Source: Bureau of Meteorology

For people in parts of the
Lower West and
South West districts.

Issued at 11:41 am Friday, 11 August 2017.

Weather Situation:

A strong cold front is approaching the southwest corner of the State and is expected to reach the Southwest Capes around 8:00pm WST this evening, and extend to reach Perth around 1:00am WST Saturday morning.

The passage of the cold front overnight will produce showery and gusty conditions. Showers and isolated thunderstorms may produce DAMAGING WINDS in excess of 100 kilometres per hour which could result in DAMAGE TO HOMES AND PROPERTY in localised areas.

DAMAGING WINDS may develop from 6:00pm tonight about the Southwest Capes then extend to an area southwest of a line from Mandurah to Windy Harbour around 11:00pm and extend northwards to include the Perth Metropolitan area around 1:00am Saturday morning.

The front is also expected to bring periods of heavy rainfall that may lead to flash flooding later this eveing and early Saturday morning. A Flood Watch has been issued for the South West and Lower West Forecast Districts. For further details please refer to http://www.bom.gov.au/wa/warnings/.

Conditions are expected to ease from the west Saturday morning as the cold front moves inland.

Another front is expected to reach the southwest corner of the State Saturday evening and may produce another period of gusty winds and heavy rainfall. A third, much stronger cold front, the strongest for the year, is expected to affect the southwest corner of the State from Sunday night.

Locations which may be affected include Bunbury, Busselton, Mandurah, Margaret River and the Perth metropolitan area.

This is typical weather for this time of the year but winds may cause damage to property and make road conditions hazardous.

The Department of Fire and Emergency Services advises that people should:
* If outside find safe shelter away from trees, power lines, storm water drains and streams.
* Close your curtains and blinds, and stay inside away from windows.
* Unplug electrical appliances and do not use land line telephones if there is lightning.
* If boating, swimming or surfing leave the water.
* Be alert and watch for hazards on the road such as fallen power lines and loose debris.
* Keep away from flooded drains, rivers, streams and waterways.
* Be careful of fallen trees, damaged buildings and debris.
* Be careful of fallen power lines. They are dangerous and should always be treated as live.
* Assess your home, car and property for damage.
* If damage has occurred take photos and contact your insurance company to organise permanent repairs.
* If your home or property has significant damage, like a badly damaged roof or flooding, call the SES on 132 500.