Derwent Estuary Forecast

View the current warnings for Tasmania

Forecast issued at 4:05 pm EDT on Tuesday 19 January 2021.

Weather Situation

A high pressure system to the west extends a ridge over the state this evening. The ridge weakens on Wednesday as a trough forms over the state during the day, but redevelops over Tasmania as high pressure builds to the northeast in the evening. A weak trough from the mainland extends over Tasmania during Thursday with westerly winds establishing over the state on Friday. An embedded cold front passes the south of the state on Friday afternoon while a high pressure system forms to the northwest. The high extends a ridge over Bass Strait during Saturday.

Forecast for Tuesday until midnight

Winds
Southwesterly 15 to 20 knots decreasing to 10 to 15 knots later in the evening.
Seas
1 to 1.5 metres.
Weather
Partly cloudy.

Wednesday 20 January

Winds
West to northwesterly 5 to 15 knots shifting southeasterly 10 to 20 knots in the middle of the day then becoming variable about 10 knots in the evening.
Seas
Below 1 metre, increasing to up to 1 metre during the afternoon.
Weather
Sunny.

Thursday 21 January

Winds
Variable about 10 knots becoming southeasterly 10 to 15 knots in the early afternoon then becoming variable below 10 knots in the late evening.
Seas
Below 1 metre.
Weather
Mostly sunny.

Friday 22 January

Winds
Northwesterly about 10 knots tending westerly 15 to 20 knots during the morning then decreasing to about 10 knots during the evening.
Seas
Below 1 metre.
Weather
Partly cloudy.

Saturday 23 January

Winds
North to northwesterly below 10 knots becoming west to southwesterly during the day.
Seas
Below 1 metre.
Weather
Partly cloudy.

Please be awareWind and wave forecasts are averages. Wind gusts can be 40 per cent stronger than the forecast, and stronger still in squalls and thunderstorms. Maximum waves can be twice the forecast height.

The next routine forecast will be issued at 5:00 am EDT Wednesday.

Product IDT12420