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

View the current warnings for Western Australia

Forecast issued at 4:00 am WST on Saturday 31 January 2015.

Weather Situation

A ridge lies to the south of the state. A deep surface trough lies near the west coast. On Sunday and Monday the surface trough will move off the west coast and a high pressure system will lie south of the Bight.

Forecast for Saturday until midnight

Winds
Easterly 15 to 20 knots turning southerly 10 to 15 knots in the middle of the day then tending east to southeasterly 15 to 20 knots in the evening.
Seas
1 to 1.5 metres, decreasing to 1 metre during the morning.
Swell
Southwesterly 1 to 1.5 metres.
Weather
The chance of a thunderstorm early this morning. Partly cloudy afternoon.

Sunday 1 February

Winds
Easterly 15 to 20 knots.
Seas
1 to 1.5 metres, decreasing to 1 metre during the morning.
Swell
West to southwesterly around 1 metre.
Weather
Partly cloudy. 30% chance of a shower in the afternoon and evening. The chance of a thunderstorm.

Monday 2 February

Winds
Easterly 15 to 20 knots tending northeasterly 15 to 25 knots during the morning then shifting west to southwesterly below 10 knots during the day.
Seas
1 to 1.5 metres, decreasing below 1 metre during the morning.
Swell
West to southwesterly below 1 metre.
Weather
Partly cloudy. 40% chance of showers. The chance of a thunderstorm.

Tuesday 3 February

Winds
Variable below 10 knots becoming west to northwesterly 10 to 15 knots during the morning then becoming variable about 10 knots during the afternoon.
Seas
Below 1 metre.
Swell
West to southwesterly around 1 metre, increasing to 1 to 1.5 metres during the evening.
Weather
Partly cloudy. 40% chance of showers. The chance of a thunderstorm.

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 Saturday.

Product IDW11400