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 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 200600 UTC
Trough near 31S162E 34S168E. Forecast trough near 27S168E 31S171E at 201800UTC
and then moving east of area.
Cold front forecast to enter area from the west near 34S130E 40S129E at
210300UTC, then near 37S136E 43S134E 44S129E at 211200UTC.
Part 3 Forecast
Refer to latest warnings for details of the area affected.
East of line 25S156E 45S156E:
Southerly quarter winds, shifting northwesterly quarter east of trough. Wind
speeds 20/30 knots. Rough seas. Moderate to heavy swell.
West of line 32S131E 50S143E, outside of warning area:
Northerly quarter winds 20/33 knots. Rough to very rough seas. Moderate 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 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 21:00 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 1100 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 200600 UTC
Cold front [1] 29S107E 43S116E 50S118E. Forecast 34S120E 37S121E to low 990hPa
developing near 41S120E to warm front 46S123E at 201800UTC, then cold front [1]
44S129E to low 977hPa near 46S127E to warm front 48S126E 50S128E at 211200UTC.
Cold front [2] near 45S080E 50S088E. Forecast near 35S088E 41S103E 50S109E at
211200UTC.
Part 3 Forecast
Refer to latest warnings for details of the area affected.
South of line 33S129E 27S108E 38S080E, 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 240nm 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 23S114E 23S099E 30S089E.
Rain areas, scattered showers and isolated thunderstorms mostly within 180nm of
fronts, lows and line 15S090E 13S125E. 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 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 1100 UTC 20 April 2026
Part 1 Warnings
Nil.
Part 2 Situation at 200600 UTC
Trough near 11S157E 16S170E. Forecast near 09S160E 16S170E at 211200UTC.
Part 3 Forecast
South of line 09S142E 17S170E:
Southeasterly quarter winds 15/25 knots. Moderate to rough seas. Low to
moderate swell, increasing to moderate to heavy south of line 22S170E 23S158E.
Remainder:
Winds not exceeding 20 knots. Slight to moderate seas. Low swell, increasing to
low to moderate swell south of line 10S149E 10S165E.
Rain areas, scattered showers, and isolated thunderstorms throughout area
except south of line 15S155E 22S170E. Heavy at times within 60nm of 17S166E
20S171E. 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 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 1100 UTC 20 APRIL 2026
PART 1 WARNINGS
NIL.
PART 2 SITUATION AT 200600 UTC
TROUGH NEAR 06S118E 11S122E. FORECAST NEAR 07S112E 12S116E AT
211200UTC.
PART 3 FORECAST
SOUTH OF LINE 09S090E 10S110E:
SOUTHEASTERLY QUARTER WINDS 15/25 KNOTS. MODERATE TO ROUGH SEAS. LOW
TO
MODERATE SWELL.
WHOLE AREA:
WINDS NOT EXCEEDING 20 KNOTS. SLIGHT TO MODERATE SEAS. LOW SWELL,
INCREASING TO
LOW TO MODERATE SOUTH OF LINE 05S090E 05S105E.
RAIN AREAS, SCATTERED SHOWERS AND ISOLATED THUNDERSTORMS THROUGHOUT
THE AREA.
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 MONDAY.=