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Coastal Waters Forecast 

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IDT12330

Australian Government Bureau of Meteorology
Tasmania

Coastal Waters Forecast for Tasmania
Northern Zones: Sandy Cape to St Helens Point

Issued at 4:05 pm EDT on Thursday 21 October 2021
for the period until midnight EDT Sunday 24 October 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 high centred near New Zealand and an approaching trough and cold front are directing a locally warm north to northeasterly flow over Tasmania. The trough will slowly cross Tasmania during Friday with winds to tend light and variable later as the cold front approaches the west. The front will cross Tasmania Saturday morning, as winds tend southerly, with a high to slowly move south of the Bight during the day. The high will move to the west of Tasmania during Sunday as a low deepens to the east of the state and the southerly flow continues.

Far North West Coast: Sandy Cape to Stanley

Forecast for Thursday 21 October until midnight

Winds: Northeasterly 10 to 20 knots, reaching up to 25 knots south of King Island until early evening although lighter and more variable west of King Island. Seas: 1 to 1.5 metres, increasing to 1.5 to 2.5 metres south of King Island. Swell: Southwesterly below 1 metre. Weather: Partly cloudy.

Forecast for Friday 22 October

Winds: Northeasterly 10 to 20 knots, reaching up to 25 knots inshore in the south before dawn, shifting south to southwesterly 10 to 15 knots during the morning and early afternoon then tending south to southeasterly late evening. Seas: 1 to 1.5 metres, decreasing to 1 metre during the morning. 1st Swell: Southwesterly below 1 metre, increasing to 1 to 1.5 metres south of King Island during the morning. 2nd Swell: Easterly around 1 metre. Weather: Cloudy. 90% chance of showers east of King Island, 50% chance elsewhere.

Forecast for Saturday 23 October

Winds: South to southwesterly 10 to 20 knots increasing to 15 to 25 knots in the morning then to 20 to 30 knots near midday. Seas: Around 1 metre, increasing to 1 to 1.5 metres during the morning, then to 1.5 to 2.5 metres around midday. 1st Swell: West to southwesterly 1 to 1.5 metres, increasing to 2 to 3 metres during the morning. 2nd Swell: Easterly below 1 metre, increasing to around 1 metre east of King Island. Weather: Partly cloudy. 80% chance of showers. The chance of a thunderstorm east of King Island in the early morning.

Forecast for Sunday 24 October

Winds: Southerly 20 to 30 knots. Seas: 1.5 to 2.5 metres. Swell: Southwesterly 1 to 2 metres, increasing to 2.5 to 3 metres south of King Island. Weather: Partly cloudy. 70% chance of showers.

Central North Coast: Stanley to Northern Tip of Flinders Island

Forecast for Thursday 21 October until midnight

Winds: East to northeasterly 15 to 20 knots. Seas: Around 1 metre. Swell: Northeasterly below 0.5 metres. Weather: Partly cloudy.

Forecast for Friday 22 October

Winds: East to northeasterly 15 to 20 knots decreasing to 10 to 15 knots in the afternoon. Seas: 1 to 1.5 metres, decreasing to 1 metre from midday. Swell: Northeasterly below 1 metre. Weather: Partly cloudy. 60% chance of showers.

Forecast for Saturday 23 October

Winds: Northeast to southeasterly 5 to 15 knots tending variable in the morning, southeast to southwesterly 10 to 20 knots in the afternoon, then increasing to 15 to 25 knots in the evening. Seas: Around 1 metre. Swell: Northeasterly below 1 metre. Weather: Cloudy. 95% chance of showers. The chance of a thunderstorm inshore in the afternoon and early evening.

Forecast for Sunday 24 October

Winds: Southwesterly 15 to 25 knots turning southerly during the evening. Seas: Below 1 metre, increasing to 1 to 2 metres offshore. Swell: West to northwesterly below 1 metre inshore, increasing to 1 to 1.5 metres offshore during the morning. Weather: Partly cloudy. 60% chance of showers.

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

Forecast for Thursday 21 October until midnight

Winds: Northeasterly 10 to 20 knots, reaching up to 25 knots offshore late evening. Seas: Around 1 metre, increasing to 1.5 metres offshore. Swell: Easterly 1 to 1.5 metres. Weather: Mostly clear.

Forecast for Friday 22 October

Winds: Northeasterly 15 to 20 knots, reaching up to 25 knots offshore early morning, decreasing to 10 to 15 knots in the afternoon. Seas: 1 to 2 metres, decreasing below 1 metre during the afternoon. Swell: East to northeasterly 1 to 1.5 metres, increasing to 1.5 to 2 metres during the morning. Weather: Partly cloudy.

Forecast for Saturday 23 October

Winds: East to northeasterly 5 to 15 knots tending southeast to southwesterly 15 to 25 knots in the middle of the day and early afternoon then tending southerly 20 to 30 knots in the evening. Seas: Around 1 metre, increasing to 1 to 2 metres near Eddystone Point during the afternoon. Swell: Easterly 1.5 to 2 metres, decreasing to near 1.5 metres during the morning. Weather: Cloudy. 95% chance of showers. The chance of a thunderstorm offshore in the late afternoon and evening.

Forecast for Sunday 24 October

Winds: South to southwesterly 20 to 30 knots. Seas: 1 to 2 metres, increasing to 2 to 3 metres during the morning. 1st Swell: Southerly below 1 metre, increasing to 1 to 1.5 metres during the morning. 2nd Swell: Easterly around 1 metre inshore, increasing to 1 to 1.5 metres offshore. Weather: Partly cloudy. 95% chance of showers.

Banks Strait and Franklin Sound

Forecast for Thursday 21 October until midnight

Winds: Northeasterly 15 to 20 knots. Seas: 1 to 1.5 metres. Swell: Easterly around 1 metre. Weather: Partly cloudy.

Forecast for Friday 22 October

Winds: Northeasterly 15 to 20 knots decreasing to 10 to 15 knots near midday then to about 10 knots in the evening. Seas: 1 to 1.5 metres, decreasing below 1 metre around midday. Swell: Easterly 1 to 1.5 metres, increasing to 1 to 2 metres around midday. Weather: Partly cloudy.

Forecast for Saturday 23 October

Winds: Easterly 5 to 15 knots turning south to southeasterly 15 to 25 knots in the afternoon. Seas: Below 1 metre, increasing to 1 to 1.5 metres about Banks Strait by early evening. Swell: Easterly 1 to 2 metres, decreasing to 1 to 1.5 metres during the morning, then to around 1 metre during the afternoon. Weather: Cloudy. Near 100% chance of showers.

Forecast for Sunday 24 October

Winds: Southwesterly 15 to 20 knots turning southerly during the morning. Seas: 1 to 1.5 metres, increasing to 1 to 2 metres about Banks Strait. Swell: Easterly around 1 metre. Weather: Partly cloudy. 90% chance of showers.

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

* 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.