#IDW10100 Western Australia Forecast Issued at 4:45 am WST on Sunday 12 September 2021

IDW10100
Australian Government Bureau of Meteorology
Western Australia

Western Australia Forecast
Issued at 4:45 am WST on Sunday 12 September 2021
for the period until midnight WST Wednesday 15 September 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 strong high pressure system lies over the southern Indian Ocean and extends a
developing ridge over the south coast, with a high pressure system expected to
move into the Bight on Sunday. A trough will develop over the inland Pilbara
and North Interior on Sunday, and remain there early next week.

Weather Situation – Southern and Central Western Australia
A ridge of high pressure is developing over the south coast with a high
pressure system moving into the Bight on Sunday. A trough will develop through
the South Interior on Monday before another trough develops near the west coast
on Tuesday. The trough will move inland early Wednesday ahead of a cold front
that crosses the west coast later in the day.

Forecast for the rest of Sunday 12 September
Patchy morning frost through the Central Wheat Belt, Great Southern and
southern Goldfields. Showers and possible thunderstorms through the northern
Goldfields and adjacent parts of the Gascoyne, South Interior and Eucla.
Isolated showers about the south coast and the adjacent Great Southern.

Forecast for Monday 13 September
Patchy morning frost through inland parts of the South West Land Division.
Showers over the Eucla, southern Interior, eastern Goldfields and the adjacent
South East Coastal district. A chance of showers over the south coast west of
Walpole.

Forecast for Tuesday 14 September
Slight chance of a shower about the SW Capes.

Forecast for Wednesday 15 September
Showers about the SW Capes extending to areas southwest of Kalbarri to Hopetoun
during the day. A chance of thunderstorms over the South West district.

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

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