1993–94 Australian region cyclone season
| First system formed |
14 December 1993 |
| Last system dissipated |
1 May 1994 |
| Strongest storm1 |
Thedore – 910 hPa (mbar), 200 km/h (125 mph) (10-minute sustained) |
| Tropical lows |
11 |
| Tropical cyclones |
9 |
| Severe tropical cyclones |
9 |
| Total fatalities |
22 |
| Total damage |
Unknown |
| 1Strongest storm is determined by lowest pressure |
Australian region tropical cyclone seasons
1991–92, 1992–93, 1993–94, 1994–95, 1995–96
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| Related articles |
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1993-1994 Australian region cyclone season was a moderately active Australian cyclone season. It was also an event in the ongoing cycle of tropical cyclone formation. It ran from 1 November 1993 to 30 April 1994. The regional tropical cyclone operational plan also defines a tropical cyclone year separately from a tropical cyclone season, and the "tropical cyclone year" ran from 1 July 1993 to 30 June 1994.
Tropical cyclones in this area were 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.
Storms
Severe Tropical Cyclone Naomi
| Category 3 severe tropical cyclone (Australian scale) |
| Tropical storm (SSHWS) |
|
|
| Duration |
14 December – 18 December |
| Peak intensity |
140 km/h (90 mph) (10-min) 960 hPa (mbar) |
Naomi was the first cyclone of the 1993/94 season. Forming early on 15 December 1993, the storm moved south and strengthened into a Category 3 before making landfall.[1] There was moderate damage and a fishing boat was disabled during the storm. There were no deaths.
Severe Tropical Cyclone Rewa
| Category 5 severe tropical cyclone (Australian scale) |
| Category 4 tropical cyclone (SSHWS) |
|
|
| Duration |
26 December – 21 January |
| Peak intensity |
205 km/h (125 mph) (10-min) 920 hPa (mbar) |
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Cyclone Rewa formed on 26 December 1993. It looped around the Coral Sea for almost a month, crossed New Caledonia and the Solomon Island, and dissipated on 21 January. Rewa was the longest-lived South Pacific tropical cyclone on record, lasting 25 days, from 26 December to 21 January.
Tropical Cyclone Oscar
| Category 1 tropical cyclone (Australian scale) |
| Tropical storm (SSHWS) |
|
|
| Duration |
28 December – 9 January |
| Peak intensity |
65 km/h (40 mph) (10-min) 995 hPa (mbar) |
Cyclone Oscar was a weak system, and only barely reached cyclone strength on 3 January 1994 for about a 12-hour period. It moved on a generally west-southwest course parallel to the Kimberley and Pilbara coasts.[2]
Severe Tropical Cyclone Pearl-Farah
| Category 3 severe tropical cyclone (Australian scale) |
| Category 2 tropical cyclone (SSHWS) |
|
|
| Duration |
10 January – 21 January |
| Peak intensity |
155 km/h (100 mph) (10-min) 940 hPa (mbar) |
Tropical Cyclone Pearl developed off the northwest Kimberley coast on 10 January 1994 and moved westwards as a very small but severe Category 3 cyclone covering a distance of more than 4000 km, before finally dissipating in the Central Indian Ocean on the 21st.[2]
Severe Tropical Cyclone Quenton
| Category 3 severe tropical cyclone (Australian scale) |
| Category 1 tropical cyclone (SSHWS) |
|
|
| Duration |
22 January – 29 January |
| Peak intensity |
150 km/h (90 mph) (10-min) 955 hPa (mbar) |
Tropical Cyclone Quenton began as a tropical low to the east of Christmas Island on 22 January 1994. The low moved slowly west, then on 25 January intensified to cyclone strength and moved southward across the Indian Ocean. By early on the 29th the cyclone had dissipated.[2]
Tropical Cyclone Sadie
| Category 1 tropical cyclone (Australian scale) |
| Tropical storm (SSHWS) |
|
|
| Duration |
29 January – 31 January |
| Peak intensity |
85 km/h (50 mph) (10-min) 985 hPa (mbar) |
Early on 29 January, the BoM reported that a tropical low had developed within the monsoon trough about 50 km (30 mi) to the north of the Gove Peninsula in the Northern Territory.[3][4] During that day the low rapidly developed further as it moved south-eastwards, before early on 29 January TCWC Brisbane reported that the low had developed into a category 1 tropical cyclone and named it Sadie as the system started to move southwards.[3] Later that day the JTWC initiated advisories on Cyclone Sadie and designated it as Tropical Cyclone 14P, while the system started to move towards the east and was near its peak 1-minute maximum sustained windspeeds of 85 km/h (50 mph).[3][5][6] Early the next day Cyclone Sadie made landfall to the north of near Normanton, after TCWC Brisbane had reported that the system had peaked with 10-minute maximum sustained winds of 85 km/h (50 mph).[3][4] After making landfall, the system moved towards the south-southeast before weakening and degenerating into a tropical low/rain depression later that day.[3]
Severe Tropical Cyclone Theodore
| Category 5 severe tropical cyclone (Australian scale) |
| Category 4 tropical cyclone (SSHWS) |
|
|
| Duration |
22 February – 28 February |
| Peak intensity |
200 km/h (125 mph) (10-min) 910 hPa (mbar) |
Severe Tropical Cyclone Theodore existed from 22 February to 28 February.
