Weather Situation for South Australia
A ridge of high pressure extends across most of SA this evening, as a trough of low pressure develops over the west on Thursday. This broad area of low pressure is expected to slowly move across the state from the west during Friday and Saturday, before another ridge of high pressure develops through the west and south on Sunday.
Far West Coast: WA-SA Border to Fowlers Bay Forecast
Local Waters Forecast for Far West Coast: WA-SA Border to Fowlers Bay
Issued: Wednesday, 17 December 3:30PM
Forecast for Wednesday, 17 December
Winds: Easterly 15 to 20 knots.
Seas: Below 1 metre, increasing to 1 to 1.5 metres by early evening.
Swell: Southeasterly around 1 metre.
Weather: Clear.
Forecast for Thursday, 18 December
Winds: East to northeasterly 15 to 20 knots shifting southerly early in the morning. Winds reaching up to 25 knots offshore in the evening.
Seas: 1 to 1.5 metres, decreasing below 1 metre during the morning, then increasing to 1 to 2 metres during the afternoon.
Swell: Southwesterly below 1 metre.
Weather: Mostly sunny.
Forecast for Friday, 19 December
Winds: Southerly 15 to 20 knots turning southeasterly in the afternoon.
Seas: 1 to 2 metres.
Swell: Southwesterly around 1 metre, increasing to 1 to 1.5 metres during the morning, then tending southerly 1.5 to 2 metres during the afternoon.
Weather: Cloudy.
Forecast for Saturday, 20 December
Winds: Southeasterly 10 to 15 knots turning south to southwesterly 20 to 30 knots during the afternoon.
Seas: Around 1 metre, increasing to 1.5 to 2 metres during the evening.
Swell: Southerly 1 to 2 metres, tending southwesterly below 1 metre during the evening.Southeasterly around 1 metre.
Weather: Cloudy. The chance of a thunderstorm in the evening.
Upper West Coast: Fowlers Bay to Elliston Forecast
Local Waters Forecast for Upper West Coast: Fowlers Bay to Elliston
Issued: Wednesday, 17 December 3:30PM
Forecast for Wednesday, 17 December
Winds: Variable about 10 knots becoming south to southeasterly 10 to 15 knots in the late afternoon then tending east to southeasterly in the late evening.
Seas: Below 1 metre.
Swell: Southerly around 1 metre.
Weather: Clear.
Forecast for Thursday, 18 December
Winds: Easterly 10 to 15 knots turning north to northeasterly below 10 knots before dawn then tending southerly 10 to 15 knots in the middle of the day.
Seas: Around 1 metre.
Swell: Southwesterly below 1 metre.
Weather: Sunny.
Forecast for Friday, 19 December
Winds: Southerly 15 to 20 knots turning southeasterly 10 to 15 knots in the late evening.
Seas: 1 to 1.5 metres.
Swell: Southwesterly around 1 metre, increasing to 1 to 1.5 metres during the morning.
Weather: Partly cloudy.
Forecast for Saturday, 20 December
Winds: South to southeasterly 10 to 15 knots tending south to southwesterly during the evening.
Seas: Around 1 metre.
Swell: Southerly 1.5 to 2 metres, decreasing to 1 to 1.5 metres during the evening.Southeast to southwesterly around 1 metre.
Weather: Partly cloudy. The chance of a thunderstorm in the evening.
Lower West Coast: Elliston to Cape Carnot Forecast
Local Waters Forecast for Lower West Coast: Elliston to Cape Carnot
Issued: Wednesday, 17 December 3:30PM
Forecast for Wednesday, 17 December
Winds: West to southwesterly 10 to 15 knots shifting east to southeasterly in the evening.
Seas: Below 1 metre.
Swell: Southwesterly below 1 metre.
Weather: Clear.
Forecast for Thursday, 18 December
Winds: East to northeasterly 10 to 15 knots tending north to northwesterly in the morning then tending south to southwesterly in the middle of the day.
Seas: Below 1 metre.
Swell: Southwesterly below 1 metre.
Weather: Sunny.
Forecast for Friday, 19 December
Winds: Southerly 15 to 20 knots tending southeasterly 10 to 15 knots in the late evening.
Seas: Around 1 metre, increasing to 1 to 1.5 metres during the morning.
Swell: Southwesterly around 1 metre, increasing to 1 to 2 metres around midday.
Weather: Cloudy.
Forecast for Saturday, 20 December
Winds: Southeasterly 10 to 15 knots turning southwesterly during the evening.
Seas: Around 1 metre.
Swell: Southerly 1.5 to 2 metres, tending southwesterly 1 to 1.5 metres during the afternoon or evening.South to southeasterly around 1 metre.
Weather: Partly cloudy. 50% chance of showers. The chance of a thunderstorm in the evening.
Central Coast Forecast
Local Waters Forecast for Central Coast
Issued: Wednesday, 17 December 3:30PM
Forecast for Wednesday, 17 December
Winds: Variable about 10 knots.
