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Coastal Waters Forecast 

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IDT12331

Australian Government Bureau of Meteorology
Tasmania

Coastal Waters Forecast for Tasmania
Eastern Zones: Northern Tip of Flinders Island to Tasman Island

Issued at 4:05 pm EST on Wednesday 4 August 2021
for the period until midnight EST Saturday 7 August 2021.

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 low pressure system well off the east coast, produces a southwesterly flow over Tasmania as it retreats eastwards into the Tasman Sea. Winds tend more westerly on Thursday after a cold front brushes by the south on Wednesday night. The westerly flow continues until a weak cold front crosses the state on Saturday afternoon, followed by a ridge of high pressure extending from a high over eastern Australia.

East of Flinders Island: Northern Tip of Flinders Island to St Helens Point

Forecast for Wednesday 4 August until midnight

Strong Wind Warning for Wednesday for East of Flinders Island

Winds: West to southwesterly 15 to 25 knots, reaching up to 30 knots offshore in the evening. Seas: Around 1 metre, increasing to 2 to 3 metres offshore. 1st Swell: Southerly below 1 metre inshore, increasing to 1 to 2 metres offshore. 2nd Swell: East to southeasterly 1 to 1.5 metres. Weather: Partly cloudy.

Forecast for Thursday 5 August

Strong Wind Warning for Thursday for East of Flinders Island

Winds: Southwesterly 15 to 20 knots, reaching up to 30 knots offshore in the north during the day. Winds turning westerly in the late morning. Seas: 2 to 3 metres. 1st Swell: Southerly 1 to 2 metres, decreasing to 1 to 1.5 metres around midday, then to around 1 metre by early evening. 2nd Swell: Southeasterly around 1 metre. Weather: Partly cloudy.

Forecast for Friday 6 August

Winds: Westerly 20 to 30 knots. Seas: 1 to 1.5 metres, increasing to 2 to 3 metres offshore. Swell: Southeast to southwesterly around 1 metre inshore, increasing to 1 to 1.5 metres offshore by early evening. Weather: Partly cloudy.

Forecast for Saturday 7 August

Winds: Westerly 20 to 30 knots turning south to southwesterly 15 to 25 knots during the evening. Seas: 1.5 to 2.5 metres. Swell: Southerly 1 to 1.5 metres, decreasing to around 1 metre during the afternoon. Weather: Partly cloudy. 50% chance of showers.

Banks Strait and Franklin Sound

Forecast for Wednesday 4 August until midnight

Strong Wind Warning for Wednesday for Banks Strait and Franklin Sound

Winds: Westerly 15 to 25 knots, reaching up to 30 knots in the evening. Seas: 1.5 to 2.5 metres. Swell: East to southeasterly around 1 metre. Weather: Partly cloudy.

Forecast for Thursday 5 August

Strong Wind Warning for Thursday for Banks Strait and Franklin Sound

Winds: West to southwesterly 15 to 25 knots, reaching up to 30 knots in the evening. Seas: 1 to 2 metres, decreasing to 1 to 1.5 metres during the morning, then increasing to 1.5 to 2.5 metres around midday. Swell: East to southeasterly around 1 metre. Weather: Partly cloudy.

Forecast for Friday 6 August

Winds: Westerly 20 to 30 knots decreasing to 15 to 25 knots in the early afternoon. Seas: 1.5 to 2.5 metres. Swell: Northwest to southwesterly below 1 metre. Weather: Partly cloudy.

Forecast for Saturday 7 August

Winds: Westerly 20 to 30 knots turning southerly 15 to 20 knots during the evening. Seas: 1 to 2 metres. Swell: Northwest to southwesterly below 1 metre. Weather: Partly cloudy.

Upper East Coast: St Helens Point to Wineglass Bay

Forecast for Wednesday 4 August until midnight

Strong Wind Warning for Wednesday for Upper East Coast

Winds: Southwesterly 15 to 25 knots, reaching up to 30 knots offshore in the evening. Seas: 2 to 3 metres. 1st Swell: Easterly 1.5 to 2 metres. 2nd Swell: Southerly below 1 metre inshore, increasing to 1 to 1.5 metres offshore later in the evening. Weather: Partly cloudy.

Forecast for Thursday 5 August

Strong Wind Warning for Thursday for Upper East Coast

Winds: Southwesterly 15 to 20 knots, reaching up to 30 knots offshore early in the morning. Winds tending westerly in the morning. Seas: 2 to 3 metres, decreasing to 1 to 2 metres during the morning. 1st Swell: Southerly 1 to 2 metres, decreasing to 1 to 1.5 metres during the morning. 2nd Swell: East to southeasterly around 1 metre. Weather: Partly cloudy.

Forecast for Friday 6 August

Winds: Westerly 15 to 20 knots. Seas: Below 1 metre, increasing to 1 to 1.5 metres offshore. Swell: South to southwesterly 1 to 1.5 metres, increasing to 1.5 to 2.5 metres around midday, then tending southerly 2 to 3 metres by early evening. Weather: Partly cloudy.

