On 21 December, the United States Joint Typhoon Warning Center and the Tropical Cyclone Warning Centre in Darwin, Australia, began monitoring an area of low pressure that had developed about 9,462 km (5,879 mi) to the northeast of Darwin.[1][2]
Tropical Low 04U developed into a Category 1 tropical cyclone on the morning of 25 December and moved slowly towards the Cobourg Peninsula.[3] The system reached Category 2 strength in the afternoon of 25 December.[4] In the evening of 28 December the system, downgraded to a tropical low, moved back onto the waters of the Gulf of Carpentaria.[5] The system continued to move eastward across the Cape York Peninsula and into the Coral Sea, even as the storm weakened, until Grant underwent an extratropical transition on 2 January 2012. Later on the same day, the extratropical remnant of Grant dissipated.
Preparations and impactedit
Northern Territoryedit
A gale warning was issued for Darwin and the Tiwi Islands on 24 December.[6] The system intensified on 25 December, reaching Category 2 status in the afternoon,[7] and a cyclone watch was declared between Dundee Beach and Nhulunbuy, with a cyclone warning issued for areas between Cape Fourcroy and Milingimbi including the Tiwi Islands.[8] The system crossed Van Diemen Gulf and made a second landfall east of Point Stuart in the early morning of 26 December. Shortly thereafter the cyclone was downgraded to Category 1,[9] and by that afternoon it was downgraded to a tropical low as it passed Jabiru in Kakadu National Park.[10] Jabiru Airport had received 71.0 mm (2.80 in) of rain by 9:00am on 26 December.[11][12] On 27 December the system was moving slowly south-east across Arnhem Land,[13] causing heavy rainfall. Ediths Fall Ridge recorded 385.0 mm (15.16 in) of rainfall, which produced damaging flooding.[14] A cyclone watch was issued on 27 December from Nhulunbuy to Numbalwar, including Groote Eylandt.[15]
Flooding associated with the system in the Katherine area cut off the Stuart Highway, washed cars off bridges and derailed a train.[15] The Adelaide–Darwin railway was severely damaged by the derailment of the Genesee & Wyoming freight train. The Ghan was forced to stop with 200 passengers in Katherine.[16] One week after the cyclone had passed freight companies were poised to raise transportation costs as shipping to Darwin would need to be done by road.[17] The railway between Katherine and Darwin would be out of service until the end of January 2012.[18]
On 28 December the system moved eastward, bringing with it heavy rainfall to the Roper-McArthur River districts.[19]
Queenslandedit
A cyclone watch was issued for Queensland for coastal areas from Thursday Island to Gilbert River Mouth[19] but was later cancelled when the system did not re-intensify to Category 1 strength. Late on 29 December the system as a tropical monsoon low was northwest of Pormpuraaw on the Cape York Peninsula[20] before making landfall in the early morning of 30 December south of Wiepa[21] near the aboriginal community of Aurukun.[22] A severe weather warning was issued for the Peninsula, North Tropical Coast and Gulf Country districts.[23] Later on 30 December the monsoon low passed Coen and out into the waters of the Coral Sea.
Referencesedit
^Unattributed (2011-12-21). "Significant tropical weather advisory for the Western and South Pacific ocean 2011-12-21 06z". Joint Typhoon Warning Center. United States Navy. Archived from the original on December 21, 2011. Retrieved 2011-12-28.
^Unattributed (2011-12-21). "Tropical Cyclone Technical Bulletin: Australia - Northern Region 2011-12-21 06z". Darwin Tropical Cyclone Warning Centre. Bureau of Meteorology. Archived from the original on December 21, 2011. Retrieved 2011-12-28.
^"TC Track". BOM. 25 December 2011. from the original on 7 January 2012. Retrieved 25 December 2011.
^. Archived from the original on 2014-01-02. Retrieved 2011-12-29.
^. Tropical Cyclone Warning Centre, Darwin. Archived from the original on 6 September 2011. Retrieved 28 December 2011.
