IDW23200
40:2:2:24:12S097E999:11:00
SECURITE
OCEAN WIND WARNING FOR METAREA 10
Issued by the Australian Bureau of Meteorology
Tropical Cyclone Warning Centre
at 0055 UTC 25 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 Cyclone Grant was centred within 20 nautical miles of
latitude eleven decimal nine south (11.9S)
longitude ninety six decimal six east (96.6E)
Recent movement : west at 7 knots
Maximum winds : 40 knots
Central pressure: 995 hPa
AREA AFFECTED
Within 30 nautical miles in NE quadrant
and within 50 nautical miles in SE quadrant
and within 50 nautical miles in SW quadrant
and within 40 nautical miles in NW quadrant.
FORECAST
Maximum winds to 40 knots near the centre increasing to 50 knots by 0000 UTC 26
December.
From 2100 UTC 25 December Winds above 48 knots within 20 nautical miles of
centre in SW quadrant with very rough seas.
Winds above 34 knots within 30 nautical miles in NE quadrant
and within 50 nautical miles in SE quadrant
and within 50 nautical miles in SW quadrant
and within 30 nautical miles in NW quadrant with rough seas and moderate
swell.
Forecast positions
At 1200 UTC 25 December: Within 40 nautical miles of 12.0 south 95.3 east
Central pressure 994 hPa.
Winds to 40 knots
At 0000 UTC 26 December: Within 55 nautical miles of 11.7 south 94.0 east
Central pressure 988 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 25 December 2025.
AUSTRALIAN BUREAU OF METEOROLOGY
TROPICAL CYCLONE WARNING CENTRE
IDY10220
SECURITE
Updated 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 24 December 2025
Part 1 Warnings
Refer to latest warnings for details of the area affected.
Gale Warning issued by TCWC Melbourne for Tropical Cyclone "Grant".
Part 2 Situation at 241800 UTC
Tropical Cyclone "Grant" 997hPa near 11.9S97.4E. Forecast Tropical Cyclone
"Grant" 980hPa near 11.8S93.9E at 260000UTC.
Low [2] 1003hPa near 15S117E. Forecast low [2] 1006hPa near 13S118E at
260000UTC.
Cold front 37S099E 50S110E. Low [1] 996hPa forecast to develop near 42S113E at
251500UTC, and cold front 35S119E to low [1] 989hPa near 42S114E to cold front
50S118E at 260000UTC.
Forecast trough entering from west near 44S080E 50S079E. Forecast near 45S099E
50S102E at 260000UTC.
Part 3 Forecast
Refer to latest warnings for boundary of affected area and type of weather
system.
Within 240nm of Tropical Cyclone "Grant", outside of warning area:
Clockwise winds around Tropical Cyclone "Grant". Wind speeds 20/33 knots. Rough
to very rough seas. Moderate to heavy swell.
South of line 32S094E 29S115E:
Southwesterly quarter winds, shifting northwesterly quarter east of cold front,
and westerly quarter west of trough. Wind speeds 20/30 knots. Rough seas.
Moderate to heavy swell.
South of line 32S094E 29S115E:
Westerly quarter winds 20/30 knots. 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 180nm of
front and low, and east of line 12S112E 18S112E. Heavy at times within 180nm of
Tropical Cyclone "Grant". 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 24 December 2025
Part 1 Warnings
Nil.
Part 2 Situation at 241800 UTC
Nil significant features.
Part 3 Forecast
Whole area:
Winds not exceeding 20 knots. Slight to moderate seas. Low swell.
Rain areas, isolated showers and isolated thunderstorms throughout except south
of line 19S155E 16S160E 18S163E and north of line 01S156E 06S161E 06S170E.
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.
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 24 December 2025
Part 1 Warnings
Refer to latest warnings for details of the area affected.
Melbourne Gale Warning 12.
Part 2 Situation at 241800 UTC
Cold front 32S153E 41S167E 46S160E to low 985hPa near 46S158E. Forecast cold
front 25S155E 32S168E 40S175E to low 989hPa near 48S166E at 260000UTC.
Part 3 Forecast
Refer to latest warnings for boundary of affected area and type of weather
system.
East of line 50S138E 40S143E 28S156E 28S164E outside warning areas:
Southwesterly quarter winds, shifting northwesterly quarter east of cold front,
tending clockwise within 180nm 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 swell to moderate
swell, increasing to moderate to heavy east of line 37S139E 42S139E.
Rain areas, scattered showers and isolated thunderstorms mostly within 180nm of
front, and low. Heavy at times within 60nm of line 25S154E 32S168E. 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
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 24 DECEMBER 2025
PART 1 WARNINGS
REFER TO LATEST WARNINGS FOR DETAILS OF THE AREA AFFECTED.
GALE WARNING ISSUED BY TCWC MELBOURNE FOR TROPICAL CYCLONE "GRANT".
PART 2 SITUATION AT 241800 UTC
TROPICAL CYCLONE "GRANT" 997HPA NEAR 11.9S97.4E. FORECAST TROPICAL
CYCLONE
"GRANT" 980HPA NEAR 11.8S93.9E AT 260000UTC.
PART 3 FORECAST
REFER TO LATEST WARNINGS FOR BOUNDARY OF AFFECTED AREA AND TYPE OF
WEATHER
SYSTEM.
WITHIN 120NM OF TROPICAL CYCLONE GRANT, OUTSIDE WARNING AREA:
CLOCKWISE WINDS AROUND TROPICAL CYCLONE GRANT. WIND SPEEDS 20/33
KNOTS. ROUGH
TO VERY ROUGH SEAS. MODERATE TO HEAVY SWELL.
WEST OF LINE EQ095E 06S104E:
WESTERLY QUARTER WINDS 20/30 KNOTS. ROUGH SEAS. LOW TO MODERATE
SWELL.
SOUTH OF LINE 10S142E 10S131E 12S126E:
NORTHWESTERLY QUARTER WINDS 20/30 KNOTS. ROUGH SEAS. LOW SWELL.
REMAINDER:
WINDS NOT EXCEEDING 20 KNOTS. SLIGHT TO MODERATE SEAS. LOW SWELL,
INCREASING TO
MODERATE SOUTH, AND WEST OF LINE EQ098E 05S103E 08S108E 09S119E.
RAIN AREAS, SCATTERED SHOWERS AND ISOLATED THUNDERSTORMS THROUGHOUT
AREA. HEAVY
AT TIMES WITHIN 120NM OF TROPICAL CYCLONE GRANT. 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.=