WOAU42 AMMC 131141

IDY21010

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

SECURITE

HIGH SEAS WEATHER WARNING FOR METAREA 10

ISSUED BY THE AUSTRALIAN GOVERNMENT BUREAU OF METEOROLOGY

AT 1141UTC 13 AUGUST 2025



GALE WARNING 2 FOR WESTERN, SOUTHEASTERN, AND SOUTHERN AREAS



SITUATION AT 131200UTC

VIGOROUS FLOW ASSOCIATED WITH COLD FRONT 33S114E 42S118E. FORECAST

35S120E

49S126E AT 131800UTC, 37S128E TO DEVELOPING LOW 973HPA NEAR 51S128E

AT

140000UTC, 38S133E 50S134E TO LOW 953HPA NEAR 53S132E AT 140600UTC,

AND 37S136E

42S139E 53S140E TO LOW 940HPA NEAR 56S135E AT 141200UTC.



AREA AFFECTED

BOUNDED BY 38S113E 34S114E 40S140E 44S147E 53S153E 62S144E 61S134E

58S122E

38S113E.



FORECAST

NORTHWESTERLY QUARTER WINDS 30/40 KNOTS WITHIN 240NM WEST OF FRONT,

EXPANDING

TO WITHIN 480NM EAST OF COLD FRONT FROM 131500UTC, EXPANDING TO

WITHIN 420NM

WEST OF COLD FRONT FROM 131800UTC AND INCREASING TO WITHIN 880NM WEST

OF COLD

FRONT FROM 140000UTC. CLOCKWISE WINDS 34/47 KNOTS DEVELOPING WITHIN

630NM OF

THE LOW IN ALL BUT THE SOUTHERN QUADRANT FROM 140000UTC, SPREADING TO

INCLUDE

THE SOUTHERN QUADRANT FROM 140600UTC. ROUGH TO VERY ROUGH SEAS,

INCREASING TO

HIGH SEAS WITH CLOCKWISE 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 1900 UTC 13 AUGUST 2025=