^Partenza, Nathan (24 December 2011). "Darwin braces itself on Tracy anniversary as threat of holiday cyclone increases". The Age. Retrieved 24 December 2011.
^Peddie, Clair (25 December 2011). "Top End bunkers down for cyclone". The Advertiser. Retrieved 25 December 2011.
^. Archived from the original on 2014-01-02. Retrieved 2011-12-29.
^. NT News. 26 December 2011. Archived from the original on 15 March 2012. Retrieved 26 December 2011.
^Bevege, Allison (26 December 2011). "Cyclone Grant is officially dead". NT News. Retrieved 26 December 2011.[permanent dead link]
^"Latest Weather Observations for Jabiru (Issued at 3:05 pm CST Monday 26 December 2011)". BOM. 26 December 2011. Retrieved 26 December 2011. 26/09:00am 71.0mm
^Wood, David (27 December 2011). "More rain at the MCG". NT News. Retrieved 27 December 2011.[permanent dead link]
^Betts, Alyssa (27 December 2011). "Storm likely to get its puff back". NT News. Retrieved 27 December 2011.[permanent dead link]
^"Cyclone Grant likely to reform over Gulf". ABC. 27 December 2011. Retrieved 27 December 2011.
^ ab. NT News. 27 December 2011. Archived from the original on 19 January 2012. Retrieved 27 December 2011.
^Conlon, Thomas; Betts, Alyssa (27 December 2011). "Northern Territory cyclone floods derail train, cut nation in two". The Advertiser. Retrieved 27 December 2011.
^Betts, Alyssa (4 January 2012). "Freight costs to soar after train crash". NT News. Retrieved 4 January 2012.
^Booth, Meredith (4 January 2011). "Railway repairs expected late January". The Advertiser. Archived from the original on 14 January 2012. Retrieved 13 January 2011.
^ ab"Grant heads east to become a cyclone again". NT News. 28 December 2011. Retrieved 28 December 2011.[permanent dead link]
^"TROPICAL CYCLONE FORECAST TRACK MAP Ex-Tropical Cyclone Grant Tropical Low 04U (11:17 pm EST 2011-12-29)". Tropical Cyclone Warning Centre, Darwin. Archived from the original on 29 December 2011. Retrieved 29 December 2011.
^"TROPICAL CYCLONE FORECAST TRACK MAP Ex-Tropical Cyclone Grant Tropical Low 04U (4:33 am EST 2011-12-30)". Tropical Cyclone Warning Centre, Darwin. Archived from the original on 29 December 2011. Retrieved 29 December 2011.
^. Tropical Cyclone Warning Centre, Darwin. Archived from the original on 21 June 2022. Retrieved 29 December 2011.
^White, Tarina (30 December 2011). . The Cairns Post. Archived from the original on 3 February 2016. Retrieved 30 December 2011.
External linksedit
Joint Typhoon Warning Centre (JTWC) 2010-03-01 at the Wayback Machine.
Australian Bureau of Meteorology (TCWC's Perth, Darwin & Brisbane) 2009-11-12 at the Wayback Machine.
