Retrieved 23 December 2013.
  20. ^ Joint Typhoon Warning Center (December 18, 2013). "Tropical Cyclone 03S (Amara) Warning NR 006" (TXT). Honolulu, Hawaii: United States National Oceanic and Atmospheric Administration. Archived from the original on 20 December 2013. Retrieved 23 December 2013.
  21. ^ Météo-France (December 19, 2013). "Tropical Cyclone 2 (Amara) Warning Number 019/2" (TXT). United States National Oceanic and Atmospheric Administration. Archived from the original on 20 December 2013. Retrieved 23 December 2013.
  22. ^ Météo-France (December 21, 2013). "Intense Tropical Cyclone 2 (Amara) Warning Number 027/2" (TXT). United States National Oceanic and Atmospheric Administration. Archived from the original on 21 December 2013. Retrieved 23 December 2013.
  23. ^ Joint Typhoon Warning Center (December 21, 2013). "Tropical Cyclone 03S (Amara) Warning NR 011" (TXT). Honolulu, Hawaii: United States National Oceanic and Atmospheric Administration. Archived from the original on 22 December 2013. Retrieved 23 December 2013.
  24. ^ Joint Typhoon Warning Center (December 22, 2013). "Tropical Cyclone 03S (Amara) Warning NR 012" (TXT). Honolulu, Hawaii: United States National Oceanic and Atmospheric Administration. Archived from the original on 23 December 2013. Retrieved 23 December 2013.
  25. ^ Météo-France (December 22, 2013). "Tropical Depression 2 (Ex-Amara) Warning Number 036/2" (TXT). United States National Oceanic and Atmospheric Administration. Archived from the original on 24 December 2013. Retrieved 24 December 2013.
  26. ^ "Amara continue de se rapprocher de Rodrigues" [Amara continues to approach Rodrigues] (in French). Imaz Press Réunion. December 20, 2013. Retrieved 23 December 2013.
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External links edit

  • Joint Typhoon Warning Center (JTWC) 2015-08-09 at the Wayback Machine
  • Cyclones Indian Ocean

November 03, 2023
2013, south, west, indian, ocean, cyclone, season, above, average, event, tropical, cyclone, formation, season, officially, began, july, 2013, though, first, tropical, system, designated, météo, france, short, lived, tropical, disturbance, that, developed, jul. The 2013 14 South West Indian Ocean cyclone season was an above average event in tropical cyclone formation The season officially began on July 1 2013 1 though the first tropical system designated by Meteo France was a short lived tropical disturbance that developed on July 8 However the first named storm was Cyclone Amara in December Bruce was the first very intense tropical cyclone since Edzani in 2010 which originated from the Australian region The strongest system of the cyclone season was Hellen also one of the most intense tropical cyclones over the Mozambique Channel The season officially ended on June 30 20142013 14 South West Indian Ocean cyclone seasonSeason summary mapSeasonal boundariesFirst system formedOctober 23 2013Last system dissipatedApril 6 2014Strongest stormNameHellen Maximum winds230 km h 145 mph 10 minute sustained Lowest pressure915 hPa mbar Seasonal statisticsTotal disturbances15Total depressions13Total storms11Tropical cyclones5Intense tropical cyclones5Very intense tropical cyclones2 record high tied with 2014 15 and 2022 23 Total fatalities11 totalTotal damageAt least 89 2 million 2014 USD Related articles2013 14 Australian region cyclone season 2013 14 South Pacific cyclone seasonSouth West Indian Ocean tropical cyclone seasons2011 12 2012 13 2013 14 2014 15 2015 16Within this basin tropical and subtropical disturbances are officially monitored by the Regional Specialised Meteorological Centre on Reunion island while the Mauritius and Madagascar weather services assign names to significant tropical and subtropical disturbances 1 Contents 1 Seasonal summary 2 Systems 2 1 Moderate Tropical Storm 01 2 2 Intense Tropical Cyclone Amara 2 3 Very Intense Tropical Cyclone Bruce 2 4 Intense Tropical Cyclone Bejisa 2 5 Tropical Depression 05 2 6 Intense Tropical Cyclone Colin 2 7 Moderate Tropical Storm Deliwe 2 8 Zone of Disturbed Weather 08 2 9 Tropical Disturbance 09 2 10 Severe Tropical Storm Edilson 2 11 Severe Tropical Storm Fobane 2 12 Severe Tropical Storm Guito 2 13 Subtropical Depression 13 2 14 Very Intense Tropical Cyclone Hellen 2 15 Moderate Tropical Storm Ivanoe 3 Storm names 4 Seasonal effects 5 See also 6 Notes 7 References 8 External linksSeasonal summary editSystems editModerate Tropical Storm 01 edit Moderate tropical storm MFR Tropical storm SSHWS nbsp nbsp DurationOctober 23 October 27Peak intensity65 km h 40 mph 10 min 997 hPa mbar The predecessor to the season s first designated tropical depression began as an area of persistent convection well removed from any landmasses The JTWC began issuing products on the storm complex on October 21 noting recent consolidation patterns and its association with an ill defined low level circulation centre 2 Over subsequent hours the system developed a central region of convection with incipient rainbands 3 Despite these signs of potential tropical cyclogenesis in the very near future the storm remained unclassified for several days as it tracked generally towards the west At 1200 UTC on October 25 however Meteo France classified the system as a tropical disturbance 4 Though upper level atmospheric conditions were rather conducive for continued strengthening factors including decreasing convergence and marginally sustainable sea surface temperatures were expected to inhibit tropical development and as such initial forecasts only anticipated minimal and gradual strengthening 5 At 0600 UTC on October 26 Meteo France upgraded the system to tropical depression status 6 Forecasts upon the system s upgrade to tropical