IDY10210 SECURITE High Seas Forecast for South Eastern METAREA 10 SOUTH EASTERN AREA: COAST AT 25S TO 25S170E TO 29S170E TO 45S160E TO 50S160E TO 50S129E TO COAST AT 129E Issued by the Australian Government Bureau of Meteorology For 24 hours commencing 2300 UTC 24 August 2026 Part 1 Warnings Refer to latest warnings for details of the area affected. Part 2 Situation at 241800 UTC Forecast cold front [1] entering from west near 45S129E 50S133E at 251800UTC, then near 42S129E 50S135E at 260000UTC. Forecast trough developing near 33S152E 39S149E at 250000UTC, trough 32S152E to deepening low 1007hPa near 44S157E at 251800UTC and trough 32S156E to low 1007hPa near 44S160E at 260000UTC. Part 3 Forecast Refer to latest warnings for details of the area affected. South of line 40S129E 50S143E 50S153E 48S160E: Westerly quarter winds, tending northeasterly quarter within 300nm east of cold front [1]. Wind speeds 20/33 knots. Moderate to rough seas. Heavy swell. Within 180nm of trough and low: Northerly quarter winds east of trough, shifting westerly quarter west of trough and turning clockwise around low. Wind speeds 20/33 knots. Rough to very rough seas. Moderate to heavy swell. Remainder: Winds not exceeding 25 knots. Slight to moderate seas. Low to moderate swell increasing to heavy swell south of line 45S129E 43S161E. Rain areas, scattered showers and isolated thunderstorms mainly within 240nm of front, within 120nm of trough and 180nm of low. Visibility reducing below 2nm in precipitation. 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 Tuesday.