Shag Rock Weather Forecast

Upper West Coastal Waters

Wind

Northerly 15 to 20 knots.

Seas

Below 1 metre, increasing to 1 to 1.5 metres offshore.

1st Swell

Southwesterly 1.5 metres, increasing to 2 metres south of Streaky Bay.

Weather

Cloudy. 90% chance of rain. The chance of a thunderstorm.

Weather Situation

A high pressure system centred over the Tasman Sea extends a ridge over the northeast of SA. A low pressure system will develop over the Bight on Monday then will remain slow-moving until later Thursday when it will move eastwards. An associated cold front will move across SA during Wednesday followed by a second front later Thursday. A high pressure ridge will move across from the west over the weekend.