Knowledge (XXG)

Cyclone Heidi

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tropical cyclone at 1200 UTC on January 11, and six hours later attained its peak intensity with ten-minute sustained winds of 150 km/h (95 mph) and an estimated minimum central pressure of 960 mbar (hPa). At the same time, the JTWC estimated Heidi to have one-minute sustained winds of 120 km/h (75 mph). Heidi made landfall about 15 km (10 mi) east of Port Hedland a couple of hours later at peak intensity. At landfall, gale-force winds extended only 55 km (35 mi) outwards from the centre of the tropical cyclone. Heidi rapidly weakened over land: the cyclone fell to Category 2 strength within ten hours of landfall, and the system weakened to Category 1 strength in another six hours. Heidi weakened into a tropical low by 1800 UTC on January 12, which was last noted by TCWC Perth as well as the JTWC 12 hours later.
835: 519: 38: 2734: 1968: 1104: 365: 2746: 1978: 296: 488:, more than 3,500 homes and businesses in Port Hedland lost power due to Heidi. Though the threat of the storm surge did not eventuate as the storm slowed before landfall and as landfall occurred more than four hours after the high tide, heavy rainfall of over 100 mm (3.9 in) led to flooding in the region. 168.5 mm (6.63 in) of rainfall was reported in 24 hours at 375: 2758: 385: 426:
Owing to the highly favourable environment and its small size, Heidi rapidly intensified after genesis. The system continued to track southwards while decelerating and contracting in size, and intensified to Category 2 strength six hours after being named. Heidi intensified into a Category 3 severe
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was cleared and shut formally by 2 a.m. on 11 January. Non-essential port and construction workers were moved out and iron mines in the Pilbara coast were shut in preparation for Heidi. Oil rigs offshore and along the Pilbara coast halted their activities in the lead-up to Heidi. The
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and attained Category 3 severe tropical cyclone status on 11 January. After making landfall at peak intensity later that day with estimated winds of 150 km/h (95 mph), Heidi rapidly weakened, dissipating over Western Australia by 13 January.
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The small, destructive core of Heidi missed Port Hedland to the east. Nonetheless, very strong winds and heavy rainfall caused minor flooding and power outages, and trees were uprooted across properties. According to
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cancelled two afternoon return services. The 300 affected passengers were provided with one night's accommodation by the carrier. A red alert was issued by the BoM for the coast between
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was retired by the Bureau of Meteorology from the rotating list of names used for tropical cyclones in the Australian region following the season. It is replaced with
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of 28 to 31 Β°C till the Pilbara coast, the low tracked southwards quickly and intensified into a Category 1 tropical cyclone at 1200 UTC on 10 January. The
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recorded 108.4 mm (4.27 in) of rain. Overall, damage due to Heidi was relatively minor, and no casualties were reported.
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that could inundate low-lying areas. About 45 people took shelter in a relocation centre in South Hedland overnight.
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regions in Western Australia, with a maximum accumulation of 168.5 millimetres (6.63 in) being reported at
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in January 2012. The seventh tropical low, third tropical cyclone, and second severe tropical cyclone of the
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on 9 January 2012. Located in an environment favourable for development, characterised by low northerly
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In advance of the approach of Heidi, the BoM issued a cyclone warning for the coast from
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Map plotting the storm's track and intensity, according to the Saffir–Simpson scale
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The origins of Heidi can be traced to a tropical low that was first noted by
787: 535:(2007) – the last tropical cyclone to impact the Pilbara coast before Heidi. 423:
extending 120 km (75 mi) outward from the centre of the cyclone.
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was later retired from the rotating list of storm names assigned by the
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Tropical storm (39–73 mph, 63–118 km/h)
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Tropical depression (≀38 mph, β‰€62 km/h)
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Category 4 (130–156 mph, 209–251 km/h)
