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Cyclone Althea

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882:, bolstered the trend of more rigorous construction specifications in the country. Many of the buildings destroyed by Tracy were government housing units constructed according to new guidelines based on findings after Althea, showing the need for further study. The severe cyclones prompted Queensland to develop its first statewide building regulations in 1975; the new Queensland Home Building Code was fully adopted in the mid-1980s. Under the new regulations, roofs had to be more securely anchored than before using bolts and reinforced fastenings. Having seen the dangers of deficient construction first-hand, Townsville was the first community to enact the enhanced building standards, and served as a testing ground for further revisions. The 29: 613: 776: 902: 289: 166: 464: 575:$ 120 million (1971), and the normalised damage total for 2012, which accounts for growth and inflation, was estimated at $ 648 million. Throughout the affected region, 257 people were treated for storm-related injuries, mostly inflicted by airborne debris; three people were killed. In Townsville, ten people were reported missing during the cyclone: nine on three boats that were unaccounted for, and one whose car was found in a swollen creek. They were all found safe. 916: 4162: 3273: 358: 4172: 3285: 707:, wind-blown sand debarked trees and buffeted paint from houses. Althea generally dropped 145 to 200 mm (5.7 to 7.9 in) of rain in the Townsville area, much of it falling after the cyclone moved inland. As so many roofs had been damaged, many home interiors were left exposed to the elements. As a result, the deluge caused significant water damage to interior walls, electrical wiring, and personal belongings. Storage facilities at 604:, one woman died in a building collapse, and reportedly only 8 out of 150 houses in the community survived the cyclone. The island suffered a nearly total power outage, and after the water pipeline from the mainland was damaged, strict usage rations were put in place until repairs could be made. About 30 people on Magnetic Island were treated for injuries sustained during the storm, and damage reached $ 2 million. 368: 3297: 271:, requiring new homes to be cyclone-resistant. Townsville was the first community to adopt the enhanced construction standards. In addition to the coastal effects, Althea triggered extensive river flooding in interior Queensland. Most major roads in western portions of the state were cut off by floodwaters, and hundreds of families had to leave their homes for higher ground. In the aftermath of the cyclone, 600 796:
for pensioners; for the latter, higher allocations to cover the full cost of rebuilding homes were soon considered. The Townsville City Council received a special $ 25,000 grant with the goal of repairing schools for the start of the new academic year. By 27 December, $ 150,000 in private donations had arrived as organisations and radio stations throughout Queensland sought assistance for the disaster area.
378: 559:. However, storm victims still criticised the agency and local radio news stations for unclear, untimely, or conflicting broadcasts that caused widespread confusion. Significant delays between the issuance of warnings from TCWC Brisbane and local broadcast in the Townsville area raised some question about the need for a warning centre closer to 518:– rings of intense thunderstorms surrounding the centre. The strongest winds were found under the contracting outer ring, which shrank from 55 to 39 km (34 to 24 mi) between 21:00 and 23:00 UTC to become the dominant eyewall as the inner ring dissipated. Consequently, extreme winds initially extended relatively far from the centre. 711:
were seriously damaged by the combined wind and rain, and four helicopters at the base were destroyed. In the weeks following the cyclone's passage, further downpours plagued Townsville and triggered flooding when storm drains clogged with debris were unable to handle the runoff. Severe flooding from
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soon traveled to Townsville to assess the damage and authorise the distribution of emergency grants for affected residents. At the end of December, officials announced that the state and federal governments would jointly issue individual rebuilding grants, ranging from $ 1,000 to as high as $ 4,000
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experienced a 2.7 m (9 ft) water level rise that submerged streets in the city. Shipping interests in the river suffered extensively when a barge broke free of its moorings and collided with numerous smaller vessels. An estimated peak storm surge of 3.66 m (12.0 ft) occurred at
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walls. In some cases, entire roofs crashed down on vehicles and other property. Power outages were extensive. One post-storm survey of 6,000 houses in Townsville found around 0.7% totally demolished, 1.7% with critical but repairable damage, and 13.3% with minor damage. Other estimates placed the
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were inundated. In addition to damaging highways, the cyclone disrupted rail and air transportation. Railroads traveling out of Townsville were submerged under as much as 1.5 m (5 ft) of water, while several airfields were forced to close. Later, as the storm approached open water once
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At the time, Althea was one of the strongest tropical cyclones to strike the coast of Queensland; it still stands as the most intense ever in the Townsville area. Gusts as high as 196 km/h (122 mph) and sustained winds of 139 km/h (86 mph) were recorded at Townsville Airport,
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over western and southern Queensland. Numerous communities were isolated by rising floodwaters, and hundreds of families were forced to evacuate their homes. In some cases, residents had to be moved to higher ground by boat, along with any food and provisions they were able to salvage. The
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spent 10 days on Magnetic Island assisting in cleanup and recovery. Emergency vehicles, specialised personnel, electric generators, refrigerators, food rations, and other critical supplies were ferried to the island, and medical officers rushed there to limit the spread of
703:, the storm surge swept vehicles off roads and inundated homes; around 40% of dwellings were rendered uninhabitable. Trees and power lines in the community were mangled, nearly every building was unroofed, and damage amounted to approximately $ 1 million. In 646:
dwellings in Townsville. Overall, Althea wrought at least $ 6 million in damage to government-owned buildings. The cyclone killed two people in Townsville: one man was crushed when his home collapsed, and another suffered a stress-related heart attack.
