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 October 2025
Part 1 Warnings
Refer to latest warnings for details of the area affected.
Melbourne Gale Warning 3.
Melbourne Gale Warning 4.
Part 2 Situation at 080600 UTC
Trough near 40S120E 50S116E. Forecast near 42S129E 50S122E at 081500UTC, then
east of area thereafter.
Cold front 29S082E 37S086E 42S085E to low 1001hPa near 41S080E. Forecast
29S092E 40S099E to low 999hPa near 45S093E at 091200UTC.
Part 3 Forecast
Refer to latest warnings for boundary of affected area and type of weather
system.
South of line 50S096E 41S101E 33S121E 33S129E, outside warning areas:
Southwesterly quarter winds 20/33 knots. Rough seas. Moderate to heavy swell.
West of line 32S088E 35S091E 42S091E 45S080E:
Northerly quarter winds east of cold front, shifting westerly quarter west of
front, and turning clockwise within 180nm of low in the northern semicircle.
Wind speeds 20/30 knots. Moderate to rough seas. Moderate swell.
Remainder:
Winds not exceeding 25 knots. Slight to moderate seas. Low to moderate swell,
increasing to moderate to heavy swell south of line 28S112E 40S100E.
Rain areas, scattered showers and isolated thunderstorms mostly within 180nm of
front, 600nm of trough, and north of line 17S100E 20S090E. 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 Wednesday.
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 October 2025
Part 1 Warnings
Refer to latest warnings for details of the area affected.
Melbourne Gale Warning 3.
Melbourne Gale Warning 4.
Part 2 Situation at 080600 UTC
Cold front near 39S129E 45S134E 50S137E. Forecast cold front near 48S145E
50S149E at 090300UTC, then weakening thereafter.
Trough [1] forecast entering area from the west near 39S135E 46S129E at
081800UTC, and near 44S156E 48S154E 50S144E at 091200UTC.
Trough [2] forecast to develop near 38S149E 41S154E at 081800UTC, and near
34S151E 37S158E 40S163E at 091200UTC.
Trough [3] forecast to develop near 36S130E 44S130E at 090600UTC, and near
36S134E 43S134E at 091200UTC.
Part 3 Forecast
Refer to latest warnings for boundary of affected area and type of weather
system.
South of line 33S129E 34S137E 39S150E 42S162E, outside warning areas:
Westerly quarter winds, shifting northwesterly quarter within 300nm north of
trough [1], 540nm east of cold front until 090300UTC, and within 600nm east of
trough [2] from 090600UTC. Wind speeds 20/33 knots. Rough seas. Moderate to
heavy swell.
Within 660nm north of line 36S150E 42S162E:
Northerly quarter winds 20/33 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 troughs. 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 Wednesday.
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 October 2025
Part 1 Warnings
Nil.
Part 2 Situation at 080600 UTC
Nil significant features.
Part 3 Forecast
Within 60nm of Vitiaz Strait:
Southeasterly 15/25 knots, reaching up to 30 knots at times. Rough seas. Low
swell.
Between lines 09S142E 07S164E 07S170E and 15S145E 24S161E 25S170E:
Southeasterly quarter winds 15/25 knots. Moderate to rough seas. Low swell
increasing to low to moderate swell south of line 20S170E 24S162E.
Remainder:
Winds not exceeding 20 knots. Slight to moderate seas. Low swell, increasing to
low to moderate swell east of line 08S159E 24S162E.
Rain areas, scattered showers and isolated thunderstorms mainly north of line
15S142E 19S146E 13S164E 14S170E. 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 Wednesday.
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 OCTOBER 2025
PART 1 WARNINGS
NIL.
PART 2 SITUATION AT 080600 UTC
NIL SIGNIFICANT FEATURES.
PART 3 FORECAST
WHOLE AREA:
WINDS NOT EXCEEDING 20 KNOTS. SLIGHT TO MODERATE SEAS. LOW SWELL,
INCREASING TO
LOW TO MODERATE WEST OF LINE EQ098E 07S107E 09S120E 12S120E.
SCATTERED SHOWERS AND ISOLATED THUNDERSTORMS THROUGHOUT EXCEPT SOUTH
OF LINE
12S100E 03S107E 06S124E 15S136E 15S142E. 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 WEDNESDAY.=