WOAU45 AMMC 171758

IDY21040

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

SECURITE

HIGH SEAS WEATHER WARNING FOR METAREA 10

ISSUED BY THE AUSTRALIAN GOVERNMENT BUREAU OF METEOROLOGY

AT 1758UTC 17 JULY 2026



STORM FORCE WIND WARNING 5 FOR SOUTHERN AREA



SITUATION AT 171800UTC

VIGOROUS FLOW ASSOCIATED WITH COLD FRONT NEAR 58S138E 60S142E 62S142E

TO LOW

967HPA NEAR 64S138E. FORECAST 53S151E 58S154E 62S155E TO LOW 960HPA

NEAR

64S151E AT 180000UTC, THEN 51S169E 58S170E 61S168E TO LOW 959HPA NEAR

63S162E

AT 180600UTC, AND THEN FRONT EAST OF AREA AFTERWARDS WITH VIGOROUS

SOUTHWESTERLY WINDS REMAINING.



AREA AFFECTED

BOUNDED BY 53S149E 51S160E 64S160E 63S121E 53S149E.



FORECAST

NORTHWESTERLY QUARTER WINDS WITHIN 180NM EAST OF COLD FRONT, SHIFTING

WESTERLY

QUARTER WITHIN 960NM WEST OF COLD FRONT. WIND SPEEDS 34/47 KNOTS,

INCREASING TO

45/55 KNOTS WITHIN 300NM OF LOW IN THE NORTHWESTERN QUADRANT OF LOW

FROM

172100UTC AND EASING BELOW 48 KNOTS THROUGHOUT BY 180600UTC. FRONT

MOVING EAST

OF AREA WITH VIGOROUS WESTERLIES CONTINUING IN ITS WAKE EAST OF LINE

51S151E

63S137E FROM 180600UTC AND GALES CONTRACTING TO EAST OF LINE 55S160E

59S153E

63S153E AT 181800UTC. VERY ROUGH TO HIGH SEAS, RISING TO VERY HIGH

SEAS 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 0100 UTC 18 JULY 2026=