WA News

Was a cyclone to blame for Perth's rainy day?

Want to know why Perth got such a soaking on Wednesday?  Milli Vanilli would say blame it on the rain, but that would be too obvious.

According to Oz Cyclone Chasers, you should blame it on the 'mid-latitude' cyclone that's made landfall around Geraldton.

Perth had 13.8mm of rain on Wednesday.
Perth had 13.8mm of rain on Wednesday. Photo: Rob Homer

The weather website said unlike its tropical counterpart, a mid-latitude cyclone harbours most of its wild weather away from its centre, and one look at satellite images of Perth shows lashings of rain over the city with the eye of the storm further north.

"Wind gusts up to 40 knots have been recorded on Rottnest Island west of Perth while Geraldton itself - ground zero - has had winds up to 37 knots.

"Winds are expected to drop a few hours after landfall this evening and by tomorrow much of the rain and winds associated with this system should have cleared eastwards and weakened. 

"An event like this is very rare for this time of year across Western Australia."

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The Bureau of Meteorology's latest weather observations show 13.8mm of rain fell in Perth since 9am Wednesday with Gosnells copping a soaking with 18mm and Karnet going one better with 19mm.

The mid-latitude cyclone hit Geraldton but dumped most of its rain on Perth.
The mid-latitude cyclone hit Geraldton but dumped most of its rain on Perth. Photo: Oz Cyclone Chasers

But don't worry - Perth's topsy-turvy weather is forecast to swing back to sunny on Friday after spells of sunshine on Thursday.

Perth 7-day forecast:

Thursday - 10, 22, cloud clearing

Friday - 11, 28, sunny

Saturday - 14, 28, mostly sunny

Sunday - 13, 22, partly cloudy

Monday - 10, 23, mostly sunny

Tuesday - 11, 27, sunny

Wednesday - 15, 30, sunny

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