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In the hours leading up to landfall, the TCWC in Brisbane issued 17 cyclone warnings for coastal areas. According to the BoM, residents received 20 hours of advance warning in which to complete preparations. By late on 23 December, police and
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was hit particularly hard. About 100 people endured the cyclone in the dining room of a Picnic Bay hotel that ultimately sustained severe structural damage; 65 would remain sheltered there through Christmas Day. Around 60% of houses in
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Farther inland, up to 250 mm (9.8 in) of rain fell in 12 hours, the most substantial rainfall in 15 years. In some drought-stricken parts of the state, the rain proved beneficial to farmers, but there was also widespread
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on 26 December and began to intensify once again. At 00:00 UTC on 28 December, the cyclone reached a third peak with 10-minute winds of 110 km/h (70 mph), but as it turned more toward the south, increasingly cooler
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soldiers aided recovery efforts in Townsville and Magnetic Island, while both state and federal governments contributed disaster relief funds. Three people were killed and damage totaled $ 120 million (1971
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near the cyclone's landfall point. Storm surge values tapered off sharply to the north of the storm centre, but remained high well to the south, with above-normal water levels extending as far south as
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reported that about 200 houses had been leveled – about 1 in every 100 – with 600 more rendered uninhabitable, and as many as 4,000 damaged. Among the structures damaged or destroyed were 200
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workers were on alert for the approaching storm. High public preparedness and a relatively low loss of life were attributed to BoM cyclone awareness initiatives in the wake of 1970's deadly
3327: 767:, causing damage to buildings and vegetation. Damaging thunderstorms in the suburbs of Sydney, on 25 December were broadly attributed to the weather pattern associated with Althea. 874:
and fastening systems were among the primary points of failure. Consequently, much stricter building codes were explored in Queensland and Australia as a whole. Three years later,
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was declared for the Townsville area, making an initial $ 7,000 in emergency aid available for distribution among 84 individuals left homeless. Immediately after the storm, the
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in Townsville for relief efforts around the area. The troops were then split into 30 crews and assigned to different parts of the disaster area. In response to a request by
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Many of the damaged houses were of poor construction, and in the wake of Althea, engineering studies of the destruction resulted in a new understanding of the structural
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after several cases were reported. To recognise the efforts of the Australian Army in the aftermath of Althea, a commemorative plaque was later erected in Townsville's
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While moving ashore, Althea generated wind gusts as high as 215 km/h (134 mph) that wrought significant destruction around Townsville and left nearby
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were damaged to some degree by 215 km/h (134 mph) wind gusts, and there was "not a tree left with leaves on it". The island's main town of
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of islands, substantial erosion resulted from southwesterly winds. Beaches receded by as much as 15.8 m (52 ft) between Pallarenda and
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began collecting and distributing donated clothing, while providing hot meals to hundreds of destitute storm victims. Australian Prime Minister
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winds extended well to the south of the cyclone's centre. While the system was moving ashore, land-based radar imagery identified an ongoing
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and high waves caused widespread damage along the coast. Storm surge values reached 2.9 m (9.5 ft) in Townsville Harbour; the
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in a state of ruin; almost all of the buildings on the island were damaged to some degree. A significant 3.66 m (12.0 ft)
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had airlifted 225,000 kg (500,000 lb) of emergency supplies into the Townsville area. Isolated instances of
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Walker, George R. (September 2010). "A review of the impact of Cyclone Tracy on building regulations and insurance".
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to the south, and steadily strengthened. Near 18:00 UTC on 22 December, it reached its peak intensity with 10-minute
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Leitch, C.; et al. (January 2011). "Performance of housing in Brisbane following storms on 16 November 2008".
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from the heavy rains traveled downstream, southern areas continued to experience flooding into early January. Two
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in mid-December 1971. Although little is known about the storm's genesis because of sparse reports and infrequent
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again, it dropped over 200 mm (7.9 in) of precipitation along the southern coast of Queensland. As
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in the cyclone's powerful left-front quadrant. Because of the tight pressure gradient between Althea and the
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Hopley, David (1974). "Coastal changes produced by Tropical Cyclone Althea in Queensland; December 1971".
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to protect their damaged homes and building materials to begin repairs. By early January, the
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were reported after the disaster, and multiple local merchants were investigated for alleged
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reimbursed Queensland for an estimated $ 5.5–6 million spent by the state on recovery.
