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 7 October 2025 Part 1 Warnings Refer to latest warnings for details of the area affected. Melbourne Gale Warning 3. Melbourne Gale Warning 4. Part 2 Situation at 071800 UTC Trough near 42S118E 50S128E. Forecast near 42S130E 50S137E at 071800UTC. Cold front 28S078E 33S081E 38S081E 45S077E 46S074E 42S072E to low 1000hPa near 40S074E, forecast 29S088E 37S093E 42S093E 47S087E 46S085E to low 1002hPa near 43S086E at 090000UTC. Part 3 Forecast Refer to latest warnings for boundary of affected area and type of weather system. South of line 50S091E 41S101E 33S121E 33S129E, outside warning areas: Southwesterly quarter winds. Wind speeds 20/33 knots, Rough seas. Moderate to heavy swell. West of line 32S088E 35S091E 42S091E 45S080E: Northerly quarter winds east of front, shifting westerly quarter west of front, and becoming clockwise within 180nm of low. Wind speeds 20/30 knots, Moderate to rough seas. Moderate swell. Remainder: Winds not exceeding 25 knots. Slight to moderate seas. Low to moderate swell, increasing to moderate to heavy swell south of line 28S117E 28S112E 40S100E. Rain areas, scattered showers and isolated thunderstorms mostly within 180nm of front, 600nm of trough, and north of line 17S100E 20S090E. 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 08:00 UTC Wednesday.