Bulletinset for METAREA 10 Edition date (UTC): 2026-07-23 11:23:04 ============================ HIGH SEAS FORECAST SOUTH-EASTERN ============================ FQAU22 AMMC 230900 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 23 July 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 11. Part 2 Situation at 230600 UTC Trough [1] 39S150E 50S152E. Forecast trough 29S166E 33S168E 43S167E at 240600UTC, then east of area thereafter. Forecast trough [2] entering area from the west near 43S129E 50S130E at 231200UTC, and trough [2] 38S156E 46S154E 47S146E at 241200UTC. Part 3 Forecast Refer to latest warnings for details of the area affected. South of line 40S129E 37S150E 34S154E 29S169E, outside warning areas: Westerly quarter winds, shifting northwesterly quarter within 120nm east of trough [2] and shifting southwesterly quarter west of trough [1] and within 180nm southwest of trough [2]. 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, increasing to heavy swell south of line 33S129E 34S134E 37S140E 38S141E. Rain areas, scattered showers and isolated thunderstorms mostly within 180nm 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 Thursday. ============================ HIGH SEAS FORECAST WESTERN ============================ FQAU23 AMMC 230900 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 23 July 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 230600 UTC Trough [1] 44S124E 50S124E, forecast east of area by 231200UTC. Trough [2] 35S093E 48S111E. Forecast 42S111E 47S118E at 232100UTC, then weakening thereafter. Cold front 42S080E 49S087E. Forecast 38S090E 42S094E to developing low 999hPa near 45S093E at 240000UTC, then cold front 34S095E 41S103E 46S102E to low 1003hPa near 44S098E at 241200UTC. Part 3 Forecast Refer to latest warnings for details of the area affected. North of line 16S091E 20S100E 20S122E: Southeasterly quarter winds 20/30 knots. Rough seas. Low to moderate swell. South of line 30S082E 40S107E 44S120E 40S129E, outside warning areas: Westerly quarter winds, shifting northwesterly quarter east of troughs and cold front, shifting southwesterly quarter west of cold front, and tending clockwise within 240nm of low. 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, increasing to heavy south of line 36S126E 33S129E. Rain areas, scattered showers and isolated thunderstorms mostly within 240nm of cold front, warm front 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 21:00 UTC Thursday. ============================ HIGH SEAS FORECAST NORTH-EASTERN ============================ FQAU20 AMMC 230900 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 23 July 2026 Part 1 Warnings Nil. Part 2 Situation at 230600 UTC Trough 10S157E 09S170E, forecast slow moving and weakening by 241200UTC. Part 3 Forecast South of line 10S143E 12S170E: Southeasterly quarter winds 20/30 knots. Rough seas. Low to moderate swell. Within 120nm of line 09S152E 01S155E: 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 moderate south of line 11S160E 07S170E. Rain areas, scattered showers and isolated thunderstorms mostly throughout area. Heavy at times within 60nm 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 Thursday. ============================ HIGH SEAS FORECAST NORTHERN ============================ FQAU21 AMMC 230815 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 23 JULY 2026 PART 1 WARNINGS NIL. PART 2 SITUATION AT 230600 UTC SOUTHEASTERLY TRADE FLOW. PART 3 FORECAST SOUTH OF LINE 01S090E 01S100E 07S107E 10S123E: SOUTHEASTERLY QUARTER WINDS 20/30 KNOTS. ROUGH SEAS. LOW TO MODERATE SWELL. WITHIN 90NM OF LINE 08S130E 09S140E: SOUTHEASTERLY QUARTER WINDS 15/25 KNOTS. MODERATE TO ROUGH SEAS. LOW SWELL. REMAINDER: WINDS NOT EXCEEDING 20 KNOTS. SLIGHT TO MODERATE SEAS. LOW SWELL. SCATTERED SHOWERS AND ISOLATED THUNDERSTORMS THROUGHOUT MOST OF 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 THURSDAY.=