HS 010

For 24 hours commencing 1100utc 1 December 2009

Please be aware, wind gusts can be a further 40 percent stronger than the averages given here, and maximum waves may be up to twice the height.

Part 1 warnings Gale Warning south of a line 45s093e 40s098e 38s104e 40s109e becoming south of a line 40s108e 37s113e 40s119e, and south of a line 38s080e 43s096e by 011800utc becoming south of line 41s080e 39s087e 42s105e 47s109e by 020600utc. Final Gale Warning east of front southeast of line 40s128e 49s122e moving to southeast of a line 43s129e 49s127e by 011200utc.

Part 2 situation at 0900utc refer to latest warnings. Weakening cold front near 49s123e 42s122e 36s120e 35s118e, forecast near eastern border at 011200utc and out of area by 011500utc. Trough lying from 33s126e to 50s126e moving East. Ridge 32s080e 34s090e 30s108e 34s118e.

Part 3 forecast within 180nm of ridge: variable winds to 15 knots. Slight to moderate seas, low to moderate swell. North of 20s, east of 115e: SW/se winds 10/20 knots. Slight to moderate seas, low swell. Remainder north of ridge: se/SW winds 15/30 knots moderate to rough seas, low to moderate swell. East of trough outside warning area: N/NE winds 15/25 knots. Moderate to rough seas, low to moderate swell. Remainder south of ridge, outside warning areas: NW/SW winds 15/25 knots, reaching 25/33 knots within 120nm of warning areas. Moderate to rough seas, moderate to heavy swell.

Weather Perth