IDY21092 40:2:1:04:55S125E35050:01:00 SECURITE High Seas Weather Warning for METAREA 10 Issued by the Australian Government Bureau of Meteorology At 0003UTC 20 May 2026 GALE WARNING 12 FOR SOUTHEASTERN AREA SITUATION AT 200000UTC Vigorous flow associated with a trough 31S160E 39S160E to low 993hPa near 41S158E to 45S158E. Forecast 31S162E to low 995hPa near 42S160E to 45S160E at 200600UTC, 32S162E 39S163E to low 1001hPa near 42S162E at 201200UTC, and then moving east of area. AREA AFFECTED Bounded by 39S159E 39S154E 45S155E 45S161E 35S166E 31S161E 39S159E. FORECAST Northeasterly quarter winds within 180nm east of trough, and clockwise winds within 240nm of low. Wind speeds 30/40 knots, increasing to 35/45 knots within 120nm of low in western quadrant. Winds easing below 34 knots by 201800UTC. Rough to very rough seas, rising to high seas within 120nm of low in western quadrant. 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 20 May 2026