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 30 July 2026
Part 1 Warnings
Refer to latest warnings for boundary of affected area and type of weather
system.
Melbourne Storm Force Wind Warning 11.
Melbourne Gale Warning 5.
Part 2 Situation at 300600 UTC
Trough near 45S152E 48S164E. Forecast trough near 31S165E 36S169E 42S171E at
311200UTC.
Cold front west of area near 39S113E 45S122E 50S127E 50S112E. Forecast cold
front near 48S142E 50S150E at 311200UTC.
Forecast low 997hPa entering area from the west near 47S124E at 311200UTC
Part 3 Forecast
Refer to latest warnings for details of the area affected.
South of line 39S129E 49S155E, outside warning areas:
Northwesterly quarter. Wind speeds 25/33 knots within 420nm east of cold front.
Rough to very rough seas. Moderate to heavy swell.
East of line 31S163E 33S158E 41S149E 49S155E, outside warning areas:
Southerly quarter winds, tending southwesterly quarter east of trough. 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 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 21:00 UTC Thursday.
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 30 July 2026
Part 1 Warnings
Refer to latest warnings for boundary of affected area and type of weather
system.
Melbourne Storm Force Wind Warning 11.
Melbourne Gale Warning 1.
Part 2 Situation at 300600 UTC
Cold front 39S113E 45S122E 50S127E 50S112E. Forecast cold front 39S115E 45S129E
at 301800UTC, and east of area thereafter.
Trough 40S093E 45S096E to low 994hPa near 49S096E. Forecast trough 41S115E
46S117E to low 999hPa near 48S115E at 311200UTC.
Part 3 Forecast
Refer to latest warnings for details of the area affected.
South of line 43S080E 37S095E 33S113E 39S129E, outside warning areas:
Westerly quarter winds, turning northwesterly quarter east of cold front and
within 360nm east of trough, tending southwesterly quarter west of trough.
Clockwise winds within 180nm 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 38S080E 32S091E 30S104E
33S113E.
Rain areas, scattered showers and isolated thunderstorms mostly within 120nm of
front, trough, and 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 Thursday.
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 30 July 2026
Part 1 Warnings
Nil.
Part 2 Situation at 300600 UTC
Trough [1] near 01S161E to low 1007hPa near 02S167E to 01S170E Forecast trough
[1] near EQ163E to low 1009hPa near 03S167E to 01S170E 311200UTC.
Trough [2] near 10S147E 22S158E. Forecast slow moving.
Part 3 Forecast
Within 300nm west of trough [2]:
Southeasterly quarter winds. Wind speeds 15/25 knots, reaching up to 30 knots
at times within the Vitiaz Strait. Moderate to rough seas, very rough at times
within the Vitiaz Strait. Low to moderate swell, decreasing to low swell north
of 8S and west of 162E.
Scattered showers and isolated thunderstorms throughout area. Widespread
showers within 180nm west of trough [2], within 300nm of trough [1], and within
600nm 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 Thursday.
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 30 JULY 2026
PART 1 WARNINGS
NIL.
PART 2 SITUATION AT 300600 UTC
SOUTHEASTERLY TRADE FLOW.
PART 3 FORECAST
WITHIN 180NM OF LINE 09S100E 10S107E AND OF LINE 09S142E 04S134E
10S121E:
SOUTHEASTERLY QUARTER WINDS 15/25 KNOTS. MODERATE TO ROUGH SEAS. LOW
TO
MODERATE SWELL, DECREASING TO LOW SWELL NORTH OF AUSTRALIA.
REMAINDER:
WINDS NOT EXCEEDING 20 KNOTS. SLIGHT TO MODERATE SEAS. LOW SWELL,
INCREASING TO
LOW TO MODERATE SOUTH OF LINE EQ094E 08S103E 09S121E.
SCATTERED SHOWERS AND ISOLATED THUNDERSTORMS THROUGHOUT MOST OF 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 THURSDAY.=