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 Friday 19 December 2014.

Weather Situation

A high pressure system lies in the Bight. A deepening surface trough along the west coast will move inland later this evening or early Saturday with a new high pressure system developing in its wake.

Forecast for Friday until midnight

Strong Wind Warning for Friday for Perth Local Waters

Winds
East to southeasterly about 10 knots shifting south to southwesterly 10 to 15 knots late morning and increase to 15 to 25 knots during the afternoon. Winds reaching 30 knots at times during the evening.
Seas
Below 1 metre, increasing to 1 to 1.5 metres during the morning, then increasing to 1.5 to 2.5 metres around midday.
Swell
Southwesterly 1 to 1.5 metres, decreasing to around 1 metre during the afternoon.
Weather
Sunny.

Saturday 20 December

Strong Wind Warning for Saturday for Perth Local Waters

Winds
South to southwesterly 20 to 30 knots turning southeasterly in the late evening.
Seas
2 to 3 metres.
Swell
Southwesterly around 1 metre, increasing to 1 to 1.5 metres during the afternoon.
Weather
Sunny.

Sunday 21 December

Winds
Southeasterly 15 to 25 knots tending southerly during the morning then turning east to southeasterly 15 to 20 knots during the evening.
Seas
1.5 to 2.5 metres.
Swell
Southwesterly 1 to 1.5 metres.
Weather
Sunny.

Monday 22 December

Winds
Easterly 15 to 20 knots shifting south to southwesterly 20 to 30 knots during the morning then tending south to southeasterly 20 to 25 knots during the evening.
Seas
1 to 1.5 metres, increasing to 1.5 to 2.5 metres during the afternoon.
Swell
Southwesterly 1 to 2 metres, decreasing to 1 to 1.5 metres during the afternoon.
Weather
Sunny.

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 Friday.

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