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 17 January 2026 Part 1 Warnings Refer to latest warnings for details of the area affected. Melbourne Gale Warning 11. Melbourne Gale Warning 12. Part 2 Situation at 171800 UTC Low 952hPa near 53S100E. Forecast low 961hPa near 57S108E at 181200UTC, then low 968hPa near 61S110E at 190000UTC. Cold front near 50S112E 56S112E 59S109E. Forecast near 50S127E 63S128E at 190000UTC. Trough near 52S124E 56S137E. Forecast exiting area to south near 63S146E 63S129E at 190000UTC. Part 3 Forecast Refer to latest warnings for boundary of affected area and type of weather system. West of 137E, outside warning areas: Westerly quarter winds shifting northerly quarter east of front, northeasterly quarter within 120nm south of trough, and turning clockwise within 600nm of low. Wind speeds 20/33 knots. Rough to very rough seas. Moderate to heavy swell. East of line 56S152E 63S144E: Westerly quarter winds. Wind speeds 20/33 knots, easing below 25 knots from 182100UTC. Rough to very rough seas. Moderate to heavy swell. Rain areas, scattered showers and isolated thunderstorms mostly within 480nm of low and within 120nm of front and trough. Visibility reducing below 2nm in precipitation. Part 4 Ice edge Approximately 65S080E 65S090E 63S100E 65S110E 65S130E 63S140E 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 08:00 UTC Sunday.