The 1970–71 South-West Indian Ocean cyclone season was an above-average cyclone season. The season officially ran from November 1, 1970, to April 30, 1971.
Andrea-Claudine, 10 November to 13 November 1970 in central Indian Ocean
Intense Tropical Cyclone Hilary–Dominique
Intense tropical cyclone (MFR)
Category 3 tropical cyclone (SSHWS)
Duration
December 12 – December 28
Peak intensity
165 km/h (105 mph) (10-min)
Hilary, 11 to 18 December 1970 in central Indian Ocean
Moderate Tropical Storm Edith
Moderate tropical storm (MFR)
Tropical storm (SSHWS)
Duration
January 5 – January 10
Peak intensity
65 km/h (40 mph) (10-min)
Tropical Cyclone Felicie
Tropical cyclone (MFR)
Category 1 tropical cyclone (SSHWS)
Duration
January 17 – February 6
Peak intensity
120 km/h (75 mph) (10-min)
Cyclone Felicie was a slow moving cyclone that made a large number of landfalls in Madagascar, 4, in addition to a single landfall in Mozambique, which reportedly killed 30 people. The storm followed a very erratic track due to unusual steering patterns, and went through many cycles of strengthening and weakening as it slowly trudged to the south. Felicie reached Tropical Cyclone status three separate times, before finally becoming extratropical southwest of Madagascar.[1]
Tropical Cyclone Myrtle–Ginette
Tropical cyclone (MFR)
Category 2 tropical cyclone (SSHWS)
Duration
January 15 – January 31
Peak intensity
150 km/h (90 mph) (10-min)
On January 19, Severe Tropical Cyclone Myrtle entered the South-West Indian Ocean; therefore, it was assigned a second name, Ginette. The next day, Ginette reached hurricane status and developed a clear eye as it traveled generally west-southwestward. On January 22, Ginette curved southwestward and came within 72 kilometers (45 miles) of the island of Rodrigues. On Rodrigues, winds as high as 150 km/h (93 mph) were recorded along with a minimum barometric pressure of 989 mbar (29.2 inHg). Throughout the next two days, Ginette approached the island of Reunion, causing stormy weather that lasted until January 29. In Reunion, swells associated with Ginette reached 6 meters (20 feet) at times. On January 25, Ginette became stationary while located south of Reunion. The next day, Ginette encountered a ridge which caused it to execute a small clockwise loop. After completing the loop, Ginette accelerated southeastward and gradually weakened. By January 31, Ginette had transitioned into an extratropical cyclone.[2]
Tropical Cyclone Helga
Tropical cyclone (MFR)
Category 2 tropical cyclone (SSHWS)
Duration
February 2 – February 15
Peak intensity
150 km/h (90 mph) (10-min)
On February 8, Helga passed southeast of Réunion and Mauritius, bringing heavy rainfall to the former island, reaching 926 mm (36.5 in) at Commerson. Two people died on the island due to drowning.[3]
^Tropical Storm Felice, 17 January- 5 February. National Climatic Data Center (Report). Global tropical/extratropical cyclone climatic atlas. 1996. Retrieved February 11, 2019.
^Hurricane Ginette, 17–31 January. National Climatic Data Center (Report). Global tropical/extratropical cyclone climatic atlas. 1996. Retrieved February 12, 2019.
^Hurricane Helga, 3–12 February. National Climatic Data Center (Report). Global tropical/extratropical cyclone climatic atlas. 1996. Retrieved February 11, 2019.
March 05, 2023
1970, south, west, indian, ocean, cyclone, season, above, average, cyclone, season, season, officially, from, november, 1970, april, 1971, season, summary, mapseasonal, boundariesfirst, system, formed16, september, 1970last, system, dissipated21, march, 1971st. The 1970 71 South West Indian Ocean cyclone season was an above average cyclone season The season officially ran from November 1 1970 to April 30 1971 1970 71 South West Indian Ocean cyclone seasonSeason summary mapSeasonal boundariesFirst system formed16 September 1970Last system dissipated21 March 1971Strongest stormNameMaggie Muriel Maximum winds195 km h 120 mph 10 minute sustained Lowest pressure951 hPa mbar Seasonal statisticsTotal disturbances16Total depressions15Total storms15Tropical cyclones10Intense tropical cyclones4Very intense tropical cyclones0Total fatalities32Total damageUnknownRelated articles1970 71 Australian region cyclone season 1970 71 South Pacific cyclone seasonSouth West Indian Ocean tropical cyclone seasons1968 69 1969 70 1970 71 1971 72 1972 73 Contents 1 Systems 1 1 Tropical Disturbance Andree 1 2 Moderate Tropical Storm Betsy 1 3 Moderate Tropical Storm Andrea Claudine 1 4 Intense Tropical Cyclone Hilary Dominique 1 5 Moderate Tropical Storm Edith 1 6 Tropical Cyclone Felicie 1 7 Tropical Cyclone Myrtle Ginette 1 8 Tropical Cyclone Helga 1 9 Tropical Cyclone Tilly Iphigenie 1 10 Tropical Cyclone Joelle 1 11 Tropical Cyclone Kalinka 1 12 Tropical Cyclone Yvonne Lise 1 13 Intense Tropical Cyclone Maggie Muriel 1 14 Tropical Cyclone Nelly 2 See also 3 ReferencesSystems EditTropical