Source: Bureau of Meteorology

For people in Lower West, South West, South Coastal, Great Southern and parts of Central West, South East Coastal and Central Wheat Belt districts.

Issued at 11:03 am Saturday, 31 July 2021.

Damaging winds developing near southwest coast this evening extending northeast overnight.

Weather Situation: A strong cold front will move over the southwest of the State late this evening and overnight into Sunday morning, resulting in an increase in showers, thunderstorms and damaging winds. A cold and unstable air mass will follow during Sunday with brief but heavy showers and thunderstorms.

DAMAGING WIND GUSTS to 110 km/h that could cause DAMAGE TO HOMES AND PROPERTY are expected to initially develop southwest of Cape Naturaliste to Windy Harbour after 8pm Saturday, extending to southwest of Mandurah to Bremer Bay by midnight. Conditions deteriorate through the remainder of the warning area between midnight and 6am on Sunday. These conditions are expected to be widespread about coastal areas extending from Jurien Bay to Albany and throughout the South West district, with more isolated risk through remaining areas. It is unlikely for conditions to begin easing until Sunday afternoon.

Ongoing DAMAGING SURF CONDITIONS which could cause SIGNIFICANT BEACH EROSION continue between Shark Bay and Esperance.

Although widespread heavy rainfall is NOT expected with this front, due to saturated river catchments in the southwest of the State, localised flash flooding may occur. There are a number of Flood Watches and Warnings current, a summary is available at http://www.bom.gov.au/wa/warnings/flood/index.shtml and further details can be found for individual river catchments at http://www.bom.gov.au/wa/warnings/.

Locations which may be affected include Albany, Bunbury, Busselton, Dunsborough, Esperance, Katanning, Mandurah, Manjimup, Margaret River, Merredin, Moora, Mount Barker, Narrogin, Northam and Perth.

People in the southwest of WA experience a front as windy as this about 3 to 4 times a year.

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.