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Category 3 (111–129 mph, 178–208 km/h)
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Category 2 (96–110 mph, 154–177 km/h)
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Category 1 (74–95 mph, 119–153 km/h)
541:(2013) – impacted the Pilbara coast the following year. 1150:
Category 3 Australian region severe tropical cyclones
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Category 5 (β‰₯157 mph, β‰₯252 km/h)
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Heidi dropped heavy rainfall across the 2024:Retired Australian region tropical cyclone names 676:"Port Hedland braces for Cyclone Heidi - 9News" 728:"Clean-up begins in the wake of Cyclone Heidi" 2008: 1134: 808: 8: 30: 2015: 2001: 1993: 1141: 1127: 1119: 815: 801: 793: 36: 29: 403:about 290 km (180 mi) south of 2784:2011–12 Australian region cyclone season 825:2011–12 Australian region cyclone season 237:2011–12 Australian region cyclone season 216:2011–12 Australian region cyclone season 700:"Port Hedland braces for Cyclone Heidi" 647:"Cyclone Heidi shuts down mines, ports" 551: 2794:Tropical cyclones in Western Australia 130:Category 1-equivalent tropical cyclone 2789:Category 3 Australian region cyclones 1016: 1011: 608:"Annual Tropical Cyclone Report 2012" 7: 722: 720: 606:Evans, Ashley J.; Falvey, Robert J. 601: 599: 597: 565: 563: 561: 559: 557: 555: 2757: 980: 975: 759:Australian Broadcasting Corporation 570:Baillard, Nadine (September 2016). 251:In advance of Heidi's arrival, the 243:in a favourable environment, Heidi 2804:Retired Australian region cyclones 848: 843: 454:Port Hedland International Airport 257:Port Hedland International Airport 72:Category 3 severe tropical cyclone 25: 920: 915: 884: 879: 2756: 2744: 2733: 2732: 1976: 1967: 1966: 1103: 1102: 968: 963: 833: 788:Australian Bureau of Meteorology 590:from the original on 2019-01-07. 580:Australian Bureau of Meteorology 517: 383: 373: 363: 1028: 1023: 766:from the original on 2012-01-21 657:from the original on 2018-09-14 626:from the original on 2020-09-26 572:"Severe Tropical Cyclone Heidi" 413:sea surface temperatures (SSTs) 860: 855: 1: 1088: 1083: 1076: 1071: 1064: 1059: 1052: 1047: 1040: 1035: 1004: 999: 992: 987: 956: 951: 944: 939: 932: 927: 908: 903: 896: 891: 872: 867: 225:Severe Tropical Cyclone Heidi 31:Severe Tropical Cyclone Heidi 616:Joint Typhoon Warning Center 417:Joint Typhoon Warning Center 102:205 km/h (125 mph) 155:120 km/h (75 mph) 93:150 km/h (90 mph) 2825: 2809:2010s in 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1174:Emily (1972) 1169:Daisy (1972) 921: 768:. 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The 441:Mardie 351:  346:  341:  336:  331:  326:  321:  316:  194:Damage 55:Formed 2677:2020s 2643:Quang 2638:Olwyn 2613:Rusty 2593:Heidi 2583:Tasha 2578:Magda 2571:2010s 2552:Helen 2527:Larry 2522:Clare 2502:Monty 2497:Inigo 2492:Erica 2487:Chris 2467:Tessi 2462:Steve 2455:2000s 2441:Vance 2376:Ethel 2366:Barry 2356:Agnes 2341:Bobby 2321:Pearl 2316:Naomi 2311:Roger 2306:Polly 2264:1990s 2250:Pedro 2245:Orson 2225:Ilona 2210:Elsie 2205:Jason 2190:Nigel 2180:Sandy 2175:Lance 2170:Kathy 2155:Cliff 2150:Simon 2143:1980s 2134:Kerry 2104:Tracy 2099:Wanda 2094:Madge 2089:Emily 2084:Daisy 2057:1970s 2048:Dinah 2043:Flora 2031:1960s 1917:2020s 1806:2010s 1690:2000s 1544:1990s 1348:1980s 1157:1970s 922:Heidi 886:Grant 624:(PDF) 611:(PDF) 588:(PDF) 575:(PDF) 501:Heidi 281:Heidi 197:Minor 141:SSHWS 2719:Ilsa 2704:Seth 2547:Guba 2446:John 2436:Rona 2296:Nina 2286:Mark 2276:Ivor 2271:Tina 2240:Aivu 2129:Alby 2119:Beth 2114:Joan 2069:Dora 970:Iggy 862:Fina 632:2021 464:and 275:and 263:and 189:None 174:inHg 170:mbar 164:974 145:JTWC 122:inHg 118:mbar 112:960 2668:Ann 2628:Lam 2623:Ita 2603:Lua 2507:Fay 2477:Sam 2416:Sid 2291:Ian 2281:Joy 2235:Ned 2124:Ted 2064:Ada 1090:21U 1078:20U 1066:19U 1054:18U 1042:17U 1030:Lua 1006:14U 994:13U 958:10U 946:09U 934:08U 910:06U 898:05U 874:03U 439:to 166:hPa 114:hPa 83:BOM 2780:: 1085:TL 1073:TL 1061:TL 1049:TL 1037:TL 1001:TL 989:TL 953:TL 941:TL 929:TL 905:TL 893:TL 869:TL 857:TL 762:. 756:. 730:. 719:^ 702:. 678:. 653:. 649:. 619:. 613:. 596:^ 583:. 577:. 554:^ 507:. 287:. 2016:e 2009:t 2002:v 1142:e 1135:t 1128:v 1025:3 1013:2 977:2 965:2 917:3 881:2 845:3 816:e 809:t 802:v 773:. 741:. 713:. 688:. 664:. 634:. 168:( 147:) 143:/ 139:( 116:( 85:) 81:( 20:)

Index

Cyclone Heidi (2012)
Heidi 11 Jan 2012, near Port Hedland
BOM
hPa
mbar
inHg
SSHWS
JTWC
hPa
mbar
inHg
Western Australia
2011–12 Australian region cyclone season
tropical cyclone
Western Australia
2011–12 Australian region cyclone season
Pilbara coast
rapidly intensified
Port of Port Hedland
Port Hedland International Airport
Pilbara
West Kimberley
Pardoo Station
South Hedland
Wedgefield
Bureau of Meteorology

Saffir–Simpson scale
Tropical cyclone
Subtropical cyclone

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