IDY21050 40:2:1:04:70S100E35060:01:00 SECURITE High Seas Weather Warning for METAREA 10 Issued by the Australian Government Bureau of Meteorology At 1814UTC 20 October 2025 GALE WARNING 6 FOR WESTERN, SOUTHEASTERN AND SOUTHERN AREAS SITUATION AT 201800UTC Vigorous flow associated with low 981hPa near 52S135E. Forecast low 981hPa near 51S144E at 210000UTC, 980hPa near 51S150E at 210600UTC, 980hPa near 50S159E at 211200UTC, and 980hPa near 50S166E at 211800UTC. AREA AFFECTED Bounded by 51S128E 50S160E 45S160E 44S147E 48S123E 51S128E. FORECAST Clockwise winds 30/40 knots within 420nm of low in northern semicircle. Winds easing below 34 knots by 211800UTC. 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 21 October 2025
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