Perth Local Waters Forecast: Two Rocks to Dawesville, inshore from Rottnest Island

View the current warnings for Western Australia

Forecast issued at 10:11 pm WST on Saturday 22 November 2014.

Weather Situation

A ridge lies over metropolitan waters and is expected to shift south during Sunday and Monday as a surface trough develops rapidly down the west coast. The deepening trough will extend offshore south of Geraldton on Tuesday.

Forecast for Saturday until midnight

Winds
Southwesterly 15 to 20 knots.
Seas
1 to 1.5 metres.
Swell
West to southwesterly 2 to 3 metres.
Weather
Partly cloudy.

Sunday 23 November

Winds
South to southwesterly 15 to 20 knots.
Seas
1 to 1.5 metres.
Swell
Southwesterly 2 to 3 metres, decreasing to 1.5 to 2 metres around midday.
Weather
Partly cloudy. 30% chance of a shower in the morning.

Monday 24 November

Winds
Southeasterly 15 to 25 knots tending southeast to southwesterly in the morning then becoming southeasterly 10 to 15 knots in the late evening.
Seas
1.5 to 2.5 metres, decreasing to 1 metre during the morning, then increasing to 1.5 to 2.5 metres around midday.
Swell
Southwesterly 1 to 2 metres, decreasing to 1 to 1.5 metres during the morning.
Weather
Sunny.

Tuesday 25 November

Winds
Easterly 15 to 20 knots tending south to southeasterly during the day then tending easterly 15 to 25 knots during the evening.
Seas
1 to 1.5 metres.
Swell
Southwesterly 1 to 1.5 metres, decreasing to around 1 metre during the morning.
Weather
Mostly sunny morning. The chance of a thunderstorm in the afternoon and evening.

Wednesday 26 November

Winds
East to northeasterly 20 to 30 knots shifting northwesterly 15 to 20 knots during the morning then tending northerly 10 to 15 knots during the afternoon.
Seas
1 to 2 metres, decreasing to 1 metre during the afternoon or evening.
Swell
Southwesterly around 1 metre, increasing to 1 to 1.5 metres during the evening.
Weather
Partly cloudy. 30% chance of a shower. The chance of a thunderstorm in the morning and afternoon.

Please be awareWind gusts can be 40 percent stronger than the averages given here, and maximum waves may be up to twice the height. Wind warnings are issued for today and tomorrow and describe the highest category of wind warning for that day.

The next routine forecast will be issued at 4:00 am WST Sunday.

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