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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 10:00 am EDT on Wednesday 12 November 2025
for the period until midnight EDT Sunday 16 November 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 high pressure ridge to the north is responsible for a broad westerly flow across the state. The high will move east overnight allowing a cold front to pass over Tasmania on Thursday followed by a southwesterly flow ahead of an approaching ridge of high pressure. The flow is expected to weaken and turn northerly on Friday as the ridge moves eastwards across the state and towards the Tasman Sea. A low pressure system over the southern mainland moves near Tasmania on Saturday with a series of cold fronts to follow through to early next week.

Derwent Estuary

Forecast for Wednesday 12 November until midnight

Winds: Northwesterly about 10 knots increasing to 10 to 15 knots in the middle of the day. Seas: Below 1 metre. Weather: Cloudy. 80% chance of showers.

Forecast for Thursday 13 November

Winds: Northwesterly 15 to 20 knots tending westerly in the morning. Seas: Below 1 metre. Weather: Cloudy. 95% chance of showers.

Forecast for Friday 14 November

Winds: West to southwesterly 10 to 15 knots turning south to southeasterly 15 to 20 knots during the afternoon then becoming variable about 10 knots during the evening. Seas: Around 1 metre. Weather: Cloudy.

Forecast for Saturday 15 November

Winds: North to northeasterly 10 to 15 knots turning east to southeasterly during the day then tending southeast to southwesterly during the afternoon. Seas: Below 1 metre. Weather: Partly cloudy.

Channel

Forecast for Wednesday 12 November until midnight

Winds: Northwesterly 15 to 20 knots. Seas: Below 1 metre. Weather: Cloudy. 90% chance of showers.

Forecast for Thursday 13 November

Strong Wind Warning for Thursday for Channel

Winds: Northwesterly 15 to 25 knots increasing to 20 to 30 knots in the early morning then tending westerly 15 to 25 knots in the morning. Seas: Around 1 metre, increasing to 1 to 2 metres during the afternoon. Weather: Cloudy. 95% chance of showers, with possible small hail.

Forecast for Friday 14 November

Winds: Westerly 15 to 20 knots tending southwesterly during the day then becoming variable about 10 knots during the evening. Seas: 1 to 1.5 metres. Weather: Cloudy.

Forecast for Saturday 15 November

Winds: North to northeasterly about 10 knots tending south to southeasterly 10 to 15 knots during the afternoon then turning west to southwesterly below 10 knots during the evening. Seas: Below 1 metre. Weather: Partly cloudy.

Storm Bay

Forecast for Wednesday 12 November until midnight

Winds: Northwesterly 15 to 20 knots. Seas: Below 1 metre. Weather: Cloudy. 80% chance of showers.

Forecast for Thursday 13 November

Strong Wind Warning for Thursday for Storm Bay

Winds: Northwesterly 15 to 25 knots tending westerly in the morning. Winds may reach up to 30 knots at times. Seas: Around 1 metre, increasing to 1 to 1.5 metres during the morning, then increasing to 1.5 to 2 metres during the afternoon. Weather: Cloudy. 95% chance of showers, with possible small hail in the afternoon and evening.

Forecast for Friday 14 November

Winds: Westerly 15 to 20 knots turning south to southwesterly during the day then becoming variable about 10 knots during the evening. Seas: 1 to 2 metres. Weather: Cloudy.

Forecast for Saturday 15 November

Winds: Northerly 10 to 15 knots shifting southerly during the afternoon. Seas: Below 1 metre. Weather: Partly cloudy.

Frederick Henry Bay and Norfolk Bays

Forecast for Wednesday 12 November until midnight

Winds: Northwesterly 15 to 20 knots. Seas: Below 1 metre. Weather: Cloudy. 70% chance of showers.

Forecast for Thursday 13 November

Winds: Northwesterly 15 to 25 knots tending westerly in the morning. Seas: Below 1 metre, increasing to 1 to 1.5 metres during the morning. Weather: Cloudy. 95% chance of showers, with possible small hail in the afternoon and evening.

Forecast for Friday 14 November

Winds: West to southwesterly 15 to 20 knots turning south to southeasterly during the afternoon then becoming variable about 10 knots during the evening. Seas: Around 1 metre. Weather: Cloudy.

Forecast for Saturday 15 November

Winds: Northerly 10 to 15 knots shifting southerly during the evening. Seas: Below 1 metre. Weather: Partly cloudy. 50% chance of showers.

The next routine forecast will be issued at 4:05 pm 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.