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 29 September 2026
Part 1 Warnings
Refer to latest warnings for boundary of affected area and type of weather
system.
Melbourne Gale Warning 8.
Melbourne Gale Warning 9.
Part 2 Situation at 290600 UTC
Cold front near 34S109E 41S116E 50S124E. Forecast cold front exiting east of
area near 38S129E 42S133E 50S134E at 300600UTC.
Low 994hPa near 43S128E. Forecast low 993hPa exiting east of area near 43S133E
at 291200UTC.
Warm front entering area from west near 50S082E 47S084E at 291500UTC, and near
50S118E 46S123E at 301200UTC.
Part 3 Forecast
Refer to latest warnings for details of the area affected.
South of line 38S080E 34S118E 38S129E, outside warning areas:
Westerly quarter winds west of cold front, shifting northwesterly quarter
within 300nm east of cold front and west of warm 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,
increasing up to heavy swell south of line 37S080E 35S085E 37S090E.
Rain areas, scattered showers and isolated thunderstorms mostly within 180nm of
fronts, and within 180nm of low. 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 21:00 UTC Tuesday.
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 29 September 2026
Part 1 Warnings
Refer to latest warnings for boundary of affected area and type of weather
system.
Melbourne Gale Warning 7.
Part 2 Situation at 290600 UTC
High 1028hPa near 36S155E. Forecast high 1032hPa near 37S164E at 301200UTC.
Low 994hPa near 43S128E. Forecast low 1009hPa near 44S135E at 291500UTC and
then weakening thereafter.
Forecast cold front entering area from west near 38S124E 46S127E at 292100UTC,
and near 43S137E 47S140E 50S139E at 301200UTC.
Part 3 Forecast
Refer to latest warnings for details of the area affected.
South of line 38S129E 42S149E 45S152E, outside of warning areas:
Northeasterly quarter winds 20/30 knots north of cold front. Rough seas.
Moderate swell.
Remainder:
Winds not exceeding 25 knots. Moderate to rough seas. Moderate swell increasing
up to heavy south of line 43S156E 37S159E 36S166E.
Rain areas, isolated showers and isolated thunderstorms mainly west of line
25S163E 28S167E. 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 21:00 UTC Tuesday.
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 29 September 2026
Part 1 Warnings
Nil.
Part 2 Situation at 290600 UTC
Trough near 01S156E to low [1] 1011hPa near 04S157E 07S167E to low [2] 1010hPa
near 06S170E. Trough to low [1] 1012hPa near 03S153E to trough near 02S157E to
low [2] 1009hPa near 07S169E to trough near 08S170E at 300300UTC, trough to low
[1] weakening thereafter, Just trough near 03S163E to low [2] 1011hPa near
07S169E to trough near 08S170E at 301200UTC.
Part 3 Forecast
South of line 09S142E 07S151E 08S166E 11S170E:
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, increasing to
low to moderate swell south of line 05S163E 04S165E 07S170E.
Isolated showers and thunderstorms throughout area, heavy at times within 120nm
of line 08S164E 10S170E. 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 21:00 UTC Tuesday.
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 29 SEPTEMBER 2026
PART 1 WARNINGS
NIL.
PART 2 SITUATION AT 290600 UTC
NIL SIGNIFICANT FEATURES.
PART 3 FORECAST
WHOLE AREA:
WINDS NOT EXCEEDING 20 KNOTS. SLIGHT TO MODERATE SEAS. LOW SWELL,
INCREASING UP
TO MODERATE SWELL SOUTH OF LINE EQ090E 02S097E 10S099E 08S112E.
ISOLATED SHOWERS AND THUNDERSTORMS MOSTLY NORTH OF LINE 03S092E
02S095E
04S101E. 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 20:15 UTC TUESDAY.=