Severe Tropical Cyclone Sharon
| Category 4 severe tropical cyclone (Australian scale) |
| Category 3 tropical cyclone (SSHWS) |
|
|
| Duration |
12 March – 22 March |
| Peak intensity |
190 km/h (115 mph) (10-min) 930 hPa (mbar) |
Tropical Cyclone Sharon was the most intense cyclone in the Western Australian region during the 1993/94 season. It formed about 1100 km north of Northwest Cape on 12 March 1994, then rapidly intensified during the 14th while moving on a south-southwest path towards the west Pilbara coast. During the 16th the cyclone rapidly weakened due to movement into a region of strong westerly wind shear. Cyclone warnings were issued for the west Pilbara and upper west coast on the 16th but were cancelled on the morning of the 17th Continued shearing and subsequent movement over cooler waters weakened the storm to below cyclone strength by the morning of the 18th.[2]
Tropical Cyclone Tim
| Category 1 tropical cyclone (Australian scale) |
| Tropical storm (SSHWS) |
|
|
| Duration |
28 March – 3 April |
| Peak intensity |
65 km/h (40 mph) (10-min) 995 hPa (mbar) |
Tropical Cyclone Tim was a very small weak system that moved on a generally westward path from south of Sumatra to the Cocos Islands from 28 March to 3 April 1994. It passed about 100 km to the south of Christmas Island but its effects, other than a wind shift, were barely recognizable on the Island.[2]
Severe Tropical Cyclone Vivienne
| Category 3 severe tropical cyclone (Australian scale) |
| Category 1 tropical cyclone (SSHWS) |
|
|
| Duration |
5 April – 13 April |
| Peak intensity |
150 km/h (90 mph) (10-min) 955 hPa (mbar) |
Tropical Cyclone Vivienne formed from a tropical low that had moved westward across the Timor Sea. It intensified rapidly during the afternoon and night of 5 April 1994, reaching maximum intensity on 8 April when it was located 550 km to the north-northwest of Broome. Its development from here on was hampered by vertical wind shear and Vivienne moved on a generally west-southwest path parallel to, but well offshore from, the Western Australian coastline. It dissipated on 13 April and no watches or warnings were issued.[2]
Tropical Depression 29P
| Tropical depression (SSHWS) |
|
|
| Duration |
24 April – 25 April |
| Peak intensity |
55 km/h (35 mph) (1-min) 1000 hPa (mbar) |
On 20 April, the JTWC started to monitor an area of low pressure that located over the Solomon Islands about 155 km (95 mi) to the north of Honiara.[7] During that day the disturbance moved towards the southeast and passed over several of the Solomon Islands, before emerging into the Australian basin.[7] Over the next couple of days the disturbance gradually developed further while moving towards the southwest before re-curving and moving southeastwards.[7] On 24 April, as it moved back into the South Pacific basin, the JTWC initiated advisories on the disturbance, designating it as Tropical Cyclone 29P, with peak windspeeds equivalent to a tropical depression.[7][8] As the system was classified, it recurved again and started to move slowly towards the northwest, and started to feel the effects of a high amount of vertical windshear.[7][8] As a result of the windshear, the center became exposed and displaced from the deep convection before the JTWC issued their final advisory on 25 April as 29P weakened into an area of low pressure, before dissipating later that day about 600 km (375 mi) to the southwest of Honiara.[7][8]
Tropical Cyclone Willy
| Category 1 tropical cyclone (Australian scale) |
| Tropical storm (SSHWS) |
|
|
| Duration |
26 April – 1 May |
| Peak intensity |
85 km/h (55 mph) (10-min) 985 hPa (mbar) |
Willy was a Category 1 cyclone lasting from 26 April to 1 May 1994 that passed about 80 km west of the Cocos Islands.[2]
Other systems
During March 23, a weak tropical low developed within the South Pacific Convergence Zone near Papua New Guinea's Louisiade Archipelago, within an area of favourable surface and upper air conditions for further development.[3][9] Over the next day the system moved eastwards and gradually developed further, before TCWC Port Moresby reported that the system had developed into a category 1 tropical cyclone on the Australian scale and named it Usha during the next day as it moved out of the Australian region.[3][9][10]
Season effects
See also
References
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