IDY10210
SECURITE
High Seas Forecast for South Eastern METAREA 10
SOUTH EASTERN AREA: COAST AT 25S TO 25S170E TO 29S170E TO 45S160E TO 50S160E TO
50S129E TO COAST AT 129E
Issued by the Australian Government Bureau of Meteorology
For 24 hours commencing 1100 UTC 9 December 2025
Part 1 Warnings
Refer to latest warnings for details of the area affected.
Melbourne Gale Warning 5.
Part 2 Situation at 090600 UTC
Trough near 34S151E 44S161E. Forecast near 32S152E 36S155E 37S160E 40S165E at
100000UTC, and weakening thereafter.
Cold front near 45S129E 47S131E 49S129E at 090600UTC. Forecast near 44S151E
50S156E at 101200UTC.
Part 3 Forecast
Refer to latest warnings for details of the area affected.
South of line 44S129E 43S152E 45S160E, outside of warning areas:
Westerly quarter winds, shifting northwesterly quarter east of cold front and
southwesterly quarter west of cold front. Wind speeds 20/33 knots. Rough to
very rough seas. Moderate to heavy swell.
North of line 34S134E 33S129E:
Southeasterly quarter winds. Wind speeds 20/30 knots. Rough seas. Low to
moderate swell.
Remainder:
Winds not exceeding 25 knots. Moderate to rough seas. Low to moderate swell,
rising to heavy swell south of line 39S137E 39S144E 41S163E.
Rain areas, scattered showers and isolated thunderstorms mostly within 180nm of
trough and front. Visibility reducing below 2nm in precipitation.
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.
WEATHER MELBOURNE
The next routine forecast will be issued at 20:00 UTC Tuesday.
IDY10220
SECURITE
High Seas Forecast for Western METAREA 10
12S TO 30S BETWEEN 90E AND 125E, AND 30S TO 50S BETWEEN 80E AND 129E
Issued by the Australian Government Bureau of Meteorology
For 24 hours commencing 1100 UTC 9 December 2025
Part 1 Warnings
Refer to latest warnings for details of the area affected.
Melbourne Gale Warning 9.
Part 2 Situation at 090600 UTC
Cold front near 39S083E 47S100E 50S101E. Forecast near 41S106E 50S121E at
101200UTC.
Warm front near 46S113E 50S108E. Forecast near 49S120E 50S119E at 091800UTC,
then exiting east of area.
Part 3 Forecast
Refer to latest warnings for details of the area affected.
South of 40S080E 39S100E 46S129E, outside warning areas:
Westerly quarter winds, shifting northwesterly quarter east of cold front and
northeasterly quarter south of warm front. Wind speeds 20/33 knots. Rough to
very rough seas. Moderate to heavy swell.
Remainder:
Winds not exceeding 25 knots. Moderate to rough seas. Low to moderate swell.
Rain areas, scattered showers and isolated thunderstorms mostly within 120nm of
cold front. Visibility reducing below 2nm in precipitation.
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.
WEATHER MELBOURNE
The next routine forecast will be issued at 20:00 UTC Tuesday.
IDY10230
SECURITE
High Seas Forecast for North Eastern METAREA 10
NORTHEASTERN AREA: EQUATOR TO 25S, 142E TO 170E
Issued by the Australian Government Bureau of Meteorology
For 24 hours commencing 1100 UTC 9 December 2025
Part 1 Warnings
Nil.
Part 2 Situation at 090600 UTC
Trough near 11S144E 11S152E 06S161E 06S170E. Forecast slow moving.
Part 3 Forecast
West of line 16S161E 24S167E:
Southeasterly quarter winds 15/25 knots. Moderate to rough seas. Low swell.
Remainder:
Winds not exceeding 20 knots. Slight to moderate seas. Low swell.
Rain areas, isolated showers and isolated thunderstorms throughout. Visibility
reducing below 2nm in precipitation.
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.
WEATHER MELBOURNE
The next routine forecast will be issued at 20:00 UTC Tuesday.
40:2:1:31:11:01:00
IDY10240
SECURITE
HIGH SEAS FORECAST FOR NORTHERN METAREA 8/10/11
NORTHERN AREA: EQUATOR TO 12S, 90E TO 142E AND SOUTHWARD TO COAST,
125E TO 142E
ISSUED BY THE AUSTRALIAN GOVERNMENT BUREAU OF METEOROLOGY
FOR 24 HOURS COMMENCING 1100 UTC 9 DECEMBER 2025
PART 1 WARNINGS
NIL.
PART 2 SITUATION AT 090600 UTC
TROUGH NEAR 07S090E 05S094E 05S102E. FORECAST SLOW MOVING.
PART 3 FORECAST
WITHIN 60NM OF LINE 03S100E 01S092E:
WESTERLY QUARTER WINDS 15/25 KNOTS. MODERATE TO ROUGH SEAS. LOW
SWELL.
REMAINDER:
WINDS NOT EXCEEDING 20 KNOTS. SLIGHT TO MODERATE SEAS. LOW SWELL.
RAIN AREAS, SCATTERED SHOWERS AND ISOLATED THUNDERSTORMS MAINLY
THROUGHOUT
EXCEPT SOUTH OF LINE 08S092E 08S111E. VISIBILITY REDUCING BELOW 2NM
IN
PRECIPITATION.
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.
WEATHER MELBOURNE
THE NEXT ROUTINE FORECAST WILL BE ISSUED AT 19:15 UTC TUESDAY.=