depression intensity expected more significant intensification with the depression expected to peak as a moderate tropical storm 6 However the depression peaked in strength later that day with winds of 55 km h 35 mph and a minimum pressure of 1000 mbar hPa 29 53 inHg 7 This intensity was sustained for several hours before the storm began to slowly weaken early on October 27 8 During its weakening phase the depression became elongated and its circulation center became exposed from the rest of the convection 9 and at 1200 UTC that day Meteo France reclassified the storm as a tropical disturbance 10 In an area no longer sufficient to support strengthening the disturbance gradually diffused 11 and six hours later Meteo France issued their last advisory on the system 12 The tropical depression was upgraded to Moderate Tropical Storm 01 during post analysis of the season Intense Tropical Cyclone Amara edit Intense tropical cyclone MFR Category 4 tropical cyclone SSHWS nbsp nbsp DurationDecember 14 December 27Peak intensity205 km h 125 mph 10 min 935 hPa mbar Main article Cyclone Amara Amara developed from a disturbance within the monsoon trough on December 14 13 14 The following day the system attained tropical depression status 15 Despite its ill defined organization 16 the depression was able to continue strengthening reaching moderate tropical storm status on December 16 as it tracked southwest 17 Situated in a favorable atmospheric environment a period of rapid intensification ensued after Amara reached tropical cyclone status on December 18 18 19 After fluctuating in strength 20 21 the cyclone peaked with maximum sustained winds of 205 km h 125 mph and a minimum barometric pressure of 933 mbar hPa 27 55 inHg on December 21 making it an intense tropical cyclone based on the intensity scale utilized by Meteo France 22 Shortly after wind shear strengthened as Amara tracked southeast resulting in a weakening phase 23 The shearing effects caused the cyclone to rapidly decay 24 and by December 23 Amara was determined to have degenerated into a remnant low 25 Amara was initially expected to track directly over the island of Rodrigues prompting widespread precautionary measures and resulting in the issuance of a Class 4 warning denoting a warning of highest urgency by the Mauritius Meteorological Services 26 27 Though the tropical cyclone eventually passed to the east of the island Amara was close enough to Rodrigues to severely affect the island 28 Strong winds peaking at a measured 152 km h 94 mph in Pointe Canon 27 resulted in widespread infrastructural damage including the tearing of metal sheeting and uprooting of trees 28 29 Widespread power outage cut power to 12 000 homes and shut off communications to and from the island 29 30 Heavy rains produced by Amara also triggered flooding in some locations and caused soil erosion 31 32 Very Intense Tropical Cyclone Bruce edit Very intense tropical cyclone MFR Category 5 tropical cyclone SSHWS nbsp nbsp DurationDecember 20 Entered basin December 23Peak intensity220 km h 140 mph 10 min 920 hPa mbar On December 16 a complex of disturbed weather near Indonesia was designated as a tropical low by the Australian Bureau of Meteorology 33 In an area of only moderate inhibiting atmospheric conditions the low was able to steadily intensify reaching tropical cyclone status on December 18 as it tracked southwestward 34 At 2100 UTC on December 19 Bruce moved into the area of responsibility of Meteo France after crossing 90 E with maximum sustained winds of 155 km h 95 mph 35 Upon passage into the southwest Indian Ocean Bruce already had a well defined eye and further strengthening was anticipated 35 36 Six hours later the storm was upgraded to intense tropical cyclone status 37 At 1800 UTC that day Meteo France upgraded the system to very intense tropical cyclone status the highest rating possible on their tropical cyclone intensity scale 38 Over the next day Bruce transiently weakened to intense tropical cyclone status 39 but later regained the maximum classification at 0000 UTC on December 22 Consequently Bruce reached its peak intensity with winds of 220 km h 135 mph and a minimum pressure of 920 mbar hPa 27 17 inHg 40 Following peak intensity Bruce began to steadily weaken as the storm s deep region of convection began to diminish 41 At 1200 UTC on December 22 the storm was downgraded back to intense tropical cyclone status for a final time as it was becoming increasingly asymmetric 42 43 During the same timeframe Bruce began to curve around the western periphery of a nearby subtropical ridge redirecting the cyclone s path towards the south 43 On December 23 the cyclone s eye finally succumbed to cooling sea surface temperatures and Bruce was downgraded to a low end tropical cyclone by Meteo France 44 45 By the end of the day Bruce was downgraded further to severe tropical storm intensity as the bulk of convection began to shear away from the low level circulation center 46 47 Accelerating southeastwards Bruce transitioned into an extratropical cyclone on December 24 ceasing Meteo France s monitoring operations 48 Its remnants exited the basin and re entered the Australian region basin on December 25 citation needed Intense Tropical Cyclone Bejisa edit Main article Cyclone Bejisa Intense tropical cyclone MFR Category 4 tropical cyclone SSHWS nbsp nbsp DurationDecember 27 January 4Peak intensity175 km h 110 mph 10 min 950 hPa mbar This section needs to be updated Please help update this article to reflect recent events or newly available information November 2014 In late December 2013 computer forecast models began to predict the development and cyclogenesis of a disturbance within the monsoon trough north of