Up to 25mm of rain drenched Perth in 24 hours – but that’s nothing compared to the massive downpour on the horizon.
The Perth Hills have taken their heaviest rain as a cold front passed overnight, with 25.8mm falling in the Bickley lane.
The Swan Valley and Pearce in east Perth also recorded falls of more than 20mm. The Bureau of Meteorology said the heavy rain was part of a cloud band fed by tropical moisture in the north, bringing more rain than the usual front.
And there’s more to come.
The bureau has warned of even heavier rainfall today that could see some parts of the state surpass yesterday’s rain record in a single hour.
“One-hour totals of 25mm are possible, with six-hour totals of up to 60mm,” the bureau warned.
Midwest residents including Geraldton and Northampton, Northam and the Wheatbelt towns of Merredin, Moora and Wongan Hills are being warned to prepare for the wild conditions, which may include thunderstorms and flash flooding.
The huge band of rain is expected to move eastward later on Tuesday.
Perth has already recorded above-average rainfall in August, just over two weeks into the month.
As of Tuesday morning, the city had recorded 135.8mm of rain since early August, dwarfing the 122mm average
Up to 15mm of rain with up to 35mph winds is forecast for the city on Tuesday and a further 25mm of rain could be seen in Perth on Wednesday.
Perth has already smashed a four-year rainfall record thanks to storms earlier in the month, and with another 50.3mm it would break an all-time record for August.