Last month of spring to deliver a drenching across WA

Severe Weather Expected Across Western Australia

A strong weather system is set to affect much of Western Australia this week, bringing thunderstorms, damaging winds, hail, and heavy rain. Some regions could see rainfall exceeding 50 millimetres by Thursday night.

Details of the Weather System

The severe conditions are caused by a trough and a low-pressure system located off the west coast. Earlier in the week, these systems brought warm and sunny weather to the area.

Areas south of Carnarvon may experience up to 50 mm of rain over the next two days before the skies clear.

Spring Weather Variability

The final month of spring has delivered a wide range of weather in Western Australia, shifting from warm, calm nights to thunderstorms and lightning displays in the coming days.

Recent Storm Activity

Lightning storms began striking regions south of Perth early Tuesday morning, accompanied by scattered showers. After a brief pause during the day, the storms returned overnight with increased intensity.

One thing to note about troughs is that the eastern side of a trough line is a really good spot for thunderstorm development, and on Monday, we saw the end of our sunny run as a low-pressure system formed within that line.

Background on the Weather Pattern

The stormy conditions are a result of a trough that developed along the west coast over the weekend, initially bringing warm weather to large parts of the state.

Summary

This spring’s last month in Western Australia is marked by dynamic weather shifts, from warm conditions to severe storms fueled by an evolving low-pressure system near the coast.

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Australian Broadcasting Corporation Australian Broadcasting Corporation — 2025-11-05

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