IDY21092 40:2:1:04:70S075E35060:01:00 SECURITE High Seas Weather Warning for METAREA 10 Issued by the Australian Government Bureau of Meteorology At 0015UTC 19 September 2026 GALE WARNING 12 FOR WESTERN AND SOUTHERN AREAS SITUATION AT 190000UTC Vigorous associated with trough forecast near 55S093E 58S099E 61S099E at 191200UTC, near 53S100E 58S107E 61S107E at 191800UTC, and near 51S105E 58S111E 60S111E at 200000UTC. AREA AFFECTED Bounded by 54S083E 60S087E 61S107E 54S113E 49S107E 54S083E. FORECAST Southwesterly quarter winds developing within 420nm west of trough, shifting westerly quarter within 120nm east of trough at 191200UTC. Westerly quarter winds expanding to within 360nm east of trough by 191800UTC. Wind speeds 30/40 knots. Gales winds covered by Melbourne Gale Warning 10 from 200000UTC. 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