452:) was estimated using the lowest recorded air pressure, 971.5 hPa (28.69 inHg) at 3181: 3090: 2914: 2904: 2894: 2854: 2788: 2748: 2743: 2718: 2713: 2693: 2688: 2637: 2632: 2627: 2622: 2612: 2581: 1849: 1416:
Discovering Magnetic Island: A history and description of Magnetic Island, North Queensland
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Fielding, Trisha (19 December 2015). "The cyclone that tore up the city on December 24".
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of 130 km/h (80 mph); this made it a Category 3 severe tropical cyclone on the
433: 371: 2400: 1853: 1170: 890:'s Townsville campus, was established in 1977 in response to cyclones Althea and Tracy. 612: 538:
weakened the cyclone. On 29 December, Althea lost its tropical characteristics over the
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soldiers, including 130 engineers, were recalled from Christmas leave and stationed at
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from the Australian tropical cyclone naming list due to the cyclone's severe impact.
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A house in Townsville lifted off its foundation and dropped on a vehicle by the winds
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Map plotting the storm's track and intensity, according to the Saffir–Simpson scale
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Although the worst of the storm struck near low tide, the combination of a large
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share of damaged or destroyed houses at 60%. Several months after the storm, the
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Cyclone Althea originated in an expanding area of thunderstorm activity near the
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and coastal roadways were crushed by the pounding surf in places such as the
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area, Althea was the fourth system and second severe tropical cyclone of the
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The storm quickly weakened as it continued southwest, passing just north of
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provided only occasional glimpses into the cyclone's formative stages, its
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just before Christmas 1971. One of the strongest storms ever to affect the
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Frazer, Ian (24 December 2011). "History time traveller: Cyclone Althea".
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Late on 22 December, the eye remained obscured to satellite imagery by a
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Andersen, John (24 December 2011). "Cyclone Althea: December 24, 1971".
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from Townsville to Toolakea, while north of the storm's center, in the
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necessary to withstand severe winds. In particular, inadequate roof
288: 228:, about 50 km (30 mi) north of Townsville. Although early 2322: 1593:(Report). Queensland Department of Community Safety. Archived from 1392: 1202: 413: 848: 760: 664: 421: 420:
on 20 December, less than 300 km (200 mi) southwest of
260: 663:. In addition to the surge, wave action was highly destructive. 2280: 425: 1273:. Australian Disaster Resilience Knowledge Hub. Archived from 212:, the storm reached its peak intensity with 10-minute average 2526: 2207: 2173: 2065: 1723: 1682: 1563: 1522: 1236: 224:
on Christmas Eve, Althea struck the coast of Queensland near
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images, the disturbance is thought to have organised into a
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on 19 December as it tracked slowly southwestward into 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)
263:. Beaches receded by up to 15.8 m (52 ft) due to 1770: 1075:
International Best Track Archive for Climate Stewardship.
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embedded within the cyclone's outer bands touched down in
416:, the system reached tropical cyclone status around 06:00 384:, remnant low, tropical disturbance, or monsoon depression 336:
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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Total damage from Cyclone Althea amounted to just under
444:. The cyclone's central barometric pressure of 952  321:
Category 1 (74–95 mph, 119–153 km/h)
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Centre for Research on the Epidemiology of Disasters.
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satellite showed the first indications of an emerging
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Category 3 Australian region severe tropical cyclones
996:"Report by Director of Meteorology on Cyclone Althea" 993: 486:, which occurred at 23:00 UTC on 23 December – 09:00 2281:
RA V Tropical Cyclone Committee (12 December 2012).
