Bulletinset for METAREA 11 Edition date (UTC): 2026-04-19 01:35:29 ============================ TYPHOON WARNING JAPAN ============================ WTJP21 RJTD 190000 WARNING 190000. WARNING VALID 200000. WARNING IS UPDATED EVERY 6 HOURS. STORM WARNING. SEVERE TROPICAL STORM 2604 SINLAKU (2604) 980 HPA AT 26.4N 149.4E SEA AROUND OF MINAMITORISIMA MOVING NORTHEAST 16 KNOTS. POSITION FAIR. MAX WINDS 50 KNOTS NEAR CENTER. RADIUS OF OVER 30 KNOT WINDS 300 MILES SOUTHEAST SEMICIRCLE AND 180 MILES ELSEWHERE. FORECAST POSITION FOR 191200UTC AT 28.2N 153.0E WITH 30 MILES RADIUS OF 70 PERCENT PROBABILITY CIRCLE. 985 HPA, MAX WINDS 45 KNOTS NEAR CENTER. FORECAST POSITION FOR 200000UTC AT 29.1N 157.2E WITH 42 MILES RADIUS OF 70 PERCENT PROBABILITY CIRCLE. 990 HPA, MAX WINDS 40 KNOTS NEAR CENTER. EXTENDED OUTLOOK. FORECAST POSITION FOR 210000UTC AT 29.4N 166.6E WITH 100 MILES RADIUS OF 70 PERCENT PROBABILITY CIRCLE. 996 HPA, MAX WINDS 35 KNOTS. BECOMING EXTRATROPICAL LOW. JAPAN METEOROLOGICAL AGENCY.= ============================ TYPHOON WARNING JAPAN ============================ WTJP31 RJTD 182100 WARNING 182100. WARNING VALID 192100. STORM WARNING. SEVERE TROPICAL STORM 2604 SINLAKU (2604) 980 HPA AT 25.6N 148.9E SEA AROUND OF MINAMITORISIMA MOVING NORTHEAST 16 KNOTS. POSITION FAIR. MAX WINDS 50 KNOTS NEAR CENTER. RADIUS OF OVER 30 KNOT WINDS 300 MILES EAST SEMICIRCLE AND 180 MILES ELSEWHERE. FORECAST POSITION FOR 190900UTC AT 27.9N 152.0E WITH 25 MILES RADIUS OF 70 PERCENT PROBABILITY CIRCLE. 980 HPA, MAX WINDS 50 KNOTS NEAR CENTER. FORECAST POSITION FOR 192100UTC AT 28.9N 156.1E WITH 35 MILES RADIUS OF 70 PERCENT PROBABILITY CIRCLE. 985 HPA, MAX WINDS 45 KNOTS NEAR CENTER. JAPAN METEOROLOGICAL AGENCY.= ============================ HIGH SEAS FORECAST JAPAN ============================ WWJP90 RJTD 181800 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 181800. WARNING VALID 191800. WARNING IS UPDATED EVERY 6 HOURS. STORM WARNING. DEVELOPING LOW 960 HPA AT 55N 178E SEA AROUND ALEUTIANS MOVING NNE 10 KNOTS. OCCLUDED FRONT FROM 55N 178E TO 57N 180E 58N 176W. WARM FRONT FROM 58N 176W TO 56N 169W 51N 163W. COLD FRONT FROM 58N 176W TO 52N 172W 44N 172W 37N 176W 33N 180E. STATIONARY FRONT FROM 33N 180E TO 31N 177E 27N 174E 25N 168E 25N 162E. WINDS 30 TO 50 KNOTS WITHIN 1000 MILES OF LOW SOUTH SEMICIRCLE AND 500 MILES ELSEWHERE. EXPECTED WINDS 30 TO 50 KNOTS WITHIN 1000 MILES OF LOW SOUTH