Forecast issued at 4:06 pm EST on Wednesday 30 July 2014.
A very deep low pressure system well south of the Bight is slowly moving east, with a series of active cold fronts and troughs to cross Tasmania this week, with associated, secondary lows passing to the south of the state. A vigorous west to northwesterly stream will persist through to early Friday when another cold front will see winds shift very cold southwesterly, then gradually ease through Friday and Saturday as a high crosses the Bight. This high will extend a ridge over Tasmania Saturday night as it moves over western New South Wales Saturday night. The ridge will then move away to the east Sunday morning, with another cold front to then approach from the west in the evening.
Forecast for Wednesday until midnight
Strong Wind Warning for Wednesday for Channel
- Northwesterly 15 to 25 knots increasing to 20 to 30 knots in the evening.
- Around 1 metre.
- Isolated thunderstorms.
Thursday 31 July
Strong Wind Warning for Thursday for Channel
- Northwest to southwesterly 15 to 25 knots tending northwest to northeasterly in the middle of the day then becoming northwesterly 20 to 30 knots in the evening.
- Around 1 metre, increasing to 1 to 1.5 metres later in the evening.
- Isolated thunderstorms early in the morning and again during the evening. Possible hail during the evening.
Friday 1 August
- Northwesterly 20 to 30 knots turning southwesterly in the early afternoon.
- Around 1 metre, increasing to 1 to 2 metres during the morning, then increasing to 2 to 3 metres during the afternoon.
Saturday 2 August
- Westerly 15 to 20 knots tending southwesterly 10 to 15 knots during the day then turning west to northwesterly below 10 knots during the afternoon.
- 1 to 1.5 metres, decreasing to 1 metre during the morning.
Sunday 3 August
- North to northwesterly about 10 knots.
- Below 0.5 metres.
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 Thursday.