Bulletinset for METAREA 11 Edition date (UTC): 2026-08-21 01:03:34 ============================ TYPHOON WARNING JAPAN ============================ WTJP21 RJTD 210000 WARNING 210000. WARNING VALID 220000. WARNING IS UPDATED EVERY 6 HOURS. TYPHOON WARNING. SEVERE TROPICAL STORM 2618 SAUDEL (2618) 985 HPA AT 14.3N 149.5E MARIANAS MOVING NORTHNORTHWEST 12 KNOTS. POSITION FAIR. MAX WINDS 50 KNOTS NEAR CENTER. RADIUS OF OVER 30 KNOT WINDS 180 MILES SOUTH SEMICIRCLE AND 150 MILES ELSEWHERE. FORECAST POSITION FOR 211200UTC AT 16.0N 148.0E WITH 35 MILES RADIUS OF 70 PERCENT PROBABILITY CIRCLE. 970 HPA, MAX WINDS 65 KNOTS NEAR CENTER. FORECAST POSITION FOR 220000UTC AT 17.8N 146.7E WITH 50 MILES RADIUS OF 70 PERCENT PROBABILITY CIRCLE. 960 HPA, MAX WINDS 75 KNOTS NEAR CENTER. EXTENDED OUTLOOK. FORECAST POSITION FOR 230000UTC AT 21.1N 142.5E WITH 70 MILES RADIUS OF 70 PERCENT PROBABILITY CIRCLE. 925 HPA, MAX WINDS 95 KNOTS NEAR CENTER. FORECAST POSITION FOR 240000UTC AT 23.6N 136.8E WITH 100 MILES RADIUS OF 70 PERCENT PROBABILITY CIRCLE. 925 HPA, MAX WINDS 95 KNOTS NEAR CENTER. FORECAST POSITION FOR 250000UTC AT 25.3N 132.1E WITH 125 MILES RADIUS OF 70 PERCENT PROBABILITY CIRCLE. 945 HPA, MAX WINDS 85 KNOTS NEAR CENTER. FORECAST POSITION FOR 260000UTC AT 26.9N 128.5E WITH 180 MILES RADIUS OF 70 PERCENT PROBABILITY CIRCLE. 965 HPA, MAX WINDS 70 KNOTS NEAR CENTER. JAPAN METEOROLOGICAL AGENCY.= ============================ TYPHOON WARNING JAPAN ============================ WTJP31 RJTD 202100 WARNING 202100. WARNING VALID 212100. TYPHOON WARNING. SEVERE TROPICAL STORM 2618 SAUDEL (2618) 990 HPA AT 13.5N 149.6E MARIANAS MOVING NORTHNORTHWEST 11 KNOTS. POSITION FAIR. MAX WINDS 50 KNOTS NEAR CENTER. RADIUS OF OVER 30 KNOT WINDS 180 MILES SOUTH SEMICIRCLE AND 150 MILES ELSEWHERE. FORECAST POSITION FOR 210900UTC AT 15.5N 148.4E WITH 40 MILES RADIUS OF 70 PERCENT PROBABILITY CIRCLE. 980 HPA, MAX WINDS 60 KNOTS NEAR CENTER. FORECAST POSITION FOR 212100UTC AT 17.3N 147.1E WITH 57 MILES RADIUS OF 70 PERCENT PROBABILITY CIRCLE. 965 HPA, MAX WINDS 70 KNOTS NEAR CENTER. JAPAN METEOROLOGICAL AGENCY.= ============================ HIGH SEAS FORECAST CHINA ============================ WWCI50 BABJ 201800 2:1:31:11:01:00 BT SECURITE = MESSAGE FOR METAREA XI (CHINA) ISSUED BY NMC BEIJING AT 2215UTC AUG.20 2026 = MESSAGE IS UPDATED EVERY 06 HOURS = SYNOPSIS VALID 1800UTC AUG.20 = FCST VALID 1800UTC AUG.21 = WARNNING= NIL= SUMMARY= ELY WINDS FROM 10 TO 12M/S GUSTS 14M/S SEAS UP TO 1.5M OVER NORTHERN PART OF EAST CHINA SEA= WLY WINDS FROM 10 TO 12M/S GUSTS 14M/S SEAS UP TO 1.5M OVER SEA EAST OF TAIWAN= SW/SLY WINDS FROM 10 TO 14M/S GUSTS 18M/S SEAS