“This is unusual weather that could cause damage to homes and make travel dangerous,” he said.

The spokesman said significant wave heights exceeding 7 metres with periods of around 16 seconds are expected in some locations.

“This weather system will drive the development of large and powerful waves that will continue through Tuesday and Wednesday,” he said.

“Sustained heavy surf will develop along parts of the coast exposed to the west-southwest from late Monday night, with the potential for significant coastal erosion.

“Locations which may be affected include exposed coasts near Albany, Bunbury, Geraldton, Mandurah, Margaret River and Perth.“

Main Roads has had warned drivers to be careful on the wet roads following a number of accidents on Perth roads.

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