Madagascar 49 At 1800 UTC on December 27 the Joint Typhoon Warning Center JTWC noted a discrete area of disturbed weather approximately 1 350 km 840 mi north northwest of Reunion that corresponded with model forecasts and had the potential to develop 50 Accompanied by a low level circulation center the monitored storm complex developed rainbands about its southern periphery the following day 51 At 1200 UTC on December 28 Meteo France deemed the system sufficiently organized to be considered a tropical disturbance the fourth system to be given such a classification by the agency that season 52 Upon its designation the disturbance was analyzed to have an unusually high barometric pressure based on nearby weather station observations 53 Meteo France projected for the system to peak as a tropical cyclone before slightly weakening before impacting the Mascarene Islands 54 Tracking southward the disturbance steadily organized following December 28 As a result of wind shear the system s low level circulation centre remained partially exposed though the shearing conditions were expected to lessen 55 At 0000 UTC on December 29 the disturbance was upgraded to a tropical depression 56 At 1800 UTC that day the depression intensified to moderate tropical storm intensity thus receiving the name Bejisa by the Mauritius Meteorological Services 57 58 This coincided with the improving satellite appearance of the storm s central dense overcast 58 Intensification subsequently quickened and at 0600 UTC the next day Bejisa was considered to be a severe tropical storm 59 Concurrently a strengthening ridge in the mid levels of the troposphere began to steer the storm towards the south southeast 60 Following the development of a small pinhole eye Bejisa was upgraded to tropical cyclone status at 1200 UTC on December 30 61 followed by intense tropical cyclone status six hours thereafter 62 This intensification phase was short lived as an eyewall replacement cycle resulted in a slight deterioration and fluctuation of the storm s organization and structure 63 Tropical Depression 05 edit Tropical depression MFR nbsp nbsp DurationJanuary 7 January 10Peak intensity55 km h 35 mph 10 min 997 hPa mbar The initial development of the season s fifth tropical depression was quickly paced The JTWC first began monitoring the system in its advisories at 1800 UTC on January 7 while the area of disturbed weather was within the Mozambique Channel By that time a well defined low level circulation center had already developed and computer models indicated that tropical cyclogenesis was a likely probability due to the storm s expected track within a favorable atmospheric environment 64 At 1200 UTC on January 8 Meteo France classified the system as a zone of disturbed weather 65 though at the time the storm s convective activity was intermittent 66 Shortly after designation the system developed albeit shallow convective banding 64 At 0600 UTC the following day the zone of disturbed weather was upgraded to tropical depression status while just off the west coast of Madagascar 67 Forecasts early in the depression s history indicated that heavy rainfall was likely in areas of southwestern Madagascar 68 though these rains would come during an extended period of abnormally dry weather 69 As a result the Madagascar National Bureau for Risk and Disaster Management issued a red alert signifying imminent heavy rain for five Malagasy districts and a yellow alert signifying a threat of heavy rain in seven districts In Morondava 205 people were evacuated to safe havens where authorities provided food 68 Intense Tropical Cyclone Colin edit Intense tropical cyclone MFR Category 4 tropical cyclone SSHWS nbsp nbsp DurationJanuary 9 Entered basin January 14Peak intensity205 km h 125 mph 10 min 915 hPa mbar A tropical low in the Australian region basin formed on January 6 which was about 450 km 280 mi east northeast of Christmas Island 70 Over the next days the system moved rapidly westwards and entered the Southwest Indian Ocean during the morning of January 9 71 Despite being under significant wind shear the system managed to organize a low level eye which was detectable in microwave imagery 72 As a result the storm was upgraded to moderate tropical storm strength and named Colin the next day 73 On January 11 shear let up allowing Colin favourable conditions for strengthening Tracking southwest Colin rapidly intensified much faster than initial predictions expected into an intense tropical cyclone during the succeeding 24 hours Six hours later on January 12 Colin had reached its peak intensity of 185 km h 115 mph 74 Just like cyclones Amara and Bruce Colin had undergone rapid deepening But by January 13 Colin s eyewall had become severely eroded and the system was downgraded to a severe tropical storm As it tracked further into cooler waters the storm weakened to tropical storm strength early on January 14 and made a turn to the southeast Environmental conditions continued to become unfavourable and the storm transitioned into an extratropical cyclone on January 15 75 Moderate Tropical Storm Deliwe edit Moderate tropical storm MFR Tropical storm SSHWS nbsp nbsp DurationJanuary 14 January 22Peak intensity85 km h 50 mph 10 min 990 hPa mbar An area of convection accompanied by a broad circulation was first noted within a region of moderate wind shear by the Joint Typhoon Warning Center early on January 15 It was located for the most part over land and it drifted out into the Mozambique Channel during the same day On January 16 the small system tracked south southwest and was designated by MFR as Tropical Disturbance 7 Shortly thereafter JTWC declared it as Tropical Cyclone 09S citation needed At 1800z