Local Waters Forecast for Yanchep to Mandurah and Offshore to Rottnest Island

IDW11400
Australian Government Bureau of Meteorology
Western Australia

Local Waters Forecast
Yanchep to Mandurah and Offshore to Rottnest Island
Issued at 11:30 pm WST on Saturday 26 May 2012
Valid until midnight Tuesday

Please Be Aware
Wind gusts can be 40 percent stronger than the averages given here, and maximum
wave may be up to twice the height.

Warnings
Nil

Synoptic Situation
A high pressure ridge is strengthening over southern parts of the state.

Forecasts:
Sunday: Winds: East to northeasterly 15 to 20 knots decreasing to variable below
10 knots in the middle of the day then becoming east to southeasterly 10 to 15
knots in the evening. Seas: Up to 1.5 metres. Swell: Southwesterly 2 to 3
metres.
Swell at Cottesloe:  to 0.3m.
Winds on Melville Water: Similar though up to 5 knots lighter at times.

Monday: Winds: East to northeasterly 10 to 15 knots decreasing to variable below
10 knots during the day then becoming east to southeasterly 10 to 15 knots
during the evening. Seas: Up to 1.5 metres. Swell: Southwesterly 2 to 3 metres.
Tuesday: Winds: East to northeasterly 10 to 15 knots tending north to
northeasterly during the morning.

Current Swell Observations:
Rottnest Waverider Buoy:  0.8m.
Cottesloe Waverider Buoy: 0.3m.

Current swell height information is supplied by the Department of Transport and
is current only at the time of issue of this forecast

The next routine forecast will be issued at 4:30 am WST Sunday.