Cold outbreak for the southeast this weekend

15 August 2025
Pic: AgriShots
An article by  Jane Bunn - Jane's Weather

The hint of spring-like weather is being replaced by a surge of cold air from the south.

A cold outbreak will affect the southeast this weekend. Properly cold, with air coming up from near Antarctica. This will produce showers tending to areas of rain, wintry hail, low level snow and biting winds.

Meanwhile, conditions are looking quite pleasant from Sydney to Brisbane and further north, and over into the southwest. On the weekend the cold outbreak has just the southeast in its path.

You can see just how cold the air is by the large pool of speckled cloud over the Bight.

The satellite and radar at lunchtime on Friday.

The latest guidance shows that the second surge is likely to move across southeast SA, western Victoria and western NSW on Sunday - skipping Tasmania and eastern Victoria where it is cold but not as wet.

As we go into next week the cold pool (which you can think of as a ball of energy) interacts with moisture from the oceans to our east, producing a lengthy stretch of wet weather in eastern NSW and southeast Queensland.

So, the weekend is nice in eastern NSW and southeast Queensland, then it turns wet next week. While the weekend is cold and wintry in the southeast, before a stretch of frosty nights and sunny days next week.

In the west, the next big weather system arrives on Tuesday/Wednesday.

This is a feed of moisture from the Indian Ocean, running into strong low pressure, slowly moving and delivering widespread significant rain.

This weather pattern means that next week has the wet weather very focused on the east and west while it is dry in between.

However, in week two (beginning Monday, August 25), there are signs that the big system in the west could make its way into the southeast, so that is one to watch out for on the horizon.

Weekly rain potential shows a western system moving into the east in week two.

If you'd like to be guided through all of this and have 12 minutes to spare, please see my latest video:

 

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Jane’s Weather provides hyper local weather forecasting based on the consensus of all the weather models, using Machine Learning and AI to calibrate the forecast to conditions at your farm. We include updates on temperature, rain and wind, along with evapotranspiration for efficient water usage, frost risk, growing degree days and a detailed spraying forecast customised for any property in Australia. 

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