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 2300 UTC 1 December 2025
Part 1 Warnings
Refer to latest warnings for details of the area affected.
Melbourne Gale Warning 10.
Part 2 Situation at 011800 UTC
Trough [1] forecast to develop near 45S130E 49S135E at 020300UTC, 49S143E
51S145E at 021500UTC and south of area thereafter.
Warm front 48S142E 50S140E. Forecast 48S157E 50S157E at 030000UTC.
Trough [2] 33S153E 39S158E. Forecast 32S165E 35S172E at 030000UTC.
Cold front 28S154E to low 1001hPa near 32S157E. Forecast 26S164E to low 993hPa
near 36S168E at 021200UTC, low east of area thereafter. Cold front near 25S169E
32S174E at 030000UTC.
Part 3 Forecast
North of line 39S149E 37S165E:
Southwesterly quarter winds shifting northwesterly quarter east of cold front
and turning clockwise within 180nm of low [1], expanding to within 420nm of low
from 020600UTC. Wind speeds 20/33 knots. Rough to very rough seas. Low to
moderate swell.
South of line 42S129E 42S145E 46S155E 50S155E, outside of warning areas:
Westerly quarter winds, shifting northerly quarter within 240nm east of warm
front, and shifting northwesterly quarter within 180nm east of trough [2]. Wind
speeds 20/33 knots. Rough to very rough seas. Moderate swell.
Remainder:
Winds not exceeding 25 knots. Moderate to rough seas. Low to moderate swell.
Rain areas, scattered showers and isolated thunderstorms mostly within 300nm of
trough [2], cold front and low, within 240nm of trough [1] and warm 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 08:00 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 2300 UTC 1 December 2025
Part 1 Warnings
Refer to latest warnings for details of the area affected.
Melbourne Gale Warning 10.
Melbourne Gale Warning 11.
Melbourne Gale Warning 12.
Part 2 Situation at 011800 UTC
Low [1] 1011hPa near 25S110E. Forecast 1012hPa near 23S107E at 021200UTC.
Cold front near 42S087E 47S095E to low [2] 984hPa near 49S090E. Forecast near
41S117E 47S124E to low [2] 982hPa near 48S118E at 030000UTC.
Trough near 44S114E 49S105E. Forecast near 44S122E 47S115E at 020600UTC and
weakening thereafter.
Part 3 Forecast
Refer to latest warnings for boundary of affected area and type of weather
system:
South of line 38S080E 38S117E 42S129E, outside of warning area:
Westerly quarter winds shifting northwesterly quarter within 360nm east of cold
front, shifting southwesterly quarter within 240nm west of trough and cold
front and turning clockwise within 240nm of low. 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 180nm of
trough, cold front, and within 240nm of lows. 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 08:00 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 2300 UTC 1 December 2025
Part 1 Warnings
Nil.
Part 2 Situation at 011800 UTC
Trough near 21S149E 25S153E. Forecast near 21S164E 25S169E at 030000UTC.
Part 3 Forecast
South of line 18S146E 19S159E 24S170E:
Northwesterly quarter winds shifting southwesterly quarter winds west of
trough. Wind speeds 15/25 knots. Moderate to rough seas. Low to moderate swell.
Remainder:
Winds not exceeding 20 knots. Slight to moderate seas. Low swell.
Rain areas, isolated showers and isolated thunderstorms throughout area, heavy
at times within 60nm of trough. 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 08:00 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 2300 UTC 1 DECEMBER 2025
PART 1 WARNINGS
NIL.
PART 2 SITUATION AT 011800 UTC
TROUGH NEAR 04S099E 05S090E. FORECAST SLOW MOVING.
TROUGH [2] NEAR 10S127E 09S131E 09S136E. FORECAST 09S128E 07S131E
08S137E AT
030000UTC.
PART 3 FORECAST
WHOLE AREA.
WINDS NOT EXCEEDING 20 KNOTS. SLIGHT TO MODERATE SEAS. LOW SWELL,
INCREASING TO
LOW TO MODERATE SOUTH OF LINE 06S090E 05S103E 12S116E.
RAIN AREAS, SCATTERED SHOWERS AND ISOLATED THUNDERSTORMS THROUGHOUT
AREA EXCEPT
SOUTH OF LINE 12S119E 07S103E 11S097E 10S090E, AND SOUTH OF TROUGH
[2].
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 07:15 UTC TUESDAY.=