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Radar image of Althea just before landfall, showing
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Category 5 (β‰₯157 mph, β‰₯252 km/h)
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1971–72 Southern Hemisphere tropical cyclone season
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Australian Meteorological and Oceanographic Journal
412:'s (BoM) Tropical Cyclone Warning Centre (TCWC) in 216:of 130 km/h (80 mph) – Category 3 on the 1254: 498:. The landfall point placed Townsville and nearby 2361: 4188: 2563:Retired Australian region tropical cyclone names 1618: 1412: 1196: 208:on 19 December and heading southwest across the 2043: 1771:United Press International (25 December 1971). 1116: 2433: 2405:The Australian Journal of Emergency Management 2316: 2188:"Cyclone relief committee to distribute funds" 2013:"Storms cause damage in two states and A.C.T." 1585: 3328: 2547: 1839: 1736: 2471:Australian Journal of Structural Engineering 2398: 1663:"200 homes were destroyed by Althea: report" 1382: 1380: 1378: 1376: 1374: 1001:. Australian Government Publishing Service. 675:. The violent onshore flow generated severe 1408: 1406: 1404: 1402: 1386: 1119:"Case Study: Tropical Cyclone Althea, 1971" 1079:. University of North Carolina, Asheville. 800:provided $ 72,000 of relief funding, while 3335: 3321: 2554: 2540: 2468: 2436:"Still an unsafe look in the cyclone belt" 2312: 2310: 2079: 2077: 2075: 1704:"500 War Service homes damaged in cyclone" 1612: 1497: 1495: 1460: 1458: 1456: 1454: 1452: 1154: 164: 27: 2375: 2357: 2355: 2353: 2351: 2118: 2116: 2114: 2007: 2005: 1873: 1871: 1588:State-wide Natural Hazard Risk Assessment 1371: 1339: 1337: 1335: 1333: 1331: 1070: 1068: 1066: 1064: 1037: 1035: 1033: 1031: 1029: 1027: 1025: 1023: 687:, and by up to 12 m (39 ft) at 494:, about 50 km (30 mi) north of 283: 2214: 1952:. Bureau of Meteorology. November 2010. 1399: 1296: 1294: 1292: 1192: 1190: 1188: 1112: 1110: 1108: 1106: 1104: 1102: 1100: 1098: 1043:"Severe Tropical Cyclone Althea Summary" 828:1st Battalion, Royal Australian Regiment 774: 611: 462: 287: 202:1971–72 Australian region cyclone season 177:1971–72 Australian region cyclone season 2517:Footage of Cyclone Althea in Townsville 2307: 2124:"Individual grants for cyclone repairs" 2072: 1833: 1766: 1764: 1762: 1760: 1581: 1579: 1577: 1575: 1573: 1538: 1536: 1534: 1532: 1492: 1449: 1256:"EM-DAT: The Emergency Events Database" 1248: 1246: 1155:Oliver, J. (1973). "Tropical cyclone". 716:delta was exacerbated by rainfall from 4189: 2427: 2348: 2111: 2039: 2037: 2002: 1950:"Queensland flood summary 1970 – 1979" 1910: 1908: 1868: 1698: 1696: 1694: 1692: 1328: 1302:"Cyclone town starts the big clean-up" 1061: 1020: 989: 987: 985: 983: 981: 979: 723: 36:image of Cyclone Althea on 23 December 4217:Category 3 Australian region cyclones 3316: 2535: 2415:from the original on 19 February 2017 1942: 1503:"Inquiry into cyclone 'profiteering'" 1289: 1185: 1117:Callaghan, Jeff (22 September 2011). 1095: 977: 975: 973: 971: 969: 967: 965: 963: 961: 959: 607: 583:An estimated 90% of the buildings on 2345:. Walker, George R. 17 October 1991. 1757: 1737:Hopley, David (1974). "April 1974". 1570: 1529: 1243: 1150: 1148: 1146: 236:was monitored closely by land-based 3296: 2034: 1905: 1689: 1259:. UniversitΓ© catholique de Louvain. 1131:from the original on 22 August 2016 994:Bureau of Meteorology (July 1972). 855:. After the season ended, the name 600:were demolished. In the village of 460:, and environmental air pressures. 13: 4212:Retired Australian region cyclones 2495:from the original on 13 April 2017 2446:from the original on 12 March 2017 2434:Percival, Jack (19 January 1975). 