FQAU23 AMMC 282100 IDY10220 SECURITE High Seas Forecast for Western METAREA 10 12S TO 30S BETWEEN 90E AND 125E, AND 30S TO 50S BETWEEN 80E AND 129E Issued by the Australian Government Bureau of Meteorology For 24 hours commencing 2300 UTC 28 August 2026 Part 1 Warnings Refer to latest warnings for boundary of affected area and type of weather system. Melbourne Gale Warning 6. Part 2 Situation at 281800 UTC Trough 32S083E 40S091E 46S100E 50S114E. Forecast trough 30S094E 48S109E 50S115E at 300000UTC. Cold front 37S081E 44S083E 47S082E. Forecast cold front 38S085E 44S088E to developing low 1000hPa near 46S087E at 290300UTC. Forecast cold front 42S098E 47S101E to low 990hPa near 50S100E at 300000UTC. Part 3 Forecast Refer to latest warnings for details of the area affected. South of line 30S080E 30S097E 40S110E 44S120E 44S129E, outside warning areas: Westerly quarter winds, shifting northwesterly quarter winds east of trough and cold front, shifting southwesterly within 120nm west of front, and turning clockwise within 180nm of low. Wind speeds 20/33 knots. Rough to very rough seas. Moderate to heavy swell. Remainder: Winds not exceeding 25 knots. Slight to moderate seas. Low to moderate swell. Rain areas, scattered showers and isolated thunderstorms within 120nm of trough, front and low, and north of line 26S090E 16S095E 16S114E. Visibility reducing below 2nm in precipitation. Please be aware Wind and wave forecasts are averages. Wind gusts can be 40 per cent stronger than the forecast, and stronger still in squalls and thunderstorms. Maximum waves can be twice the forecast height. WEATHER MELBOURNE The next routine forecast will be issued at 09:00 UTC Saturday.