Forecast updated at 7:13 pm EST on Thursday 29 September 2016.
A deep, complex low pressure system south of Adelaide is expected to move over South Australia and Victoria tonight. A low to the west of the state extends a trough across Tasmania. Several low centres will develop on this trough as it crosses Tasmania tonight, with the trough and low centres expected to lie near the south coast on Friday. These lows will weaken during Saturday, with a westerly flow across the state. Winds turn northerly on Sunday ahead of a cold front crossing the state early on Monday.
Forecast for Thursday until midnight
Strong Wind Warning for Thursday for Channel
- Easterly 20 to 30 knots tending east to northeasterly 15 to 25 knots in the evening.
- 1 to 2 metres.
- Cloudy. 90% chance of rain.
Friday 30 September
- Easterly 20 to 30 knots decreasing to 15 to 25 knots before dawn then becoming variable about 10 knots in the late afternoon.
- 1 to 2 metres, decreasing below 1 metre during the afternoon.
- Cloudy. 95% chance of rain. Rain heavy at times in the early morning. The chance of a thunderstorm.
Saturday 1 October
- North to northwesterly 10 to 15 knots tending southeast to southwesterly in the middle of the day, then northwest to southwesterly 15 to 20 knots in the evening.
- Below 1 metre.
- Partly cloudy. 40% chance of showers in the afternoon and evening.
Sunday 2 October
- Northwest to northeasterly 15 to 20 knots tending northeast to southeasterly during the day, then northwest to northeasterly 10 to 15 knots during the evening.
- Around 1 metre.
- Partly cloudy. 80% chance of showers.
Monday 3 October
- North to northeasterly 10 to 15 knots turning northwesterly 15 to 20 knots during the morning then increasing to 20 to 30 knots during the evening.
- Below 1 metre, increasing to around 1 metre during the afternoon.
- Cloudy. 90% chance of showers.
Please be awareWind gusts can be 40 percent stronger than the averages given here, and maximum waves may be up to twice the height. Wind warnings are issued for today and tomorrow and describe the highest category of wind warning for that day.
The next routine forecast will be issued at 5:00 am EST Friday.