Disturbance Andree Edit Tropical disturbance MFR Tropical depression SSHWS DurationSeptember 16 September 19Peak intensity45 km h 30 mph 10 min Moderate Tropical Storm Betsy Edit Moderate tropical storm MFR Tropical storm SSHWS DurationOctober 1 October 8Peak intensity65 km h 40 mph 10 min Moderate Tropical Storm Andrea Claudine Edit Moderate tropical storm MFR Tropical storm SSHWS DurationNovember 10 Crossed 80 E November 13Peak intensity65 km h 40 mph 10 min 970 hPa mbar Andrea Claudine 10 November to 13 November 1970 in central Indian Ocean Intense Tropical Cyclone Hilary Dominique Edit Intense tropical cyclone MFR Category 3 tropical cyclone SSHWS DurationDecember 12 December 28Peak intensity165 km h 105 mph 10 min Hilary 11 to 18 December 1970 in central Indian Ocean Moderate Tropical Storm Edith Edit Moderate tropical storm MFR Tropical storm SSHWS DurationJanuary 5 January 10Peak intensity65 km h 40 mph 10 min Tropical Cyclone Felicie Edit Tropical cyclone MFR Category 1 tropical cyclone SSHWS DurationJanuary 17 February 6Peak intensity120 km h 75 mph 10 min Cyclone Felicie was a slow moving cyclone that made a large number of landfalls in Madagascar 4 in addition to a single landfall in Mozambique which reportedly killed 30 people The storm followed a very erratic track due to unusual steering patterns and went through many cycles of strengthening and weakening as it slowly trudged to the south Felicie reached Tropical Cyclone status three separate times before finally becoming extratropical southwest of Madagascar 1 Tropical Cyclone Myrtle Ginette Edit Tropical cyclone MFR Category 2 tropical cyclone SSHWS DurationJanuary 15 January 31Peak intensity150 km h 90 mph 10 min On January 19 Severe Tropical Cyclone Myrtle entered the South West Indian Ocean therefore it was assigned a second name Ginette The next day Ginette reached hurricane status and developed a clear eye as it traveled generally west southwestward On January 22 Ginette curved southwestward and came within 72 kilometers 45 miles of the island of Rodrigues On Rodrigues winds as high as 150 km h 93 mph were recorded along with a minimum barometric pressure of 989 mbar 29 2 inHg Throughout the next two days Ginette approached the island of Reunion causing stormy weather that lasted until January 29 In Reunion swells associated with Ginette reached 6 meters 20 feet at times On January 25 Ginette became stationary while located south of Reunion The next day Ginette encountered a ridge which caused it to execute a small clockwise loop After completing the loop Ginette accelerated southeastward and gradually weakened By January 31 Ginette had transitioned into an extratropical cyclone 2 Tropical Cyclone Helga Edit Tropical cyclone MFR Category 2 tropical cyclone SSHWS DurationFebruary 2 February 15Peak intensity150 km h 90 mph 10 min On February 8 Helga passed southeast of Reunion and Mauritius bringing heavy rainfall to the former island reaching 926 mm 36 5 in at Commerson Two people died on the island due to drowning 3 Tropical Cyclone Tilly Iphigenie Edit Tropical cyclone MFR Category 1 tropical cyclone SSHWS DurationFebruary 14 entered basin February 17Peak intensity120 km h 75 mph 10 min 970 hPa mbar Tropical Cyclone Joelle Edit Tropical cyclone MFR Category 1 tropical cyclone SSHWS DurationFebruary 15 February 25Peak intensity120 km h 75 mph 10 min Tropical Cyclone Kalinka Edit Tropical cyclone MFR Category 2 tropical cyclone SSHWS DurationFebruary 16 February 26Peak intensity140 km h 85 mph 10 min Tropical Cyclone Yvonne Lise Edit Tropical cyclone MFR Category 1 tropical cyclone SSHWS DurationFebruary 21 March 3Peak intensity130 km h 80 mph 10 min Intense Tropical Cyclone Maggie Muriel Edit Intense tropical cyclone MFR Category 3 tropical cyclone SSHWS DurationMarch 7 March 18Peak intensity165 km h 105 mph 10 min 951 hPa mbar Maggie Muriel 7 to 20 March 1971 in central Indian Ocean Tropical Cyclone Nelly Edit Tropical cyclone MFR Category 1 tropical cyclone SSHWS DurationMarch 12 March 22Peak intensity120 km h 75 mph 10 min See also Edit Tropical cyclones portalAtlantic hurricane seasons 1970 1971 Eastern Pacific hurricane seasons 1970 1971 Western Pacific typhoon seasons 1970 1971 North Indian Ocean cyclone seasons 1970 1971References Edit Tropical Storm Felice 17 January 5 February National Climatic Data Center Report Global tropical extratropical cyclone climatic atlas 1996 Retrieved February 11 2019 Hurricane Ginette 17 31 January National Climatic Data Center Report Global tropical extratropical cyclone climatic atlas 1996 Retrieved February 12 2019 Hurricane Helga 3 12 February National Climatic Data Center Report Global tropical extratropical cyclone climatic atlas 1996 Retrieved February 11 2019 Retrieved from https en wikipedia org w index php title 1970 71 South West Indian Ocean cyclone season amp oldid 1141208160, wikipedia, wiki, book, books, library,
