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 May 2026
Part 1 Warnings
Refer to latest warnings for boundary of affected area and type of weather
system.
Melbourne Gale Warning 11.
Part 2 Situation at 170600 UTC
Cold front 42S128E 50S128E. Forecast exiting east thereafter.
Trough 43S097E 49S087E. Forecast 41S125E 47S125E 50S123E at 181200UTC.
Part 3 Forecast
Refer to latest warnings for details of the area affected.
South of line 37S080E 39S129E, outside warning areas:
Westerly quarter winds, shifting northerly quarter within 60nm east of cold
front and trough. Wind speeds 20/33 knots. Rough to very rough seas. Moderate
to heavy swell.
East of line 18S115E 23S108E:
Southerly quarter winds 20/30 knots. Rough seas. Moderate swell.
Remainder:
Winds not exceeding 25 knots. Moderate to rough seas. Moderate swell,
decreasing to low swell east of line 12S119E 22S114E.
Rain areas, scattered showers and isolated thunderstorms mostly within 180nm of
cold front and trough and within 60nm of line 34S081E 39S089E 43S101E.
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 Sunday.
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 May 2026
Part 1 Warnings
Nil.
Part 2 Situation at 170600 UTC
Southeasterly trade flow.
Part 3 Forecast
South of line 25S154E 21S162E 20S170E, and east of line 09S150E 14S150E:
Southeasterly quarter winds 15/25 knots. Moderate to rough seas. Low to
moderate swell.
Remainder:
Winds not exceeding 20 knots. Slight to moderate seas. Low swell, increasing to
moderate swell south of line 19S152E 17S166E 10S170E.
Rain areas, scattered showers and isolated thunderstorms throughout area except
west of line 08S142E 15S166E 22S151E. 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 Sunday.
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 May 2026
Part 1 Warnings
Nil.
Part 2 Situation at 170600 UTC
Forecast developing low 995hPa near 48S131E to cold front 37S130E 46S135E
48S131E at 171800UTC, low 991hPa near 50S134E to cold front 40S136E 49S139E
50S134E at 180300UTC, low moving south of area thereafter and cold front
40S140E 50S143E at 181200UTC.
Part 3 Forecast
South of line 40S129E 43S140E 50S143E:
Northerly quarter winds 20/33 knots becoming clockwise within 360nm of northern
semicircle of low by 171800UTC. Rough to very rough seas. Moderate to heavy
swell.
East of line 33S152E 50S154E.
Northerly quarter winds 20/33 knots. Rough seas. Low to moderate swell.
Remainder:
Winds not exceeding 25 knots. Moderate to rough seas. Low to moderate swell.
Rain areas, scattered showers and isolated thunderstorms mainly within 120nm of
cold front and within 120nm of the east coast of Australia. Heavy at times
within 120nm of line 35S153E 49S157E. 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 Sunday.
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 MAY 2026
PART 1 WARNINGS
NIL.
PART 2 SITUATION AT 170600 UTC
NIL SIGNIFICANT FEATURES.
PART 3 FORECAST
SOUTH OF LINE 08S090E 08S098E 11S102E:
SOUTH EASTERLY QUARTER WINDS 15/25 KNOTS AFTER 171800UTC. MODERATE
SEAS.
MODERATE SWELL.
REMAINDER:
WINDS NOT EXCEEDING 20 KNOTS. SLIGHT TO MODERATE SEAS. LOW SWELL,
INCREASING TO
MODERATE SOUTH OF LINE 02S090E 07S105E 09S120E.
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 SUNDAY.=