IDY21020 40:2:1:04:70S100E35060:01:00 SECURITE High Seas Weather Warning for METAREA 10 Issued by the Australian Government Bureau of Meteorology At 1810UTC 7 October 2025 GALE WARNING 3 FOR WESTERN, SOUTHEASTERN AND SOUTHERN AREAS SITUATION AT 071800UTC Vigorous flow associated with a trough near 38S130E 55S131E. Forecast near 38S132E 54S134E at 080000UTC, 38S134E 54S139E at 080600UTC, 39S135E 43S139E 50S145E 53S144E at 081200UTC, and near 38S138E 47S146E 52S149E 56S150E at 081800UTC. AREA AFFECTED Bounded by 42S107E 38S115E 38S131E 38S139E 44S149E 55S157E 56S151E 54S116E 48S101E 42S107E. FORECAST Northwesterly quarter winds 30/40 knots within 540nm east of trough, shifting southwesterly quarter 34/47 knots within 1200nm west of trough. Winds west of trough contracting to within 480nm west of trough by 080300UTC and within 240nm west of trough by 081200UTC. Winds east of trough contracting to within 360nm of 081500UTC. Rough to very rough seas rising to very rough to high seas west of trough. Moderate to heavy swell. See also Melbourne Gale Warning 4. See also FINAL Melbourne Gale Warning 2 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. The next alert will be issued by 0100 UTC 08 October 2025