WOAU44 AMMC 172358

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 2358UTC 17 SEPTEMBER 2025



GALE WARNING 4 FOR SOUTHERN AND WESTERN AREAS



SITUATION AT 180000UTC

VIGOROUS WESTERLY FLOW ASSOCIATED WITH DEVELOPING LOW 977HPA NEAR

52S077E.

FORECAST LOW 972HPA NEAR 55S081E AT 180600UTC, LOW 964HPA NEAR

57S088E AT

181200UTC, LOW 962HPA NEAR 59S094E AT 181800UTC, AND LOW 965HPA NEAR

59S103E AT

190000UTC.



AREA AFFECTED

BOUNDED BY 50S080E 53S095E 54S110E 59S103E 59S092E 55S080E 50S080E.



FORECAST

WESTERLY QUARTER WINDS 30/40 KNOTS WITHIN 360NM OF LOW IN NORTHERN

SEMICIRCLE,

INCREASING TO 34/47 KNOTS FROM 181200UTC. 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=