UP TO 2.0M OVER BASHI CHANNEL AND NORTHERN PART OF SOUTH CHINA SEA= CYCLONIC WINDS FROM 10 TO 12M/S GUSTS 14M/S SEAS UP TO 1.5M OVER BEIBU GULF= HORIZONTAL VISIBILITY LESS THAN 10KM OVER BOHAI SEA AND CENTRAL PART OF YELLOW SEA AND WESTERN PART OF EAST CHINA SEA AND BASHI CHANNEL AND NORTHERN PART OF SOUTH CHINA SEA AND BEIBU GULF AND WEST CENTRAL SOUTH CHINA SEA AND JAPAN SEA AND KOREA STRAIT AND SEA WEST OF GUAM AND THAILAND GULF AND MALACCA STRAIT AND SEA EAST OF SINGAPORE AND SEA SOUTH OF SUMATERA AND SUNDA STRAIT AND LAUT JAWA AND SEA SOUTH OF JAWA AND MAKASSAR STRAIT AND SEA SOUTHWEST OF THE PHILIPPINES AND LAUT MALUKU AND LAUT BANDA= FCST= NORTHERN PART OF EAST CHINA SEA E WINDS VEER SE 08 TO 12M/S GUSTS 12 TO 16M/S SEA STATE MODERATE LIGHT RAIN VIS MODERATE= SOUTHERN PART OF EAST CHINA SEA SE WINDS 08 TO 12M/S GUSTS 12 TO 16M/S SEA STATE MODERATE LIGHT RAIN VIS MODERATE= SEA EAST OF TAIWAN SW WINDS 12 TO 16M/S GUSTS 16 TO 20M/S SEA STATE MODERATE MODERATE RAIN BECMG LIGHT RAIN VIS MODERATE= BASHI CHANNEL SW WINDS 12 TO 16M/S GUSTS 16 TO 20M/S SEA STATE MODERATE MODERATE RAIN BECMG LIGHT RAIN VIS MODERATE= BEIBU GULF W WINDS 12 TO 16M/S GUSTS 16 TO 20M/S DECR 08 TO 12M/S GUSTS 12 TO 16M/S SEA STATE MODERATE MODERATE RAIN VIS MODERATE= QIONGZHOU STRAIT SE WINDS 08 TO 12M/S GUSTS 12 TO 16M/S VEER SW WINDS 08 TO 12M/S GUSTS 12 TO 16M/S SEA STATE MODERATE TO SLIGHT CLOUDY VIS GOOD= NORTHWESTERN PART OF SOUTH CHINA SEA SW WINDS 12 TO 16M/S GUSTS 16 TO 20M/S DECR 08 TO 12M/S GUSTS 12 TO 16M/S SEA STATE MODERATE MODERATE RAIN BECMG CLOUDY VIS MODERATE TO GOOD= NORTHEASTERN PART OF SOUTH CHINA SEA SW WINDS 08 TO 12M/S GUSTS 12 TO 16M/S SEA STATE ROUGH TO MODERATE MODERATE RAIN BECMG LIGHT RAIN VIS MODERATE= WEST CENTRAL SOUTH CHINA SEA SW WINDS 12 TO 16M/S GUSTS 16 TO 20M/S DECR 08 TO 12M/S GUSTS 12 TO 16M/S SEA STATE ROUGH TO MODERATE CLOUDY VIS GOOD= EAST CENTRAL SOUTH CHINA SEA SW WINDS 12 TO 16M/S GUSTS 16 TO 20M/S DECR 08 TO 12M/S GUSTS 12 TO 16M/S SEA STATE ROUGH TO MODERATE CLOUDY VIS GOOD= SOUTHWESTERN PART OF SOUTH CHINA SEA SW WINDS 08 TO 12M/S GUSTS 12 TO 16M/S SEA STATE MODERATE CLOUDY VIS GOOD= SOUTHEASTERN PART OF SOUTH CHINA SEA SW WINDS 08 TO 12M/S GUSTS 12 TO 16M/S SEA STATE MODERATE CLOUDY VIS GOOD= SEA EAST OF RYUKYU ISLANDS SW WINDS BACK S 08 TO 12M/S GUSTS 12 TO 16M/S SEA STATE MODERATE MODERATE RAIN VIS MODERATE= SEA WEST OF GUAM W WINDS 08 TO 12M/S GUSTS 12 TO 16M/S SEA STATE MODERATE MODERATE RAIN VIS MODERATE= SEA NORTHEAST OF INDONESIA W WINDS 08 TO 12M/S GUSTS 12 TO 16M/S SEA STATE MODERATE CLOUDY VIS GOOD= ANDAMAN SEA SW WINDS 08 TO 12M/S GUSTS 12 TO 16M/S SEA STATE MODERATE MODERATE