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 23 August 2026
Part 1 Warnings
Refer to latest warnings for details of the area affected.
Melbourne Gale Warning 10.
Part 2 Situation at 231800 UTC
Cold front 44S133E 50S141E. Forecast 45S152E 50S160E at 240900UTC and east of
area thereafter.
Part 3 Forecast
Refer to latest warnings for details of the area affected.
South of line 50S135E 43S142E 41S162E, outside warning areas:
Northwesterly quarter winds east of front, shifting westerly quarter west of
front. Wind speeds 20/33 knots. Moderate to rough seas. Heavy swell.
Remainder:
Winds not exceeding 25 knots. Slight to moderate seas. Low to moderate swell
increasing to heavy swell south of line 42S129E 43S142E.
Rain areas, scattered showers and isolated thunderstorms mainly within 240nm of
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 09:00 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 2300 UTC 23 August 2026
Part 1 Warnings
Nil.
Part 2 Situation at 231800 UTC
Trough EQ156E to low 1010hPa near 07S161E to 14S170E, slow moving.
Part 3 Forecast
East of line 10S154E 16S153E 25S168E:
Southeasterly quarter winds 15/25 knots. Moderate to rough seas. Low to
moderate swell.
Within 60nm of Vitiaz Strait:
Southeasterly winds reaching 20/30 knots. Moderate to rough seas. Low swell.
Remainder:
Winds not exceeding 20 knots. Slight to moderate seas. Low to moderate swell.
Rain areas, scattered showers and isolated thunderstorms mainly north of line
07S142E 21S170E. 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 09:00 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 2300 UTC 23 August 2026
Part 1 Warnings
Refer to latest warnings for boundary of affected area and type of weather
system.
Melbourne Gale Warning 9.
Part 2 Situation at 231800 UTC
Cold front [1] 32S089E 41S102E 50S089E. Forecast 35S114E 46S122E 50S116E at
250000UTC.
Part 3 Forecast
Refer to latest warnings for details of the area affected.
South of line 35S080E 31S105E 35S118E 43S129E, outside warning areas:
Northwesterly quarter winds east of front [1], shifting westerly quarter west
of front [1]. Wind speeds 20/33 knots. Moderate to rough seas. Moderate to
heavy swell.
Remainder:
Winds not exceeding 25 knots. Slight to moderate seas. Low to moderate swell.
Rain areas, scattered showers and isolated thunderstorms mostly within 240nm of
front [1]. 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 09:00 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 2300 UTC 23 AUGUST 2026
PART 1 WARNINGS
NIL.
PART 2 SITUATION AT 231800 UTC
NIL SIGNIFICANT FEATURES.
PART 3 FORECAST
SOUTH OF LINE 05S099E 06S111E:
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 WEST OF 120E SOUTH FROM INDONESIA.
SCATTERED SHOWERS AND ISOLATED THUNDERSTORMS MAINLY NORTH OF 06S.
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 08:15 UTC MONDAY.=