1989–90 Australian region cyclone season
| 1989–90 Australian region cyclone season | |
|---|---|
Season summary map
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| Seasonal boundaries | |
| First system formed | July 14, 1989 |
| Last system dissipated | April 18, 1990 |
| Strongest storm | |
| Name | Alex |
| • Maximum winds | 240 km/h (150 mph) (10-minute sustained) |
| • Lowest pressure | 925 hPa (mbar) |
| Seasonal statistics | |
| Tropical lows | 14 |
| Tropical cyclones | 14 |
| Severe tropical cyclones | 4 |
| Total fatalities | Unknown |
| Total damage | Unknown |
| Related articles | |
| Tropical storm (SSHWS) | |
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| Duration | July 14 – July 16 |
|---|---|
| Peak intensity | 65 km/h (40 mph) (1-min) 997 hPa (mbar) |
| Category 2 tropical cyclone (Australian scale) | |
| Category 1 tropical cyclone (SSHWS) | |
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| Duration | November 4 – November 13 |
|---|---|
| Peak intensity | 110 km/h (70 mph) (10-min) 982 hPa (mbar) |
| Category 2 tropical cyclone (Australian scale) | |
| Tropical storm (SSHWS) | |
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| Duration | 13 December – 20 December |
|---|---|
| Peak intensity | 110 km/h (70 mph) (10-min) 975 hPa (mbar) |
| Category 2 tropical cyclone (Australian scale) | |
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| Duration | January 4 – January 17 |
|---|---|
| Peak intensity | 95 km/h (60 mph) (10-min) 988 hPa (mbar) |
| Category 3 severe tropical cyclone (Australian scale) | |
| Tropical storm (SSHWS) | |
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| Duration | January 11 – January 21 |
|---|---|
| Peak intensity | 150 km/h (90 mph) (10-min) 966 hPa (mbar) |
| Category 2 tropical cyclone (Australian scale) | |
| Tropical storm (SSHWS) | |
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| Duration | January 24 – January 29 |
|---|---|
| Peak intensity | 100 km/h (65 mph) (10-min) 972 hPa (mbar) |
| Category 2 tropical cyclone (Australian scale) | |
| Category 1 tropical cyclone (SSHWS) | |
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| Duration | January 26 – February 4 |
|---|---|
| Peak intensity | 110 km/h (70 mph) (10-min) 975 hPa (mbar) |
| Category 3 severe tropical cyclone (Australian scale) | |
| Category 1 tropical cyclone (SSHWS) | |
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| Duration | February 25 – March 6 |
|---|---|
| Peak intensity | 150 km/h (90 mph) (10-min) 965 hPa (mbar) |
| Category 1 tropical cyclone (Australian scale) | |
| Tropical depression (SSHWS) | |
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| Duration | February 28 – March 5 |
|---|---|
| Peak intensity | 75 km/h (45 mph) (10-min) 990 hPa (mbar) |
The 1989–90 Australian region cyclone season was an above average tropical cyclone season. It was also an event in the ongoing cycle of tropical cyclone formation. It ran from 1 November 1989 to 30 April 1990. 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 1989 to 30 June 1990.
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.
Tropical Storm 02S existed from July 14 to July 16.
Tropical Cyclone Pedro existed from November 4 to November 13.
On 13 December, the BoM started to monitor a monsoon low, that had developed within the Arafura Sea to the northeast of Darwin. Over the next day, the system moved southeastwards over the Northern Territory, before it re-curved slightly and entered the Gulf Of Carpentaria. Early on 15 December, the system was named Felicity by TCWC Brisbane, after it had become a category 1 tropical cyclone on the Australian Scale. During that day the JTWC initiated advisories on the system and designated it as Tropical Cyclone 07P, with peak 1-minute sustained wind speeds of 110 km/h (70 mph). TCWC Brisbane subsequently reported peak 10-minute sustained wind speeds of 110 km/h (70 mph), before the system made landfall over the Cape York Peninsula where weakened below cyclone intensity. The system subsequently moved into the Coral Sea during 16 December, where it started to rapidly deepen, but did not reattain the classical characteristics of a tropical cyclone. As a result, both TCWC Nadi and TCWC Brisbane treated the system as a tropical depression over the next four days despite winds of between 110 and 115 km/h (68 and 71 mph) being observed in the southwest quadrant. Felicity subsequently dissipated during 20 December as it was absorbed by a short-wave trough of low pressure to the north of New Zealand. Some minor damage to vegetation was recorded on the Cape York Peninsular.
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