IDW10100
Australian Government Bureau of Meteorology
Western Australia

Western Australia Forecast
Issued at 4:45 am WST on Tuesday 19 January 2021
for the period until midnight WST Friday 22 January 2021.

Warning Information
For latest warnings go to www.bom.gov.au, subscribe to RSS feeds, call 1300 659
210* or listen for warnings on relevant TV and radio broadcasts.

Weather Situation – Northern Western Australia
A trough lies near the Kimberley and Pilbara coasts. The monsoon trough lies
through the Timor Sea with a developing tropical low within the monsoon trough.
The low will develop further as it moves southwest parallel to the northwest
coast on Wednesday and Thursday, dragging the monsoon trough south over
northwest WA for the remainder of the week. The system may track towards the
Pilbara coast later in the week. There remains uncertainty in the development
and movement of this tropical low during the week.

Weather Situation – Southern and Central Western Australia
A deep surface trough lies near the west coast with a high pressure ridge lying
to the southeast of the State. The ridge will continue to contract east this
morning as the trough moves inland from late Tuesday into central parts on
Wednesday and Thursday. A weak ridge develops to the south of the State on
Thursday.

Forecast for the rest of Tuesday 19 January
Showers and thunderstorms over the north Kimberley, Pilbara, inland Gascoyne,
and parts of the South West Land Division.

Forecast for Wednesday 20 January
Showers and thunderstorms over the Kimberley, central Pilbara and eastern parts
of the Gascoyne, and the central, southern and southeastern parts of the South
West Land Division.

Forecast for Thursday 21 January
Showers and thunderstorms over the Kimberley, Pilbara and eastern parts of the
Gascoyne, Goldfields, South East Coastal and Eucla districts. Light showers
about the southern parts of the South Coastal and South West districts.

Forecast for Friday 22 January
Showers and thunderstorms over the Kimberley, Pilbara and eastern parts of the
Gascoyne, Goldfields, South Interior, and Eucla districts. Light showers about
the South Coastal district.

The next routine forecast will be issued at 4:30 pm WST Tuesday.

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