2258:from the original on 12 March 2017 2228:from the original on 12 March 2017 2198:from the original on 12 March 2017 2164:from the original on 12 March 2017 2134:from the original on 12 March 2017 2095:from the original on 12 March 2017 2056:from the original on 12 March 2017 2046:"Army helps when disaster strikes" 2022:from the original on 12 March 2017 1956:from the original on 6 August 2017 1783:from the original on 12 March 2017 1751:10.1111/j.1467-8470.1974.tb00304.x 1714:from the original on 12 March 2017 1673:from the original on 12 March 2017 1639:from the original on 12 March 2017 1476:from the original on 12 March 2017 1312:from the original on 12 March 2017 1227:from the original on 20 April 2017 1049:from the original on 31 March 2017 1008:from the original on 20 March 2012 956: 578: 478:while the cyclone passed north of 255:battered the mainland, while high 80:Category 4 severe tropical cyclone 16:1971 natural disaster in Australia 14: 4233: 2510: 1986:from the original on 8 March 2017 1926:from the original on 8 March 2017 1889:from the original on 8 March 2017 1817:from the original on 9 March 2017 1554:from the original on 9 March 2017 1513:from the original on 9 March 2017 1433:from the original on 9 March 2017 1355:from the original on 9 March 2017 1271:"Cyclone Althea, Queensland 1971" 1143: 1083:from the original on 9 March 2017 1077:"1972 09P Althea (1971354S11159)" 642:homes and roughly 500 of the 700 625:was somewhat sheltered by upwind 4170: 4161: 4160: 3295: 3283: 3272: 3271: 2295:from the original on 12 May 2013 2044:Hodgkinson, Jan (26 June 1973). 1976:"Cyclonic storms sweep into NSW" 1586:Risk Frontiers (February 2011). 914: 900: 514:, with two distinct, concentric 376: 366: 356: 4197:Tropical cyclones in Queensland 2481: 2462: 2392: 2329: 2274: 2240: 2194:. 29 December 1971. p. 3. 2180: 2160:. 17 February 1972. p. 1. 2146: 2130:. 31 December 1971. p. 6. 2091:. 27 December 1971. p. 1. 2018:. 27 December 1971. p. 1. 1982:. 27 December 1971. p. 3. 1968: 1922:. 28 December 1971. p. 2. 1885:. 28 December 1971. p. 1. 1799: 1739:Australian Geographical Studies 1730: 1655: 1550:. 28 December 1971. p. 1. 1509:. 31 December 1971. p. 3. 1472:. 27 December 1971. p. 3. 1419:. Boolarong Press. p. 85. 1351:. 27 December 1971. p. 1. 1308:. 28 December 1971. p. 3. 1223:. 24 December 1971. p. 3. 616:Damage to a hotel in Townsville 545: 2399:Pearce, Tony (November 2008). 1813:. 6 January 1972. p. 22. 1710:. 12 January 1972. p. 3. 1466:"McMahon flying to Townsville" 1263: 1209: 186:Severe Tropical Cyclone Althea 22:Severe Tropical Cyclone Althea 1: 2254:. 5 January 1972. p. 3. 1879:"Hundreds homeless in floods" 1345:"Search on for 10 in cyclone" 1124:. Green Cross International. 950: 806:Australian federal government 640:Queensland Housing Commission 1807:"New downpour at Townsville" 1669:. 24 April 1972. p. 9. 770: 644:War Service Homes Commission 456:, a 32 km (20 mi) 101:165 km/h (105 mph) 7: 2523:Photographs of storm damage 2248:"Townsville's airlift ends" 1773:"Cyclone batters Australia" 893: 10: 4238: 1391:. p. 322 – via 880:Darwin, Northern Territory 845:Royal Australian Air Force 4156: 4110: 3999: 3883: 3737: 3541: 3350: 3266: 3215: 3109: 2993: 2802: 2681: 2595: 2569: 2491:. James Cook University. 2440:The Sydney Morning Herald 2321:. p. 20 – via 2089:The Sydney Morning Herald 1980:The Sydney Morning Herald 1920:The Sydney Morning Herald 1862:10.1080/00049187408702657 1811:The Sydney Morning Herald 1622:Understanding Catastrophe 1619:Bourriau, Janine (2006). 1413:Porter, James G. (2014). 1201:. p. 26 – via 1179:10.1080/00049187308702635 1045:. Bureau of Meteorology. 