IDY21020 40:2:1:04:55S125E35050:01:00 SECURITE High Seas Weather Warning for METAREA 10 Issued by the Australian Government Bureau of Meteorology At 0005UTC 20 May 2026 GALE WARNING 3 FOR SOUTHEASTERN AREA SITUATION AT 200000UTC Vigorous flow forecast with low 1001hPa developing near 34S161E by 200600UTC, low 1002hPa near 34S162E at 201200UTC, low 1002hPa near 35S162E at 201800UTC, then low 1004hPa near 33S162E at 210000UTC. AREA AFFECTED Bounded by 37S159E 37S165E 30S165E 30S159E 37S159E. FORECAST Clockwise winds 30/40 knots forecast to develop within 180nm of low in western semicircle by 200600UTC. 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 20 May 2026