SEMICIRCLE AND 500 MILES ELSEWHERE FOR NEXT 24 HOURS. FORECAST POSITION FOR 191800UTC AT 57N 180W WITH UNCERTAINTY OF 80 MILES RADIUS. GALE WARNING. DEVELOPING LOW 1000 HPA AT 46N 148E SEA AROUND KURILS MOVING EAST 25 KNOTS. EXPECTED WINDS 30 TO 40 KNOTS WITHIN 700 MILES OF LOW EAST SEMICIRCLE AND 400 MILES ELSEWHERE WITHIN NEXT 24 HOURS. WARNING. DENSE FOG OBSERVED LOCALLY OVER SEA OF OKHOTSK SEA OF JAPAN BOHAI YELLOW SEA EAST CHINA SEA NORTHERN PART OF SOUTH CHINA SEA. WARNING. DENSE FOG OBSERVED LOCALLY OVER WATERS BOUNDED BY 36N 141E 42N 141E 44N 146E 47N 152E 49N 167E 60N 169E 60N 180E 48N 180E 41N 167E 41N 157E 37N 148E 36N 141E. SUMMARY. LOW 1008 HPA AT 31N 128E ALMOST STATIONARY. HIGH 1014 HPA AT 28N 120E EAST SLOWLY. HIGH 1018 HPA AT 40N 136E EAST 10 KT. HIGH 1024 HPA AT 37N 167E EAST 25 KT. REMARKS. SEVERE TROPICAL STORM 2604 SINLAKU (2604) 980 HPA AT 24.9N 148.1E : SEE TROPICAL CYCLONE WARNING. HONG KONG METEOROLOGICAL SERVICE PROVIDES THE FOLLOWING WARNING/INFORMATION FOR THE SOUTH CHINA SEA. WARNINGS NIL. SYNOPSIS (181800UTC) AND 24-HOUR FORECAST UNSETTLED WEATHER IS AFFECTING SEAS EAST OF TAIWAN, SEAS NEAR MALAYSIA AND GULF OF THAILAND. BESIDES, LOW VISIBILITY CONDITIONS ARE AFFECTING THE EAST CHINA SEA (ECS), TAIWAN STRAIT AND SEAS NEAR KWANGTUNG. SIGNIFICANT SWELL/HIGH SEAS NIL. THUNDERSTORMS/SEVERE WEATHER ISOLATED SQUALLY (SQ) SHOWERS (SH) AND THUNDERSTORMS (TS) OVER SEAS EAST OF TAIWAN, SEAS NEAR MALAYSIA AND GULF OF THAILAND. SEA FOG/REDUCED VISIBILITY VISIBILITY DOWN TO 4000 M IN SQ SH AND TS. VISIBILITY DOWN TO 4000 M IN MIST PATCHES OR SOME HAZE OVER THE ECS, TAIWAN STRAIT AND SEAS NEAR KWANGTUNG. JAPAN METEOROLOGICAL AGENCY.= ============================ HIGH SEAS FORECAST HONG KONG CHINA ============================ WWHK82 VHHH 181800 40:1:31:11:01:00 HONG KONG METEOROLOGICAL SERVICE PROVIDES THE FOLLOWING WARNING/INFORMATION FOR THE SOUTH CHINA SEA. WARNINGS NIL. SYNOPSIS (181800UTC) AND 24-HOUR FORECAST UNSETTLED WEATHER IS AFFECTING SEAS EAST OF TAIWAN, SEAS NEAR MALAYSIA AND GULF OF THAILAND. BESIDES, LOW VISIBILITY CONDITIONS ARE AFFECTING THE EAST CHINA SEA (ECS), TAIWAN STRAIT AND SEAS NEAR KWANGTUNG. SIGNIFICANT SWELL/HIGH SEAS NIL. THUNDERSTORMS/SEVERE WEATHER ISOLATED SQUALLY (SQ) SHOWERS (SH) AND THUNDERSTORMS (TS) OVER SEAS EAST OF TAIWAN, SEAS NEAR MALAYSIA AND GULF OF THAILAND. SEA FOG/REDUCED VISIBILITY VISIBILITY DOWN TO 4000 M IN SQ SH