IDY21091 40:2:1:04:70S075E35060:01:00 SECURITE High Seas Weather Warning for METAREA 10 Issued by the Australian Government Bureau of Meteorology At 0016UTC 19 September 2026 GALE WARNING 11 FOR WESTERN AND SOUTHERN AREAS SITUATION AT 190000UTC Vigorous flow developing associated with a forecast cold front near 42S075E 48S080E 50S080E at 190300UTC, near 44S080E 48S083E 51S082E at 190600UTC, near 43S084E 47S087E 51S088E at 191200UTC, and near 42S087E 47S092E 51S092E at 191800UTC, decaying thereafter. AREA AFFECTED Bounded by 51S094E 47S094E 43S090E 43S080E 50S080E 51S094E. FORECAST Northwesterly quarter winds 30/40 knots developing within 120nm east of cold front from 190300UTC. Winds easing below 34 knots throughout area by 191800UTC. Rough to very rough seas. Moderate to heavy swell. 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 0700 UTC 19 September 2026