IDY10210
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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 22 April 2026
Part 1 Warnings
Refer to latest warnings for boundary of affected area and type of weather
system.
Melbourne Gale Warning 1.
Melbourne Gale Warning 11.
Part 2 Situation at 221800 UTC
Trough near 28S167E 31S159E. Forecast near 26S158E 32S154E at 240000UTC.
Cold front [1] near 43S149E 50S155E. Forecast to weaken by 230000UTC.
Cold front [2] approaching from west, forecast 44S131E 48S127E at 231500UTC,
then near 45S132E 50S134E at 240000UTC.
Part 3 Forecast
Refer to latest warnings for details of the area affected.
South of line 36S129E 43S146E 49S160E, outside warning area:
Northwesterly quarter winds 20/33 knots. Moderate to rough seas. Moderate to
heavy swell.
Remainder:
Winds not exceeding 25 knots. Slight to moderate seas. Low to moderate swell.
Rain areas, scattered showers and isolated thunderstorms mostly within 240nm of
fronts and 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 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 22 April 2026
Part 1 Warnings
Refer to latest warnings for boundary of affected area and type of weather
system.
Melbourne Gale Warning 1.
Melbourne Gale Warning 10.
Melbourne Gale Warning 11.
Part 2 Situation at 221800 UTC
Cold front [1] 33S113E to low [1] 996hPa near 41S116E to warm front 44S118E.
Forecast cold front [1] 44S131E to low [1] 978hPa near 48S127E to warm front
50S129E at 231500UTc and then moving southeast of area.
Trough [1] near 43S104E 50S103E. Forecast 36S113E 45S122E to low [2] 992 hPa
developing near 47S119E at 240000UTC.
Trough [2] near 12S108E 15S109E. Forecast near 12S105E 17S109E at 240000UTC.
Cold front [2] forecast to enter area from the west near 46S080E 50S085E at
231500UTC, then near 42S081E 50S096E at 240000UTC.
Part 3 Forecast
Refer to latest warnings for details of the area affected.
South of line 32S129E 40S080E, outside warning areas:
Westerly quarter winds, shifting northwesterly quarter winds east of cold front
[1]/warm front and within 500nm east of trough [1] and cold front [2].
Clockwise winds within 240nm of lows. Wind speeds 20/33 knots. Moderate to
rough seas. Moderate to heavy swell.
Remainder:
Winds not exceeding 25 knots. Slight to moderate seas. Low to moderate swell,
increasing moderate to heavy swell south of 28S.
Rain areas, scattered showers and isolated thunderstorms mostly within 240nm of
fronts/troughs, and within 300nm of lows. Heavy at times within 120nm of trough
[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 22 April 2026
Part 1 Warnings
Nil.
Part 2 Situation at 221800 UTC
Trough near 05S152E 16S168E, slow moving.
Part 3 Forecast
South of line 07S142E 18S170E and north of line 20S152E 23S170E:
Southeast quarter winds 15/25 knots, reaching 30 knots northwest of line
10S149E 16S145E. Moderate to rough seas. Low to moderate swell.
Remainder:
Winds not exceeding 20 knots. Slight to moderate seas. Low to moderate swell.
Rain areas, scattered showers, and isolated thunderstorms mainly north of 20S.
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 22 APRIL 2026
PART 1 WARNINGS
NIL.
PART 2 SITUATION AT 221800 UTC
TROUGH NEAR 08S107E TO LOW 1007HPA NEAR 11S108E. FORECAST 07S103E TO
LOW
1008HPA NEAR 12S105E AT 240000UTC.
PART 3 FORECAST
SOUTH OF LINE 09S120E 09S142E:
SOUTHEAST 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
LOW TO MODERATE SOUTH OF 01S/INDONESIA AND WEST OF 120E.
RAIN AREAS, SCATTERED SHOWERS AND ISOLATED THUNDERSTORMS THROUGHOUT
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 08:15 UTC THURSDAY.=