Where did all of our rain come from? I even got a text message from RAC yesterday telling me there would be 40-60mm more rain than the forecast, which was a surprise to me because I've never received a weather alert before and I never signed up for them.
Moisture spinning off a tropical low west of Carnarvon. If you're going to get significant rain in southwest WA in summer that's a fairly typical scenario for it - rainbands from such causes are usually pretty narrow, as this one was, but Perth was just about ground zero for it.
Interesting that, even though January and February are the driest months of the year in average terms in Perth, all three 100+ daily totals in Perth have been in those months.
For those interested in the numbers, 2.1% of Australia (mostly in SA) was analysed as having its hottest February day on record yesterday, and 0.5% its coldest.
We here in WA like doing exactly the opposite to the rest of the country. It's our state motto.
I do recall one of those 100+mm days because it was the night before our USD rogaine back in January 2000 and it still bucketed down all through the event too, even though the stats say we only got 11mm on the night (in Perth anyway, we were a bit further inland).