804:contributed $ 2,000. The 566: 512:eyewall replacement cycle 242:eyewall replacement cycle 240:that depicted an ongoing 204:. After forming near the 192:that devastated parts of 172: 160: 150: 139: 131: 126: 105: 97: 85: 78: 63: 48: 41: 26: 4176:Tropical cyclones portal 2489:"History of the Station" 2085:"PM flies to Townsville" 908:Tropical cyclones portal 738:washed out parts of the 536:sea surface temperatures 490:on Christmas Eve – near 218:Australian cyclone scale 4222:Disasters in Queensland 884:Cyclone Testing Station 636:Townsville City Council 553:state emergency service 476:canopy of cirrus clouds 438:maximum sustained winds 214:maximum sustained winds 3549:Bert-Christelle (1980) 3533:Wilf-Danitza (1979–80) 2224:. Monument Australia. 1916:"Floods cut Qld towns" 930:1998 Townsville floods 780: 617: 471: 458:radius of maximum wind 389: 284:Meteorological history 43:Meteorological history 3956:Adeline-Juliet (2005) 3870:Damien-Birenda (1999) 3815:Daryl-Agnielle (1995) 3624:Annette-Jaminy (1984) 3614:Vivienne-Fanja (1984) 2341:12 March 2017 at the 1842:Australian Geographer 1158:Australian Geographer 888:James Cook University 821:Premier of Queensland 778: 752:South West Queensland 615: 466: 410:Bureau of Meteorology 382:Extratropical cyclone 291: 3825:Hubert-Coryna (1996) 3468:Robyn-Deborah (1975) 3438:Deidre-Delida (1973) 1777:Tucson Daily Citizen 1544:"Long recovery road" 935:Climate of Australia 523:Charters Towers City 303:Saffir–Simpson scale 259:destroyed roads and 135:2 direct, 1 indirect 106:Lowest pressure 3855:Victor-Cindy (1998) 2386:10.22499/2.6003.008 2319:Townsville Bulletin 1854:1974AuGeo..12..445H 1389:Townsville Bulletin 1171:1973AuGeo..12..257O 837:Anzac Memorial Park 824:Joh Bjelke-Petersen 724:Interior Queensland 531:Double Island Point 469:concentric eyewalls 408:. According to the 372:Subtropical cyclone 87:10-minute sustained 23: 3921:Dianne-Jery (2002) 3790:Pearl-Farah (1994) 2192:The Canberra Times 2158:The Canberra Times 2128:The Canberra Times 2050:The Canberra Times 2016:The Canberra Times 1708:The Canberra Times 1667:The Canberra Times 1548:The Canberra Times 1507:The Canberra Times 1221:The Canberra Times 878:'s devastation in 785:state of emergency 781: 720:in early January. 681:Greater Palm group 618: 608:Coastal Queensland 504:high pressure area 472: 454:Townsville Airport 390: 230:weather satellites 98:Highest winds 21: 4207:1971 in Australia 4184: 4183: 3896:Leon–Eline (2000) 3310: 3309: 2154:"Disaster relief" 922:Queensland portal 817:Lavarack Barracks 798:Western Australia 398:weather satellite 183: 182: 4229: 4174: 4164: 4163: 4138:Gabrielle (2023) 3850:Selwyn (1997–98) 3337: 3330: 3323: 3314: 3313: 3299: 3298: 3287: 3275: 3274: 2556: 2549: 2542: 2533: 2532: 2505: 2504: 2502: 2500: 2485: 2479: 2478: 2466: 2460: 2459: 2453: 2451: 2431: 2425: 2424: 2422: 2420: 2401:"Assessing risk" 2396: 2390: 2389: 2379: 2359: 2346: 2333: 2327: 2326: 2314: 2305: 2304: 2302: 2300: 2294: 2287: 2278: 2272: 2271: 2265: 2263: 2244: 2238: 2237: 2235: 2233: 2222:"Cyclone Althea" 2218: 2212: 2211: 2205: 2203: 2184: 2178: 2177: 2171: 2169: 2150: 2144: 2143: 2141: 2139: 2120: 2109: 2108: 2102: 2100: 2081: 2070: 2069: 2063: 2061: 2041: 2032: 2031: 2029: 2027: 2009: 2000: 1999: 1993: 1991: 1972: 1966: 1965: 1963: 1961: 1946: 1940: 1939: 1933: 1931: 1912: 1903: 1902: 1896: 1894: 1875: 1866: 1865: 1837: 1831: 1830: 1824: 1822: 1803: 1797: 1796: 1790: 1788: 1768: 1755: 1754: 1734: 1728: 1727: 1721: 1719: 1700: 1687: 1686: 1680: 1678: 1659: 1653: 1652: 1646: 1644: 1616: 1610: 1609: 1607: 1605: 1600:on 12 April 2016 1599: 1592: 1583: 1568: 1567: 1561: 1559: 1540: 1527: 1526: 1520: 1518: 1499: 1490: 1489: 1483: 1481: 1462: 1447: 1446: 1440: 1438: 1410: 1397: 1396: 1384: 1369: 1368: 1362: 1360: 1341: 1326: 1325: 1319: 1317: 1298: 1287: 1286: 1284: 1282: 1277:on 14 April 2017 1267: 1261: 1260: 1258: 1250: 1241: 1240: 1234: 1232: 1213: 1207: 1206: 1194: 1183: 1182: 1152: 1141: 1140: 1138: 1136: 1130: 1123: 1114: 1093: 1092: 1090: 