Meteo France noted that the system was maintaining a tight curved band pattern and the Madagascar Meteorological Service named the storm Deliwe 76 Throughout the next 24 hours Deliwe managed to persist as a moderate tropical storm while it moved away from the Madagascar coast but increasing shear associated with an upper level trough weakened the storm back to a tropical depression citation needed Deliwe turned west and convection sheared away to the south exposing the low level circulation center but the storm maintained a small region of gale force winds for a brief period after Reunion issued their last advisory on the system 77 The remnants of Deliwe turned back to the north dissipating as they approached Mozambique Deliwe produced heavy rains in the Melaky region of Madagascar and caused significant flooding resulting in at least two fatalities Additionally one person went missing after being swept away by the swollen Mahajamba River in Mitsinjo In Mahajanga rising waters left 463 people homeless Strong wind gusts caused some damage most notably the roof of a school in Soalala Boeny was blown off 78 Zone of Disturbed Weather 08 edit Zone of disturbed weather MFR nbsp nbsp DurationJanuary 16 January 20Peak intensity35 km h 25 mph 10 min 1004 hPa mbar This section does not cite any sources Please help improve this section by adding citations to reliable sources Unsourced material may be challenged and removed October 2021 Learn how and when to remove this template message This section needs expansion You can help by adding to it May 2014 A broad of low pressure formed east northeast of Madagascar late on January 16 Due to warm waters it intensified into Zone of Disturbed Weather 08 early on January 18 The system degenerated to a remnant low about 12 hours later due to cool waters and vertical windshear Early on January 21 the remnants of the system fully dissipated after making landfall on Madagascar citation needed Tropical Disturbance 09 edit Tropical disturbance MFR nbsp nbsp DurationJanuary 24 January 31Peak intensity45 km h 30 mph 10 min 1002 hPa mbar This section is empty You can help by adding to it January 2014 Severe Tropical Storm Edilson edit Severe tropical storm MFR Tropical storm SSHWS nbsp nbsp DurationFebruary 3 February 7Peak intensity105 km h 65 mph 10 min 978 hPa mbar Less than one week since the last disturbance dissipated another disturbance formed on February 3 Late on February 4 the MFR and JTWC upgraded it to Moderate Tropical Storm Edilson The next day the storm affected the Mauritius Islands with very heavy rainfall 79 Severe Tropical Storm Fobane edit Severe tropical storm MFR Tropical storm SSHWS nbsp nbsp DurationFebruary 5 February 16Peak intensity110 km h 70 mph 10 min 975 hPa mbar As Severe Tropical Storm Edilson reached peak intensity a tropical depression formed to its northeast It was upgraded into Tropical Depression 11 by Meteo France and it rapidly intensified into Severe Tropical Storm Fobane by February 8 Throughout February 9 Fobane rapidly accelerated to the south and curved to the east The storm interacted with an upper level trough and low oceanic heat content altering its structure At noon on February 10 Meteo France declared that Fobane had transitioned into a hybrid but warm core cyclone meriting the classification of subtropical depression citation needed Convection rapidly formed coinciding with a 10 millibar drop on February 11 80 and Fobane reached peak intensity during the next day while subtropical In the following days Fobane turned south and then west slowing down as a new ridge of high pressure built up to its west The storm continued into cooler waters and became extratropical on February 14 citation needed Severe Tropical Storm Guito edit Severe tropical storm MFR Category 1 tropical cyclone SSHWS nbsp nbsp DurationFebruary 17 February 21Peak intensity110 km h 70 mph 10 min 980 hPa mbar An area of convection over eastern Mozambique moved into the Mozambique Channel and was designated a Tropical Disturbance on February 18 81 Later that day the JTWC gave the designation of 15S It steadily intensified into Severe Tropical Storm Guito on February 18 The next day Guito intensified into a Category 1 tropical cyclone and a ragged eye formed 82 Subtropical Depression 13 edit Subtropical depression MFR nbsp nbsp DurationFebruary 25 March 1Peak intensity75 km h 45 mph 10 min 993 hPa mbar On February 27 RSMC La Reunion reported that a subtropical depression had formed 725 km 450 mi southeast of Durban South Africa 83 Very Intense Tropical Cyclone Hellen edit This section does not cite any sources Please help improve this section by adding citations to reliable sources Unsourced material may be challenged and removed October 2021 Learn how and when to remove this template message Very intense tropical cyclone MFR Category 4 tropical cyclone SSHWS nbsp nbsp DurationMarch 27 April 2Peak intensity230 km h 145 mph 10 min 915 hPa mbar Main article Cyclone Hellen One month after Subtropical Depression 13 had formed a zone of disturbed weather rapidly intensified into Tropical Disturbance 14 late on March 27 Due to favorable conditions and entering warm waters it rapidly became Severe Tropical Storm Hellen early on March 30 Explosive intensification occurred making Hellen an intense tropical cyclone the same day As Hellen reached its peak intensity it then rapidly weakened to a tropical disturbance due to land interaction with Madagascar During the next several days Hellen s remnants moved southwestward while continuing to weaken On April 5 Hellen s remnants made landfall on Mozambique and dissipated shortly afterwards Moderate Tropical Storm Ivanoe edit This section does not cite any sources Please