WOAU14 AMMC 221203 IDY21030 40:2:1:04:70S100E35060:01:00 SECURITE High Seas Weather Warning for METAREA 10 Issued by the Australian Government Bureau of Meteorology At 1203UTC 22 May 2026 GALE WARNING 4 FOR SOUTHERN AREA SITUATION AT 221200UTC Vigorous flow associated with developing trough 53S095E 59S096E. Forecast trough 53S101E 58S102E at 221800UTC, 53S106E 56S108E 59S109E at 230000UTC and trough 53S114E 63S120E at 230600UTC, and trough 53S122E 63S126E at 231200UTC. AREA AFFECTED Bounded by 54S088E 52S128E 63S130E 65S107E 60S089E 54S088E. FORECAST Northwesterly winds within 240nm east of trough shifting southwesterly within 360nm west of trough, then expanding within 540nm west of trough by 230600UTC. Wind speeds 30/40 knots. 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 1900 UTC 22 May 2026