1088: 1072: 1059: 1058: 1056: 1054: 1039: 1018: 1017: 1015: 1013: 1007: 1000: 991: 924: 919: 918: 917: 910: 905: 904: 903: 561:North Queensland 442:Australian scale 380: 379: 370: 369: 362:Tropical cyclone 360: 359: 345: 340: 335: 330: 325: 320: 315: 310: 194:North Queensland 190:tropical cyclone 168: 146:120 million 122: 81: 74: 72: 71:29 December 1971 67:29 December 1971 59: 57: 56:19 December 1971 52:19 December 1971 44: 31: 24: 20: 4237: 4236: 4232: 4231: 4230: 4228: 4227: 4226: 4187: 4186: 4185: 4180: 4152: 4106: 4057:Victoria (2013) 3995: 3991:Nicholas (2008) 3879: 3800:Vivienne (1994) 3733: 3729:Felicity (1989) 3709:Frederic (1988) 3679:Winifred (1986) 3674:Nicholas (1985) 3537: 3523:Peter (1978–79) 3418:Marcelle (1973) 3413:"Flores" (1973) 3346: 3341: 3311: 3306: 3262: 3211: 3105: 2989: 2798: 2677: 2591: 2565: 2560: 2513: 2508: 2498: 2496: 2487: 2486: 2482: 2467: 2463: 2449: 2447: 2432: 2428: 2418: 2416: 2397: 2393: 2377:10.1.1.222.8697 2360: 2349: 2343:Wayback Machine 2334: 2330: 2315: 2308: 2298: 2296: 2292: 2285: 2279: 2275: 2261: 2259: 2246: 2245: 2241: 2231: 2229: 2220: 2219: 2215: 2201: 2199: 2186: 2185: 2181: 2167: 2165: 2152: 2151: 2147: 2137: 2135: 2122: 2121: 2112: 2098: 2096: 2083: 2082: 2073: 2059: 2057: 2042: 2035: 2025: 2023: 2011: 2010: 2003: 1989: 1987: 1974: 1973: 1969: 1959: 1957: 1948: 1947: 1943: 1929: 1927: 1914: 1913: 1906: 1892: 1890: 1877: 1876: 1869: 1838: 1834: 1820: 1818: 1805: 1804: 1800: 1786: 1784: 1769: 1758: 1735: 1731: 1717: 1715: 1702: 1701: 1690: 1676: 1674: 1661: 1660: 1656: 1642: 1640: 1633: 1617: 1613: 1603: 1601: 1597: 1590: 1584: 1571: 1557: 1555: 1542: 1541: 1530: 1516: 1514: 1501: 1500: 1493: 1479: 1477: 1464: 1463: 1450: 1436: 1434: 1427: 1411: 1400: 1385: 1372: 1358: 1356: 1343: 1342: 1329: 1315: 1313: 1300: 1299: 1290: 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4114: 4112: 4108: 4107: 4105: 4104: 4099: 4094: 4089: 4084: 4082:Frances (2017) 4079: 4074: 4069: 4064: 4059: 4054: 4049: 4044: 4039: 4034: 4029: 4024: 4019: 4014: 4009: 4003: 4001: 3997: 3996: 3994: 3993: 3988: 3983: 3978: 3973: 3968: 3963: 3958: 3953: 3948: 3943: 3938: 3933: 3928: 3923: 3918: 3916:Claudia (2002) 3913: 3908: 3906:Abigail (2001) 3903: 3898: 3893: 3891:Kirrily (2000) 3887: 3885: 3881: 3880: 3878: 3877: 3872: 3867: 3862: 3857: 3852: 3847: 3842: 3837: 3832: 3830:Celeste (1996) 3827: 3822: 3817: 3812: 3807: 3802: 3797: 3795:Quenton (1994) 3792: 3787: 3782: 3777: 3772: 3770:Nina (1992–93) 3767: 3762: 3757: 3752: 3750:Vincent (1990) 3747: 3741: 3739: 3735: 3734: 3732: 3731: 3726: 3724:Kirrily (1989) 3721: 3716: 3714:Charlie (1988) 3711: 3706: 3701: 3696: 3691: 3686: 3681: 3676: 3671: 3666: 3664:Lindsay (1985) 3661: 3656: 3651: 3646: 3641: 3636: 3631: 3626: 3621: 3616: 3611: 3606: 3601: 3596: 3591: 3586: 3581: 3576: 3574:Abigail (1982) 3571: 3566: 3561: 3556: 3551: 3545: 3543: 3539: 3538: 3536: 3535: 3530: 3525: 3520: 3515: 3510: 3505: 3503:Jack-Io (1977) 3500: 3495: 3490: 3485: 3480: 3475: 3470: 3465: 3460: 3455: 3450: 3445: 3440: 3435: 3430: 3425: 3420: 3415: 3410: 3405: 3400: 3395: 3393:Adeline (1973) 3390: 3385: 3380: 3375: 3370: 3365: 3360: 3354: 3352: 3348: 3347: 3340: 3339: 3332: 3325: 3317: 3308: 3307: 3305: 3304: 3292: 3280: 3267: 3264: 3263: 3261: 3260: 3255: 3250: 3245: 3240: 3235: 3230: 3225: 3219: 3217: 3213: 3212: 3210: 3209: 3204: 3199: 3194: 3189: 3184: 3179: 3174: 3169: 3164: 3159: 3154: 3149: 3144: 3139: 3134: 3129: 3124: 3119: 3113: 3111: 3107: 3106: 3104: 3103: 3098: 3093: 3088: 3083: 3078: 3073: 3068: 3063: 3058: 3053: 3048: 3043: 3038: 3033: 3028: 3023: 3018: 3013: 3008: 3003: 2997: 2995: 2991: 2990: 2988: 2987: 2982: 2977: 2972: 2967: 2962: 2957: 2952: 2947: 2942: 2937: 2932: 2927: 2922: 2917: 2912: 2907: 2902: 2897: 2892: 2887: 2882: 2877: 2872: 2867: 2862: 2857: 2852: 2847: 2842: 2837: 2832: 2827: 2822: 2817: 2812: 2806: 2804: 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1199:Townsville Eye 1184: 1165:(3): 257–263. 