WOAU04 AMMC 060548

IDY21030

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

SECURITE

HIGH SEAS WEATHER WARNING FOR METAREA 10

ISSUED BY THE AUSTRALIAN GOVERNMENT BUREAU OF METEOROLOGY

AT 0548UTC 6 SEPTEMBER 2026



STORM FORCE WARNING 4 FOR WESTERN, SOUTHEASTERN AND SOUTHERN AREAS



SITUATION AT 060600UTC

VIGOROUS FLOW ASSOCIATED WITH COLD FRONT 41S094E 57S116E TO LOW 937

HPA NEAR

58S103E WITH WARM FRONT 51S123E 58S117E TO LOW. FORECAST COLD FRONT

46S107E

59S119E 61S108E TO LOW 936 HPA NEAR 58S106E WITH WARM FRONT 51S130E

59S125E

61S109E AT 061200UTC, 47S115E 58S124E 62S120E WITH LOW 927 HPA NEAR

59S113E AND

WEAKENING WARM FRONT 53S137E 60S132E 62S120E AT 061800UTC WITH THE

COLD FRONT

BECOMING WEAKER AS THE VIGOROUS SYNOPTIC WESTERLY FLOW COMBINES WITH

THE LOW

930HPA NEAR 61S117E AT 070000UTC, AND JUST LOW 927HPA NEAR 62S123E AT

070600UTC.



AREA AFFECTED

BOUNDED BY 38S080E 48S140E 63S130E 61S104E 55S090E 55S080E 38S080E.



FORECAST

VIGOROUS WESTERLY QUARTER WINDS SHIFTING NORTHWESTERLY WITHIN 300NM

EAST OF

COLD FRONT AND EASTERLY QUARTER WINDS SOUTH OF WARM FRONT. WIND

SPEEDS 34/47

KNOTS. CLOCKWISE WINDS WITHIN 600NM OF LOW. WINDS INCREASING TO 45/55

KNOTS

WITHIN 300NM OF LOW THROUGH THE NORTHWEST QUADRANT, EXPANDING TO

WITHIN 300NM

OF LOW IN NORTHERN SEMICIRCLE BY 061500UTC. WESTERLY QUARTER WINDS

EASING BELOW

34 KNOTS WEST OF 95E BY 070600UTC. VERY ROUGH TO HIGH SEAS INCREASING

TO VERY

HIGH IN 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 1300 UTC 06 SEPTEMBER 2026=