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April 11, 2024
cyclone, grant, tropical, tropical, cyclone, that, affected, queensland, northern, territory, late, december, 2011, early, january, 2012, category, tropical, cyclone, scale, tropical, storm, sshws, near, peak, intensity, decemberformed21, december, 2011dissipa. Tropical Cyclone Grant was a tropical cyclone that affected Queensland and the Northern Territory in late December 2011 and early January 2012 Cyclone GrantCategory 2 tropical cyclone Aus scale Tropical storm SSHWS Cyclone Grant near its peak intensity on 25 DecemberFormed21 December 2011Dissipated2 January 2012Highest winds10 minute sustained 100 km h 65 mph 1 minute sustained 110 km h 70 mph Lowest pressure978 hPa mbar 28 88 inHgAreas affectedNorthern Territory QueenslandPart of the 2011 12 Australian region cyclone season Contents 1 Meteorological history 2 Preparations and impact 2 1 Northern Territory 2 2 Queensland 3 References 4 External linksMeteorological history edit nbsp Map plotting the storm s track and intensity according to the Saffir Simpson scaleMap keySaffir Simpson scale Tropical depression 38 mph 62 km h Tropical storm 39 73 mph 63 118 km h Category 1 74 95 mph 119 153 km h Category 2 96 110 mph 154 177 km h Category 3 111 129 mph 178 208 km h Category 4 130 156 mph 209 251 km h Category 5 157 mph 252 km h Unknown Storm type nbsp Tropical cyclone nbsp Subtropical cyclone nbsp Extratropical cyclone remnant low tropical disturbance or monsoon depressionOn 21 December the United States Joint Typhoon Warning Center and the Tropical Cyclone Warning Centre in Darwin Australia began monitoring an area of low pressure that had developed about 9 462 km 5 879 mi to the northeast of Darwin 1 2 Tropical Low 04U developed into a Category 1 tropical cyclone on the morning of 25 December and moved slowly towards the Cobourg Peninsula 3 The system reached Category 2 strength in the afternoon of 25 December 4 In the evening of 28 December the system downgraded to a tropical low moved back onto the waters of the Gulf of Carpentaria 5 The system continued to move eastward across the Cape York Peninsula and into the Coral Sea even as the storm weakened until Grant underwent an extratropical transition on 2 January 2012 Later on the same day the extratropical remnant of Grant dissipated Preparations and impact editNorthern Territory edit A gale warning was issued for Darwin and the Tiwi Islands on 24 December 6 The system intensified on 25 December reaching Category 2 status in the afternoon 7 and a cyclone watch was declared between Dundee Beach and Nhulunbuy with a cyclone warning issued for areas between Cape Fourcroy and Milingimbi including the Tiwi Islands 8 The system crossed Van Diemen Gulf and made a second landfall east of Point Stuart in the early morning of 26 December Shortly thereafter the cyclone was downgraded to Category 1 9 and by that afternoon it was downgraded to a tropical low as it passed Jabiru in Kakadu National Park 10 Jabiru Airport had received 71 0 mm 2 80 in of rain by 9 00am on 26 December 11 12 On 27 December the system was moving slowly south east across Arnhem Land 13 causing heavy rainfall Ediths Fall Ridge recorded 385 0 mm 15 16 in of rainfall which produced damaging flooding 14 A cyclone watch was issued on 27 December from Nhulunbuy to Numbalwar including Groote Eylandt 15 Flooding associated with the system in the Katherine area cut off the Stuart Highway washed cars off bridges and derailed a train 15 The Adelaide Darwin railway was severely damaged by the derailment of the Genesee amp Wyoming freight train The Ghan was forced to stop with 200 passengers in Katherine 16 One week after the cyclone had passed freight companies were poised to raise transportation costs as shipping to Darwin would need to be done by road 17 The railway between Katherine and Darwin would be out of service until the end of January 2012 18 On 28 December the system moved eastward bringing with it heavy rainfall to the Roper McArthur River districts 19 Queensland edit A cyclone watch was issued for Queensland for coastal areas from Thursday Island to Gilbert River Mouth 19 but was later cancelled when the system did