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 1824UTC 17 January 2026 GALE WARNING 11 FOR WESTERN AND SOUTHERN AREAS SITUATION AT 171800UTC Vigorous flow associated with low 952hPa near 53S100E. Forecast low 955hPa near 53S104E at 180000UTC, low 958hPa near 55S107E at 180600UTC, low 961hPa near 57S109E at 181200UTC, and low 964hPa weakening near 59S110E at 181800UTC. AREA AFFECTED Bounded by 49S086E 57S098E 57S118E 50S117E 42S104E 40S090E 44S085E 49S086E FORECAST Clockwise winds 34/47 knots within 480nm of low in northern and northwestern semicircles, expanding to within 780nm in northwestern quadrant. Transitioning to just clockwise winds 30/40 knots within 420nm of low in northern semicircle from 180600UTC, then contracting to within 360nm of low in northwestern quadrant from 181200UTC. Very rough to high seas, abating to rough to very rough from 180600UTC. 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 0100 UTC 18 January 2026