RAIN VIS MODERATE= ============================ HIGH SEAS FORECAST JAPAN ============================ WWJP90 RJTD 201800 EGC:2:1:31:11:01:00 SECURITE. THIS WARNING IS ISSUED FOR NORTH OF THE EQUATOR AND EAST OF 100E IN METAREA XI BY JMA. WARNING AND SUMMARY 201800. WARNING VALID 211800. WARNING IS UPDATED EVERY 6 HOURS. GALE WARNING. DEVELOPED LOW 1006 HPA AT 38N 159E FAR OFF EAST OF JAPAN MOVING NORTH SLOWLY. WINDS 30 TO 35 KNOTS WITHIN 200 MILES OF LOW. EXPECTED WINDS 30 TO 35 KNOTS WITHIN 200 MILES OF LOW FOR NEXT 6 HOURS. WARNING. TROPICAL DEPRESSION 998 HPA AT 20.6N 108.6E GULF OF TONGKING MOVING NW 08 KNOTS. POSITION FAIR. MAX WINDS 30 KNOTS NEAR CENTER. WARNING. DENSE FOG OBSERVED LOCALLY OVER SEA OF OKHOTSK JAPAN SEA. WARNING. DENSE FOG OBSERVED LOCALLY OVER WATERS BOUNDED BY 36N 141E 42N 141E 47N 152E 55N 162E 60N 163E 60N 180E 45N 180E 31N 172E 31N 166E 40N 163E 40N 150E 36N 141E. SUMMARY. LOW 1006 HPA AT 52N 131E ENE 15 KT. LOW 1004 HPA AT 59N 166E ENE 25 KT. TROPICAL DEPRESSION 1004 HPA AT 25N 124E ALMOST STATIONARY. LOW PRESSURE AREA 1008 HPA NEAR 06N 176E WEST SLOWLY. HIGH 1014 HPA AT 41N 130E ESE SLOWLY. HIGH 1014 HPA AT 46N 141E SSE SLOWLY. HIGH 1016 HPA AT 35N 147E SSE SLOWLY. HIGH 1028 HPA AT 44N 180E SE SLOWLY. STATIONARY FRONT FROM 36N 134E TO 39N 140E 43N 145E 45N 149E 49N 151E 52N 152E 54N 155E 55N 158E. REMARKS. SEVERE TROPICAL STORM 2618 SAUDEL (2618) 990 HPA AT 13.2N 149.5E : SEE TROPICAL CYCLONE WARNING. 24 HOUR FORECAST. SEA OF OKHOTSK WIND S 25KT SEAS 2 M. JAPAN SEA WIND SW 20KT SEAS 2 M. BOHAI AND YELLOW SEA WIND SE 20KT SEAS 2 M. EAST CHINA SEA WIND SE 30KT SEAS 3 M. SOUTH CHINA SEA AND GULF OF TONGKING WIND SW 30KT SEAS 4 M. SEA AROUND KURILS WIND S 20KT SEAS 2 M. SEA EAST OF KURILS WIND SW 20KT SEAS 2 M. SEA EAST OF JAPAN WIND SW 20KT SEAS 2 M. FAR OFF EAST OF JAPAN WIND S 35KT SEAS 3 M. SEA SOUTH OF JAPAN WIND SE 15KT SEAS 3 M. SEA SOUTH OF OKINAWA WIND SW 30KT SEAS 3 M. CHICHIJIMA WIND E 30KT SEAS 4 M WITH MODERATE SWELL. MINAMITORISHIMA WIND SE 40KT SEAS 6 M WITH MODERATE SWELL. SEA EAST OF PHILIPPINES WIND SW 25KT SEAS 3 M. SEA EAST OF MINDANAO AND CELEBES SEA AND SULU SEA WIND SW 20KT SEAS 1 M. MARIANAS WIND SE 70KT SEAS 8 M WITH HEAVY SWELL. TRUK AND CAROLINES WIND S 45KT SEAS 6 M. WAKE WIND NE 15KT SEAS 2 M. MARSHALLS WIND S 15KT SEAS 2 M. MIDWAY WIND NE 15KT SEAS 2 M WITH MODERATE SWELL. SEA SOUTH OF ALEUTIANS WIND SE 30KT SEAS 2 M. BERING SEA AND SEA AROUND ALEUTIANS AND SEA EAST OF KAMCHATKA WIND SW 30KT SEAS 3 M. HONG KONG METEOROLOGICAL SERVICE PROVIDES THE FOLLOWING WARNING/INFORMATION FOR THE SOUTH CHINA SEA. WARNINGS TROPICAL DEPRESSION (TD) OVER GULF OF TONKIN: