WOAU20 AMMC 170540

IDY21090

40:2:1:04:70S125E35045:01:00

SECURITE

HIGH SEAS WEATHER WARNING FOR METAREA 10

ISSUED BY THE AUSTRALIAN GOVERNMENT BUREAU OF METEOROLOGY

AT 0540UTC 17 APRIL 2026



GALE WARNING 10 FOR SOUTHERN AND SOUTHEASTERN AREAS



SITUATION AT 170600UTC

VIGOROUS FLOW ASSOCIATED WITH LOW 973HPA NEAR 52S158E. FORECAST LOW

977HPA NEAR

50S159E AT 171200UTC, LOW 980HPA NEAR 48S160E AT 171800UTC, LOW

981HPA NEAR

46S161E AT 180000UTC, LOW 986HPA NEAR 45S162E AT 180600UTC.



AREA AFFECTED

BOUNDED BY 41S149E 38S153E 38S160E 57S160E 53S142E 41S149E.



FORECAST

CLOCKWISE WINDS WITHIN 720NM OF LOW IN WESTERN SEMICIRCLE,

CONTRACTING TO

WITHIN 540NM OF LOW IN WESTERN SEMICIRCLE BY 180000UTC. WIND SPEEDS

30/40

KNOTS, INCREASING TO 34/47 KNOTS WITHIN 300NM OF LOW IN WESTERN

QUADRANT AFTER

171200UTC. ROUGH TO VERY ROUGH SEAS RISING UP TO HIGH SEAS WITHIN

300NM OF LOW

AFTER 171200UTC. 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=