Semaphore Offshore Weather Forecast

Adelaide Metropolitan Waters

Wind

Northeasterly 15 to 20 knots, reaching up to 30 knots south of Port Noarlunga in the late morning. Winds turning northwesterly in the middle of the day.

Seas

1 to 2 metres.

1st Swell

West to southwesterly below 1 metre.

Weather

Cloudy. Near 100% chance of showers. The chance of a thunderstorm during the morning and afternoon.

Weather Situation

A strong high pressure system over the Tasman Sea extends northerly winds over SA. Winds will freshen ahead of a front that is forecast to move across the far west today then continue across the state during the weekend. The low pressure system associated with this front is expected to linger over waters to the south of the state and extend a trough over southern parts later Sunday and Monday. The low will then move over Bass Strait later Monday. A ridge will extend across SA from the west on Tuesday and a cold front will move across the south later Wednesday.