A devastating cold front has stormed through the South-West of WA packing 125km/h winds and bringing showers and isolated thunderstorms.
However, Bureau of Meteorology (BoM) forecasters predict the warm weather will return in time for Mother’s Day this Sunday.
“As we go into the back end of the week the fronts move away from Western Australia and are replaced with a high-pressure system which is why the rain will then drop off,” BoM spokesman Neil Bennett says.
Mr Bennet says a negative Indian Ocean Dipole (IOD) is likely to be set up during the winter months causing increased rainfall through Southern Australia.
The IOD is the difference in sea surface temperature between the west and east tropical Indian Ocean.
Ocean waters off the coast of eastern Australia are currently warmer than average, causing an influx of moisture in Western Australia’s weather systems.
In the past six days, Perth has recorded 22mm of rainfall.
According to Mr Bennett, this particular type of storm will only occur once or twice a year, but the winter fronts and deep low-pressure systems are common throughout the season.
DRY, HOT SPRING
But in April, the BoM recorded just 13mm of rainfall in the Perth metro area.
“Last April was one of the warmest months on record across the planet,” Mr Bennett says.
Temperatures will pick up again toward the weekend, but forecasters say they doubt that they will reach the high 29C from last week.
“We are looking at temperatures from Sunday to get into the low to mid 20’s, so 23C on Sunday for Mother’s Day and 25C on Tuesday,” Mr Bennett says.