help improve this section by adding citations to reliable sources Unsourced material may be challenged and removed October 2021 Learn how and when to remove this template message Moderate tropical storm MFR Tropical storm SSHWS nbsp nbsp DurationApril 3 April 6Peak intensity85 km h 50 mph 10 min 987 hPa mbar Tropical Disturbance 15 formed on April 4 about 1 155 km 718 mi south east of Diego Garcia On April 5 the system intensified into Moderate Tropical Storm Ivanoe During the same day Ivanoe strengthened to a Severe Tropical Storm and weakened back to a Moderate Tropical Storm Moderate Tropical Storm Ivanoe weakened further as it entered cool waters On April 6 the MFR made its final advisories on Ivanoe as the system transitioned into an extratropical cyclone Ivanoe s extratropical remnants continued to move in a southeastward direction as it affected the eastern part of Australia During the morning of April 9 the remnants of Ivanoe fully dissipated Storm names editWithin the South west Indian Ocean Tropical Depressions and Subtropical Depressions that are judged to have 10 minute sustained windspeeds of 65 km h 40 mph by the Regional Specialized Meteorological Center on La Reunion Island France RSMC La Reunion are usually assigned a name However it is the Sub Regional Tropical Cyclone Advisory Centers in Mauritius and Madagascar who name the systems The Sub Regional Tropical Cyclone Advisory Center in Mauritius names the storm should it intensify into a moderate tropical storm between 55 E and 90 E if the storm should intensify into a moderate tropical storm between 30 E and 55 E then the Sub Regional Tropical Cyclone Advisory Center in Madagascar assigns the appropriate name to the storm Tropical cyclones that move into this region from the Australian Region will not receive a new name New name lists are used every year whilst a name is normally only used once so thus no names are retired 84 Amara Bejisa Colin Deliwe Edilson Fobane Guito Hellen Ivanoe Jirani unused Katundu unused Letso unused Mirana unused Naserian unused Opang unused Paya unused Querida unused Romane unused Singano unused Tarus unused Unami unused Vuma unused Wamil unused Xolile unused Yasmine unused Zamile unused During December Severe Tropical Cyclone Bruce entered the Southwestern Indian Ocean basin from the Australian area of responsibility Seasonal effects editThis table lists all of the tropical cyclones and subtropical cyclones that were monitored during the 2013 2014 South West Indian Ocean cyclone season Information on their intensity duration name areas affected primarily comes from RSMC La Reunion Death and damage reports come from either press reports or the relevant national disaster management agency while the damage totals are given in 2013 USD Name Dates Peak intensity Areas affected Damage USD Deaths RefsCategory Wind speed Pressure01 October 23 27 Moderate Tropical Storm 65 km h 40 mph 997 hPa 29 44 inHg Chagos Archipelago None NoneAmara December 14 27 Intense Tropical Cyclone 205 km h 125 mph 935 hPa 27 61 inHg Rodrigues None NoneBruce December 20 23 nb 1 Very Intense Tropical Cyclone 225 km h 140 mph 920 hPa 27 17 inHg None None NoneBejisa December 27 January 4 Intense Tropical Cyclone 175 km h 110 mph 950 hPa 28 05 inHg Seychelles Reunion Mauritius gt 89 2 million 105 January 7 10 Tropical Depression 55 km h 35 mph 997 hPa 29 44 inHg Mozambique Madagascar None NoneColin January 9 14 Intense Tropical Cyclone 205 km h 125 mph 915 hPa 27 02 inHg None None NoneDeliwe January 14 22 Moderate Tropical Storm 85 km h 55 mph 990 hPa 29 23 inHg Madagascar Mozambique Unknown 208 January 16 20 Zone of Disturbed Weather 35 km h 20 mph 1 004 hPa 29 65 inHg Madagascar None None09 January 24 31 Tropical Disturbance 45 km h 30 mph 1 002 hPa 29 59 inHg Mozambique None NoneEdilson February 3 7 Severe Tropical Storm 105 km h 65 mph 978 hPa 28 88 inHg Mauritius Reunion None NoneFobane February 5 16 Severe Tropical Storm 110 km h 70 mph 975 hPa 28 79 inHg None None NoneGuito February 17 21 Severe Tropical Storm 110 km h 70 mph 980 hPa 28 94 inHg Mozambique Madagascar None None13 February 25 March 1 Subtropical Depression 80 km h 50 mph 993 hPa 29 32 inHg None None NoneHellen March 26 April 5 Very Intense Tropical Cyclone 230 km h 145 mph 915 hPa 27 02 inHg Mozambique Comoro Islands Madagascar Unknown 8Ivanoe April 3 6 Moderate Tropical Storm 85 km h 55 mph 987 hPa 29 15 inHg None None NoneSeason aggregates15 systems October 21 April 6 230 km h 145 mph 915 hPa 27 02 inHg gt 89 2 million 11See also edit nbsp Tropical cyclones portal nbsp Wikimedia Commons has media related to 2013 14 South West Indian Ocean cyclone season Tropical cyclones in 2013 and 2014 South West Indian Ocean tropical cyclone List of Southern Hemisphere tropical cyclone seasons Atlantic hurricane seasons 2013 2014 Pacific hurricane seasons 2013 2014 Pacific typhoon seasons 2013 2014 North Indian Ocean cyclone seasons 2013 2014 2013 14 Australian region cyclone season 2013 14 South Pacific cyclone seasonNotes edit Bruce formed in the Australian cyclone region on December 16 but entered the South West Indian Ocean on December 19 It re entered the Australian region on December 25 as a post tropical low References edit a b The RA I Tropical Cyclone Committee 2012 Tropical Cyclone Operational Plan 2012 PDF World Meteorological Organisation p 11 Archived PDF from the original on May 12 2013 Retrieved December 5 2012 Joint Typhoon Warning Center October 21 2013 Significant Tropical Weather Advisory For The Indian Ocean October 21 1130 UTC TXT Pearl Harbor Hawaii United States National Oceanic and Atmospheric Administration Archived from the original on 23 October 2013 Retrieved 26 December 2013 Joint Typhoon