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 20 May 2026
Part 1 Warnings
Nil.
Part 2 Situation at 200600 UTC
Trough near 19S159E 25S161E. Forecast near 18S167E 21S170E 25S169E at 211200UTC.
Part 3 Forecast
South of line 21S170E 24S161E:
Northeasterly quarter winds 15/25 knots east of trough. Moderate to rough seas.
Low to moderate swell.
South of line 09S143E 17S161E:
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
low to moderate swell south of line 12S170E 16S161E.
Rain areas, scattered showers and isolated thunderstorms throughout most of
area, heavy at times 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 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 20 May 2026
Part 1 Warnings
Refer to latest warnings for boundary of affected area and type of weather
system.
Melbourne Storm Force Warning 2.
Melbourne Gale Warning 3.
Melbourne Gale Warning 11.
Melbourne Gale Warning 12.
Part 2 Situation at 200600 UTC
Trough [1] near 34S161E 38S161E to low [1] 997hPa near 44S160E. Forecast trough
[1] near 37S163E to low [1] 1001hPa near 45S163E at 201200UTC, then moving east
of area.
Trough [2] near 25S162E to low [2] 1003hPa near 33S162E to 34S162E. Forecast
near 25S169E 29S166E to low [2] 1003hPa near 30S163E to 39S164E at 211200UTC.
Cold front forecast to enter area from the west near 42S128E 46S130E 50S131E at
201200UTC, then near 45S142E 50S152E at 211200UTC.
Part 3 Forecast
Refer to latest warnings for details of the area affected.
North of line 41S129E 44S146E:
Winds not exceeding 25 knots. Moderate to rough seas. Low to moderate swell.
Remainder, outside warning areas.
Westerly quarter winds, shifting southerly quarter west of troughs, northerly
quarter east of troughs and northeasterly quarter within 480nm east of cold
front . WInds turning clockwise within 180nm of lows. Wind speeds 20/33 knots.
Rough seas. Moderate to heavy swell.
Rain areas, scattered showers and isolated thunderstorms throughout. Heavy at
times within 240nm of troughs and lows. 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.
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 20 May 2026
Part 1 Warnings
Refer to latest warnings for boundary of affected area and type of weather
system.
Melbourne Storm Force Warning 2.
Melbourne Gale Warning 4.
Part 2 Situation at 200600 UTC
Trough 12S118E 16S122E. Forecast trough near 15S117E 18S119E 18S121E at
211200UTC.
Cold front [1] near 41S124E 50S124E. Forecast near 41S124E 50S124E at
201200UTC, exiting east of area.
Cold front [2] near 40S094E 45S101E to low [1] 994hPa near 48S098E. Forecast
near 40S119E to low [1] 1009hPa near 49S126E at 211200UTC.
Cold front [3] near 41S086E 46S090E to low [2] 990hPa near 49S088E. Forecast
near 39S109E to low [2] 1003hPa near 47S116E at 210000UTC.
Cold front [4] forecast to enter area near 36S068E 50S086E by 201800UTC, then
near 30S082E 50S091E at 211200UTC.
Part 3 Forecast
Refer to latest warnings for details of the area affected.
South of line 30S080E 30S090E 25S113E 35S118E 33S129E, outside warning areas:
Westerly quarter winds, shifting northwesterly quarter east of cold front [1],
within 180nm east of cold front [2], and within 480nm east of cold front [4],
shifting southwesterly quarter 240nm west of cold front [3]. Winds turning
clockwise within 180nm of low [1] and 90nm of low [1]. Wind speeds 20/33 knots.
Rough to very rough seas. Moderate to heavy swell.
West of line 12S113E 20S119E:
Northeasterly quarter winds west of trough. WInd speeds 20/30 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 180nm of
fronts and southeast of line 12S121E 20S112E. Heavy at times 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 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 20 MAY 2026
PART 1 WARNINGS
NIL.
PART 2 SITUATION AT 200600 UTC
TROUGH NEAR 05S100E 11S107E. FORECAST NEAR 02S095E 11S106E AT
211200UTC.
PART 3 FORECAST
SOUTH OF LINE 07S125E 07S142E:
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
MODERATE SOUTH OF LINE EQ090E EQ098E 08S107E 09S119E.
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 WEDNESDAY.=