THE Lower West and Southwest districts have seen a powerful cold front make landfall this morning, with heavy rain, thunderstorms and wind gusts of up to 130km/h hitting coastal areas.
The first sign of the approaching front was along the far southwest coast, where wind speeds increased to 50-70km/h just after midnight. The winds in this region peaked in strength at around 4am, with a gust to 130 km/h at Cape Naturaliste as the front swept
Cape Naturaliste also saw a rapid 11 degree temperature drop, along with a torrential downpour of 15mm, both in the space of 10 minutes.
The heavy rain and winds then swept into Busselton at 5am, with a gust of 107km/h recoded and 6mm of rain in the space of 10 minutes. Rainfall rates of this magnitude and above are enough to cause flash flooding. By 7am the highest rainfall total in the state was 40mm at Capel.
Bunbury and Mandurah were next in line for a burst of heavy rain and wild winds as the front swept through. By 8am the line of heavy rain and storms were bashing the coast around Perth.
The worst of the weather through Perth is expected through the morning,
with winds and rain easing during the afternoon.