1142: 1094: 1060: 1019: 954: 952: 949: 948: 947: 942: 937: 932: 926: 925: 911: 895: 892: 789:Salvation Army 772: 769: 746:highways near 731:flash flooding 725: 722: 714:Burdekin River 712:Althea in the 705:Saunders Beach 609: 606: 580: 577: 568: 565: 547: 544: 506:to the south, 375: 365: 355: 350: 349: 307: 300: 299: 298: 295: 294: 285: 282: 269:building codes 181: 180: 170: 169: 158: 157: 152: 151:Areas affected 148: 147: 141: 137: 136: 133: 129: 128: 124: 123: 118:); 28.11  107: 103: 102: 99: 95: 94: 83: 82: 76: 75: 65: 61: 60: 50: 46: 45: 39: 38: 32: 15: 9: 6: 4: 3: 2: 4234: 4223: 4220: 4218: 4215: 4213: 4210: 4208: 4205: 4203: 4200: 4198: 4195: 4194: 4192: 4177: 4173: 4169: 4167: 4159: 4158: 4155: 4149: 4146: 4144: 4141: 4139: 4136: 4134: 4133:Seroja (2021) 4131: 4129: 4128:Marian (2021) 4126: 4124: 4123:Damien (2020) 4121: 4119: 4116: 4115: 4113: 4109: 4103: 4100: 4098: 4095: 4093: 4090: 4088: 4087:Kelvin (2018) 4085: 4083: 4080: 4078: 4075: 4073: 4070: 4068: 4065: 4063: 4060: 4058: 4055: 4053: 4052:Sandra (2013) 4050: 4048: 4045: 4043: 4040: 4038: 4035: 4033: 4030: 4028: 4027:Alenga (2011) 4025: 4023: 4022:Carlos (2011) 4020: 4018: 4017:Dianne (2011) 4015: 4013: 4010: 4008: 4005: 4004: 4002: 3998: 3992: 3989: 3987: 3984: 3982: 3979: 3977: 3974: 3972: 3969: 3967: 3964: 3962: 3959: 3957: 3954: 3952: 3949: 3947: 3946:Harvey (2005) 3944: 3942: 3939: 3937: 3936:Debbie (2003) 3934: 3932: 3929: 3927: 3924: 3922: 3919: 3917: 3914: 3912: 3911:Walter (2001) 3909: 3907: 3904: 3902: 3899: 3897: 3894: 3892: 3889: 3888: 3886: 3882: 3876: 3873: 3871: 3868: 3866: 3863: 3861: 3860:Alison (1998) 3858: 3856: 3853: 3851: 3848: 3846: 3845:Justin (1997) 3843: 3841: 3840:Rachel (1997) 3838: 3836: 3833: 3831: 3828: 3826: 3823: 3821: 3820:Gertie (1995) 3818: 3816: 3813: 3811: 3810:Warren (1995) 3808: 3806: 3805:Violet (1995) 3803: 3801: 3798: 3796: 3793: 3791: 3788: 3786: 3783: 3781: 3778: 3776: 3773: 3771: 3768: 3766: 3763: 3761: 3758: 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861:retired 849:looting 744:Warrego 598:Arcadia 422:Honiara 296:Map key 162:IBTrACS 69: ( 54: ( 3289:Portal 3248:Freddy 3238:Seroja 3233:Mangga 3228:Harold 3223:Damien 3197:Trevor 3192:Marcus 3187:Debbie 3172:Marcia 3147:Oswald 3127:Carlos 3096:Hamish 3081:George 3076:Monica 3071:Glenda 3056:Ingrid 3051:Harvey 3011:Rosita 2970:Gwenda 2965:Elaine 2960:Thelma 2945:Rhonda 2940:Justin 2935:Rachel 2930:Fergus 2925:Olivia 2920:Kirsty 2900:Gertie 2890:Warren 2885:Violet 2870:Sharon 2840:Oliver 2759:Herbie 2739:Connie 2724:Margot 2704:Elinor 2648:Trixie 2618:Althea 2577:Audrey 2525:– via 2374:  1629:  1423:  857:Althea 826:, the 757:runoff 694:Mackay 669:Strand 567:Impact 426:ESSA-8 344:  339:  334:  329:  324:  319:  314:  309:  140:Damage 49:Formed 4111:2020s 4000:2010s 3884:2000s 3738:1990s 3542:1980s 3351:1970s 3216:2020s 3182:Quang 3177:Olwyn 3152:Rusty 3132:Heidi 3122:Tasha 3117:Magda 3110:2010s 3091:Helen 3066:Larry 3061:Clare 3041:Monty 3036:Inigo 3031:Erica 3026:Chris 3006:Tessi 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Index

Satellite image of a tropical cyclone near the northeastern coast of Australia. Curved rainbands are shown but no eye is visible.
Satellite
BOM
hPa
mbar
inHg
A$
Queensland
IBTrACS
Edit this at Wikidata
1971–72 Australian region cyclone season
tropical cyclone
North Queensland
Townsville
1971–72 Australian region cyclone season
Solomon Islands
Coral Sea
maximum sustained winds
Australian cyclone scale
AEST
Rollingstone
weather satellites
landfall
radar
eyewall replacement cycle
Magnetic Island
storm surge
waves
seawalls
coastal erosion

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