IDW23200
40:2:2:24:13S107E999:11:00
SECURITE
OCEAN WIND WARNING FOR METAREA 10
Issued by the Australian Bureau of Meteorology
Tropical Cyclone Warning Centre
at 0655 UTC 20 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 0600 UTC Tropical Low was centred within 30 nautical miles of
latitude twelve decimal six south (12.6S)
longitude one hundred and six decimal nine east (106.9E)
Recent movement : west southwest at 6 knots
Maximum winds : 30 knots
Central pressure: 1001 hPa
AREA AFFECTED
Within 60 nautical miles in SW quadrant
and within 50 nautical miles in NW quadrant.
FORECAST
Maximum winds to 30 knots near the centre.
Winds above 34 knots within 50 nautical miles in NW quadrant
and within 60 nautical miles in the SW quadrant developing around 0000
UTC 21 December with rough seas and moderate swell.
Forecast positions
At 1800 UTC 20 December: Within 50 nautical miles of 12.8 south 105.6 east
Central pressure 1001 hPa.
Winds to 30 knots
At 0600 UTC 21 December: Within 60 nautical miles of 12.9 south 104.4 east
Central pressure 998 hPa.
Winds to 35 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 1300 UTC 20 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 1100 UTC 20 December 2025
Part 1 Warnings
Nil.
Part 2 Situation at 200600 UTC
Trough 36S150E 38S152E 44S152E to low [1] 998hPa near 45S149E. Forecast trough
45S155E 48S153E to low [1] 996hPa near 49S151E at 211200UTC.
Cold front forecast entering area from west near 48S129E 50S130E at 210300UTC.
Forecast 41S129E 47S135E 50S136E at 211200UTC.
Low [2] forecast to develop 994hPa near 38S148E at 210600UTC, and low [2]
987hPa near 41S150E at 211200UTC.
Low [3] 1002hPa near 37S129E. Forecast low [3] 1003hPa near 36S138E at
210000UTC, and weakening thereafter.
Part 3 Forecast
North of line 38S129E 36S139E:
Clockwise winds 20/30 knots. Rough seas. Moderate swell.
Within 360nm in northern semicircle of low [2]:
Clockwise winds 20/30 knots. Rough seas. Moderate swell.
West of line 28S155E 34S160E 37S160E:
Northerly quarter winds 20/30 knots from 210300UTC. Rough seas. Low swell.
South of line 46S149E 42S157E 42S160E:
Clockwise winds 20/30 knots around low [1]. Rough seas. Low to moderate swell.
Remainder:
Winds not exceeding 25 knots. Moderate to rough seas. Low swell to moderate
swell.
Rain areas, scattered showers and isolated thunderstorms mostly within 180nm of
lows, trough, and 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 Saturday.
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 20 December 2025
Part 1 Warnings
Nil.
Part 2 Situation at 200600 UTC
Trough near 09S152E 13S168E. Forecast near 07S148E 15S159E at 211200UTC.
Part 3 Forecast
Whole of area:
Winds not exceeding 20 knots. Slight to moderate seas. Low swell.
Rain areas, isolated showers and isolated thunderstorms throughout area. Heavy
at times within 180nm 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 20:00 UTC Saturday.
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 20 December 2025
Part 1 Warnings
Refer to latest warnings for details of the area affected.
Gale Wind Warning for Tropical Low '03U', issued by the TCWC, Australia.
Melbourne Storm Force Wind Warning 10.
Melbourne Gale Warning 12.
Part 2 Situation at 200600 UTC
Tropical Low (03U) 1001hPa near 12.4S106.8E. Forecast Tropical Low 998hPa near
12.6S103.9E at 211200UTC.
Low [1] 1002hPa near 38S126E. Forecast low [1] 1002hPa near 37S129E at
201200UTC, and east of area thereafter.
Cold front near 43S101E 48S114E 50S116E. Forecast cold front near 38S119E
41S129E at 211200UTC.
Part 3 Forecast
Refer to latest warnings for details of the area affected.
East of line 22S105E 27S105E 34S114E:
Southeasterly quarter winds. Wind speeds 20/30 knots. Moderate to rough seas.
Moderate swell.
Within 420nm of low [1], outside warning area:
Clockwise winds 20/33 knots. Rough to very rough seas. Moderate to heavy swell.
Within 180nm of Tropical low (03U), outside of warning area:
Clockwise winds 20/33 knots. Rough to very rough seas. Low to moderate swell.
Within 300nm of line 22S090E 28S114E:
Southeasterly quarter winds 20/30 knots. Rough seas. Moderate swell.
South of line 41S080E 47S091E 37S115E 42S129E, outside warning areas:
Northwesterly quarter winds, shifting southwesterly quarter within 1080nm west
of cold front [1]. 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 swell south of line 44S087E 36S110E.
Rain areas, scattered showers and isolated thunderstorms mostly within 240nm of
front and lows. Heavy at times within 150nm of Tropical low (03U). 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 Saturday.
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 20 DECEMBER 2025
PART 1 WARNINGS
REFER TO LATEST WARNINGS FOR DETAILS OF THE AREA AFFECTED.
GALE WIND WARNING FOR TROPICAL LOW '03U', ISSUED BY THE TCWC,
AUSTRALIA.
PART 2 SITUATION AT 200600 UTC
TROPICAL LOW (03U) 1001HPA NEAR 12.4S106.8E. FORECAST TROPICAL LOW
998HPA NEAR
12.6S103.9E AT 211200UTC.
PART 3 FORECAST
REFER TO LATEST WARNINGS FOR DETAILS OF THE AREA AFFECTED.
SOUTH OF LINE 02S090E 07S109E 12S109E, OUTSIDE WARNING AREA:
NORTHWESTERLY WINDS 15/25 KNOTS, TURNING CLOCKWISE WITHIN 300NM OF
TROPICAL LOW
(03U), AND REACHING UP TO 33 KNOTS WITHIN 150NM OF LOW. 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 SWELL SOUTH OF LINE 07S109E 09S111E.
RAIN AREAS, SCATTERED SHOWERS AND ISOLATED THUNDERSTORMS THROUGHOUT,
HEAVY AT
TIMES WITHIN 240NM OF TROPICAL LOW (03U), AND SOUTH OF LINE 12S142E
12S135E.
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 SATURDAY.=