not re intensify to Category 1 strength Late on 29 December the system as a tropical monsoon low was northwest of Pormpuraaw on the Cape York Peninsula 20 before making landfall in the early morning of 30 December south of Wiepa 21 near the aboriginal community of Aurukun 22 A severe weather warning was issued for the Peninsula North Tropical Coast and Gulf Country districts 23 Later on 30 December the monsoon low passed Coen and out into the waters of the Coral Sea References edit Unattributed 2011 12 21 Significant tropical weather advisory for the Western and South Pacific ocean 2011 12 21 06z Joint Typhoon Warning Center United States Navy Archived from the original on December 21 2011 Retrieved 2011 12 28 Unattributed 2011 12 21 Tropical Cyclone Technical Bulletin Australia Northern Region 2011 12 21 06z Darwin Tropical Cyclone Warning Centre Bureau of Meteorology Archived from the original on December 21 2011 Retrieved 2011 12 28 TC Track BOM 25 December 2011 Archived from the original on 7 January 2012 Retrieved 25 December 2011 Cyclone moves on after whipping remote island Archived from the original on 2014 01 02 Retrieved 2011 12 29 TROPICAL CYCLONE ADVICE NUMBER 39 04U Tropical Cyclone Warning Centre Darwin Archived from the original on 6 September 2011 Retrieved 28 December 2011 Partenza Nathan 24 December 2011 Darwin braces itself on Tracy anniversary as threat of holiday cyclone increases The Age Retrieved 24 December 2011 Peddie Clair 25 December 2011 Top End bunkers down for cyclone The Advertiser Retrieved 25 December 2011 Nervous wait as NT cyclone picks its path Archived from the original on 2014 01 02 Retrieved 2011 12 29 Cyclone updates Boxing Day NT News 26 December 2011 Archived from the original on 15 March 2012 Retrieved 26 December 2011 Bevege Allison 26 December 2011 Cyclone Grant is officially dead NT News Retrieved 26 December 2011 permanent dead link Latest Weather Observations for Jabiru Issued at 3 05 pm CST Monday 26 December 2011 BOM 26 December 2011 Retrieved 26 December 2011 26 09 00am 71 0mm Wood David 27 December 2011 More rain at the MCG NT News Retrieved 27 December 2011 permanent dead link Betts Alyssa 27 December 2011 Storm likely to get its puff back NT News Retrieved 27 December 2011 permanent dead link Cyclone Grant likely to reform over Gulf ABC 27 December 2011 Retrieved 27 December 2011 a b Flood chaos rolling updates here NT News 27 December 2011 Archived from the original on 19 January 2012 Retrieved 27 December 2011 Conlon Thomas Betts Alyssa 27 December 2011 Northern Territory cyclone floods derail train cut nation in two The Advertiser Retrieved 27 December 2011 Betts Alyssa 4 January 2012 Freight costs to soar after train crash NT News Retrieved 4 January 2012 Booth Meredith 4 January 2011 Railway repairs expected late January The Advertiser Archived from the original on 14 January 2012 Retrieved 13 January 2011 a b Grant heads east to become a cyclone again NT News 28 December 2011 Retrieved 28 December 2011 permanent dead link TROPICAL CYCLONE FORECAST TRACK MAP Ex Tropical Cyclone Grant Tropical Low 04U 11 17 pm EST 2011 12 29 Tropical Cyclone Warning Centre Darwin Archived from the original on 29 December 2011 Retrieved 29 December 2011 TROPICAL CYCLONE FORECAST TRACK MAP Ex Tropical Cyclone Grant Tropical Low 04U 4 33 am EST 2011 12 30 Tropical Cyclone Warning Centre Darwin Archived from the original on 29 December 2011 Retrieved 29 December 2011 TROPICAL CYCLONE FORECAST TRACK MAP Ex Tropical Cyclone Grant Tropical Low 04U 8 25 am EST 2011 12 30 Tropical Cyclone Warning Centre Darwin Archived from the original on 21 June 2022 Retrieved 29 December 2011 White Tarina 30 December 2011 Severe weather warning current for Cape York communities The Cairns Post Archived from the original on 3 February 2016 Retrieved 30 December 2011 External links editJoint Typhoon Warning Centre JTWC Archived 2010 03 01 at the Wayback Machine Australian Bureau of Meteorology TCWC s Perth Darwin amp Brisbane Archived 2009 11 12 at the Wayback Machine Tropical Cyclone Warning Centre Jakarta Retrieved from https en wikipedia org w index php title Cyclone Grant amp oldid 1209482760, wikipedia, wiki, book, books, library,
