A deep trough is passing through the southwestern part of Western Australia today. A well-marked cold front will sweep the area during this morning then strong winds kick in.

A short-period intense rain is forecast (30mm/h is expected) in the vicinity of the front.

Damaging wind gusts are also expected along with likely thunderstorms. This will affect western coastal areas until Wednesday night and southern coastal areas until Thursday early morning.

Damaging winds behind the front will persist into Wednesday night. They can reach gale force (63 km/h sustained) along the western and southern coasts. Winds will be westerly at the beginning and will change to southwesterly during the afternoon.

– WeatherWatch.co.nz