Global tropical cyclone season
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- 12 - 20 April (Perth TCWC)
- 17 - 20 April (Perth TCWC)
- 5 - 10 December (Perth TCWC)
- RSMC LA REUNION TROPICAL CYCLONE CENTER BEST TRACK DATA STS ASTRIDE
- BEST TRACK DATA TC BABIOLA
TROPICAL CYCLONE VAUGHAN 3-6 April (Brisbane TCWC) A monsoon low was identified near New Caledonia on 29 March and initially moved southwest before commencing a north and then northwest track. The low intensified rapidly due to favourable upper outflow and was named Vaughan on 3 April. The cyclone tracked westward across the Coral Sea towards north Queensland, reaching peak intensity of 30 m/s (58 kn) on 5 April before rapidly weakening, being downgraded to a tropical low the following day. The low was responsible for heavy rainfall along the north Queensland coast. SEVERE TROPICAL CYCLONE PAUL 12 - 20 April (Perth TCWC) Paul started as a low in the monsoon trough in the Timor Sea on 11 April. The low tracked westwards, being located north of the mid-level ridge axis, and in a favourable environment developed into a tropical cyclone on 12 April. Paul reached a peak intensity of 58 m/s (112 kn) on 15 April, making it the strongest Australian Region tropical cyclone in the year 2000. Between 14 and 18 April, Paul had a symmetric structure and a clear well defined eye with a diameter of 40 kilometres. On 17 April, Paul slowed as it moved into a break in the middle level ridge, and subsequently weakened as vertical wind shear increased, dissipating over water on 20 April. SEVERE TROPICAL CYCLONE ROSITA 17 - 20 April (Perth TCWC) As Paul moved westward, a second low formed offshore from Timor on 14 April and travelled slowly southwest then south under the influence of the mid-level ridge. It developed into a very small tropical cyclone named Rosita on 17 April, and intensified rapidly. The following day, Rosita commenced a southeastward track and crossed the coast about 40 kilometres south of Broome at its peak intensity of 51 m/s (100 kn). Rosita was one of the most severe tropical cyclones to cross the west Kimberley coast in the past 100 years. Major structural damage occurred at a tourist resort and pastoral station near Cape Villaret where the eye crossed the coast. In Broome the maximum wind gust recorded was 43 m/s (83 kn) causing extensive damage to trees and power lines. After crossing the coast, Rosita moved southeast over the Great Sandy desert causing damage at the remote community of Balgo Hills about 700 kilometres inland. Rosita eventually weakened below tropical cyclone strength late on 20 April as it approached the Northern Territory border. SEVERE TROPICAL CYCLONE SAM 15 - 10 December (Perth TCWC) During an active phase of the ISO over Australian longitudes late in November, a broad area of low pressure formed in the monsoon trough near Cape York. The weak disturbance moved westward across the southern Arafura Sea then slowly southwards through the western Timor Sea. The low deepened in association with a westerly wind burst in early December, and turned westward across the far north Kimberley region of Western Australia. The low attained tropical cyclone intensity after moving offshore into the Indian Ocean on 5 December. Sam initially moved on a westward track but turned to the south late on 6 December after interacting with an approaching short wave trough. Sam then intensified rapidly, reaching Australian Category 5 intensity early on 8 December, as it moved very slowly to the southwest offshore from the town of Broome. The cyclone commenced a southeast track and crossed the Western Australian coast close to its maximum intensity of 54 m/s (105 kn) during the evening of 8 December near the small community of Bidyadanga. Tropical cyclone structure appeared to be maintained for a day or so as Sam progressed inland into the Great Sandy Desert, after which the residual circulation persisted for another four days as it moved east across the Northern Territory. Sam caused severe damage to buildings, power lines and vegetation at Bidyadanga and Anna Springs Station, but fortunately the resident population of several hundred people were evacuated prior to coastal crossing. Sam, its precursor low and residual rain depression caused heavy rain and flooding over a wide area of northern Australia. The peak rainfall reported in the 48 hours to 9 am 11 December was 520 mm at Shelamar, inland from the coastal crossing point. RSMC LA REUNION TROPICAL CYCLONE CENTER BEST TRACK DATA STS ASTRIDE
BEST TRACK DATA TC BABIOLA
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