Warning Center October 21 2013 Significant Tropical Weather Advisory For The Indian Ocean October 21 1800 UTC TXT Pearl Harbor Hawaii United States National Oceanic and Atmospheric Administration Archived from the original on 23 October 2013 Retrieved 26 December 2013 Meteo France October 25 2013 Tropical Disturbance 1 Warning Number 001 1 TXT United States National Oceanic and Atmospheric Administration Archived from the original on 27 October 2013 Retrieved 21 December 2013 Meteo France October 25 2013 Tropical Disturbance 1 Forecast Warning Number 001 1 TXT United States National Oceanic and Atmospheric Administration Archived from the original on 27 October 2013 Retrieved 21 December 2013 a b Meteo France October 26 2013 Tropical Depression 1 Warning Number 003 1 TXT United States National Oceanic and Atmospheric Administration Archived from the original on 27 October 2013 Retrieved 21 December 2013 Meteo France October 26 2013 Tropical Depression 1 Warning Number 005 1 TXT United States National Oceanic and Atmospheric Administration Archived from the original on 27 October 2013 Retrieved 21 December 2013 Meteo France October 27 2013 Tropical Depression 1 Warning Number 007 1 TXT United States National Oceanic and Atmospheric Administration Archived from the original on 27 October 2013 Retrieved 21 December 2013 Joint Typhoon Warning Center October 27 2013 Tropical Cyclone 01S One Warning NR 002 TXT Pearl Harbor Hawaii United States National Oceanic and Atmospheric Administration Archived from the original on 28 October 2013 Retrieved 26 December 2013 Meteo France October 27 2013 Tropical Disturbance 1 Warning Number 008 1 TXT United States National Oceanic and Atmospheric Administration Archived from the original on 28 October 2013 Retrieved 21 December 2013 Joint Typhoon Warning Center October 28 2013 Tropical Cyclone 01S One Warning NR 003 TXT Pearl Harbor Hawaii United States National Oceanic and Atmospheric Administration Archived from the original on 28 October 2013 Retrieved 26 December 2013 Meteo France October 27 2013 Tropical Disturbance 1 Warning Number 009 1 TXT United States National Oceanic and Atmospheric Administration Archived from the original on 28 October 2013 Retrieved 21 December 2013 Bulletin For Cyclonic Activity And Significant Tropical Weather In The Southwest Indian Ocean December 13 1200 UTC PDF Meteo France December 13 2013 Archived from the original PDF on 24 December 2013 Retrieved 21 December 2013 Meteo France December 14 2013 Tropical Disturbance 2 Warning Number 001 2 TXT United States National Oceanic and Atmospheric Administration Archived from the original on 15 December 2013 Retrieved 21 December 2013 Meteo France December 15 2013 Tropical Depression 2 Warning Number 003 2 TXT United States National Oceanic and Atmospheric Administration Archived from the original on 15 December 2013 Retrieved 21 December 2013 Joint Typhoon Warning Center December 15 2013 Tropical Cyclone Formation Alert December 15 1500 UTC TXT Honolulu Hawaii United States National Oceanic and Atmospheric Administration Archived from the original on 17 December 2013 Retrieved 21 December 2013 Meteo France December 16 2013 Moderate Tropical Storm 2 Amara Warning Number 009 2 TXT United States National Oceanic and Atmospheric Administration Archived from the original on 17 December 2013 Retrieved 21 December 2013 Joint Typhoon Warning Center December 18 2013 Tropical Cyclone 03S Amara Warning NR 004 TXT Honolulu Hawaii United States National Oceanic and Atmospheric Administration Archived from the original on 19 December 2013 Retrieved 23 December 2013 Meteo France December 18 2013 Tropical Cyclone 2 Amara Warning Number 016 2 TXT United States National Oceanic and Atmospheric Administration Archived from the original on 19 December 2013 Retrieved 23 December 2013 Joint Typhoon Warning Center December 18 2013 Tropical Cyclone 03S Amara Warning NR 006 TXT Honolulu Hawaii United States National Oceanic and Atmospheric Administration Archived from the original on 20 December 2013 Retrieved 23 December 2013 Meteo France December 19 2013 Tropical Cyclone 2 Amara Warning Number 019 2 TXT United States National Oceanic and Atmospheric Administration Archived from the original on 20 December 2013 Retrieved 23 December 2013 Meteo France December 21 2013 Intense Tropical Cyclone 2 Amara Warning Number 027 2 TXT United States National Oceanic and Atmospheric Administration Archived from the original on 21 December 2013 Retrieved 23 December 2013 Joint Typhoon Warning Center December 21 2013 Tropical Cyclone 03S Amara Warning NR 011 TXT Honolulu Hawaii United States National Oceanic and Atmospheric Administration Archived from the original on 22 December 2013 Retrieved 23 December 2013 Joint Typhoon Warning Center December 22 2013 Tropical Cyclone 03S Amara Warning NR 012 TXT Honolulu Hawaii United States National Oceanic and Atmospheric Administration Archived from the original on 23 December 2013 Retrieved 23 December 2013 Meteo France December 22 2013 Tropical Depression 2 Ex Amara Warning Number 036 2 TXT United States National Oceanic and Atmospheric Administration Archived from the original on 24 December 2013 Retrieved 24 December 2013 Amara continue de se rapprocher de Rodrigues Amara continues to approach Rodrigues in French Imaz Press Reunion December 20 2013 Retrieved 23 December 2013 a b Rodrigues en alerte maximale in French Clicanoo re December 21 2013 Retrieved 23 December 2013 a b Cyclone tropical intense Amara des premiers degats a Rodrigues Intense tropical cyclone Amara first damage on Rodrigues in French Imaz Press Reunion December 20 2013 Retrieved 23 December 2013 a b Hoair Gilbert December 21 2013 Rodrigues sous le