Forecast issued at 4:40 pm EST on Monday 1 September 2014.
A cold front is crossing Bass Strait today and was lying near Wilsons Promontory at 1600. The front is expected to reach Gabo island about midnight. A high pressure system will cross the Bight on Tuesday and will be centred near Adelaide Tuesday night then move over NSW on Wednesday with a ridge southwards across Victoria to western Bass Strait. This ridge will move to eastern Bass Strait on Thursday and a small low pressure system will then move northeastwards from the Bight across eastern South Australia on Thursday then over northern NSW on Friday. Another high pressure system will then move from Bight waters across Tasmania on Friday.
Forecast for Monday until midnight
- West to southwesterly 10 to 15 knots, reaching 20 knots at times.
Tuesday 2 September
- Westerly 10 to 15 knots turning south to southwesterly 15 to 20 knots in the morning then tending west to southwesterly 10 to 15 knots in the evening.
- The chance of thunderstorms from the late morning until evening with possible hail.
Wednesday 3 September
- West to southwesterly 10 to 15 knots tending south to southwesterly in the middle of the day then becoming variable about 10 knots in the evening.
Thursday 4 September
- West to northwesterly below 10 knots becoming east to southeasterly during the morning then becoming north to northeasterly during the evening.
Friday 5 September
- North to northeasterly below 10 knots becoming east to southeasterly during the morning.
Please be awareWind gusts can be 40 percent stronger than the averages given here, and maximum waves may be up to twice the height.
The next routine forecast will be issued at 5:10 am EST Tuesday.