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 1100 UTC 17 October 2025 Part 1 Warnings Refer to latest warnings for details of the area affected. Melbourne Gale Warning 3. Melbourne Gale Warning 5. Part 2 Situation at 170600 UTC Cold front [1] near 34S151E 39S157E 47S161E. Forecast near 28S153E 37S166E at 181200UTC. Trough near 42S138E 50S141E. Forecast developing into cold front [2] near 41S153E 51S152E at 171800UTC, cold front [2] near 40S163E 52S163E at 180900UTC, exiting east thereafter. Warm front forecast entering from west 45S129E to low 983hPa near 47S117E at 171800UTC, and near 51S147E to low 964hPa near 51S132E at 181200UTC. Part 3 Forecast Refer to latest warnings for boundary of affected area and type of weather system. South of line 34S129E 38S136E 38S165E, outside warning areas: Westerly quarter winds, shifting northwesterly quarter east of cold front [1] and within 240nm east of cold front [2]. Southwesterly quarter winds within 600nm west of trough and cold front [2]. Northerly quarter winds north of warm front, turning clockwise within 180nm of low. Wind speeds 20/33 knots. Rough to very rough seas. Moderate to heavy swell. Remainder: Winds not exceeding 25 knots. Moderate to rough seas. Low to moderate swell. Rain areas, scattered showers and isolated thunderstorms mostly within 180nm of trough, low and cold fronts. 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 20:00 UTC Friday.