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 15 July 2026
Part 1 Warnings
Refer to latest warnings for boundary of affected area and type of weather
system.
Melbourne Storm Force Wind Warning 3.
Melbourne Gale Warning 4.
Melbourne Gale Warning 12.
Part 2 Situation at 150600 UTC
Trough [1] near 28S102E 37S107E 49S122E. Forecast near 28S112E 46S129E at
161200UTC.
Cold front near 41S089E 48S093E 50S091E. Forecast near 34S102E 48S109E 50S108E
at 161200UTC.
Forecast trough [2] strengthening near 44S122E 46S129E at 152100UTC, then near
45S127E 48S136E at 161200UTC.
Part 3 Forecast
Refer to latest warnings for details of the area affected.
South of line 38S080E 33S090E 30S115E 38S129E, outside warning areas:
Westerly quarter winds, shifting northwesterly east of troughs, shifting
easterly quarter within 120nm south of trough [2], shifting northerly quarter
within 480nm east of cold front and shifting southwesterly quarter within 900nm
west of cold front. 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 29S080E 32S095E.
Rain areas, scattered showers and isolated thunderstorms mostly within 120nm of
front and troughs. 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 Wednesday.
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 15 July 2026
Part 1 Warnings
Refer to latest warnings for boundary of affected area and type of weather
system.
Melbourne Storm Force Wind Warning 3.
Melbourne Gale Warning 12.
Part 2 Situation at 150600 UTC
Trough [1] near 29S162E 39S164E. Forecast near 25S165E 30S165E at 161200UTC.
Forecast trough [2] entering from west near 45S124E 46S130E at 160600UTC, then
near 45S127E 48S136E at 161200UTC.
Part 3 Forecast
Refer to latest warnings for details of the area affected.
South of line 38S129E 43S140E 43S161E, outside warning areas:
Westerly quarter winds, shifting easterly quarter within 120nm south of trough
[2], shifting northwesterly quarter west of 146E, and shifting southwesterly
quarter east of 150E until 151800UTC. Wind speeds 20/33 knots. Rough to very
rough seas. Moderate to heavy swell.
West of line 25S154E 33S158E to Australian Coast:
Southerly quarter winds 20/30 knots. Rough seas. Low to moderate swell.
Remainder:
Winds not exceeding 25 knots. Moderate to rough seas. Low to moderate swell,
increasing to moderate to heavy swell south of line 41S136E 37S165E.
Rain areas, scattered showers and isolated thunderstorms mostly within 240nm of
troughs and north of 36S. 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 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 1100 UTC 15 July 2026
Part 1 Warnings
Nil.
Part 2 Situation at 150600 UTC
Trough near 04S162E 03S170E. Forecast slow moving.
Part 3 Forecast
South of line 03S142E 01S155E 09S162E 05S170E:
Southeasterly quarter winds 15/25 knots, increasing to 20/30 knots through
Vitiaz Strait, and within 240nm of the Australian coast. Moderate to rough
seas. Low to moderate swell.
Remainder:
Winds not exceeding 20 knots. Slight to moderate seas. Low swell.
Rain areas, scattered showers and isolated thunderstorms mostly throughout the
area. Heavy at times within 120nm of line 10S165E 05S168E. 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 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 1100 UTC 15 JULY 2026
PART 1 WARNINGS
NIL.
PART 2 SITUATION AT 150600 UTC
EAST TO SOUTHEASTERLY TRADE FLOW.
PART 3 FORECAST
SOUTH OF LINE 01S116E 06S142E:
SOUTHEASTERLY 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 LINE EQ090E EQ099E 06S105E 09S116E.
RAIN AREAS, SCATTERED SHOWERS AND ISOLATED THUNDERSTORMS THROUGHOUT
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 WEDNESDAY.=