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 1100 UTC 10 December 2025 Part 1 Warnings Refer to latest warnings for details of the area affected. Melbourne Gale Warning 9. Melbourne Gale Warning 11. Part 2 Situation at 100600 UTC Cold front [1] near 50S101E to low [1] 965hPa near 57S108E to warm front [1] near 59S108E 60S112E 59S121E. Trough [1] near 56S145E 58S149E to low [2] 979hPa near 60S147E. Forecast cold front [2] entering area from north near 50S119E to low [3] 981hPa near 54S123E to warm front [2] near 54S128E 53S134E. Cold front [2] near 51S126E to low 969hPa near 57S128E to warm front [2] near 58S135E 55S143E. Part 3 Forecast Refer to latest warnings for details of the area affected. Entire area, outside of warning areas: Westerly quarter winds, shifting northwesterly quarter within 300nm east of cold fronts, northeasterly quarter south of warm front [1], southwesterly quarter within 300nm west of cold fronts, clockwise within 300nm of low [1], and clockwise within 180nm of lows [2], [3]. Wind speeds 20/33 knots. Moderate to rough seas. Moderate to heavy swell. Rain areas, scattered showers and isolated thunderstorms mainly within 180nm of fronts/trough and within 300nm of lows. Visibility reducing below 2nm in precipitation. Part 4 Ice edge Approximately 64S080E 64S090E 63S100E 62S110E 63S120E 63S130E 62S140E 59S150E 63S160E. 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 Wednesday.