Rottnest and Garden Island have copped a battering after a cold front swept across the coast on Sunday.
A wind gust of 91km/h was recorded at Rottnest at 1.40am on Monday while Garden Island was hit with 87km/h winds at 7.45pm on Sunday.
Mandurah's highest wind gust was 63km/h recorded at 9.40pm.
Since 9am on Sunday, 13.8mm of rain has fallen in Mandurah while 20.6mm has fallen in Rockingham.
There has been no reports of serious damage.
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