Shag Rock Weather Forecast

Upper West Coastal Waters

Wind

Northerly 15 to 20 knots turning westerly 15 to 25 knots in the early afternoon. Winds reaching up to 30 knots south of Streaky Bay in the late evening.

Seas

Around 1 metre, increasing to 1 to 1.5 metres south of Streaky Bay.

1st Swell

Southwesterly 3 to 4 metres, decreasing to 3 metres by early evening.

Weather

Mostly sunny. The chance of a thunderstorm from the late morning.

Weather Situation

A high pressure ridge over SA will move to the east during this morning, as a trough moves over the state during the day, followed by a strong cold front early Saturday. A high pressure system will then move across the state, behind the front, and merge with another high located to the southwest of WA on Sunday to extend a ridge across much of SA into next week. A low pressure system is also expected to move in vicinity of the WA border late Sunday and may extend a trough into far west SA into next week.