IDW23100
40:2:2:24:11S091E999:11:00
SECURITE
OCEAN WIND WARNING FOR METAREA 10
Issued by the Australian Bureau of Meteorology
Tropical Cyclone Warning Centre
at 0055 UTC 18 DECEMBER 2025
GALE 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 Ex-Tropical Cyclone Bakung was centred within 30 nautical miles of
latitude ten decimal nine south (10.9S)
longitude ninety decimal nine east (90.9E)
Recent movement : northwest at 6 knots
Maximum winds : 35 knots
Central pressure: 999 hPa
AREA AFFECTED
Within 40 nautical miles of the centre in the SW quadrant.
FORECAST
Maximum winds to 35 knots near the centre easing to 30 knots by 0600 UTC 18
December.
Winds above 34 knots within 40 nautical miles in SW quadrant with very rough
seas and moderate swell.
Forecast positions
At 1200 UTC 18 December: Within 50 nautical miles of 10.4 south 90.0 east
Central pressure 1003 hPa.
Winds to 30 knots near centre.
At 0000 UTC 19 December: Within 65 nautical miles of 9.4 south 88.9 east
Central pressure 1005 hPa.
Winds to 25 knots near centre.
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 18 December 2025.
AUSTRALIAN BUREAU OF METEOROLOGY
TROPICAL CYCLONE WARNING CENTRE
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 17 December 2025
Part 1 Warnings
Refer to latest warnings for details of the area affected.
Nil.
Part 2 Situation at 171800 UTC
Cold front 45S142E 48S154E 50S160E. Forecast 44S161E 48S172E 51S174E at
181200UTC, east of area.
Trough 38S130E 42S136E 44S142E. Forecast trough 38S130E 42S136E 44S142E at
190000UTC.
Part 3 Forecast
Refer to latest warnings for details of the area affected.
West of line 39S146E 45S147E:
Southeasterly quarter winds within 180nm southwest of trough. Wind speeds
20/33 knots. Moderate to rough seas. Moderate swell.
South of line:48S150E 48S160E:
Southwesterly quarter winds southwest of cold front. Wind speeds 20/33 knots.
Moderate to rough seas. Moderate swell.
Remainder:
Winds not exceeding 25 knots. Sea fog possible within 40S140E 45S140E 45S146E
40S144E 40S140E until 180300UTC. Slight to moderate seas. Low to moderate swell.
Rain areas, scattered showers and isolated thunderstorms mostly within 240nm.
Visibility reducing below 2nm in precipitation and sea fog.
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 Thursday.
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 17 December 2025
Part 1 Warnings
Refer to latest warnings for details of the area affected.
Gale Warning issued by TCWC for Tropical Cyclone "Bakung".
Melbourne Gale Warning 9.
Part 2 Situation at 171800 UTC
Tropical Cyclone 'Bakung' 997hPa near 11.4S091.4E. Forecast Tropical Cyclone
'Bakung' 1005hPa near 8.8S088.9E at 190000UTC.
Tropical Low (03U) 1000hPa near 12.9S112.3E. Forecast low 1000hPa near
13.0S110.3E at 190000UTC.
Cold front 40S080E 50S100E. Forecast 36S102E 41S112E 50S118E at 190000UTC.
Forecast warm front near 49S077E 54S073E 55S060E at 181500UTC, entering from
west, then near 48S089E 54S083E 58S071E at 190000UTC.
Part 3 Forecast
Refer to latest warnings for details of the area affected.
North of 16S, outside warning areas:
Clockwise winds 20/33 knots within 240nm of Tropical Cyclone 'Bakung' and 20/30
knots within 240nm of Tropical Low (03U). Rough seas. Low to moderate swell.
South of line 43S080E 41S097E 48S125E:
Northwesterly quarter winds east of front [2], shifting westerly quarter within
960nm west of front, shifting northwesterly quarter northwest of warm front.
Wind speeds 20/33 knots. Moderate to rough seas. Moderate to heavy swell.
Area enclosed by 22S115E 22S108E 35S112E 35S116E, outside warning area:
Southeasterly quarter winds. Wind speed 20/33 knots. Moderate to rough seas.
Moderate swell.
Remainder:
Winds not exceeding 25 knots. Slight to moderate seas. Low to moderate swell.
Rain areas, scattered showers and isolated thunderstorms mostly within 240nm of
fronts and 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 Thursday.
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 17 December 2025
Part 1 Warnings
Nil.
Part 2 Situation at 171800 UTC
Trough near 01S144E 10S156E 13S170E. Forecast slow moving.
Part 3 Forecast
South of line 18S148E 18S170E:
Southeasterly quarter winds 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 mainly north of 21S.
Heavy at times within 60nm of trough and east of 164E. 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 Thursday.
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 17 DECEMBER 2025
PART 1 WARNINGS
REFER TO LATEST WARNINGS FOR DETAILS OF THE AREA AFFECTED.
GALE WARNING ISSUED BY TCWC FOR TROPICAL CYCLONE "BAKUNG".
PART 2 SITUATION AT 171800 UTC
TROPICAL CYCLONE 'BAKUNG' 997HPA NEAR 11.4S091.4E. FORECAST TROPICAL
CYCLONE
'BAKUNG' 1005HPA NEAR 8.8S088.9E AT 190000UTC.
TROPICAL LOW (03U) 1000HPA NEAR 12.9S112.3E. FORECAST LOW 1000HPA
NEAR
13.0S110.3E AT 190000UTC.
TROPICAL LOW (07U) 1004HPA NEAR 09S136E. FORECAST 1006HPA NEAR
13S137E AT
190000UTC.
PART 3 FORECAST
REFER TO LATEST WARNINGS FOR DETAILS OF THE AREA AFFECTED.
WHOLE AREA, OUTSIDE WARNING AREAS:
CLOCKWISE WINDS 20/33 KNOTS WITHIN 240NM OF TROPICAL CYCLONE 'BAKUNG'
AND 20/30
KNOTS WITHIN 240NM OF TROPICAL LOW (03U) AND 20/30 KNOTS WITHIN 120NM
OF
TROPICAL LOW (07U). ROUGH SEAS. LOW TO MODERATE SWELL.
REMAINDER:
WINDS NOT EXCEEDING 20 KNOTS. SLIGHT TO MODERATE SEAS. LOW SWELL.
RAIN AREAS, SCATTERED SHOWERS AND ISOLATED THUNDERSTORMS THROUGHOUT,
HEAVY AT
TIMES WITHIN 180NM 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 07:15 UTC THURSDAY.=