cyclone tropical intense Amara in French France Televisions Retrieved 23 December 2013 United Nations Office for the Coordination of Humanitarian Affairs December 23 2013 Southern Africa Weekly Report 17 to 23 December 2013 Report ReliefWeb Retrieved 23 December 2013 Catastrophes Naturelles Rodrigues touchee par le cyclone Amara in French National Commission for Computing and Liberties Retrieved 23 December 2013 Rodrigues Le passage du cyclone Amara provoque des degats considerables in French Zinfos974 December 21 2013 Retrieved 23 December 2013 Bureau of Meteorology December 16 2013 Tropical Cyclone Technical Bulletin for Tropical Low 03U December 16 0600 UTC TXT Perth Australia United States National Oceanic and Atmospheric Administration Archived from the original on 16 December 2013 Retrieved 26 December 2013 Bureau of Meteorology December 18 2013 Tropical Cyclone Technical Bulletin for Tropical Cyclone Bruce 03U December 18 0000 UTC TXT Perth Australia United States National Oceanic and Atmospheric Administration Archived from the original on 18 December 2013 Retrieved 26 December 2013 a b Meteo France December 20 2013 Tropical Cyclone 3 Bruce Warning Number 001 3 TXT Unisys Archived from the original on 21 December 2013 Retrieved 26 December 2013 Joint Typhoon Warning Center December 20 2013 Tropical Cyclone 04S Bruce Warning NR 006 TXT Honolulu Hawaii United States National Oceanic and Atmospheric Administration Archived from the original on 20 December 2013 Retrieved 26 December 2013 Meteo France December 20 2013 Intense Tropical Cyclone 3 Bruce Warning Number 002 3 TXT Unisys Archived from the original on 21 December 2013 Retrieved 26 December 2013 Meteo France December 20 2013 Very Intense Tropical Cyclone 3 Bruce Warning Number 004 3 TXT United States National Oceanic and Atmospheric Administration Archived from the original on 21 December 2013 Retrieved 26 December 2013 Meteo France December 21 2013 Intense Tropical Cyclone 3 Bruce Warning Number 007 3 TXT United States National Oceanic and Atmospheric Administration Archived from the original on 22 December 2013 Retrieved 26 December 2013 Meteo France December 22 2013 Very Intense Tropical Cyclone 3 Bruce Warning Number 009 3 TXT Unisys Archived from the original on 22 December 2013 Retrieved 26 December 2013 Joint Typhoon Warning Center December 22 2013 Tropical Cyclone 04S Bruce Warning NR 011 TXT Honolulu Hawaii United States National Oceanic and Atmospheric Administration Archived from the original on 23 December 2013 Retrieved 26 December 2013 Meteo France December 22 2013 Intense Tropical Cyclone 3 Bruce Warning Number 011 3 TXT United States National Oceanic and Atmospheric Administration Archived from the original on 23 December 2013 Retrieved 26 December 2013 a b Joint Typhoon Warning Center December 23 2013 Tropical Cyclone 04S Bruce Warning NR 012 TXT Honolulu Hawaii United States National Oceanic and Atmospheric Administration Archived from the original on 23 December 2013 Retrieved 26 December 2013 Meteo France December 23 2013 Tropical Cyclone 3 Bruce Warning Number 015 3 TXT United States National Oceanic and Atmospheric Administration Archived from the original on 24 December 2013 Retrieved 26 December 2013 Joint Typhoon Warning Center December 23 2013 Tropical Cyclone 04S Bruce Warning NR 013 TXT Honolulu Hawaii United States National Oceanic and Atmospheric Administration Archived from the original on 24 December 2013 Retrieved 26 December 2013 Meteo France December 23 2013 Severe Tropical Cyclone 3 Bruce Warning Number 016 3 TXT United States National Oceanic and Atmospheric Administration Archived from the original on 24 December 2013 Retrieved 26 December 2013 Joint Typhoon Warning Center December 23 2013 Tropical Cyclone 04S Bruce Warning NR 014 TXT Honolulu Hawaii United States National Oceanic and Atmospheric Administration Archived from the original on 24 December 2013 Retrieved 26 December 2013 Meteo France December 24 2013 Post Tropical Depression 3 Ex Bruce Warning Number 017 3 TXT United States National Oceanic and Atmospheric Administration Archived from the original on 24 December 2013 Retrieved 26 December 2013 Bulletin For Cyclonic Activity And Significant Tropical Weather In The Southwest Indian Ocean December 27 1200 UTC PDF Meteo France December 27 2013 Archived from the original PDF on 4 January 2014 Retrieved 30 December 2013 Joint Typhoon Warning Center December 27 2013 Significant Tropical Weather Advisory For The Indian Ocean December 27 1830 UTC TXT Pearl Harbor Hawaii United States National Oceanic and Atmospheric Administration Archived from the original on 29 December 2013 Retrieved 30 December 2013 Joint Typhoon Warning Center December 28 2013 Significant Tropical Weather Advisory For The Indian Ocean December 28 1000 UTC TXT Pearl Harbor Hawaii United States National Oceanic and Atmospheric Administration Archived from the original on 29 December 2013 Retrieved 30 December 2013 Meteo France December 28 2013 Tropical Disturbance 4 Warning Number 001 4 TXT United States National Oceanic and Atmospheric Administration Archived from the original on 29 December 2013 Retrieved 30 December 2013 Bulletin For Cyclonic Activity And Significant Tropical Weather In The Southwest Indian Ocean December 28 1200 UTC PDF Meteo France December 28 2013 Archived from the original PDF on 29 November 2014 Retrieved 30 December 2013 Meteo France December 28 2013 Tropical Disturbance 1 Forecast Warning Number 001 4 TXT United States National Oceanic and Atmospheric Administration Archived from the original on 29 December 2013 Retrieved 30 December 2013 Joint Typhoon Warning Center December 29 2013 Tropical Cyclone Formation Alert December 29 0300 UTC TXT