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Australian Government Bureau of Meteorology
Western Australia
Local Waters Forecast
Yanchep to Mandurah and Offshore to Rottnest Island
Issued at 4:30 pm WST on Monday 21 May 2012
Valid until midnight Thursday
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 situated over the southern parts of the State.
Forecasts:
Monday until midnight: S/SE winds 15/20 knots tending S/SW 10/15 knots inshore.
Seas 1.0m to 1.5m. Swell to 1.5m rising to 2.0m in the evening.
Swell at Cottesloe: to 0.7m
Winds on Melville Water: Similar.
Tuesday: S/SE winds 10/15 knots increasing to 15/20 knots late morning. Seas
1.5m to 2.0m. Swell to 2.0m.
Swell at Cottesloe: to 0.7m.
Winds on Melville Water: Similar though 5 knots lighter during the afternoon and
evening.
Wednesday: E'ly winds 18/23 knots. Seas 1.0m to 1.5m. Swell 2.0m to 2.5m.
Thursday: E/NE winds 13/18 knots becoming variable to 10 knots in the afternoon.
Current Swell Observations:
Rottnest Waverider Buoy: 1.3m.
Cottesloe Waverider Buoy: 0.5m.
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 11:30 pm WST Monday.
Kalbarri to Jurien Bay: (Including GERALDTON)
Strong Wind Warning.
Monday until midnight: S/SW winds 13/18 knots tending S/SE 15/20 knots early
evening. Seas 1.0m to 1.5m. Swell 1.5m to 2.0m.
Tuesday: S/SE winds 15/20 knots, reaching 20/30 knots late afternoon. Seas 1.5m
to 2.5m. Swell to 2.0m.
Wednesday: E/SE winds 18/23 knots easing to 13/18 knots late morning and
increasing to 20/30 knots late afternoon. Seas 1.0m to 2.0m. Swell 2.0m to 2.5m.
Thursday: E/SE winds 20/30 knots easing to E/NE 18/23 knots during the morning
and 13/18 knots during the afternoon.
Jurien Bay to Mandurah: (Including LANCELIN & CERVANTES)
Monday until midnight: S/SE winds 15/20 knots tending S/SW 10/15 knots inshore.
Seas 1.0m to 1.5m. Swell 1.5m rising to 2.5m in the afternoon.
Tuesday: S/SE winds 15/20 knots reaching 20/25 knots north of Lancelin during
the afternoon. Seas 1.5m to 2.0m. Swell to 2.0m.
Wednesday: E'ly winds 18/23 knots. Seas 1.0m to 1.5m. Swell 2.0m to 2.5m.
Thursday: E/NE winds 13/18 knots becoming variable to 10 knots in the afternoon.
Mandurah to Cape Leeuwin: (Including MARGARET RIVER)
Monday until midnight: S/SE wind 10/15 knots. Seas to 1.0m. Swell to 3.0m.
Tuesday: SW/SE winds 8/13 knots tending S/SE 15/20 knots in the afternoon. Seas
to 1.5m. Swell to 2.0m.
Wednesday: E/SE winds 15/20 knots easing to 10/15 knots during the morning. Seas
1.0m to 1.5m. Swell 2.5m to 3.0m.
Thursday: E/NE winds 10/15 knots becoming NE/NW 5/10 knots late afternoon.
Cape Leeuwin to Bremer Bay: (Including ALBANY)
Monday until midnight: W/SW winds 10/15 knots. Seas to 1.0m. Swell 2.5m to 3.0m.
Tuesday: W/SW winds 10/15 knots tending W/NW 8/13 knots inshore until after
sunrise. Winds increasing to W/SW 15/20 knots during the morning and tending
S/SE 18/23 knots late afternoon. Seas 1.5m to 2.5m. Swell 2.5m to 3.0m.
Wednesday: S/SE winds 13/18 knots easing to SE/NE 8/13 knots during the morning.
Seas to 1.5m. Swell to 4.0m.
Thursday: N/NE winds 8/13 knots becoming variable to 10 knots in the afternoon.
Bremer Bay to Israelite Bay: (Including ESPERANCE)
Strong Wind Warning.
Monday until midnight: SW'ly winds 10/15 knots. Seas to 1.0m. Swell 1.5m to
2.0m.
Tuesday: W/SW winds 10/15 knots tending W/NW 8/13 knots inshore until after
sunrise. Winds tending SW'ly 15/20 knots during the morning and increasing to
S/SW 20/30 knots in the evening. Seas 1.5m to 2.5m. Swell 2.5m to 3.0m.
Wednesday: S'ly winds 15/20 knots easing to 10/15 knots from the west late
morning and early afternoon. Seas 1.0m to 1.5m. Swell to 4.0m.
Thursday: Variable winds to 10 knots.
Israelite Bay to SA Border:
Strong Wind Warning west of Caiguna.
Monday until midnight: SW'ly winds 8/13 knots. Seas to 0.5m. Swell 1.5m to 2.0m.
Tuesday: NW/SW winds 8/13 knots, tending S/SW 15/20 in the afternoon and
reaching 20/30 knots west of Caiguna in the evening. Seas 1.5m to 2.5m. Swell
2.5m to 3.0m.
Wednesday: S/SW winds 20/30 knots. Seas 2.0m to 2.5m. Swell 3.5m to 4.0m.
Thursday: S'ly winds 18/23 knots.