NIL. SYNOPSIS (201800UTC) AND 24-HOUR FORECAST AT 201800UTC, TD OVER GULF OF TONKIN WITH CENTRAL PRESSURE 996 HPA AND MAXIMUM WINDS 25 KTS WAS CENTERED WITHIN 60 NM OF 20.0N 108.7E AND IS FORECAST TO MOVE N SLOWLY FOR THE NEXT 24 HOURS. FORECAST POSITION AT 211800UTC: 20.8N, 108.5E SIGNIFICANT SWELL/HIGH SEAS NIL. THUNDERSTORMS/SEVERE WEATHER FREQUENT HEAVY SQUALLY (SQ) SHOWERS (SH) AND THUNDERSTORMS (TS) WITHIN 180 NM FROM CENTRE OF TD. OCCASIONAL HEAVY SQ SH AND TS OVER SEAS NEAR TAIWAN, NORTHERN PART OF THE SOUTH CHINA SEA (SCS), SEAS NEAR HAINAN AND LUZON STRAIT. SCATTERED SQ SH AND TS OVER THE EAST CHINA SEA, SEAS NEAR LUZON AND CENTRAL PART OF THE SCS. ISOLATED SQ SH AND TS OVER SOUTHERN PART OF THE SCS AND GULF OF THAILAND. SEA FOG/REDUCED VISIBILITY VISIBILITY DOWN TO 500 M IN SQ SH AND TS. JAPAN METEOROLOGICAL AGENCY.= ============================ HIGH SEAS FORECAST HONG KONG CHINA ============================ WWHK82 VHHH 201800 40:1:31:11:01:00 HONG KONG METEOROLOGICAL SERVICE PROVIDES THE FOLLOWING WARNING/INFORMATION FOR THE SOUTH CHINA SEA. WARNINGS TROPICAL DEPRESSION (TD) OVER GULF OF TONKIN: NIL. SYNOPSIS (201800UTC) AND 24-HOUR FORECAST AT 201800UTC, TD OVER GULF OF TONKIN WITH CENTRAL PRESSURE 996 HPA AND MAXIMUM WINDS 25 KTS WAS CENTERED WITHIN 60 NM OF 20.0N 108.7E AND IS FORECAST TO MOVE N SLOWLY FOR THE NEXT 24 HOURS. FORECAST POSITION AT 211800UTC: 20.8N, 108.5E SIGNIFICANT SWELL/HIGH SEAS NIL. THUNDERSTORMS/SEVERE WEATHER FREQUENT HEAVY SQUALLY (SQ) SHOWERS (SH) AND THUNDERSTORMS (TS) WITHIN 180 NM FROM CENTRE OF TD. OCCASIONAL HEAVY SQ SH AND TS OVER SEAS NEAR TAIWAN, NORTHERN PART OF THE SOUTH CHINA SEA (SCS), SEAS NEAR HAINAN AND LUZON STRAIT. SCATTERED SQ SH AND TS OVER THE EAST CHINA SEA, SEAS NEAR LUZON AND CENTRAL PART OF THE SCS. ISOLATED SQ SH AND TS OVER SOUTHERN PART OF THE SCS AND GULF OF THAILAND. SEA FOG/REDUCED VISIBILITY VISIBILITY DOWN TO 500 M IN SQ SH AND TS. ============================ HIGH SEAS FORECAST NORTHERN AUSTRALIA ============================ FQAU21 AMMC 202015 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 20 AUGUST 2026 PART 1 WARNINGS NIL. PART 2 SITUATION AT 201800 UTC NIL SIGNIFICANT FEATURES. PART 3 FORECAST EAST OF LINE EQ129E 03S108E 06S108E 12S114E: SOUTHEASTERLY QUARTER WINDS 15/25 KNOTS. MODERATE TO ROUGH SEAS. LOW SWELL, INCREASING TO MODERATE SOUTH OF LINE 08S110E 09S114E 09S119E. REMAINDER: WINDS NOT EXCEEDING 20 KNOTS. SLIGHT TO MODERATE SEAS. LOW TO MODERATE SWELL. RAIN AREAS, SCATTERED SHOWERS AND ISOLATED THUNDERSTORMS THROUGHOUT AREA EXCEPT SOUTH OF LINE 11S127E 08S108E 01S090E. 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 FRIDAY.=