Honolulu Hawaii United States National Oceanic and Atmospheric Administration Archived from the original on 29 December 2013 Retrieved 30 December 2013 Meteo France December 29 2013 Tropical Depression 4 Warning Number 003 4 TXT United States National Oceanic and Atmospheric Administration Archived from the original on 29 December 2013 Retrieved 30 December 2013 Meteo France December 29 2013 Moderate Tropical Storm 4 Bejisa Warning Number 007 4 TXT United States National Oceanic and Atmospheric Administration Archived from the original on 30 December 2013 Retrieved 30 December 2013 a b Meteo France December 29 2013 Moderate Tropical Storm 4 Bejisa Forecast Warning Number 006 4 TXT United States National Oceanic and Atmospheric Administration Archived from the original on 30 December 2013 Retrieved 30 December 2013 Meteo France December 30 2013 Severe Tropical Storm 4 Bejisa Warning Number 008 4 TXT United States National Oceanic and Atmospheric Administration Archived from the original on 30 December 2013 Retrieved 30 December 2013 Meteo France December 30 2013 Severe Tropical Storm 4 Bejisa Forecast Warning Number 008 4 TXT United States National Oceanic and Atmospheric Administration Archived from the original on 30 December 2013 Retrieved 30 December 2013 Meteo France December 30 2013 Tropical Cyclone 4 Bejisa Warning Number 009 4 TXT Unsys Archived from the original on 30 December 2013 Retrieved 31 December 2013 Meteo France December 30 2013 Intense Tropical Cyclone 4 Bejisa Warning Number 010 4 TXT Unsys Archived from the original on 31 December 2013 Retrieved 31 December 2013 Meteo France December 31 2013 Intense Tropical Cyclone 4 Bejisa Forecast Warning Number 013 4 TXT United States National Oceanic and Atmospheric Administration Archived from the original on 31 December 2013 Retrieved 31 December 2013 a b Joint Typhoon Warning Center January 7 2014 Significant Tropical Weather Advisory For The Indian Ocean January 7 1800 UTC TXT Pearl Harbor Hawaii United States National Oceanic and Atmospheric Administration Archived from the original on 8 January 2014 Retrieved 9 January 2014 Meteo France January 8 2014 Zone of Disturbed Weather 5 Warning Number 001 5 TXT in French United States National Oceanic and Atmospheric Administration Archived from the original on 9 January 2014 Retrieved 9 January 2014 Meteo France January 8 2014 Zone of Disturbed Weather 5 Forecast Warning Number 001 5 TXT United States National Oceanic and Atmospheric Administration Archived from the original on 9 January 2014 Retrieved 9 January 2014 Meteo France January 9 2014 Tropical Depression 5 Warning Number 002 5 TXT in French United States National Oceanic and Atmospheric Administration Archived from the original on 9 January 2014 Retrieved 9 January 2014 a b United Nations Office for the Coordination of Human Affairs January 8 2014 Tropical Depression Path as of 8th January 2014 PDF Report ReliefWeb Retrieved 10 January 2014 United States National Oceanic and Atmospheric Administration s Climate Prediction Center January 8 2014 Africa Hazards Outlook January 9 January 15 2014 Report ReliefWeb Retrieved 10 January 2014 Tropical Cyclone Outlook for the Western Region Issued at 1 35 pm WST on Monday 6 January 2014 TCWC Perth 6 January 2014 Archived from the original on 7 January 2014 Retrieved 7 January 2014 Tropical Cyclone Outlook for the Western Region Issued at 2 00 pm WST on Thursday 9 January 2014 TCWC Perth 9 January 2014 Archived from the original on 9 January 2014 Retrieved 9 January 2014 Moderate Tropical Storm 6 Colin Warning 3 RSMC La Reunion 10 January 2014 Archived from the original on 10 January 2014 Retrieved 19 February 2014 Cyclone Warning 003 for Moderate Tropical Storm Colin RSMC La Reunion 10 January 2014 Archived from the original on 10 January 2014 Retrieved 10 January 2014 Intense Tropical Cyclone 6 Colin Warning 12 RSMC La Reunion 12 January 2014 Archived from the original on 12 January 2014 Retrieved 19 February 2014 NASA Sees Tropical Cyclone Colin s Final Bow NASA 10 January 2014 Retrieved January 15 2014 Moderate Tropical Storm 7 Deliwe Warning 2 RSMC La Reunion 16 January 2014 Archived from the original on 17 January 2014 Retrieved 19 February 2014 Remnant Low 7 Deliwe Warning 7 RSMC La Reunion 18 January 2014 Archived from the original on 18 January 2014 Retrieved 19 February 2014 Le cyclone Deliwe devaste l Ouest de Madagascar in French L Express de Madagascar January 18 2014 Archived from the original on 2014 01 25 Retrieved January 19 2014 NASA Spots Very Heavy Rainfall Rates in Tropical Cyclone Edilson NASA 5 February 2014 Retrieved February 7 2014 NASA s TRMM Satellite Eyes Rainfall in Tropical Cyclone Fobane Rob Gutro amp NASA 7 February 2014 Retrieved February 10 2014 Tropical Cyclone Forecast Warning 01 RSMC La Reunion Archived from the original on December 28 2013 Retrieved February 18 2014 NASA satellite sees a ragged eye develop in Tropical Cyclone Guito 19 February 2014 Retrieved February 19 2014 Forecast Warning 001 for Subtropical Depression 13 RSMC La Reunion 27 February 2014 Archived from the original on 27 February 2014 Retrieved 27 February 2014 Regional Association I Tropical Cyclone Committee 2010 Tropical Cyclone Operational Plan for the South West Indian Ocean PDF World Meteorological Organization Retrieved 2013 07 04 External links editJoint Typhoon Warning Center JTWC Archived 2015 08 09 at the Wayback Machine Meteo France RSMC La Reunion Cyclones Indian Ocean World Meteorological Organization Retrieved from https en wikipedia org w index php title 2013 14 South West Indian Ocean cyclone season amp oldid 1173444318, wikipedia, wiki, book, books, library,

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