AND TS. VISIBILITY DOWN TO 4000 M IN MIST PATCHES OR SOME HAZE OVER THE ECS, TAIWAN STRAIT AND SEAS NEAR KWANGTUNG. ============================ HIGH SEAS FORECAST NORTHERN AUSTRALIA ============================ FQAU21 AMMC 182015 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 18 APRIL 2026 PART 1 WARNINGS NIL. PART 2 SITUATION AT 181800 UTC TROUGH NEAR 08S134E 08S129E 11S122E. FORECAST NEAR 06S118E 08S121E 08S125E AT 200000UTC. PART 3 FORECAST WHOLE AREA: WINDS NOT EXCEEDING 20 KNOTS. SLIGHT TO MODERATE SEAS. LOW SWELL. RAIN AREAS, SCATTERED SHOWERS AND ISOLATED THUNDERSTORMS THROUGHOUT THE 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 08:15 UTC SUNDAY.= ============================ HIGH SEAS FORECAST CHINA ============================ WWCI50 BABJ 181200 2:1:31:11:01:00 BT SECURITE = MESSAGE FOR METAREA XI (CHINA) ISSUED BY NMC BEIJING AT 1530UTC APR.18 2026 = MESSAGE IS UPDATED EVERY 06 HOURS = SYNOPSIS VALID 1200UTC APR.18 = FCST VALID 1200UTC APR.19 = WARNNING= NIL= SUMMARY= NE WINDS FROM 10 TO 12M/S GUSTS 14M/S SEAS UP TO 1.5M OVER SOUTHERN PART OF YELLOW SEA= CYCLONIC WINDS FROM 10 TO 12M/S GUSTS 14M/S SEAS UP TO 1.5M OVER NORTHERN PART OF EAST CHINA SEA= DENSE FOG OBSERVED LOCALLY OVER CENTRAL PART OF YELLOW SEA WITH HORIZONTAL VISIBILITY LESS THAN 1KM= HORIZONTAL VISIBILITY LESS THAN 10KM OVER BOHAI SEA AND NORTHERN PART OF YELLOW SEA AND WESTERN PART OF EAST CHINA SEA AND TAIWAN STRAIT AND BASHI CHANNEL AND QIONGZHOU STRAIT AND BEIBU GULF AND KOREA STRAIT AND ANDAMAN SEA AND THAILAND GULF AND MALACCA STRAIT AND SEA EAST OF SINGAPORE AND SEA SOUTH OF SUMATERA AND LAUT JAWA AND SEA SOUTH OF JAWA AND MAKASSAR STRAIT AND SEA SOUTHWEST OF THE PHILIPPINES AND LAUT MALUKU AND LAUT BANDA= FCST= BOHAI SEA S WINDS 06 TO 08M/S GUSTS 08 TO 12M/S VEER N WINDS 06 TO 08M/S GUSTS 08 TO 12M/S SEA STATE CALM TO SMOOTH FOG VIS POOR= NORTHERN PART OF YELLOW SEA S WINDS 04 TO 06M/S GUSTS 06 TO 08M/S SEA STATE CALM HEAVY FOG VIS VERY POOR= CENTRAL PART OF YELLOW SEA NE WINDS VEER SE 02 TO 04M/S GUSTS 04 TO 06M/S SEA STATE SMOOTH TO CALM HEAVY FOG VIS VERY POOR= NORTHERN PART OF EAST CHINA SEA E WINDS 08 TO 12M/S GUSTS 12 TO 16M/S BACK NW WINDS 08 TO 12M/S GUSTS 12 TO 16M/S SEA STATE SMOOTH HEAVY FOG VIS POOR= SOUTHWESTERN PART OF JAPAN SEA SE WINDS 04 TO 06M/S GUSTS 06 TO 08M/S VEER S WINDS 04 TO 06M/S GUSTS 06 TO 08M/S SEA STATE SMOOTH TO CALM SUNNY VIS POOR TO VERY POOR=