Forecast issued at 4:45 am WST on Saturday 27 August 2016.
Northern Western Australia
A high pressure system lies over eastern Australia. A trough is developing through the Pilbara and Kimberley, and will move east over the weekend. On Monday a ridge will develop over central parts of the State.
Southern and Central Western Australia
A cold front moves across southern and central parts of the State today. A low pressure system off the south coast behind the front moves eastwards over the weekend. On Monday and Tuesday the low moves into the Bight with a high pressure ridge developing over central parts of the State.
Forecast for the rest of Saturday
Showers southwest of a line Coral Bay to Israelite Bay, extending to southwest of a line Onslow to Eucla in the afternoon. A band of rain with gusty winds moves east through eastern parts of the South West Land Division, the Goldfields, Gascoyne and west Eucla. Possible thunderstorms near the south coast between Cape Leeuwin and Esperance. Gusty winds over the southern half of the State.
Sunday 28 August
A band of showers through the Interior, northeast Gascoyne, Pilbara and Eucla moves east during the day. Showers possible over the Kimberley. Showers over the South West Land Division, clearing northern districts during the afternoon. Thunderstorms possible near the south coast between Bremer Bay and Israelite Bay.
Monday 29 August
Showers near the west coast. Showers near the southern and Eucla coasts, extending to adjacent inland parts for a period during the day. Showers possible over the Kimberley, North Interior and adjacent Pilbara with thunderstorms possible in the northwest Kimberley.
Tuesday 30 August
Showers and thunderstorms possible over the Kimberley and Interior. Showers near the south coast, clearing during the afternoon. Showers extending from the southwest to be southwest of a line Kalbarri to Bremer Bay by the evening.
The next routine forecast will be issued at 4:30 pm WST Saturday.