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IDW12000 Australian Government Bureau of Meteorology Western Australia State Forecast Issued at 4:40 pm WST on Tuesday 19 May 2009 IDW1200001 Warning summary Severe Weather Warning issued for Thursday for the Central West, Lower West, Southwest, South Coastal, Central Wheat Belt and Great Southern Districts. Gale Warning from Mandurah to Bremer Bay for Wednesday. Strong Wind Warning from Kalbarri to Mandurah for Wednesday. IDW1200002 Forecast for Tuesday evening SW Land Division: Isolated showers southwest of a line from Perth to Albany, though mainly light falls. Fine over the remainder of the state. Forecast for Wednesday SW Land Division: Isolated showers southwest of a line from Jurien Bay to Bremer Bay. Scattered showers extending from the Southwest District during the afternoon reaching the southern Lower West by the evening. Showers becoming widespread late evening over the Southwest Districts with isolated squally thunderstorm with moderate to heavy falls. Fine over the remainder of the state. IDW1200003 Perth Forecast Warning summary Severe Weather warning issued for Thursday. Forecast for Tuesday evening Fine. Light to moderate west to northwest winds. Precis: Fine. Forecast for Wednesday Shower or two during the day, increasing during the evening. Moderate north to northwest winds, freshening during the morning and becoming strong and gusty during the evening. Precis: Shower or two, increasing later. City: Min 12 Max 25 Mandurah: Min 16 Max 22 UV Alert: 11:20 am to 1:10 pm, UV Index predicted to reach 3 [Moderate] Fire Danger: Coastal Plain: HIGH Hills: HIGH Thursday Showery periods. Windy. Min 12 Max 19 Friday Showers. Min 8 Max 17 Saturday Few showers. Min 7 Max 17 Sunday Shower or two easing. Min 7 Max 20 Monday Few showers. Min 8 Max 18 Tuesday Few showers. Min 9 Max 19 The next routine forecast will be issued at 4:45 am WST Wednesday.
In the aftermath of the bush fires around Perth the Western Australian government has offered a $A200,000 reward for information leading to the conviction of an arsonist.

Premier Alan Carpenter, who is visiting the area of the Dwellingup fires said, "It is almost inconceivable that anybody could be so stupid and so criminally, willfully damaging to the community as to go about setting a fire deliberately in these circumstances".

Further fires were lit today near Yanchep and in John Forrest National Park both fires are believed to be deliberately lit as they had multiple ignition points. 

Earlier this morning the Dwellingup fire, assisted by strong easterly winds , broke containment lines and threatened the town of Coolup. Additional flareups and spot fires from embers have now been contained. This fire has burnt more then 11,000 hectares so far. 

Spokesman for the Department of Environment and Conservation, Murray Mitchel says that firefighters were trying to consolidate the fire in preparation for Wednesday's expected 40oC (104oF) temperatures. A fire weather warning has been issued for the south west of Western Australia.