South Arm Weather Forecast

Derwent Estuary

Wind

North to northwesterly below 10 knots becoming south to southeasterly in the early afternoon then becoming southwesterly in the late evening.

Seas

Below 0.5 metres.

Weather

Partly cloudy.

Weather Situation

A high pressure ridge in combination with a deep low pressure system in the Tasman Sea is driving southeasterly flow across coastal waters. This ridge will weaken today as a weak front skims the state late tonight into Thursday morning. A new weak ridge will form through Thursday before it is cleared out by a strong cold front entering western waters Friday evening. In the wake of this cold front a stable westerly airstream will establish through Saturday.