Severe Weather Forecast for Western Australia
This week, much of Western Australia is expected to experience thunderstorms, damaging winds, and hail, with some areas potentially receiving more than 50mm of rain by Thursday night.
Weather System and Rainfall
The cause of this severe weather is a trough and low-pressure system off the west coast, following a period of warm and sunny conditions earlier in the week. Regions south of Carnarvon may see up to 50 millimeters of rain over the next two days before the weather improves.
Recent Weather Patterns
The last month of spring in Western Australia has been varied, featuring warm nights and upcoming thunderstorms with lightning displays. Lightning storms began affecting areas south of Perth early Tuesday morning, accompanied by patchy shower bands. After a brief lull during the day, the storms returned overnight with increased intensity.
Background of the Stormy Weather
Over the preceding weekend, a trough developed along the west coast, bringing warm and pleasant weather to much of the state. It is important to note that the eastern side of a trough is favorable for thunderstorm development. On Monday, the sunny spell ended as a low-pressure system formed within this trough line, triggering the onset of stormy conditions.
One thing to note about troughs is that the eastern side of a trough line is a really good spot for thunderstorm development.
As a result, the region is transitioning from calm, sunny days to a more turbulent weather phase.
Summary
This weather system marks a shift toward stormier conditions, ending a brief period of warmth and setting the stage for significant rainfall and thunderstorms across Western Australia.
Author's summary: The final month of spring in Western Australia shifts from warm and sunny to stormy, with a trough and low-pressure system bringing heavy rain, thunder, and hail to the region.