Seas: Below 1 metre.
Swell: Southwesterly below 1 metre.
Weather: Clear.
Forecast for Thursday, 18 December
Winds: North to northeasterly 10 to 15 knots shifting south to southwesterly in the early afternoon.
Seas: Below 1 metre.
Swell: Southwesterly around 1 metre.
Weather: Sunny.
Forecast for Friday, 19 December
Winds: Southerly 15 to 20 knots.
Seas: Below 1 metre, increasing to 1 to 1.5 metres during the morning.
Swell: Southwesterly around 1 metre, increasing to 1 to 2 metres around midday.
Weather: Cloudy. The chance of a thunderstorm in the west in the late morning and early afternoon.
Forecast for Saturday, 20 December
Winds: Southerly 10 to 15 knots.
Seas: Below 1 metre.
Swell: Southwesterly 1.5 to 2 metres, decreasing to 1 to 1.5 metres during the afternoon.South to southeasterly around 1 metre.
Weather: Cloudy. 50% chance of showers. The chance of a thunderstorm in the evening.
South Central Coast Forecast
Local Waters Forecast for South Central Coast
Issued: Wednesday, 17 December 3:30PM
Forecast for Wednesday, 17 December
Winds: Variable about 10 knots.
Seas: Below 1 metre.
Swell: Southwesterly around 1 metre.Southerly around 1 metre.
Weather: Clear.
Forecast for Thursday, 18 December
Winds: North to northeasterly 10 to 15 knots tending northwest to southwesterly in the middle of the day then becoming variable about 10 knots in the early afternoon.
Seas: Below 1 metre.
Swell: Southwesterly around 1 metre.
Weather: Mostly sunny.
Forecast for Friday, 19 December
Winds: South to southwesterly about 10 knots increasing to 15 to 20 knots before dawn.
Seas: Around 1 metre, increasing to 1 to 1.5 metres around midday.
Swell: Southwesterly around 1 metre, increasing to 1 to 1.5 metres during the morning, then increasing to 1.5 to 2 metres during the afternoon.South to southeasterly around 1 metre.
Weather: Cloudy. The chance of a thunderstorm in the morning and early afternoon.
Forecast for Saturday, 20 December
Winds: Southerly 10 to 15 knots turning southeasterly during the evening.
Seas: Below 1 metre.
Swell: Southwesterly 1.5 to 2 metres, decreasing to 1 to 1.5 metres during the morning.South to southeasterly 1 to 1.5 metres, decreasing to around 1 metre during the evening.
Weather: Cloudy. 50% chance of showers. The chance of a thunderstorm in the evening.
Upper South East Coast: Murray Mouth to Cape Jaffa Forecast
Local Waters Forecast for Upper South East Coast: Murray Mouth to Cape Jaffa
Issued: Wednesday, 17 December 3:30PM
Forecast for Wednesday, 17 December
Winds: Variable about 10 knots.
Seas: Below 1 metre.
Swell: Southwesterly below 1 metre.
Weather: Clear.
Forecast for Thursday, 18 December
Winds: North to northeasterly 10 to 15 knots tending northwest to southwesterly in the middle of the day then tending southeast to southwesterly in the late afternoon.
Seas: Below 1 metre.
Swell: Southwesterly around 1 metre.
Weather: Sunny.
Forecast for Friday, 19 December
Winds: Variable about 10 knots becoming southwesterly 15 to 20 knots in the middle of the day.
Seas: Below 0.5 metres, increasing to around 1 metre during the morning.
Swell: Southwesterly around 1 metre, increasing to 1 to 2 metres around midday.Southeast to southwesterly around 1 metre.
Weather: Partly cloudy.
Forecast for Saturday, 20 December
Winds: South to southwesterly 10 to 15 knots tending south to southeasterly below 10 knots during the day.
Seas: Below 1 metre.
Swell: Southwesterly 1 to 1.5 metres, decreasing to around 1 metre during the evening.Southerly around 1 metre inshore, increasing to 1 to 1.5 metres offshore.
Weather: Partly cloudy. The chance of a thunderstorm in the evening.
Lower South East Coast: Cape Jaffa to SA-VIC Border Forecast
Local Waters Forecast for Lower South East Coast: Cape Jaffa to SA-VIC Border
Issued: Wednesday, 17 December 3:30PM
Forecast for Wednesday, 17 December
Winds: Variable about 10 knots.
Seas: Below 0.5 metres.
Swell: Southwesterly around 1 metre, increasing to 1 to 1.5 metres south of Port MacDonnell.
Weather: Clear.
Forecast for Thursday, 18 December
Winds: Northerly 10 to 15 knots turning west to northwesterly during the morning then becoming variable about 10 knots in the early afternoon.
Seas: Below 1 metre.
Swell: Southwesterly around 1 metre.
Weather: Partly cloudy.
Forecast for Friday, 19 December
Winds: Variable below 10 knots becoming southwesterly 10 to 15 knots in the morning.
