IDY21060 40:2:1:04:70S100E35060:01:00 SECURITE High Seas Weather Warning for METAREA 10 Issued by the Australian Government Bureau of Meteorology At 1409UTC 19 March 2026 GALE WARNING 7 FOR WESTERN, SOUTHEASTERN, AND SOUTHERN AREAS SITUATION AT 191200UTC Vigorous flow associated with cold front 50S141E 56S141E 56S134E to low 974hPa near 54S129E. Forecast cold front weakening, with trough developing 49S132E to low 965hPa near 58S137E at 191800UTC, trough 50S136E to low 967hPa near 58S140E at 200000UTC, then low weakening with just trough 51S142E 59S144E by 200600UTC, and trough 55S149E 59S149E at 201200UTC. AREA AFFECTED Bounded by 47S114E 47S133E 55S152E 60S152E 59S135E 56S130E 57S114E 47S114E. FORECAST Northwesterly quarter winds within 240nm east of cold front and developing within 360nm, of trough, then contracting to within 180nm of trough by 200600UTC. Winds tending clockwise within 480nm of low in northern semicircle, then contracting to 240nm of low by 191800UTC. Wind speeds 35/45 knots, easing below 34 knots east of cold front by 191800UTC, then easing around low by 200600UTC. Very rough to high 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 1900 UTC 19 March 2026