FQAU23 AMMC 290900 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 1100 UTC 29 May 2025 Part 1 Warnings Nil. Part 2 Situation at 290600 UTC Trough [1] near 28S111E 34S111E 35S109E to low [1] 999hPa near 33S106E. Forecast near 34S119E 41S120E 45S117E to low [1] 999hPa near 43S114E at 301200UTC. Trough [2] near 12S113E 20S113E 25S112E. Forecast near 15S114E 22S114E at 301200UTC. Cold front near 37S080E 50S098E. Forecast near 43S100E 45S106E 50S112E at 301200UTC. Trough [3] near 36S079E to low [2] 1018hPa near 35S077E to 32S072E. Forecast 39S091E to low [3] 1004hPa near 34S084E to 30S082E at 301200UTC. Part 3 Forecast Within 520nm of low [1]: Clockwise winds within 540nm of low [1]. Wind speed 20/33 knots. Rough to very rough seas. Low to moderate swell. Within 300nm of low [2]: Clockwise winds within 300nm of low [2]. Wind speed 20/33 knots developing from 300300UTC. Rough to very rough seas. Moderate to heavy swell. Remainder: Winds not exceeding 25 knots. Slight to moderate seas. Low to moderate swell, increasing to moderate to heavy swell west of line 37S080E 50S115E and within 90nm of line 23S104E 28S109E. Rain areas, scattered showers and isolated thunderstorms mostly within 180nm of cold front/troughs and within 480nm of lows. 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 21:00 UTC Thursday.