IDW23200
40:2:2:24:12S103E999:11:00
SECURITE
OCEAN WIND WARNING FOR METAREA 10
ISSUED BY THE AUSTRALIAN BUREAU OF METEOROLOGY
TROPICAL CYCLONE WARNING CENTRE
AT 0051 UTC 22 DECEMBER 2025
STORM FORCE WIND WARNING
PLEASE BE AWARE, WIND GUSTS CAN BE A FURTHER 40 PERCENT STRONGER THAN
THE
AVERAGES GIVEN HERE, AND MAXIMUM WAVES MAY BE UP TO TWICE THE HEIGHT.
SITUATION
AT 0000 UTC TROPICAL LOW WAS CENTRED WITHIN 30 NAUTICAL MILES OF
LATITUDE TWELVE DECIMAL THREE SOUTH (12.3S)
LONGITUDE ONE HUNDRED AND TWO DECIMAL SIX EAST (102.6E)
RECENT MOVEMENT : WEST SOUTHWEST AT 4 KNOTS
MAXIMUM WINDS : 35 KNOTS
CENTRAL PRESSURE: 998 HPA
THE LOW IS EXPECTED TO DEVELOP INTO A TROPICAL CYCLONE IN THE NEXT 12
HOURS.
AREA AFFECTED
WITHIN 60 NAUTICAL MILES OF THE CENTRE.
FORECAST
MAXIMUM WINDS TO 35 KNOTS NEAR THE CENTRE INCREASING TO 50 KNOTS BY
0000 UTC 23
DECEMBER.
FROM 1800 UTC 22 DECEMBER, WINDS ABOVE 48 KNOTS WITHIN 30 NAUTICAL
MILES OF
CENTRE WITH VERY ROUGH SEAS AND MODERATE SWELL.
WINDS ABOVE 34 KNOTS WITHIN 60 NAUTICAL MILES IN NW QUADRANT BY 0600
UTC 22
DECEMBER
AND WITHIN 50 NAUTICAL MILES IN NE QUADRANT
AND WITHIN 60 NAUTICAL MILES IN SE QUADRANT
AND WITHIN 60 NAUTICAL MILES IN SW QUADRANT BY 0600 UTC 22 DECEMBER
WITH
ROUGH SEAS AND MODERATE SWELL.
FORECAST POSITIONS
AT 1200 UTC 22 DECEMBER: WITHIN 50 NAUTICAL MILES OF 12.7 SOUTH 101.7
EAST
CENTRAL PRESSURE 992 HPA.
WINDS TO 45 KNOTS
AT 0000 UTC 23 DECEMBER: WITHIN 65 NAUTICAL MILES OF 12.5 SOUTH 100.8
EAST
CENTRAL PRESSURE 989 HPA.
WINDS TO 50 KNOTS
REMARKS
ALL SHIPS IN THE AREA PLEASE SEND WEATHER REPORTS EVERY THREE HOURS.
REGULAR WEATHER OBSERVING SHIPS USE NORMAL CHANNELS.
OTHER SHIPS PLEASE USE EMAIL TO TCWC@BOM.GOV.AU.
NEXT WARNING WILL BE ISSUED BY 0700 UTC 22 DECEMBER 2025.
AUSTRALIAN BUREAU OF METEOROLOGY
TROPICAL CYCLONE WARNING CENTRE=
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 21 December 2025
Part 1 Warnings
Nil.
Part 2 Situation at 211800 UTC
Trough near 02S145E 18S156E. Forecast trough near 04S146E 12S149E 17S158E at
230000UTC.
Part 3 Forecast
Whole area:
Winds not exceeding 20 knots, except for southeasterly quarter winds 15/25
knots developing within 120nm southwest of New Caledonia between 220600UTC and
221800UTC. Slight to moderate seas, rising to rough in strong winds. Low swell.
Rain areas, isolated showers and isolated thunderstorms mostly within 480nm of
trough, and north of line 15S158E 15S170E. 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 Monday.
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 21 December 2025
Part 1 Warnings
Refer to latest warnings for details of the area affected.
Storm Force Wind Warning issued by TCWC Melbourne for Tropical Low 03U.
Melbourne Final Gale Warning 10.
Melbourne Gale Warning 11.
Part 2 Situation at 211800 UTC
Tropical Low (03U) 998hPa near 12.1S103.0E. Forecast developing into tropical
cyclone 994hPa near 12.2S102.4E at 220600UTC, then cyclone 986hPa near
12.4S101.3E at 230000UTC.
Cold front near 42S075E 50S088E. Forecast cold front exiting area to east near
46S124E 48S129E 50S130E at 222100UTC.
Forecast warm front entering area from west near 46S085E 44S080E at 221200UTC,
then near 49S095E to low [2] 1007hPa entering area near 43S081E at 230000UTC.
Part 3 Forecast
Refer to latest warnings for details of the area affected.