Western Australia
Local Waters Forecast
Yanchep to Mandurah and Offshore to Rottnest Island
Issued at 4:30 pm WST on Monday 21 May 2012
Valid until midnight Thursday
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 situated over the southern parts of the State.
Forecasts:
Monday until midnight: S/SE winds 15/20 knots tending S/SW 10/15 knots inshore.
Seas 1.0m to 1.5m. Swell to 1.5m rising to 2.0m in the evening.
Swell at Cottesloe: to 0.7m
Winds on Melville Water: Similar.
Tuesday: S/SE winds 10/15 knots increasing to 15/20 knots late morning. Seas
1.5m to 2.0m. Swell to 2.0m.
Swell at Cottesloe: to 0.7m.
Winds on Melville Water: Similar though 5 knots lighter during the afternoon and
evening.
Wednesday: E'ly winds 18/23 knots. Seas 1.0m to 1.5m. Swell 2.0m to 2.5m.
Thursday: E/NE winds 13/18 knots becoming variable to 10 knots in the afternoon.
Current Swell Observations:
Rottnest Waverider Buoy: 1.3m.
Cottesloe Waverider Buoy: 0.5m.
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 11:30 pm WST Monday.
Kalbarri to Jurien Bay: (Including GERALDTON)
Strong Wind Warning.
Monday until midnight: S/SW winds 13/18 knots tending S/SE 15/20 knots early
evening. Seas 1.0m to 1.5m. Swell 1.5m to 2.0m.
Tuesday: S/SE winds 15/20 knots, reaching 20/30 knots late afternoon. Seas 1.5m
to 2.5m. Swell to 2.0m.
Wednesday: E/SE winds 18/23 knots easing to 13/18 knots late morning and
increasing to 20/30 knots late afternoon. Seas 1.0m to 2.0m. Swell 2.0m to 2.5m.
Thursday: E/SE winds 20/30 knots easing to E/NE 18/23 knots during the morning
and 13/18 knots during the afternoon.
Jurien Bay to Mandurah: (Including LANCELIN & CERVANTES)
Monday until midnight: S/SE winds 15/20 knots tending S/SW 10/15 knots inshore.
Seas 1.0m to 1.5m. Swell 1.5m rising to 2.5m in the afternoon.
Tuesday: S/SE winds 15/20 knots reaching 20/25 knots north of Lancelin during
the afternoon. Seas 1.5m to 2.0m. Swell to 2.0m.
Wednesday: E'ly winds 18/23 knots. Seas 1.0m to 1.5m. Swell 2.0m to 2.5m.
Thursday: E/NE winds 13/18 knots becoming variable to 10 knots in the afternoon.
Mandurah to Cape Leeuwin: (Including MARGARET RIVER)
Monday until midnight: S/SE wind 10/15 knots. Seas to 1.0m. Swell to 3.0m.
Tuesday: SW/SE winds 8/13 knots tending S/SE 15/20 knots in the afternoon. Seas
to 1.5m. Swell to 2.0m.
Wednesday: E/SE winds 15/20 knots easing to 10/15 knots during the morning. Seas
1.0m to 1.5m. Swell 2.5m to 3.0m.
Thursday: E/NE winds 10/15 knots becoming NE/NW 5/10 knots late afternoon.
Cape Leeuwin to Bremer Bay: (Including ALBANY)
Monday until midnight: W/SW winds 10/15 knots. Seas to 1.0m. Swell 2.5m to 3.0m.
Tuesday: W/SW winds 10/15 knots tending W/NW 8/13 knots inshore until after
sunrise. Winds increasing to W/SW 15/20 knots during the morning and tending
S/SE 18/23 knots late afternoon. Seas 1.5m to 2.5m. Swell 2.5m to 3.0m.
Wednesday: S/SE winds 13/18 knots easing to SE/NE 8/13 knots during the morning.
Seas to 1.5m. Swell to 4.0m.
Thursday: N/NE winds 8/13 knots becoming variable to 10 knots in the afternoon.
Bremer Bay to Israelite Bay: (Including ESPERANCE)
Strong Wind Warning.
Monday until midnight: SW'ly winds 10/15 knots. Seas to 1.0m. Swell 1.5m to
2.0m.
Tuesday: W/SW winds 10/15 knots tending W/NW 8/13 knots inshore until after
sunrise. Winds tending SW'ly 15/20 knots during the morning and increasing to
S/SW 20/30 knots in the evening. Seas 1.5m to 2.5m. Swell 2.5m to 3.0m.
Wednesday: S'ly winds 15/20 knots easing to 10/15 knots from the west late
morning and early afternoon. Seas 1.0m to 1.5m. Swell to 4.0m.
Thursday: Variable winds to 10 knots.
Israelite Bay to SA Border:
Strong Wind Warning west of Caiguna.
Monday until midnight: SW'ly winds 8/13 knots. Seas to 0.5m. Swell 1.5m to 2.0m.
Tuesday: NW/SW winds 8/13 knots, tending S/SW 15/20 in the afternoon and
reaching 20/30 knots west of Caiguna in the evening. Seas 1.5m to 2.5m. Swell
2.5m to 3.0m.
Wednesday: S/SW winds 20/30 knots. Seas 2.0m to 2.5m. Swell 3.5m to 4.0m.
Thursday: S'ly winds 18/23 knots.
Forecasts provided by the BoM and are © Copyright Commonwealth of Australia, Bureau of Meteorology
