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 20 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.
Part 2 Situation at 201800 UTC
Trough near 27S161E 33S168E. Forecast trough near 26S167E 29S170E at 220000UTC
Cold front west of area, forecast to enter near 35S130E 42S130E 44S129E at
210600UTC. Forecast 41S140E 50S139E 50S131E at at 220000UTC.
Low west of area, forecast to enter 977hPa near 48S129E at 211800UTC, and
forecast 979hPa near 50S131E at 220000UTC.
Part 3 Forecast
Refer to latest warnings for details of the area affected.
East of line 47S160E 40S155E 29S158E:
Southerly quarter winds, shifting northwesterly quarter east of trough. Wind
speeds 20/30 knots. Rough seas. Moderate to heavy swell.
West of line 32S129E 40S150E 50S150E, outside of warning area:
Northerly quarter winds within 420nm east of front, turning clockwise within
540nm of low. 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.
Rain areas, scattered showers and isolated thunderstorms mostly within 360nm of
front, low and 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 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 2300 UTC 20 April 2026
Part 1 Warnings
Nil.
Part 2 Situation at 201800 UTC
Trough near 08S154E 18S169E. Forecast near 07S156E 17S170E at 220000UTC.
Part 3 Forecast
South of line 08S142E 09S158E 18S170E:
Southeasterly quarter winds 15/25 knots. Moderate to rough seas. Low to
moderate swell, increasing to moderate to heavy south of line 24S161E 24S169E.
Remainder:
Winds not exceeding 20 knots. Slight to moderate seas. Low swell, increasing to
low to moderate swell south of line 07S154E 09S165E.
Rain areas, scattered showers, and isolated thunderstorms throughout area.
Heavy at times within 60nm of 18S168E 19S170E. 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 Tuesday.
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 20 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 Storm Force Wind Warning 9.
Melbourne Gale Warning 7.
Part 2 Situation at 201800 UTC
Cold front [1] near 34S120E 38S121E 41S120E. Forecast cold front [1] 44S129E
45S129E 46S128E at 211200UTC and east of area thereafter.
Low 981hPa near 41S120E. Forecast low 977hPa near 48S129E at 211800UTC, and
east of area thereafter.
Warm front near 44S097E 50S100E 50S100E. Forecast warm front near 49S119E
50S118E at 220000UTC.
Cold front [2] near 44S082E 46S092E 50S099E. Forecast cold front [2] near
33S100E 45S116E 50S117E at 220000UTC.
Part 3 Forecast
Refer to latest warnings for details of the area affected.
South of line 40S080E 30S094E 32S129E, outside warning areas:
Westerly quarter winds, shifting northerly quarter within 480nm east of fronts,
shifting southwesterly quarter within 600nm west of fronts, and turning
clockwise within within 480nm of low. 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 to moderate to heavy swell south of line 27S093E 23S100E 23S114E.
Rain areas, scattered showers and isolated thunderstorms mostly within 180nm of
fronts, low and line 13S108E 14S123E. 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 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 2300 UTC 20 APRIL 2026
PART 1 WARNINGS
NIL.
PART 2 SITUATION AT 201800 UTC
TROUGH NEAR 07S116E 12S119E. FORECAST NEAR 12S113E 07S105E AT
220000UTC.
PART 3 FORECAST
SOUTH OF LINE 06S090E 12S112E:
SOUTHEASTERLY QUARTER WINDS 15/25 KNOTS. MODERATE TO ROUGH SEAS. LOW
TO
MODERATE SWELL.
SOUTH OF LINE 10S133E 08S137E 08S142E:
EASTERLY 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 WEST OF LINE 12S120E 06S106E.
RAIN AREAS, SCATTERED SHOWERS AND ISOLATED THUNDERSTORMS THROUGHOUT
THE AREA.
HEAVY AT TIMES WITHIN 120NM OF LINE 09S142E 11S133E. 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 TUESDAY.=