Forecast for Saturday 7 August

Winds: West to northwesterly 15 to 25 knots turning southwesterly 20 to 30 knots during the afternoon. Seas: Around 1 metre, increasing to 1.5 to 2.5 metres during the morning. Swell: Southerly 2 to 3 metres, decreasing to 1 to 2 metres during the morning. Weather: Partly cloudy.

Lower East Coast: Wineglass Bay to Tasman Island

Forecast for Wednesday 4 August until midnight

Strong Wind Warning for Wednesday for Lower East Coast

Winds: Southwesterly 15 to 20 knots increasing to 20 to 30 knots early evening. Seas: 2 to 3 metres. 1st Swell: South to southwesterly below 1 metre inshore, increasing to 1 to 2 metres offshore by early evening. 2nd Swell: Easterly 1 to 1.5 metres inshore, increasing to 1.5 to 2 metres offshore. Weather: Cloudy. 70% chance of showers.

Forecast for Thursday 5 August

Strong Wind Warning for Thursday for Lower East Coast

Winds: Southwesterly 20 to 25 knots, reaching up to 30 knots during the morning. Winds turning westerly 15 to 25 knots during the morning. Seas: 2 to 3 metres, decreasing to 1 to 2 metres during the morning. 1st Swell: South to southwesterly 1 to 2 metres, increasing to 2 to 3 metres during the morning. 2nd Swell: Easterly around 1 metre. Weather: Cloudy.

Forecast for Friday 6 August

Winds: Westerly 20 to 30 knots. Seas: 1.5 to 2.5 metres. Swell: South to southwesterly 2 to 4 metres, increasing to 4 to 6 metres during the morning. Weather: Cloudy. 50% chance of showers.

Forecast for Saturday 7 August

Winds: West to northwesterly 20 to 30 knots turning southwesterly during the afternoon. Seas: 1.5 to 2.5 metres. Swell: Southwesterly 4 to 6 metres, decreasing to 2 to 4 metres during the morning. Weather: Cloudy. 70% chance of showers.

South East Coast: Tasman Island to South East Cape

Forecast for Wednesday 4 August until midnight

Strong Wind Warning for Wednesday for South East Coast

Winds: Southwesterly 25 to 30 knots. Seas: 2 to 3 metres. 1st Swell: Southwesterly 1.5 metres, increasing to 1.5 to 2 metres by early evening. 2nd Swell: East to northeasterly 1 to 1.5 metres. Weather: Cloudy. 50% chance of showers.

Forecast for Thursday 5 August

Gale Warning for Thursday for South East Coast

Winds: Southwesterly 25 to 30 knots turning westerly 20 to 30 knots during the morning. Winds reaching up to 35 knots in the late evening. Seas: 2 to 3 metres. 1st Swell: Southwesterly 2 to 3 metres, increasing to 3 to 4 metres around midday. 2nd Swell: Easterly 1 to 1.5 metres, decreasing to around 1 metre during the morning. Weather: Cloudy. 60% chance of showers.

Forecast for Friday 6 August

Winds: Westerly 25 to 35 knots decreasing to 25 to 30 knots in the late afternoon. Seas: 2.5 to 4 metres. Swell: Southwesterly 4 to 7 metres. Weather: Cloudy. 80% chance of showers.

Forecast for Saturday 7 August

Winds: Westerly 25 to 35 knots turning southwesterly 20 to 30 knots during the day. Seas: 2 to 3 metres. Swell: Southwesterly 5 to 7 metres, decreasing to 4 to 5 metres during the afternoon or evening. Weather: Cloudy. 80% chance of showers.

South West Coast: South East Cape to Low Rocky Point

Forecast for Wednesday 4 August until midnight

Strong Wind Warning for Wednesday for South West Coast

Winds: Southwesterly 20 to 30 knots decreasing to 20 to 25 knots late evening. Seas: 2 to 2.5 metres. 1st Swell: Southwesterly near 2 metres, increasing to 2 to 3 metres by early evening. 2nd Swell: Easterly around 1 metre. Weather: Cloudy.

Forecast for Thursday 5 August

Gale Warning for Thursday for South West Coast

Winds: Southwesterly 20 to 25 knots turning westerly 20 to 30 knots before dawn. Winds reaching up to 35 knots in the late evening. Seas: 2 to 3 metres. Swell: Southwesterly near 3 metres, increasing to 3 to 4 metres during the morning, then tending westerly 4 metres by early evening. Weather: Cloudy. 60% chance of showers.

Forecast for Friday 6 August

Winds: Westerly 25 to 35 knots decreasing to 20 to 30 knots in the morning. Seas: 2 to 4 metres. Swell: Westerly 4 to 5 metres, tending southwesterly 6 to 7 metres during the morning. Weather: Cloudy. 80% chance of showers.

Forecast for Saturday 7 August

Winds: Westerly 25 to 35 knots turning southwesterly 20 to 30 knots during the day then decreasing to 15 to 20 knots during the evening. Seas: 2 to 3 metres, decreasing below 1.5 metres during the evening. Swell: Southwesterly 5 to 7 metres, decreasing to 5 metres during the evening. Weather: Cloudy. 90% chance of showers.

The next routine forecast will be issued at 5:00 am EST Thursday.

* Calls to 1300 numbers cost around 27.5c incl. 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 Forecasts for information on wind, wave and weather conditions for neighbouring coastal zones.