Source: Bureau of Meteorology

For people in parts of South West, Lower West and South Coastal districts.

Issued at 10:53 am Monday, 20 April 2026.

Damaging wind gusts are expected over southwest parts of the state from Monday evening.

Weather Situation: A cold front is expected to move across the southwest of the state from late Monday afternoon into evening, bringing gusty showers and possible thunderstorms.

DAMAGING WIND GUSTS with peak gusts of up to 100 km/h are possible across the South West Capes by early Monday evening, before extending further eastwards and northwards throughout the evening and overnight.

This is the first significant cold front of the year.

Conditions will ease by very early Tuesday morning.

Locations which may be affected include Bunbury, Busselton, Margaret River, Augusta, Dunsborough, Walpole and Windy Harbour.

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.