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 26 August 2026
Part 1 Warnings
Refer to latest warnings for boundary of affected area and type of weather
system.
Melbourne Gale Warning 12.
Part 2 Situation at 261800 UTC
Cold front [1] near 31S160E 39S165E. Forecast cold front [1] near 28S166E
33S168E at 280000UTC.
Cold front [2] near 39S129E 45S135E 50S136E. Forecast cold front [2] near
42S156E 47S159E 50S159E at 280000UTC.
Low 1004hPa near 41S158E. Forecast low 1007hPa near 40S163E at 270600UTC, and
east of area thereafter.
Part 3 Forecast
Refer to latest warnings for details of the area affected.
South of line 43S129E 36S154E 29S170E, outside of warning areas:
Northwesterly quarter winds, shifting southwesterly quarter west of cold fronts
and turning clockwise within 420nm of low. Wind speeds 20/33 knots. Rough to
very rough seas. Moderate to heavy swell.
Remainder:
Winds not exceeding 25 knots. Slight to moderate seas. Low to moderate swell,
increasing to heavy swell south of line 34S129E 40S139E.
Rain areas, scattered showers and isolated thunderstorms mainly within 240nm of
fronts and within 180nm of low. Heavy at times within 120nm 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 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 26 August 2026
Part 1 Warnings
Nil.
Part 2 Situation at 261800 UTC
Trough 03S152E 01S164E EQ170E, forecast near 01S148E 01S169E at 280000UTC.
Part 3 Forecast
West of line 03S160E 07S166E 18S156E 25S163E:
Southeasterly quarter winds 15/25 knots. Winds reaching up to 30 knots within
120nm of line 14S145E 03S148E. Moderate to rough seas. Low to moderate 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
15S145E 12S156E 18S170E, and within 120nm of trough. Heavy at times within
120nm of line 07S148E 06S163E. 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 Thursday.
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 26 August 2026
Part 1 Warnings
Refer to latest warnings for boundary of affected area and type of weather
system.
Melbourne Gale Warning 2.
Melbourne Gale Warning 11.
Part 2 Situation at 261800 UTC
Warm front near 47S091E 49S080E. Forecast warm front near 49S107E 50S105E at
270600UTC and south of area thereafter.
Part 3 Forecast
Refer to latest warnings for details of the area affected.
South of line 33S080E 44S119E 44S129E, outside warning areas:
Northwesterly quarter winds, shifting northeasterly quarter south of warm
front. Wind speeds 20/33 knots. Rough to very rough seas. Moderate to heavy
swell.
East of line 29S111E 35S115E 37S125E:
Southeasterly quarter winds 20/30 knots. Rough seas. Moderate to heavy swell.
Within 120nm of line 19S093E 19S100E:
Easterly quarter winds 20/30 knots developing after 270600UTC. Rough seas.
Moderate to heavy swell.
Remainder:
Winds not exceeding 25 knots. Slight to moderate seas. Moderate to heavy swell,
decreasing to low swell east of line 12S119E 20S118E.
Rain areas, scattered showers and isolated thunderstorms mostly south of line
33S080E 44S119E 44S129E and north of line 24S090E 29S108E 39S129E. Heavy at
times near 18S093E 19S100E. 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 Thursday.
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 26 AUGUST 2026
PART 1 WARNINGS
NIL.
PART 2 SITUATION AT 261800 UTC
NIL SIGNIFICANT FEATURES.
PART 3 FORECAST
SOUTH OF LINE 12S106E 09S114E 12S125E AND WEST OF LINE 10S090E
06S092E EQ107E:
WINDS NOT EXCEEDING 20 KNOTS. SLIGHT TO MODERATE SEAS. LOW SWELL,
INCREASING TO
LOW TO MODERATE WEST OF LINE EQ098E 12S124E.
REMAINDER:
SOUTHEASTERLY QUARTER WINDS 15/25 KNOTS. MODERATE TO ROUGH SEAS. LOW
SWELL,
INCREASING TO LOW TO MODERATE WEST OF LINE EQ098E 12S124E.
SCATTERED SHOWERS AND ISOLATED THUNDERSTORMS MAINLY WEST OF LINE
EQ102E
07S106E. 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 THURSDAY.=