The next big system is hitting WA, with a little rain to arrive in the southeast on Saturday to Monday

The wild weather from the East Coast Low is easing as the beast moves away from the shore... and instead our focus shifted to the west, where another big system delivered impressive rainfall totals as it passed through later Wednesday into Thursday.

Widespread falls, near the coast and spreading well inland, with a particularly heavy spot between Margaret River and Busselton, where severe thunderstorms passed through. There were rainfall rates of 75mm in just 3 hours in these intense storms.

This weather system was a strong cold front, driven by a deep low, located well to the south (not like the system off NSW). This front's trajectory 'peaked' over the west, delivering the most power (and rain) there.

The low is likely to weaken as it crosses the Bight, arriving just off SA on Saturday.

To put it in comparison, the NSW low had a centre of 986hPa when it was just off the coast on Tuesday/Wednesday. This next low was around 1007hPa when it was south of the southwest corner... and when it reaches SA it should be above 1010hPa.

The cold front was strong as it crossed the west, and it's almost non-existent by the time it reaches the southeast.

This all means that the southeast won't see the severe weather of the west, limited winds, and not as much rain, as it passes through from Saturday to Monday. Some parts may see 10 to 20 mm, but there is nothing big like in the west:

This system is essentially sliding across the southeast because high pressure is blocking its path.

But it does do something good... it lays the groundwork for the next one to have a better shot.

That begins next Tuesday, a cold outbreak that should continue through to the end of the week. A series of cold fronts passing through, with a trajectory that has them peaking in the southeast.

I've included a layer called "thickness" in these maps, to show how cold the air is - converted into how low the snow should fall, with about 1000 metres as its coldest part.

This rain should add up more for the areas that do well in a westerly, but with cold outbreak comes cold nights to follow once the next high moves in - potentially right up into Queensland next weekend.