Forecast issued at 4:45 am WST on Monday 27 June 2016.
Northern Western Australia
A high pressure system will move east out of the State during Monday. A new ridge of high pressure will extend from the west during Wednesday and Thursday across the south of the State, increasing east to southeasterly winds over northern waters.
Southern and Central Western Australia
A low pressure system is expected to develop southwest of the State during Monday, with an associated cold front to reach the South West Capes early Tuesday morning. The front will weaken during Tuesday as it moves across southern parts of the State. A new high pressure ridge will extend from the west during Wednesday across southern parts of the State as a second, weak cold front brushes the South Coast on Wednesday evening.
Forecast for the rest of Monday
Showers southwest of a line from Perth to Walpole, mainly near the coast, increasing later in the day.
Tuesday 28 June
Showers extending across the South West Land Division during the day. Chance of thunderstorms over western parts.
Wednesday 29 June
Showers southwest of a line Shark Bay to Leonora to Eucla, contracting to areas near the south coast and near the west coast south of Perth by the evening. Cloudy with the chance of light rain over the western Pilbara and far northwest Gascoyne.
Thursday 30 June
Cloudy with the chance of light rain over the western Pilbara and far northwest Gascoyne. Showers near the south coast and Eucla coast.
The next routine forecast will be issued at 4:30 pm WST Monday.