2000–01 Australian region cyclone season
| First system formed |
3 December 2000 |
| Last system dissipated |
23 April 2001 |
| Strongest storm1 |
Sam – 935 hPa (mbar), 180 km/h (110 mph) (10-minute sustained) |
| Tropical lows |
9+ |
| Tropical cyclones |
8 |
| Severe tropical cyclones |
3 |
| Total fatalities |
163 total |
| Total damage |
$12.8 million (2001 USD) |
| 1Strongest storm is determined by lowest pressure |
Australian region tropical cyclone seasons
1998–99, 1999–00, 2000–01, 2001–02, 2002–03
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| Related articles |
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The 2000–01 Australian region cyclone season was an event in the ongoing cycle of tropical cyclone formation. It began on 1 November 2000 and ended on 30 April 2001. The regional tropical cyclone operational plan also defines a tropical cyclone year separately from a tropical cyclone season, which runs from 1 July 2000 to 30 June 2001.
Tropical cyclones in this area are monitored by four Tropical Cyclone Warning Centres (TCWCs): the Australian Bureau of Meteorology in Perth, Darwin, and Brisbane; and TCWC Port Moresby in Papua New Guinea.[1]
Storms
Severe Tropical Cyclone Sam
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| Category 4 severe tropical cyclone (Australian scale) |
| Category 3 tropical cyclone (SSHWS) |
|
|
| Duration |
3 December – 10 December |
| Peak intensity |
180 km/h (110 mph) (10-min) 935 hPa (mbar) |
Sam originated from a tropical low that formed in the Arafura Sea on 28 November. Tracking generally westward, the initial low-pressure area remained generally weak until it entered the Timor Sea, by which time it had strengthened into a tropical cyclone on 5 December. Though a subtropical ridge was forcing the cyclone westward at the time,[2] an approaching shortwave trough caused Sam to track southward the following day, towards the Australian coast.[3][4] During its southward progression, Sam rapidly intensified, and reached its peak intensity on 7 December.[2][3][4] The next day, the storm made landfall near Lagrange, Western Australia at the same intensity.[5] Once inland, Sam was slow to weaken as it recurved eastward, and persisted for nearly a week inland before dissipating on 14 December.[4]
Throughout its existence, Cyclone Sam brought heavy rainfall to a wide swath of northern Australia.[3][4] Rainfall peaked at520 mm (20 in) in Shelamar over a 48-hour period ending on 11 December. Upon making landfall, damage was considerable, albeit localized.[4] Most of the destruction wrought by Sam occurred near the coast, particularly in Bidyadanga and Anna Springs Station.[3][4][6] Some buildings sustained considerable damage, and trees and power lines were felled, resulting in some power outages.[2] Offshore, 163 illegal immigrants aboard two vessels were feared to have drowned, which would make Sam one of the deadliest cyclones in Australian history.[2][7] However, these people were later accounted for.[8]
Tropical Cyclone Terri
| Category 2 tropical cyclone (Australian scale) |
| Tropical storm (SSHWS) |
|
|
| Duration |
27 January – 31 January |
| Peak intensity |
110 km/h (70 mph) (10-min) 975 hPa (mbar) |
Terri formed on 27 January 2001 near the northern Kimberley coast. The storm paralleled the coast, reaching Category 2 strength before making landfall near Pardoo early on 31 January. The storm dissipated Late on the same day.[9]
Tropical Cyclone Winsome
| Category 1 tropical cyclone (Australian scale) |
| Tropical storm (SSHWS) |
|
|
| Duration |
8 February – 14 February |
| Peak intensity |
75 km/h (45 mph) (10-min) 981 hPa (mbar) |
Winsome was a weak system that developed from a low in the Gulf of Carpentaria on 8 February.
Torrential rains produced by the storm in the Northern Territory resulted in severe flooding which killed two people.[10]
Tropical Cyclone Vincent
| Category 2 tropical cyclone (Australian scale) |
| Tropical storm (SSHWS) |
|
|
| Duration |
7 February – 15 February |
| Peak intensity |
100 km/h (65 mph) (10-min) 980 hPa (mbar) |
Cyclone Vincent formed on 7 February 2001, 900 km northwest of Onslow, Western Australia from an active monsoonal trough. Wind shear prevented the tropical low from intensifying for a few days, but once the storm formed it began to move southeast and intensify. Soon it intensified into a Category 2 cyclone. Wind shear soon became stronger and Cyclone Vincent weakened to a Category 1 cyclone. Cyclone Vincent crossed the Western Australia coast as a tropical low, a few km south of Broome, Western Australia.
Tropical Cyclone Wylva
| Category 1 tropical cyclone (Australian scale) |
|
|
| Duration |
14 February – 22 February |
| Peak intensity |
75 km/h (45 mph) (10-min) 990 hPa (mbar) |
Tropical Cyclone Wylva hit the coast of Australia in February 2001. Although it was a weak Category 1 cyclone when it peaked in strength, it caused heavy damage when it made landfall. Heavy rain produced a record-breaking flood, which washed down the Victoria River[citation needed]. Damages were worth $13 million and 700 people were evacuated from the dangerous flood waters.[citation needed]
Tropical Low 10P (07F)
| Tropical low (Australian scale) |
| Tropical storm (SSHWS) |
|
|
| Duration |
16 February – 16 February (exited basin) |
| Peak intensity |
55 km/h (35 mph) (10-min) 1000 hPa (mbar) |
This storm moved from Brisbane's area of responsibility into Fiji's on 16 February. It dissipated on the 18th.
Severe Tropical Cyclone Abigail
| Category 3 severe tropical cyclone (Australian scale) |
| Tropical storm (SSHWS) |
|
|
| Duration |
24 February – 8 March |
| Peak intensity |
120 km/h (75 mph) (10-min) 970 hPa (mbar) |
On 24 February 2001, Cyclone Abigail formed about 80 km northeast of Cairns, Australia. It then made landfall in Queensland as a Category 1 storm.
Severe Tropical Cyclone Walter
| Category 4 severe tropical cyclone (Australian scale) |
| Category 2 tropical cyclone (SSHWS) |
|
|
| Duration |
1 April – 8 April |
| Peak intensity |
170 km/h (105 mph) (10-min) 940 hPa (mbar) |
Walter was a storm that formed east of Christmas Island and tracked westward at a low latitude.
On 3 April, Cocos Island was placed under a cyclone watch as Walter approached the island.[11] Throughout 5 April, heavy rains and high winds, estimated up to 90 km/h (56 mph) battered the area as Walter bypassed the island.[12]
Tropical Cyclone Alistair
| Category 2 tropical cyclone (Australian scale) |
| Category 1 tropical cyclone (SSHWS) |
|
|
| Duration |
15 April – 23 April |
| Peak intensity |
110 km/h (70 mph) (10-min) 975 hPa (mbar) |
The second most damaging cyclone of the 2000-01 Cyclone season, Alistair made landfall close to Carnarvon on 24 April 2001 as a poorly organized cyclone. The centre passed just to the north of town with a wind gust to 67 kilometres per hour from the northeast recorded at 4:11 am. Minimum pressure of 1002.9 hPa was recorded at 5 am, followed by the peak recorded wind gust of 90 kilometres per hour from the southeast at 6 am. A total of 24 mm of rainfall was reported in Carnarvon. Plantations to the north of Carnarvon reported 30-40% crop losses, with wind estimates of 100 to 110 kilometres per hour.[13]
See also
References
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External links
