FQAU23 AMMC 290838 IDY10220 SECURITE Updated 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 1100 UTC 29 November 2025 Part 1 Warnings Nil. Part 2 Situation at 290600 UTC Trough [1] near 43S119E 50S119E. Forecast trough [1] 40S129E 50S128E at 291800UTC and moving east of area thereafter. Cold front [1] 33S080E to low 992hPa near 48S090E to warm front near 47S099E. Forecast cold front [1] 33S085E to low 992hPa near 50S096E to warm front near 51S105E at 291800UTC, and cold front [1] 35S093E to low 989hPa near 48S102E to warm front 47S112E at 301200UTC. Cold front [2] entering from west near 41S079E 50S082E at 300300UTC. Forecast near 40S083E 50S087E at 301200UTC. Part 3 Forecast East of line 26S110E 29S111E 31S115E: Southeasterly quarter winds 20/30 knots. Rough seas. Low to moderate swell. South of line 32S080E 34S093E 46S116E 38S129E, outside of warning area: Westerly quarter winds shifting northwesterly within 420nm east of cold front [1] and within 300nm of cold front [2], tending southwesterly quarter west of cold fronts. Clockwise winds within 180nm of low. Wind speeds 20/33 knots. Rough to very rough seas. Moderate to heavy swell. Remainder: Winds not exceeding 25 knots. Moderate to rough seas. Low to moderate swell. Rain areas, scattered showers and isolated thunderstorms mostly within 180nm of warm front and troughs, within 240nm of low, and within 360nm east of cold front [1] and 180nm of cold front [2]. 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 20:00 UTC Saturday.