WOAU61 AMMC 172358

IDY21092

40:2:1:04:70S100E35060:01:00

SECURITE

HIGH SEAS WEATHER WARNING FOR METAREA 10

ISSUED BY THE AUSTRALIAN GOVERNMENT BUREAU OF METEOROLOGY

AT 2358UTC 17 SEPTEMBER 2025



GALE WARNING 12 FOR WESTERN, SOUTHEASTERN AND SOUTHERN AREAS



SITUATION AT 180000UTC

VIGOROUS FLOW ASSOCIATED WITH COLD FRONT 42S123E 47S128E 50S128E.

FORECAST

43S128E 49S134E 54S134E AT 180600UTC, 46S136E 50S140E 57S140E AT

181200UTC,

56S147E 58S144E AT 181800UTC, AND SOUTH OF AREA BY 190000UTC.



AREA AFFECTED

BOUNDED BY 50S124E 41S122E 45S138E 59S152E 60S148E 50S124E.



FORECAST

NORTHWESTERLY QUARTER WINDS 34/47 KNOTS WITHIN 180NM EAST OF FRONT,

BECOMING

NORTHERLY QUARTER BY 180600UTC. WESTERLY QUARTER WINDS 30/40 KNOTS

WITHIN 120NM

WEST OF FRONT. WINDS EASING BELOW 34 KNOTS THROUGHOUT FROM 182100UTC.

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 18 SEPTEMBER 2025=