IDY10250 SECURITE High Seas Forecast for Southern METAREA 10 SOUTHERN AREA: 50S80E TO 50S160E TO ICE EDGE Issued by the Australian Government Bureau of Meteorology For 24 hours commencing 2300 UTC 21 June 2025 Part 1 Warnings Refer to latest warnings for details of the area affected. Melbourne Gale Warning 2. Melbourne Gale Warning 11. Melbourne Gale Warning 12. Part 2 Situation at 211800 UTC Low [1] 952hPa south of ice edge near 63S099E. Forecast weakening low [1] 981hPa near 61S114E at 230000UTC. Cold front [1] near 56S128E 59S130E 64S122E. Forecast cold front [1] weakening near 55S155E 60S152E at 221200UTC. Low [2] 994hPa near 50S111E. Forecast cold front [2] entering area from north near 50S118E to low [2] 989hPa near 55S121E at 220600UTC, then cold front [2] 50S130E 56S132E to low [2] 974hPa near 61S128E at 230000UTC. Forecast warm front [1] entering area from north near 51S139E 52S130E 50S127E at 220600UTC, then near 54S141E 55S132E 53S128E at 221500UTC and 58S145E 59S138E 58S131E at 230000UTC. Forecast warm front [2] entering area from west near 54S085E 55S080E at 220600UTC, then near 56S100E 57S087E 54S080E at 230000UTC. Part 3 Forecast Refer to latest warnings for boundary of affected area and type of weather system. Whole area, outside warning areas: Westerly quarter winds shifting northerly quarter within 240nm east of cold front [1] and within 660nm east of cold front [2], shifting easterly quarter within 120nm south of warm fronts, and turning clockwise within 240nm of lows. Wind speeds 25/33 knots. Rough to very rough seas. Moderate to heavy swell. Rain areas, scattered showers and isolated thunderstorms mostly within 180nm of fronts and within 300nm of lows. Visibility reducing below 2nm in precipitation. Part 4 Ice edge Approximately 59S080E 59S090E 62S110E 62S120E 63S130E 61S160E 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 Sunday.