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 19 July 2026 Part 1 Warnings Refer to latest warnings for boundary of affected area and type of weather system. Melbourne Gale Warning 1. Melbourne Gale Warning 2. Melbourne Gale Warning 9. Melbourne Gale Warning 10. Part 2 Situation at 191800 UTC Cold front [1] near 50S136E to low [1] 978hPa near 59S135E to warm front 59S150E 57S159E. Forecast cold front [1] 50S153E to low [1] 975hPa near 61S140E to warm front 61S160E at 200600UTC, and whole system weakening thereafter. Cold front [2] near 50S116E 57S120E 63S120E. Forecast cold front [2] near 50S134E 55S135E to developing low 968hPa near 58S130E at 201200UTC, and cold front [2] near 50S141E 55S149E 60S148E to low [2] 960hPa near 62S138E at 210000UTC. Cold front [3] near 50S101E 54S103E 58S100E. Forecast cold front [3] near 50S135E 56S132E at 210000UTC. Trough near 50S089E to low [3] 968hPa near 59S095E. Forecast trough 50S114E to weakening low 981hPa near 56S118E at 210000UTC. Part 3 Forecast Refer to latest warnings for details of the area affected. Whole area, outside warning areas: Westerly quarter winds, shifting northerly quarter within 300nm east of cold fronts [1] and [2], northwesterly quarter north of warm front and within 240nm east of trough and cold front [3], southwesterly quarter southwest of trough, and easterly quarter within 180nm south of warm front. Winds turning clockwise within 240nm of lows. Wind speeds 20/33 knots. Rough to very rough seas. Moderate to heavy swell. Rain areas, scattered showers and isolated thunderstorms mostly within 180nm of fronts and within 420nm of lows. Visibility reducing below 2nm in precipitation. Part 4 Ice edge Approximately 59S080E 58S090E 61S100E 62S120E 62S140E 62S160E. 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 Monday.