Australian Government

Bureau of Meteorology


Coastal Waters Forecast 

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IDT12410

Australian Government Bureau of Meteorology
Tasmania

Local Waters Forecast for South East Inshore

Issued at 4:05 pm EDT on Tuesday 18 February 2025
for the period until midnight EDT Saturday 22 February 2025.

Please be aware
Wind 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.

Warning Information

For latest warnings go to www.bom.gov.au, subscribe to RSS feeds, call 1300 659 210* or listen for warnings on relevant TV and radio broadcasts.

Weather Situation

A southwesterly airstream is expected to persist throughout Wednesday, as high builds in the Bight, ridging out over Tasmania on Thursday, before moving into the Tasman Sea on Friday. A low forms south of the Bight on Friday, approaching with a cold front on Saturday.

Derwent Estuary

Forecast for Tuesday 18 February until midnight

Winds: Southwesterly 15 to 20 knots turning westerly below 10 knots in the late evening. Seas: 1 to 1.5 metres, decreasing to 1 metre by early evening. Weather: Cloudy.

Forecast for Wednesday 19 February

Winds: Westerly 15 to 20 knots turning southwesterly in the early afternoon. Seas: Below 1 metre. Weather: Partly cloudy. 50% chance of showers.

Forecast for Thursday 20 February

Winds: Westerly 10 to 15 knots. Seas: Below 1 metre. Weather: Partly cloudy.

Forecast for Friday 21 February

Winds: West to northwesterly below 10 knots becoming east to northeasterly during the morning then becoming southeasterly during the day. Seas: Below 1 metre. Weather: Mostly sunny.

Forecast for Saturday 22 February

Winds: North to northwesterly below 10 knots tending north to northeasterly 10 to 15 knots during the morning. Seas: Below 1 metre. Weather: Mostly sunny.

Channel

Forecast for Tuesday 18 February until midnight

Winds: Southwesterly 15 to 25 knots turning westerly 10 to 15 knots in the late evening. Seas: 1 to 2 metres. Weather: Cloudy.

Forecast for Wednesday 19 February

Strong Wind Warning for Wednesday for Channel

Winds: West to northwesterly 15 to 25 knots turning southwesterly 20 to 30 knots in the afternoon then decreasing to 15 to 25 knots in the evening. Seas: 1 to 1.5 metres, decreasing below 1 metre during the morning, then increasing to 1 to 2 metres around midday. Weather: Cloudy. 80% chance of showers.

Forecast for Thursday 20 February

Winds: Westerly 15 to 20 knots decreasing to about 10 knots in the late evening. Seas: 1 to 1.5 metres, decreasing to 1 metre during the morning. Weather: Cloudy.

Forecast for Friday 21 February

Winds: North to northwesterly about 10 knots becoming east to southeasterly during the day. Seas: Below 1 metre. Weather: Partly cloudy.

Forecast for Saturday 22 February

Winds: Northerly about 10 knots tending northeasterly 15 to 20 knots during the day. Seas: Below 1 metre. Weather: Mostly sunny.

Storm Bay

Forecast for Tuesday 18 February until midnight

Strong Wind Warning for Tuesday for Storm Bay

Winds: Southwesterly 25 to 30 knots decreasing to 15 to 25 knots in the evening. Seas: 2 to 2.5 metres. Weather: Cloudy.

Forecast for Wednesday 19 February

Strong Wind Warning for Wednesday for Storm Bay

Winds: Westerly 15 to 25 knots tending southwesterly 20 to 30 knots in the late afternoon then decreasing to 15 to 25 knots in the evening. Seas: 1.5 metres, decreasing to 1 metre during the morning, then increasing to 1 to 2 metres around midday. Weather: Partly cloudy. 70% chance of showers.

Forecast for Thursday 20 February

Winds: West to southwesterly 15 to 20 knots decreasing to about 10 knots in the late evening. Seas: 1 to 2 metres, decreasing to 1 metre during the morning. Weather: Cloudy.

Forecast for Friday 21 February

Winds: West to northwesterly about 10 knots becoming east to southeasterly during the day. Seas: Below 1 metre. Weather: Partly cloudy.

Forecast for Saturday 22 February

Winds: Northerly 10 to 15 knots turning northeasterly 15 to 20 knots during the morning. Seas: Below 1 metre, increasing to 1 to 1.5 metres during the afternoon or evening. Weather: Mostly sunny.

Frederick Henry Bay and Norfolk Bays

Forecast for Tuesday 18 February until midnight

Strong Wind Warning for Tuesday for Frederick Henry Bay and Norfolk Bay

Winds: Southwesterly 20 to 30 knots decreasing to 15 to 25 knots in the evening. Seas: 1.5 to 2.5 metres. Weather: Cloudy.

Forecast for Wednesday 19 February

Winds: Westerly 15 to 20 knots tending southwesterly in the early afternoon. Seas: 1 to 1.5 metres, decreasing below 1 metre during the morning, then increasing to 1 to 1.5 metres during the afternoon. Weather: Partly cloudy. 60% chance of showers.

Forecast for Thursday 20 February

Winds: West to southwesterly 15 to 20 knots decreasing to about 10 knots in the late evening. Seas: 1 to 1.5 metres, decreasing to 1 metre during the morning. Weather: Partly cloudy.

Forecast for Friday 21 February

Winds: West to northwesterly below 10 knots becoming east to southeasterly during the day then becoming northeasterly during the evening. Seas: Below 1 metre. Weather: Mostly sunny.

Forecast for Saturday 22 February

Winds: North to northeasterly about 10 knots increasing to 15 to 20 knots during the morning. Seas: Below 1 metre. Weather: Mostly sunny.

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

* Calls to 1300 number cost around 27.5c inc. GST, higher from mobiles or public phones. Marine forecasts are also available on VHF and HF radio. View the radio schedule on www.bom.gov.au/marine

Check the latest Coastal Waters Forecast or Local Waters Forecast at http://www.bom.gov.au/tas/forecasts/map.shtml for information on wind, wave and weather conditions for these coastal zones.