WOAU06 AMMC 281800 IDY21050 40:2:1:04:70S075E35060:01:00 SECURITE High Seas Weather Warning for METAREA 10 Issued by the Australian Government Bureau of Meteorology At 1800UTC 28 August 2026 GALE WARNING 6 FOR WESTERN AND SOUTHERN AREAS SITUATION AT 281800UTC Vigorous northwesterly quarter winds associated with trough 40S090E 44S098E 48S108E. Forecast trough 40S093E 44S099E 48S107E at 290000UTC, 40S095E 43S099E 47S103E 48S110E at 290600UTC, 40S098E 45S103E 49S110E at 291200UTC, and 39S099E 45S104E 49S110E 51S119E at 291800UTC. AREA AFFECTED Bounded by 40S091E 40S101E 50S121E 52S120E 43S091E 40S091E. FORECAST Northwesterly quarter winds 30/40 knots initially within 60nm east of trough, expanding to within 180nm east of trough by 291800UTC. 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 0100 UTC 29 August 2026