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 8 December 2025
Part 1 Warnings
Refer to latest warnings for details of the area affected.
Melbourne Gale Warning 5.
Melbourne Gale Warning 7.
Part 2 Situation at 080600 UTC
Trough [1] forecast entering area near 46S131E 48S129E at 090600UTC, 48S137E
50S131E at 091200UTC.
Trough [2] 39S139E 44S151E. Forecast 37S156E 43S163E at 091200UTC.
Trough [3] 30S158E 37S166E. Forecast 35S161E 38S163E at 090000UTC and weakening
thereafter.
Part 3 Forecast
Refer to latest warnings for details of the area affected.
South of line 42S129E 38S143E 40S157E 43S162E, outside of warning areas:
Westerly quarter winds, shifting northwesterly quarter within 420nm east trough
[2]. 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,
rising to heavy swell south of line 38S129E 38S141E.
Rain areas, scattered showers and isolated thunderstorms mostly within 180nm of
troughs and heavy within 120nm 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 20:00 UTC Monday.
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 8 December 2025
Part 1 Warnings
Nil.
Part 2 Situation at 080600 UTC
Trough near 09S154E 07S169E. Forecast slow moving.
Part 3 Forecast
Within 60nm of line 02S142E 04S148E:
Northwesterly quarter winds 15/25 knots. Moderate to rough seas. Low swell.
Within 60nm of line 20S164E 23S169E:
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 mostly north of 09S142E
15S154E 08S170E. 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 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 1100 UTC 8 December 2025
Part 1 Warnings
Refer to latest warnings for details of the area affected.
Melbourne Gale Warning 5.
Melbourne Gale Warning 8.
Melbourne Gale Warning 9.
Part 2 Situation at 080600 UTC
Cold front near 43S075E 48S077E. Forecast 33S083E 43S094E 47S105E 50S107E at
091200UTC.
Warm front near 45S090E 47S084E to low 986hPa near 48S077E. Forecast 47S099E
50S092E to low 977hPa near 50S086E at 081800UTC and south of area thereafter.
Trough near 47S105E 50S105E. Forecast 48S129E 50S125E at 090600UTC and east of
area thereafter.
Part 3 Forecast
Refer to latest warnings for details of the area affected.
South of 38S080E 39S094E 42S102E 42S129E, outside warning areas:
Westerly quarter winds, shifting northwesterly quarter within 120nm east of
trough and north of warm front, and 240nm east of cold front. 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,
rising to heavy swell south of line 40S117E 38S129E.
Rain areas, scattered showers and isolated thunderstorms mostly within 120nm of
cold front, 120nm of trough, 180nm of warm front, 120nm of line 29S092E 31S109E
36S127E and north of line 12S095E 17S090E. 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 Monday.
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 8 DECEMBER 2025
PART 1 WARNINGS
NIL.
PART 2 SITUATION AT 080600 UTC
TROUGH NEAR 06S090E 06S101E. FORECAST SLOW MOVING.
PART 3 FORECAST
WHOLE AREA:
WINDS NOT EXCEEDING 20 KNOTS. SLIGHT TO MODERATE SEAS. LOW SWELL.
RAIN AREAS, SCATTERED SHOWERS AND ISOLATED THUNDERSTORMS THROUGHOUT
WHOLE AREA.
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 MONDAY.=