IDY10210
SECURITE
Updated 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 17 June 2026
Part 1 Warnings
Refer to latest warnings for boundary of affected area and type of weather
system.
Melbourne Gale Warning 2.
Melbourne Gale Warning 5.
Part 2 Situation at 171800 UTC
Cold front near 32S129E to low 998hPa near 42S137E to warm front 44S139E
44S147E. Forecast 27S140E to low 991hPa near 42S144E to warm front 49S153E
50S160E at 190000UTC.
Part 3 Forecast
Refer to latest warnings for details of the area affected.
South of line 31S129E 31S157E 39S164E, outside warning area:
Southwesterly quarter winds west of cold front, shifting northeasterly quarter
north of warm front and turning clockwise within 240nm of low. Wind speeds
20/30 knots. Rough seas. Moderate swell increasing to heavy south of line
31S129E 45S160E.
Remainder:
Winds not exceeding 25 knots. Moderate to rough seas. Low to moderate swell.
Rain areas, scattered showers and isolated thunderstorms mainly within 180nm of
cold front, 240nm of warm front 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 09:00 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 2300 UTC 17 June 2026
Part 1 Warnings
Refer to latest warnings for boundary of affected area and type of weather
system.
Melbourne Gale Warning 2.
Part 2 Situation at 171800 UTC
Trough [1] near 18S089E to low [1] 1012hPa near 14S088E. Forecast near 18S095E
20S094E to low [1] 1010hPa near 21S091E at 190000UTC.
Trough [2] near 30S087E 37S094E to low [2] 1011hPa near 42S095E . Forecast near
30S088E 44S108E to low [1] 1011hPa near 48S109E at 190000UTC.
Forecast cold front near 43S074E 50S080E at 181500UTC, entering from west.
Forecast near 40S076E 45S080E 50S088E at 190000UTC.
Part 3 Forecast
Refer to latest warnings for details of the area affected.
East of line 44S129E 42S122E 34S121E, outside warning areas:
Southerly quarter winds. Wind speeds 25/33 knots. Rough to very rough seas.
Moderate to heavy swell.
Within 300nm of line 18S120E 18S090E:
Easterly quarter winds, shifting northeasterly quarter south of trough [2].
Wind speeds 20/30 knots. Rough seas. Moderate swell.
Within 240nm of line 30S088E 46S106E:
Southeasterly quarter winds west of trough [2], shifting northerly quarter east
of trough [1]. Clockwise winds within 60nm of low [2]. Winds 20/30 knots. Rough
seas. Moderate swell.
South of line 44S080E 50S102E:
Northwesterly quarter winds 20/30 knots, shifting southerly quarter south of
cold front. Rough seas. Heavy swell.
South of line 44S129E 50S120E:
Southwesterly quarter winds. Wind speeds 20/30 knots. Rough seas. Moderate to
heavy swell.
Remainder:
Winds not exceeding 25 knots. Rough to very rough seas. Low to moderate swell
increasing to moderate to heavy swell south of line 44S080E 47S129E.
Rain areas, scattered showers and isolated thunderstorms mostly within 180nm of
front, troughs and lows. Heavy at times within 120nm of troughs [1] and [2].
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 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 2300 UTC 17 June 2026
Part 1 Warnings
Nil.
Part 2 Situation at 171800 UTC
Southeasterly trade flow prevails across the region.
Part 3 Forecast
South of line 03S142E 03S147E 10S170E:
Southeasterly quarter winds 20/30 knots. Rough seas. Low to moderate swell.
Remainder:
Winds not exceeding 20 knots. Slight to moderate seas. Low swell increasing to
moderate south of line 05S163E 05S170E.
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 09:00 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 2300 UTC 17 JUNE 2026
PART 1 WARNINGS
NIL.
PART 2 SITUATION AT 171800 UTC
SOUTHEASTERLY TRADE FLOW PREVAILS ACROSS THE REGION.
PART 3 FORECAST
SOUTH OF LINE 11S102E 11S131E:
SOUTHEASTERLY QUARTER WINDS 15/25 KNOTS. MODERATE TO ROUGH SEAS.
MODERATE SWELL.
REMAINDER:
WINDS NOT EXCEEDING 20 KNOTS. SLIGHT TO MODERATE SEAS. LOW SWELL,
INCREASING TO
LOW TO MODERATE SOUTH OF LINE 06S090E 02S098E 07S106E 09S117E.
RAIN AREAS, SCATTERED SHOWERS AND ISOLATED THUNDERSTORMS THROUGHOUT.
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 THURSDAY.=