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 Thursday 2 September 2010
Valid until midnight Sunday
Warnings
Nil.
Synoptic Situation
A ridge of high pressure developing south of the state.
Forecasts:
Friday: E'ly winds 8/13 knots tending SE/SW 8/13 knots for a period in the
afternoon. Seas to 0.5m. Swell to 1.5m.
Swell at Cottesloe: to 0.5m.
Winds on Melville Water: Generally 3/5 knots lighter.
Saturday: Variable winds 5/10 knots tending W/SW during the morning and S/SE
10/15 knots towards evening. Seas to 1.0m. Swell to 1.5m.
Sunday: E/SE winds 10/15 knots tending SE/SW 10/15 knots for a period in the
afternoon.
Current Swell Observations:
Rottnest Waverider Buoy: 0.9m.
Cottesloe Waverider Buoy: 0.4m.
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 Friday.
Kalbarri to Jurien Bay: (Including GERALDTON)
Thursday until midnight: S/SE winds 15/20 knots. Seas 1.0m to 1.5m. Swell to
1.5m.
Friday: E/SE winds 13/18 knots tending S'ly 10/15 knots in the afternoon. Seas
to 1.0m. Swell to 1.5m.
Saturday: E/SE winds 10/15 knots tending S/SE 13/18 knots in the afternoon. Seas
to 1.0m. Swell to 1.5m.
Sunday: E/SE winds 10/15 knots.
Jurien Bay to Mandurah: (Including LANCELIN & CERVANTES)
Thursday until midnight: S/SE winds 10/15 knots. Seas to 1.0m. Swell to 1.5m.
Friday: E'ly winds 8/13 knots tending SE/SW for a period in the afternoon. Seas
to 0.5m. Swell to 1.5m.
Saturday: Variable winds 5/10 knots tending W/SW during the morning and S/SE
10/15 knots towards evening. Seas to 1.0m. Swell to 1.5m.
Sunday: E/SE winds 10/15 knots tending SE/SW 10/15 knots for a period in the
afternoon.
Mandurah to Cape Leeuwin: (Including MARGARET RIVER)
Thursday until midnight: SE winds 10/15 knots. Seas to 1.0m. Swell to 2.0m.
Friday: E/NE winds 5/10 knots tending W/NW'ly in the morning and then W/SW 8/13
knots during the afternoon. Seas to 0.5m. Swell to 1.5m.
Saturday: S/SW winds 10/15 knots. Seas to 1.0m. Swell to 2.0m.
Sunday: SE winds 10/15 knots tending SE/SW 8/13 knots for a period in the
afternoon.
Cape Leeuwin to Bremer Bay: (Including ALBANY)
Thursday until midnight: SE winds 10/15 knots. Seas to 1.0m. Swell to 2.5m.
Friday: Variable winds 5/10 knots tending W/SW 10/15 knots during the afternoon.
Seas to 1.0m. Swell to 2.0m.
Saturday: SW winds 13/18 knots. Seas 1.0m to 1.5m. Swell to 2.5m.
Sunday: SE/SW winds 10/15 knots.
Bremer Bay to Israelite Bay: (Including ESPERANCE)
Thursday until midnight: E/SE winds 15/20 knots easing to 10/15 knots in the
evening. Seas 1.0m to 1.5m. Swell to 2.0m.
Friday: S/SE winds 8/13 knots tending S/SW 10/15 knots during the afternoon and
increasing to 13/18 knots in the evening. Seas to 1.5m. Swell to 2.0m.
Saturday: W/SW winds 15/20 knots easing to S/SW 10/15 knots from the west late
the afternoon. Seas 1.0m to 1.5m. Swell to 2.0m.
Sunday: S/SW winds 10/15 knots.
Israelite Bay to SA Border:
Thursday until midnight: SE winds 20/25 knots. Seas to 2.0m. Swell to 2.0m.
Friday: S/SE winds 20/25 knots easing S/SW 15/20 knots during the afternoon.
Seas 1.5m to 2.0m. Swell to 2.0m.
Saturday: W/SW winds 15/20 knots. Seas 1.0m to 1.5m. Swell to 2.0m.
Sunday: W/SW winds 13/18 knots easing to SW 10/15 knots during the afternoon.
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