Fairfax Media Network

Weather News

Strange weather caused by combination of factors

Thursday December 13, 2012 - 15:08 EDT

The Weather Bureau says this week's unseasonal downpours in Perth and the South West are being caused by a combination of factors, including near record sea surface temperatures.

In October, the ocean off the WA coast recorded the second warmest temperature since records began in 1900.

However, forecaster Neil Bennett says while the warm ocean is contributing to the high rainfall, it is not a significant factor.

"The temperatures over the ocean will help with the amount of moisture that they can release but the actual mechanism to make it rain is that weather pattern, the deep surface trough, the low pressure system at the surface and this mid level system moving in from the West," he said.

Mr Bennett says the bureau's predicting more storms today before the weather starts slowly clearing.

"There's going to be more shower and thunderstorm activity through the South West of the State, so still some showers and thunderstorms for the metro area and even some morning showers still around on Friday, before we finally start to see things returning to what I suppose you could call normal weather conditions for this time of the year."


- ABC

© ABC 2012

More breaking news

ABC News
Sydney Morning Herald
National Nine News
News Limited

Display Your Local Weather

Weather News

As much of Australia chills, Darwin sweats

18:00 EST

The cold fronts that have frozen southeastern Australia haven't had the gas to push far enough north to cool Darwin, with heat records for the NT capital.

Tips to stay warm in winter: Feeling cold is all about perception, health scientist says

13:26 EST

As residents in New South Wales emerge from under the rug after their , the question on the blue lips of many is what's the best way to stay warm? While many may feel their insides are rapidly chilling, Dr Ollie Jay from the University of Sydney said little was happening to our bodies internally and the cold was all due to "perception".

WA winter starting cold in south, warm in north

13:24 EST

So far this winter Western Australia has been divided, unseasonably cold in the south and hot in the north.