Within 180nm of Tropical Low 03U, outside of warning area:
Clockwise winds around tropical low/cyclone. Wind speeds 20/33 knots. Rough to
very rough seas. Low to moderate swell.
East of line 23S103E 34S110E:
Southeasterly quarter winds 20/30 knots. Rough seas. Moderate swell.
South of line 42S080E 46S100E 41S129E, outside warning areas:
Westerly quarter winds, shifting northwesterly quarter within 300nm east of
cold front and within 180nm north of warm front. Winds turning clockwise within
180nm of low [2]. Wind speeds 20/33 knots. Rough to very rough seas. Moderate
to heavy swell.
Remainder:
Winds not exceeding 25 knots. Slight to moderate seas. Low to moderate swell,
increasing to moderate to heavy east of line 33S106E 45S106E.
Rain areas, scattered showers and isolated thunderstorms mostly within 180nm of
fronts and within 240nm of lows. Heavy at times within 120nm of tropical
low/cyclone. 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 Monday.
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 21 December 2025
Part 1 Warnings
Refer to latest warnings for details of the area affected.
Melbourne Gale Warning 1.
Melbourne Gale Warning 12.
Part 2 Situation at 211800 UTC
Cold front [1] 30S153E 40S155E to low 981hPa near 43S154E. Forecast front [1]
35S158E 41S163E to low 975hPa near 47S158E at 220300UTC, then front [1] east of
area thereafter and low 976hPa exiting area to south near 50S158E at 221200UTC.
Cold front [2] 41S134E 45S138E 50S139E. Forecast front [2] decaying near
43S149E 47S152E 50S150E at 221200UTC.
Trough [1] 38S129E 41S134E. Forecast trough [1] developing into cold front [3]
near 37S139E 43S149E at 221200UTC, then front [3] near 38S151E 42S155E 46S157E
at 230000UTC.
Forecast trough [2] developing near 33S152E 36S157E at 220000UTC, then trough
[2] near 31S154E 36S165E at 230000UTC.
Forecast cold front [4] entering area from west near 46S124E 48S129E 50S130E at
222100UTC, then front [4] near 46S132E 50S134E at 230000UTC.
Part 3 Forecast
Refer to latest warnings for details of the area affected.
South of line 35S167E 36S150E 40S143E 40S129E, outside warning areas:
Westerly quarter winds shifting northerly quarter within 420nm east of front
[1] and northwesterly quarter within 180nm east of fronts [2], [3] and [4].
Winds turning clockwise within 360nm of low. Wind speeds 20/33 knots. Rough to
very rough seas. Low to moderate swell, increasing to moderate to heavy west of
line 40S142E 50S147E.
Remainder:
Winds not exceeding 25 knots. Moderate to rough seas. Low swell to moderate
swell, increasing to moderate to heavy west of line 33S129E 40S142E.
Rain areas, scattered showers and isolated thunderstorms mostly within 240nm of
low and within 180nm of fronts and troughs. Heavy at times within 120nm of low
and 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 08:00 UTC Monday.
40:2:1:31:11:01:00
IDY10240
SECURITE
UPDATED 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 21 DECEMBER 2025
PART 1 WARNINGS
REFER TO LATEST WARNINGS FOR DETAILS OF THE AREA AFFECTED.
STORM FORCE WIND WARNING ISSUED BY TCWC MELBOURNE FOR TROPICAL LOW
03U.
PART 2 SITUATION AT 211800 UTC
TROPICAL LOW (03U) 998HPA NEAR 12.1S103.0E. FORECAST DEVELOPING INTO
TROPICAL
CYCLONE 994HPA NEAR 12.2S102.4E AT 220600UTC, THEN CYCLONE 986HPA
NEAR
12.4S101.3E AT 230000UTC.
TROUGH NEAR EQ091E 08S096E. FORECAST TROUGH NEAR EQ094E 09S101E AT
230000UTC.
PART 3 FORECAST
REFER TO LATEST WARNINGS FOR DETAILS OF THE AREA AFFECTED.
WITHIN 180NM OF TROPICAL LOW/CYCLONE, OUTSIDE WARNING AREA:
CLOCKWISE WINDS AROUND TROPICAL LOW/CYCLONE. WIND SPEEDS 20/33 KNOTS.
ROUGH TO
VERY ROUGH SEAS. LOW TO MODERATE SWELL.
REMAINDER:
WINDS NOT EXCEEDING 20 KNOTS. SLIGHT TO MODERATE SEAS. LOW SWELL,
INCREASING TO
LOW TO MODERATE WEST OF LINE 06S101E 12S110E.
RAIN AREAS, SCATTERED SHOWERS AND ISOLATED THUNDERSTORMS MOSTLY
WITHIN 240NM OF
TROPICAL LOW/CYCLONE, WITHIN 480NM OF TROUGH, AND EAST OF LINE EQ102E
12S117E.
HEAVY AT TIMES WITHIN 180NM OF TROPICAL LOW/CYCLONE, AND IN THE GULF
OF
CARPENTARIA. 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 MONDAY.=