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 22 May 2026
Part 1 Warnings
Refer to latest warnings for boundary of affected area and type of weather
system.
Melbourne Gale Warning 6.
Part 2 Situation at 220600 UTC
Cold front [1] near 32S128E 38S130E 43S130E. Forecast near 31S132E 38S135E
46S135E 50S138E at 231200UTC, east of area.
Cold front [2] 40S095E 50S103E. Forecast 46S123E 50S129E at 231200UTC.
Trough [1] 32S088E to low [1] 1000hPa near 39S095E. Forecast 39S106E 40S110E to
low [1] 1014hPa near 43S113E at 231200UTC.
Warm front 28S083E 31S081E to low [2] 1011hPa near 31S077E. Forecast warm front
39S104E 40S097E to low 992hPa near 39S094E at 231200UTC.
Forecast trough [2] near 37S073E 45S075E 49S070E at 221500UTC, entering from
west, then near 34S083E 43S083E 47S079E at 231200UTC.
Part 3 Forecast
Refer to latest warnings for details of the area affected.
South of line 30S080E 27S090E 42S124E 50S129E, outside warning areas:
Northwesterly quarter winds shifting southwesterly quarter within 480nm west of
cold front [2] and 240nm of cold front [1], shifting easterly quarter within
120nm south of warm front, northeasterly quarter within 300nm of trough [2],
and turning clockwise within 90nm of lows. 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 mainly within 180nm of
trough/fronts and within 180nm of lows, and north of line 20S090E 18S123E.
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 Friday.
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 22 May 2026
Part 1 Warnings
Refer to latest warnings for boundary of affected area and type of weather
system.
Melbourne Gale Warning 3.
Part 2 Situation at 220600 UTC
Low [1] 997hPa near 27S162E. Forecast low 1001hPa near 26S165E at 231200UTC.
Cold front 32S128E 39S129E to low [2] 1010hPa near 46S133E to warm front near
48S137E 47S143E. Forecast warm front near 49S135E 50S137E 49S144E at 221200UTC,
exiting south and low decaying, then cold front near 31S132E 38S135E 46S135E
50S138E at 231200UTC.
Part 3 Forecast
Refer to latest warnings for details of the area affected.
East of line 25S153E 35S152E 40S163E, outside warning areas:
Clockwise within 480nm of low [1]. Wind speeds 20/33 knots. Rough seas.
Moderate to heavy swell.
South of line 50S144E 46S160E, outside warning areas:
Westerly quarter winds until 221800UTC. Wind speeds 20/33 knots. Rough seas.
Moderate to heavy swell.
West or line 50S142E 35S136E:
Northerly quarter east of cold front, shifting southwesterly west of cold
front, turning clockwise 90nm around low [2]. WInd speeds 15/25 knots. Moderate
to rough seas. Moderate swell increasing to heavy south of 45S.
Remainder:
Winds not exceeding 25 knots. Moderate to rough seas. Low to moderate swell,
increasing to moderate to heavy south of 44S.
Rain areas, scattered showers and isolated thunderstorms throughout. Heavy at
times within 240nm of fronts 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 Friday.
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 22 May 2026
Part 1 Warnings
Nil.
Part 2 Situation at 220600 UTC
Trough [1] near 22S159E 25S162E. Forecast 18S164E 24S169E 25S169E at 231200UTC.
Trough [2] 02S150E 11S170E. Forecast slow moving, then decaying after 230000UTC.
Part 3 Forecast
West of line 03S147E 11S156E 20S148E:
Southeasterly quarter winds 15/25 knots. Moderate to rough seas. Low to
moderate swell.
South of line 20S148E 19S165E 22S170E:
Northwesterly quarter winds shifting southwesterly quarter winds west of trough
[2]. Wind speeds 15/25 knots, increasing to 20/30 knots south of line 21S152E
20S166E 24S168E. Moderate to rough seas. Moderate to heavy swell.
Remainder:
Winds not exceeding 20 knots. Slight to moderate seas. Low swell, increasing to
low to moderate swell south of line 20S170E 11S166E 07S142E.
Rain areas, scattered showers and isolated thunderstorms throughout most of
area except west of line 09S142E 15S165E 22S151E, heavy at times within 120nm
of 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 Friday.
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 22 MAY 2026
PART 1 WARNINGS
NIL.
PART 2 SITUATION AT 220600 UTC
TROUGH 01S094E 12S104E. FORECAST EQ090E 12S100E AT 231200UTC.
PART 3 FORECAST
SOUTH OF LINE 07S137E 09S142E:
SOUTHEASTERLY QUARTER WINDS 15/25 KNOTS. MODERATE TO ROUGH SEAS. LOW
SWELL.
REMAINDER:
WINDS NOT EXCEEDING 20 KNOTS. SLIGHT TO MODERATE SEAS. LOW SWELL.
RAIN AREAS, SCATTERED SHOWERS AND ISOLATED THUNDERSTORMS THROUGHOUT
THE AREA,
HEAVY AT TIMES WITHIN 90NM 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 20:15 UTC FRIDAY.=