WOAU03 AMMC 170556

IDY21020

40:2:1:04:70S075E35060:01:00

SECURITE

High Seas Weather Warning for METAREA 10

Issued by the Australian Government Bureau of Meteorology

At 0556UTC 17 April 2026



GALE WARNING 3 FOR SOUTHERN AND WESTERN AREAS



SITUATION AT 170600UTC

Vigorous flow associated with strengthening trough 47S092E 52S095E 56S092E.

Forecast near 46S101E 52S102E 55S098E at 171200UTC, then developing into cold

front 45S105E 50S108E 54S106E at 171800UTC, then 42S107E 50S113E 53S112E at

180000UTC, and 41S109E 48S117E 51S117E at 180600UTC.



AREA AFFECTED

Bounded by 39S112E 48S120E 58S080E 45S080E 39S112E.



FORECAST

Southwesterly quarter winds 34/47 knots west of trough/cold front, shifting

northwesterly quarter within 180nm east of trough/cold front. Very rough to

high 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 1300 UTC 17 April 2026