WOAU18 AMMC 212332

IDY21070

40:2:1:04:55S125E35050:01:00

SECURITE

High Seas Weather Warning for METAREA 10

Issued by the Australian Government Bureau of Meteorology

At 2332UTC 21 October 2025



STORM FORCE WIND WARNING 8 FOR SOUTHEASTERN AREA



SITUATION AT 220000UTC

Vigorous flow associated with low pressure system 987hPa near 38.5S140.5E.

Forecast low 989hPa near 39.5S144.5E at 220600UTC, low 995hPa near 39S149E at

221200UTC, low 1002hPa near 38S152E at 221800UTC, then weakening.



AREA AFFECTED

Bounded by 37S137E 40S137E 42S144E 38S155E 35S153E 38S143E 36S139E 37S137E.



FORECAST

Clockwise winds 34/47 knots within 240nm of low.

Clockwise winds increasing to 48/55 knots within 60nm of low in the northwest

quadrant. Winds associated with low decreasing below 47 knots by 220600UTC.

Winds may reach 50 knots within 60nm of line 38.5S148E 38S151E from 220900UTC

till 221500UTC. Very rough to high seas rising to very high with storm force

winds. 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 0600 UTC 22 October 2025