IDY10250 SECURITE Updated 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 19 March 2026 Part 1 Warnings Refer to latest warnings for boundary of affected area and type of weather system. Melbourne Gale Warning 7. Melbourne Gale Warning 10. Part 2 Situation at 190600 UTC Cold front [1] 46S130E 51S135E to low 973hPa near 57S124E, forecast 50S155E 64S163E to low 978hPa near 63S150E at 201200UTC. Trough [1] 48S122E 54S125E, forecast 51S148E 60S150E at 201200UTC. Cold front [2] 47S071E 55S076E, forecast 43S103E 54S109E at 201200UTC. Part 3 Forecast Refer to latest warnings for details of the area affected. East of 110E, outside warning area: Westerly quarter winds becoming northerly quarter within 320nm east of cold front [1], and tending clockwise within 640nm of low in the northern semicircle. Wind speeds 25/33 knots. Rough to very rough seas. Moderate to heavy swell. North of line 60S080E 60S100E, outside warning area: Southwesterly quarter winds 25/33 knots. Rough to very rough seas. Moderate swell. Remainder: Winds not exceeding 25 knots. Slight to moderate seas. Moderate swell. Rain areas, scattered showers and thunderstorms mostly within 180nm of cold fronts and trough, and within 360nm of low. Visibility reducing below 2nm in precipitation. Part 4 Ice edge Approximately 64S080E 64S090E 62S100E 65S110E 65S130E 64S140E 65S150E 64S160E 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 Thursday.