Bulletinset for METAREA 10 Edition date (UTC): 2026-08-26 05:14:22 ============================ HIGH SEAS FORECAST SOUTH-EASTERN ============================ FQAU22 AMMC 252100 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 2300 UTC 25 August 2026 Part 1 Warnings Refer to latest warnings for boundary of affected area and type of weather system. Melbourne Gale Warning 12. Part 2 Situation at 251800 UTC Trough [1] near 31S152E 43S158E. Forecast trough [1] near 25S159E 39S164E at 270000UTC. Trough [2] near 46S129E 50S132E. Forecast trough [2] near 39S131E 48S141E 50S142E at 270000UTC. Low [1] 1008hPa near 43S155E. Forecast low [1] 1006hPa near 40S159E at 270000UTC. Low [2] 1011hPa near 45S148E. Forecast low [2] 1015hPa near 42S151E at 260600UTC and decaying thereafter. Part 3 Forecast Refer to latest warnings for details of the area affected. South of line 36S129E 45S146E 50S152E: Northwesterly quarter winds, shifting westerly quarter west of trough [2]. Wind speeds 20/33 knots. Rough to very rough seas. Moderate to heavy swell. Within 540nm of line 30S156E 47S160E, outside warning areas: Northwesterly quarter winds, shifting southwesterly quarter within 420nm west of trough [1], and turning clockwise within 360nm of low [1] and 180nm of low [2]. Wind speed 20/33 knots. Rough to very rough seas. Moderate swell, increasing to heavy swell within 120nm of lows. Remainder: Winds not exceeding 25 knots. Slight to moderate seas. Low to moderate swell. Rain areas, scattered showers and isolated thunderstorms mainly within 240nm of troughs and 360nm of lows. Heavy at times within 120nm east of troughs 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 09:00 UTC Wednesday. ============================ HIGH SEAS FORECAST WESTERN ============================ FQAU23 AMMC 252100 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 25 August 2026 Part 1 Warnings Refer to latest warnings for boundary of affected area and type of weather system. Melbourne Gale Warning 2. Melbourne Gale Warning 9. Melbourne Gale Warning 11. Part 2 Situation at 251800 UTC Low 987hPa near 47S115E. Forecast low 993hPa near 50S126E at 261200UTC and south of area thereafter. Warm front west of area, forecast to enter near 45S085E 45S080E at 261200UTC, and forecast near 48S102E 50S095E at 270000UTC. Part 3 Forecast Refer to latest warnings for details of the area affected. South of line 33S080E 40S096E 40S129E, outside warning areas: Northwesterly quarter winds, turning clockwise within 420nm of low. Wind speeds 20/33 knots. Rough to very rough seas. Moderate to heavy swell. East of line 27S109E 30S109E 34S114E: Northerly quarter winds 20/30 knots developing from 261200UTC. Rough seas. Moderate to heavy swell. Remainder: Winds not exceeding 25 knots. Slight to moderate seas. Moderate to heavy swell, easing to light swell east of line 12S112E 20S118E. Rain areas, scattered showers and isolated thunderstorms mostly within 240nm of front, within 180nm of low and within 120nm of line 13S090E 41S129E. 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 Wednesday. ============================ HIGH SEAS FORECAST NORTH-EASTERN ============================ FQAU20 AMMC 252100 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 25 August 2026 Part 1 Warnings Nil. Part 2 Situation at 251800 UTC Nil significant features. Part 3 Forecast South of line 16S145E 18S163E 25S165E and north of line EQ142E 06S170E: Winds not exceeding 20 knots. Slight to moderate seas. Low to moderate swell. Remainder: Southeasterly quarter winds 20/30 knots. Rough seas. Low to moderate swell. Rain areas, scattered showers and isolated thunderstorms throughout area. Heavy at times within 240nm of line 06S156E 07S170E . 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 Wednesday. ============================ HIGH SEAS FORECAST NORTHERN ============================ FQAU21 AMMC 252015 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 25 AUGUST 2026 PART 1 WARNINGS NIL. PART 2 SITUATION AT 251800 UTC NIL SIGNIFICANT FEATURES. PART 3 FORECAST WEST OF LINE 12S093E EQ100E AND SOUTH OF LINE 12S103E 08S112E 12S125E: WINDS NOT EXCEEDING 20 KNOTS. SLIGHT TO MODERATE SEAS. LOW SWELL INCREASING TO LOW TO MODERATE WEST OF LINE EQ094E 12S125E. REMAINDER: SOUTHEASTERLY QUARTER WINDS 15/25 KNOTS. MODERATE TO ROUGH SEAS. LOW SWELL. SCATTERED SHOWERS AND ISOLATED THUNDERSTORMS MAINLY WEST OF LINE EQ107E 12S101E. 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 WEDNESDAY.=