Investigator Strait Coastal Waters Forecast

View the current warnings for South Australia

Forecast issued at 3:53 pm CST on Wednesday 23 September 2020.

Weather Situation

A moderating west to southwesterly airstream will turn west to northwesterly and freshen on Thursday as a low pressure system develops west of Tasmania. This low is expected to move eastwards across Bass Strait on Friday. An associated cold front will extend a very cold and fresh to strong southwesterly change over the west and south of SA later on Thursday then over remaining parts on Friday morning. A high pressure ridge will move eastwards across the State over the weekend then a slow moving trough will move over the far west early next week.

Forecast for Wednesday until midnight

Winds
Southwesterly 15 to 20 knots.
Seas
1 to 1.5 metres.
1st Swell
West to southwesterly below 1 metre, reaching 1 to 2 metres in the west.
2nd Swell
Southerly 1 to 2 metres in the east of Backstairs Passage.
Weather
Partly cloudy.

Thursday 24 September

Strong Wind Warning for Thursday for Investigator Strait

Winds
Southwesterly 10 to 15 knots turning westerly 15 to 25 knots before dawn. Winds reaching up to 30 knots during the afternoon and evening.
Seas
1 to 1.5 metres, increasing to 1.5 to 2.5 metres during the morning.
1st Swell
West to southwesterly below 1 metre.
2nd Swell
Southerly 1 to 2 metres in the east of Backstairs Passage.
Weather
Cloudy. 90% chance of showers. The chance of a thunderstorm in the afternoon and evening. Possible small hail in the late afternoon and evening.

Friday 25 September

Winds
Southwesterly 20 to 30 knots tending south to southwesterly 15 to 25 knots in the morning.
Seas
1.5 to 2.5 metres.
Swell
West to southwesterly around 1 metre, increasing to 1 to 1.5 metres during the morning, then increasing to 1 to 2 metres during the afternoon.
Weather
Cloudy. 70% chance of showers. The chance of a thunderstorm in the morning. Possible hail.

Saturday 26 September

Winds
Southwesterly 15 to 20 knots becoming southwest to southerly 10 to 15 knots during the morning.
Seas
1 to 1.5 metres, decreasing to 1 metre during the afternoon.
Swell
West to southwesterly 1 to 1.5 metres, decreasing to around 1 metre during the morning.
Weather
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.

Nearby Coastal Waters

WA - Eucla Coast - Coastal Waters Forecast Vic - West Coast - Coastal Waters Forecast SA - Lower South East Coast - Coastal Waters Forecast SA - Upper South East Coast - Coastal Waters Forecast SA - Adelaide Metropolitan Waters Forecast SA - Gulf St Vincent - Coastal Waters Forecast SA - Spencer Gulf - Coastal Waters Forecast SA - Investigator Strait - Coastal Waters Forecast SA - South Central Coast - Coastal Waters Forecast SA - Central Coast - Coastal Waters Forecast SA - Lower West Coast - Coastal Waters Forecast SA - Upper West Coast - Coastal Waters Forecast SA - Far West Coast - Coastal Waters Forecast

The next routine forecast will be issued at 5:10 am CST Thursday.

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