FQAU23 APRF 172245 IDW11900 SECURITE HIGH SEAS FORECAST FOR METAREA 10 WESTERN AREA 12/30S 90/125E, 30/50S 80/129E ISSUED BY THE AUSTRALIAN BUREAU OF METEOROLOGY, PERTH FOR 24 HOURS COMMENCING 2300UTC 17 SEPTEMBER 2012 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 50S086E 43S095E 47S110E 50S110E, moving to south of a line 40S080E 42S090E 47S115E 50S117E at 180600UTC, contracting to southwest of a line 40S080E 38S095E 41S105E 46S104E 50S087E by 181800UTC. PART 2 SITUATION AT at 2100UTC. Refer to latest warnings. Ridge near 24S090E 43S116E 42S129E and near 26S090E 25S100E 38S113E by 181200UTC. Low 998hPa near 35S116E, forecast 998hPa near 37S119E at 180600UTC, and forecast 998hPa near 39S122E at 181800UTC. PART 3 FORECAST Within 180nm of ridge: Variable winds to 15 knots. Slight to moderate seas, moderate to heavy swell. Within 360nm of Low: Winds clockwise 15/25 knots, reaching 20/30 knots in southeast quadrant of low. Moderate to rough seas, moderate to heavy swell. Remainder north of ridge, west of low: SW/SE winds 10/20 knots. Slight to moderate seas, low to moderate swell. Remainder north of ridge, east of low: NE winds 20/30 knots. Moderate to rough seas, moderate swell. Remainder south of ridge, outside warning area: NW/SW winds 15/25 knots. Winds increasing to 25/33 knots within 120nm of warning area. Moderate to rough seas, moderate to heavy swell. WEATHER PERTH