IDY21030 40:2:1:04:70S075E35060:01:00 SECURITE High Seas Weather Warning for METAREA 10 Issued by the Australian Government Bureau of Meteorology At 2332UTC 15 July 2026 GALE WARNING 4 FOR WESTERN AREA SITUATION AT 160000UTC Vigorous flow associated with trough near 41S085E 48S096E. Forecast 40S088E 44S097E at 160600UTC, 38S092E 45S102E at 161200UTC, 35S096E 43S103E at 161800UTC, and 34S100E 41S105E at 170000UTC. AREA AFFECTED Bounded by 40S084E 33S103E 50S099E 50S084E 40S084E. FORECAST Westerly quarter winds within 240nm northeast of trough contracting to within 90nm northeast of trough by 161200UTC, shifting southerly quarter within 300nm southwest of trough. 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 0700 UTC 16 July 2026