Updated Tropical Cyclone Outlook for the Western Region

Issued at 3:00 pm WST on Tuesday 24 January 2023
for the period until midnight WST Friday 27 January 2023.

Existing Cyclones in the Western Region:

Nil.

Potential Cyclones:

A weak tropical low is expected to move west into the region from the Timor Sea on Wednesday 25 January and then turn south towards the Pilbara or west Kimberley coast on Thursday. It is expected to remain weak as it approaches the Pilbara coast on the weekend. There is a Low likelihood of it developing into a tropical cyclone on Friday 27 January and Saturday 28 January prior to crossing the coast. This then decreases to Very Low on Sunday 29 January.

Likelihood of this system being a tropical cyclone in the Western Region on:

Wednesday:

Very Low

Thursday:

Very Low

Friday:

Low

A trough in the central Indian Ocean is likely to extend into the northwest of the region on the weekend to approximately Christmas Island. A tropical low may form within this trough and the likelihood it developing into a tropical cyclone increases to Low on Tuesday 31 January.

Likelihood of another system being a tropical cyclone in the Western Region on:

Wednesday:

Very Low

Thursday:

Very Low

Friday:

Very Low

NOTES: The likelihood is an estimate of the chance of each system being a tropical cyclone in the Region for each day.

Very Low:

less than 5%

Low:

5% to 20%

Moderate:

20 to 50%

High:

Over 50%

The Western Region refers to the Indian Ocean between Longitudes 90-125E and south of 10S.

Further information on Tropical Cyclones is available at www.bom.gov.au/weather/cyclone/