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 21 April 2026
Part 1 Warnings
Refer to latest warnings for boundary of affected area and type of weather
system.
Melbourne Storm Force Wind Warning 5.
Melbourne Gale Warning 11.
Part 2 Situation at 211800 UTC
Cold front 36S138E 44S138E to low 980hPa near 48S130E. Forecast low 981hPa near
50S133E at 220000UTC, and moving south of area thereafter, cold front forecast
48S152E 50S153E at 221500UTC, and south of area thereafter.
Part 3 Forecast
Refer to latest warnings for details of the area affected.
South of line 36S129E 41S148E 50S157E, outside warning area:
Northerly quarter winds east of front, shifting westerly quarter west of front
and turning clockwise within 300nm of low. 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 and within 300nm 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 09:00 UTC Wednesday.
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 21 April 2026
Part 1 Warnings
Refer to latest warnings for boundary of affected area and type of weather
system.
Melbourne Storm Force Wind Warning 5.
Melbourne Gale Warning 9.
Melbourne Gale Warning 10.
Melbourne Gale Warning 11.
Part 2 Situation at 211800 UTC
Cold front [1] 33S091E 37S102E 50S110E. Forecast 30S111E 50S127E 55S127E at
230000UTC.
Cold front [2] approaching from west near 45S066E 51S082E at 212100UTC.
Forecast 41S102E 48S107E 50S106E at 230000UTC.
Trough 11S113E 16S115E. Forecast trough 12S107E 16S110E at 230000UTC.
Part 3 Forecast
Refer to latest warnings for details of the area affected.
South of line 46S080E 30S092E 29S109E 36S129E, outside warning areas:
Southwesterly quarter winds shifting northwesterly quarter east within 420nm
west of front [1] and [2]. 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,
increasing to moderate to heavy swell south of line 28S090E 28S100E.
Rain areas, scattered showers and isolated thunderstorms mostly within 240nm of
front, and within 120nm of trough. 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 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 2300 UTC 21 April 2026
Part 1 Warnings
Nil.
Part 2 Situation at 211800 UTC
Trough near 04S152E 10S158E 17S170E. Forecast 04S153E 18S170E at 230000UTC.
Part 3 Forecast
Within area enclosed by 09S142E 08S145E 17S170E 20S170E 19S151E 25S154E:
Southeast quarter winds 15/25 knots, reaching 30 knots within 90nm of
Queensland coast between 10S and 15S. Moderate to rough seas. Low to moderate
swell.
Remainder:
Winds not exceeding 20 knots. Slight to moderate seas. Low swell, increasing to
moderate east of 155E south from 20S.
Rain areas, scattered showers, and isolated thunderstorms mainly north of 20S.
Heavy at times within 90nm of trough. 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 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 2300 UTC 21 APRIL 2026
PART 1 WARNINGS
NIL.
PART 2 SITUATION AT 211800 UTC
TROUGH NEAR 08S111E 12S113E. FORECAST 09S106E 12S107E AT 230000UTC.
PART 3 FORECAST
OVER THE GULF OF CARPENTARIA:
SOUTHEAST QUARTER WINDS 15/25 KNOTS. MODERATE TO ROUGH SEAS. LOW
SWELL.
REMAINDER:
WINDS NOT EXCEEDING 20 KNOTS. SLIGHT TO MODERATE SEAS. LOW SWELL,
INCREASING TO
LOW TO MODERATE SOUTH OF 05S/INDONESIA AND WEST FROM 120E.
RAIN AREAS, SCATTERED SHOWERS AND ISOLATED THUNDERSTORMS THROUGHOUT
AREA. HEAVY
AT TIMES WITHIN 120NM OF TROUGH. 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 WEDNESDAY.=