Whilst southeastern Australia is set to shiver this week, another round of wet weather is set to impact the South West Land Division of WA, including Perth.

A low pressure system in the Indian Ocean is set to deepen over the next 24 hours, before drifting in a southeasterly direction towards the Western Australian coast.

A frontal system will extend north from this low, with a band of showers, rain periods, and isolated thunderstorms expected to impact the western Pilbara and Gascoyne coasts during Wednesday morning, extending into the South West Land Division.

Widespread falls of 5-15mm will be possible on Wednesday, with isolated falls of 20-30mm possible for some locations.

Late Wednesday night into Thursday morning, the low will approach parts of the South West District with a stronger band of heavy showers and thunderstorms. Locally damaging wind gusts are also expected to develop for this region, particularly for areas from Mandurah – Bunbury – Busselton – Augusta. Gusts of up to 90km/h will be possible, particularly with any thunderstorm activity.

This second band of activity may produce another 10-20mm, with isolated falls approaching 30mm for some locations.

Image 1: EC wind gusts 3am Thursday 10/06/2021. Image via Windy.com

low-and-severe-windsImage 2: BoM forecast rainfall for Wednesday and Thursday 9/06/2021 – 10/06/2021.

bom-rainfall-forecast

 

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