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

View the current warnings for Western Australia

Forecast issued at 4:01 am WST on Thursday 2 October 2014.

Weather Situation

A deep surface trough will move inland during Thursday with a ridge of high pressure developing in its wake during Friday and Saturday.

Forecast for Thursday until midnight

Winds
Northeast to northwesterly 10 to 15 knots increasing to 15 to 20 knots during the morning before shifting southwesterly 15 to 20 knots in the afternoon. Winds easing to 10 to 15 knots during the evening.
Seas
Around 1 metre, increasing to 1 to 1.5 metres around midday.
Swell
Southwesterly 1.5 to 2.5 metres.

Friday 3 October

Winds
South to southwesterly 10 to 15 knots becoming west to northwesterly about 10 knots for a period in the afternoon.
Seas
Below 1 metre.
Swell
West to southwesterly 1.5 to 2.5 metres.

Saturday 4 October

Winds
Westerly 10 to 15 knots decreasing to about 10 knots during the morning then becoming north to northwesterly during the afternoon.
Seas
Below 1 metre.
Swell
West to southwesterly 1.5 to 2.5 metres.

Sunday 5 October

Winds
Northwesterly 20 to 30 knots turning southwesterly 25 to 30 knots during the day.
Seas
Below 1 metre, increasing to 2 to 3 metres during the morning.
Swell
Westerly 2 to 3 metres.
Weather
Isolated thunderstorms in the morning.

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 pm WST Thursday.

Product IDW11400