Bulletinset for METAREA 10 Edition date (UTC): 2026-08-25 17:25:17 ============================ HIGH SEAS FORECAST SOUTH-EASTERN ============================ FQAU22 AMMC 250900 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 25 August 2026 Part 1 Warnings Melbourne Gale Warning 12. Part 2 Situation at 250600 UTC Forecast cold front entering from west near 45S129E 50S132E at 251800UTC, then near 43S133E 50S140E at 261200UTC. Trough 37S150E to low [1] 1010hPa near 41S152E. Forecast trough 34S155E to low [1] 1009hPa near 43S158E at 251800UTC, then just trough 28S156E 39S163E and separate low [1] 1008hPa near 42S158E at 261200UTC. Forecast low [2] 1016hPa developing near 45S147E at 250900UTC. Forecast low [2] 1014 hPa near 43S149E at 260000UTC, decaying thereafter. Part 3 Forecast Refer to latest warnings for details of the area affected. South of line 37S129E 44S142E 28S154E 33S168E: Westerly quarter winds, shifting northwesterly quarter within 240nm east of cold front and within 120nm east of trough. Winds turning clockwise within 120nm of low [1] and within 60nm of low [2]. Wind speeds 20/33 knots. Moderate to rough seas. Heavy swell. Remainder: Winds not exceeding 25 knots. Slight to moderate seas. Low to moderate swell increasing to heavy swell south of line 45S129E 43S161E. Rain areas, scattered showers and isolated thunderstorms mainly within 240nm of front, heavy at times within 120nm east of trough and 180nm of low [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 21:00 UTC Tuesday. ============================ HIGH SEAS FORECAST WESTERN ============================ FQAU23 AMMC 250900 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 25 August 2026 Part 1 Warnings Refer to latest warnings for boundary of affected area and type of weather system. Melbourne Gale Warning 9. Melbourne Gale Warning 11. Part 2 Situation at 250600 UTC Trough [1] 38S105E to low 978hPa near 46S105E. Forecast trough [1] 42S127E to low 994hPa near 50S127E at 261200UTC. Cold front 43S125E 49S125E 50S124E. Forecast cold front 48S129E 50S128E at 251200UTC, east of area thereafter. Forecast trough [2] entering area from west near 47S080E 49S086E at 251800UTC, then near 44S080E 50S094E at 261200UTC. Part 3 Forecast Refer to latest warnings for details of the area affected. South of line 35S080E 40S092E 37S110E 37S129E outside warning areas: Westerly quarter winds, shifting northerly quarter east of cold front, tending northwesterly quarter within 420nm west of trough [1] and within 780nm west of trough [2]. Winds turning clockwise within 720nm of low initially, contracting to within 300nm of low by 261200UTC. Wind speeds 20/33 knots. Rough to very rough seas. Moderate to heavy swell. Remainder: Winds not exceeding 25 knots. Slight to moderate seas. Low to moderate swell, increasing to moderate to heavy swell south of line 23S090E 22S102E 26S114E. Rain areas, scattered showers and isolated thunderstorms mostly within 240nm of front, within 180nm of low and within 60nm of line 27S111E 36S120E. 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 Tuesday. ============================ HIGH SEAS FORECAST NORTH-EASTERN ============================ FQAU20 AMMC 250900 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 25 August 2026 Part 1 Warnings Nil. Part 2 Situation at 250600 UTC Trough 01S170E 05S153E. Forecast slow moving. Part 3 Forecast East of line 03S169E 12S153E 19S156E: Easterly quarter winds 15/25 knots. Moderate to rough seas. Low to moderate swell. Within 60nm of Vitiaz Strait: Southeasterly winds reaching 20/30 knots. Moderate to rough seas. Low 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 line 12S155E 10S170E and within 60nm of line 06S142E 09S148E. 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 Tuesday. ============================ HIGH SEAS FORECAST NORTHERN ============================ FQAU21 AMMC 250815 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 25 AUGUST 2026 PART 1 WARNINGS NIL. PART 2 SITUATION AT 250600 UTC NIL SIGNIFICANT FEATURES. PART 3 FORECAST WITHIN 60NM OF LINE 08S108E 08S103E: 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 WEST OF 120E SOUTH OF INDONESIA. SCATTERED SHOWERS AND ISOLATED THUNDERSTORMS MAINLY NORTH OF LINE 06S096E 06S104E. 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 TUESDAY.=