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 17 April 2026
Part 1 Warnings
Refer to latest warnings for boundary of affected area and type of weather
system.
Melbourne Gale Warning 1.
Melbourne Gale Warning 3.
Melbourne Gale Warning 4.
Melbourne Gale Warning 5.
Part 2 Situation at 170600 UTC
Cold front [1] 31S108E 38S113E 50S115E. Forecast east of area near 37S133E
47S133E 50S130E at 181200UTC.
Cold front [2] 40S091E 50S095E. Forecast near 36S109E 44S119E 50S120E at
181200UTC.
Part 3 Forecast
Refer to latest warnings for details of the area affected.
South of line 40S080E 30S105E 35S129E, outside warning areas:
Westerly quarter winds, turning southwesterly quarter west of 90E. Winds
shifting northerly quarter within 360nm east of cold front [1], northwesterly
quarter within 240nm east of cold front [2] and southwesterly quarter within
180nm west of cold front [1]. 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 180nm of
cold fronts and north of line 20S090E 17S100E. Heavy at times within 60nm of
line 15S090E 15S092E. 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 Friday.
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 17 April 2026
Part 1 Warnings
Nil.
Part 2 Situation at 170600 UTC
No significant features.
Part 3 Forecast
West of line 10S151E 15S146E:
Easterly quarter winds 20/30 knots. Rough seas. Low swell.
Remainder:
Winds not exceeding 20 knots. Slight to moderate seas. Low swell.
Rain areas, scattered showers, and isolated thunderstorms mostly north of line
15S142E 13S152E 24S170E. 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 Friday.
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 17 April 2026
Part 1 Warnings
Refer to latest warnings for boundary of affected area and type of weather
system.
Melbourne Gale Warning 1.
Melbourne Gale Warning 10.
Part 2 Situation at 170600 UTC
Trough 32S152E 38S164E. Forecast trough 23S157E 32S169E at 181200UTC.
Low 971hPa near 51S158E. Forecast low 989hPa near 43S163E at 181200UTC.
Forecast cold front entering from west near 33S123E 50S120E at 171800UTC, then
near 37S133E 47S133E 50S130E at 181200UTC.
Part 3 Forecast
Refer to latest warnings for details of the area affected.
South of line 50S142E 27S151E 32S169E, outside warning area:
Southerly quarter winds within 180nm southwest of trough, shifting
northwesterly quarter within 240nm east of trough, turning clockwise within
840nm of low. Wind speeds 20/33 knots. Rough to very rough seas. Moderate to
heavy swell.
South of line 36S129E 41S139E, outside of warning area:
Northerly quarter winds 20/33 knots within 540nm east of cold front, shifting
westerly quarter west of front. Rough to very rough seas. Moderate to heavy
swell.
Remainder:
Winds not exceeding 25 knots. Moderate to rough seas. Low to moderate swell,
increasing up to heavy swell south of line 41S140E 41S146E.
Rain areas, scattered showers and isolated thunderstorms mostly within 180nm of
trough/cold 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 21:00 UTC Friday.
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 17 APRIL 2026
PART 1 WARNINGS
NIL.
PART 2 SITUATION AT 170600 UTC
TROUGH NEAR 07S095E 11S090E. FORECAST SLOW MOVING.
PART 3 FORECAST
WHOLE AREA:
WINDS NOT EXCEEDING 20 KNOTS. SLIGHT TO MODERATE SEAS. LOW SWELL.
RAIN AREAS, SCATTERED SHOWERS AND ISOLATED THUNDERSTORMS THROUGHOUT
THE AREA.
HEAVY AT TIMES SOUTH OF TROUGH AND IN THE GULF OF CARPENTARIA.
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 FRIDAY.=