Seas: Below 0.5 metres, increasing to around 1 metre around midday.
Swell: Southwesterly 1 to 2 metres, tending southerly 2 to 2.5 metres around midday, then tending southwesterly 1.5 to 2 metres during the afternoon.South to southwesterly below 0.5 metres, tending south to southeasterly 1 to 2 metres around midday.
Weather: Partly cloudy. The chance of a thunderstorm offshore in the late morning and early afternoon.
Forecast for Saturday, 20 December
Winds: Southwesterly 10 to 15 knots turning south to southeasterly below 10 knots during the afternoon.
Seas: Below 1 metre.
Swell: Southerly 1 to 1.5 metres, increasing to 1 to 2 metres south of Port MacDonnell.Southwesterly 1 to 1.5 metres.
Weather: Cloudy.
Spencer Gulf Forecast
Local Waters Forecast for Spencer Gulf
Issued: Wednesday, 17 December 3:30PM
Forecast for Wednesday, 17 December
Winds: East to northeasterly 10 to 15 knots tending east to southeasterly in the late afternoon.
Seas: Below 1 metre.
Swell: South to southwesterly below 1 metre.
Weather: Clear.
Forecast for Thursday, 18 December
Winds: Variable about 10 knots becoming north to northeasterly 10 to 15 knots in the early morning then tending southeast to southwesterly in the late afternoon. Winds reaching up to 20 knots north of Cowell to Wallaroo in the evening.
Seas: Around 1 metre.
Swell: South to southwesterly below 1 metre.
Weather: Sunny.
Forecast for Friday, 19 December
Winds: Variable about 10 knots becoming south to southwesterly 15 to 25 knots in the early morning.
Seas: Around 1 metre, increasing to 1 to 2 metres around midday.
Swell: South to southwesterly below 1 metre, increasing to around 1 metre south of Cowell to Wallaroo.
Weather: Partly cloudy. The chance of a thunderstorm north of Cowell to Wallaroo in the late morning and afternoon.
Forecast for Saturday, 20 December
Winds: Southerly 15 to 20 knots.
Seas: Around 1 metre, increasing to 1 to 1.5 metres north of Cowell to Wallaroo.
Swell: South to southwesterly 1 to 1.5 metres, decreasing to around 1 metre during the morning.
Weather: Partly cloudy. The chance of a thunderstorm in the afternoon and evening.
Gulf St Vincent Forecast
Local Waters Forecast for Gulf St Vincent
Issued: Wednesday, 17 December 3:30PM
Forecast for Wednesday, 17 December
Winds: East to southeasterly 10 to 15 knots tending south to southeasterly in the late afternoon then becoming east to southeasterly below 10 knots in the late evening.
Seas: Below 1 metre.
Swell: West to southwesterly below 0.5 metres.
Weather: Clear.
Forecast for Thursday, 18 December
Winds: Variable below 10 knots becoming north to northwesterly 10 to 15 knots in the morning then shifting southerly in the early afternoon. Winds reaching up to 20 knots in the eastern waters in the evening.
Seas: Below 1 metre.
Swell: West to southwesterly below 0.5 metres.
Weather: Sunny.
Forecast for Friday, 19 December
Winds: Variable about 10 knots becoming south to southwesterly 15 to 20 knots in the morning.
Seas: Below 1 metre, increasing to 1 to 1.5 metres during the afternoon.
Swell: Southeast to southwesterly below 0.5 metres.
Weather: Partly cloudy.
Forecast for Saturday, 20 December
Winds: Southerly 10 to 15 knots.
Seas: Around 1 metre.
Swell: West to southwesterly below 0.5 metres.
Weather: Partly cloudy. The chance of a thunderstorm in the evening.
Investigator Strait Forecast
Local Waters Forecast for Investigator Strait
Issued: Wednesday, 17 December 3:30PM
Forecast for Wednesday, 17 December
Winds: Variable about 10 knots.
Seas: Below 1 metre.
Swell: South to southeasterly below 1 metre.
Weather: Clear.
Forecast for Thursday, 18 December
Winds: Variable about 10 knots becoming northwest to northeasterly 10 to 15 knots in the morning then tending southeast to southwesterly in the late afternoon.
Seas: Below 1 metre.
Swell: Southeast to southwesterly below 1 metre.
Weather: Sunny.
Forecast for Friday, 19 December
Winds: South to southeasterly about 10 knots tending south to southwesterly 15 to 20 knots in the morning.
Seas: Below 1 metre, increasing to 1 to 1.5 metres during the afternoon.
Swell: South to southeasterly below 1 metre.
Weather: Partly cloudy.
Forecast for Saturday, 20 December
Winds: South to southeasterly 10 to 15 knots.
Seas: Around 1 metre.
Swell: Southerly around 1 metre through the Backstairs Passage.
Weather: Partly cloudy. The chance of a thunderstorm in the evening.
