Bulletinset for METAREA 11 Edition date (UTC): 2026-03-20 14:22:46 ============================ HIGH SEAS FORECAST HONG KONG CHINA ============================ WWHK82 VHHH 201200 40:1:31:11:01:00 HONG KONG METEOROLOGICAL SERVICE PROVIDES THE FOLLOWING WARNING/INFORMATION FOR THE SOUTH CHINA SEA. WARNINGS NIL. SYNOPSIS (201200UTC) AND 24-HOUR FORECAST LOW VISIBILITY CONDITIONS ARE AFFECTING SEAS NEAR KWANGTUNG AND GULF OF TONKIN. SIGNIFICANT SWELL/HIGH SEAS NIL. THUNDERSTORMS/SEVERE WEATHER ISOLATED SQUALLY (SQ) SHOWERS (SH) AND THUNDERSTORMS (TS) OVER STRAIT OF MALACCA AND SEAS SOUTH OF THE PHILIPPINES. SEA FOG/REDUCED VISIBILITY VISIBILITY DOWN TO 2000 M IN MIST OR LIGHT RAIN PATCHES OVER SEAS NEAR KWANGTUNG AND GULF OF TONKIN. VISIBILITY DOWN TO 4000 M IN SQ SH AND TS. ============================ HIGH SEAS FORECAST CHINA ============================ WWCI50 BABJ 200600 2:1:31:11:01:00 BT SECURITE = MESSAGE FOR METAREA XI (CHINA) ISSUED BY NMC BEIJING AT 1015UTC MAR.20 2026 = MESSAGE IS UPDATED EVERY 06 HOURS = SYNOPSIS VALID 0600UTC MAR.20 = FCST VALID 0600UTC MAR.21 = WARNNING= NIL= SUMMARY= NW/NLY WINDS FROM 10 TO 14M/S GUSTS 18M/S SEAS UP TO 2.0M OVER TAIWAN STRAIT AND JAPAN SEA= HORIZONTAL VISIBILITY LESS THAN 10KM OVER CENTRAL PART OF YELLOW SEA AND SOUTHERN PART OF YELLOW SEA AND SOUTHWESTERN PART OF EAST CHINA SEA AND ANDAMAN SEA AND THAILAND GULF AND MALACCA STRAIT AND SEA EAST OF SINGAPORE AND LAUT JAWA AND SEA SOUTH OF JAWA AND LAUT MALUKU AND LAUT BANDA= FCST= TAIWAN STRAIT NE WINDS 08 TO 12M/S GUSTS 12 TO 16M/S SEA STATE MODERATE OVERCAST BECMG CLOUDY VIS GOOD= NORTHEASTERN PART OF JAPAN SEA NW WINDS 16 TO 20M/S GUSTS 20 TO 24M/S DECR 12 TO 16M/S GUSTS 16 TO 20M/S SEA STATE MODERATE SLEET BECMG OVERCAST VIS MODERATE TO GOOD= SOUTHWESTERN PART OF JAPAN SEA NW WINDS 12 TO 16M/S GUSTS 16 TO 20M/S BACK S WINDS 12 TO 16M/S GUSTS 16 TO 20M/S SEA STATE SLIGHT TO SMOOTH OVERCAST VIS GOOD= SEA SOUTH OF JAPAN NW WINDS 08 TO 12M/S GUSTS 12 TO 16M/S SEA STATE SLIGHT LIGHT RAIN VIS GOOD= SEA SOUTHEAST OF INDONESIA W WINDS 06 TO 08M/S GUSTS 08 TO 12M/S INCR 08 TO 12M/S GUSTS 12 TO 16M/S SEA STATE SLIGHT LIGHT RAIN BECMG MODERATE RAIN VIS MODERATE= ============================ HIGH SEAS FORECAST JAPAN ============================ WWJP90 RJTD 200600 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 200600. WARNING VALID 210600. WARNING IS UPDATED EVERY 6 HOURS. GALE WARNING. DEVELOPING LOW 1002 HPA AT 43N 138E SEA OF JAPAN MOVING NE 15 KNOTS. WARM FRONT FROM 43N 138E TO 42N 140E 40N 141E. COLD FRONT FROM 43N 138E TO 41N 137E 39N 135E 38N 133E. WINDS 30 TO 40 KNOTS WITHIN 500 MILES OF LOW SOUTHWEST SEMICIRCLE AND 200 MILES ELSEWHERE. EXPECTED WINDS 30 TO 45 KNOTS WITHIN 700 MILES OF LOW SOUTHEAST SEMICIRCLE AND 300 MILES ELSEWHERE WITHIN NEXT 6 HOURS. GALE WARNING. EASTERLY TO SOUTHEASTERLY WINDS 30 TO 35 KNOTS EXPECTED WINDS 30 TO 35 KNOTS FOR NEXT 24 HOURS PREVAILING OVER WATERS BOUNDED BY 52N 161E 56N 163E 60N 163E 60N 167E 51N 180E 37N 180E 42N 175E 47N 170E 52N 161E. WARNING. DENSE FOG OBSERVED LOCALLY OVER SEA OF OKHOTSK BOHAI YELLOW SEA NORTHERN PART OF SOUTH CHINA SEA. WARNING. DENSE FOG OBSERVED LOCALLY OVER WATERS BOUNDED BY 44N 147E 47N 152E 57N 163E 51N 175E 48N 180E 42N 180E 37N 170E 36N 159E 41N 162E 45N 162E 43N 153E 44N 147E. SUMMARY. LOW 1010 HPA AT 34N 141E EAST 10 KT. LOW 1000 HPA AT 54N 146E NW 20 KT. LOW 1002 HPA AT 40N 160E ENE 20 KT. LOW 1002 HPA AT 46N 167E ENE 15 KT. LOW 1012 HPA AT 39N 178E NE 10 KT. HIGH 1022 HPA AT 34N 123E EAST SLOWLY. HIGH 1014 HPA AT 38N 145E EAST 15 KT. HIGH 1020 HPA AT 29N 162E EAST 15 KT. OCCLUDED FRONT FROM 40N 160E TO 41N 162E 41N 163E. WARM FRONT FROM 41N 163E TO 39N 166E 36N 167E. COLD FRONT FROM 41N 163E TO 39N 162E 35N 158E 34N 151E. STATIONARY FRONT FROM 34N 151E TO 33N 149E 33N 147E 31N 143E 29N 139E 28N 136E 27N 132E 24N 127E. HONG KONG METEOROLOGICAL SERVICE PROVIDES THE FOLLOWING WARNING/INFORMATION FOR THE SOUTH CHINA SEA. WARNINGS NIL. SYNOPSIS (200600UTC) AND 24-HOUR FORECAST LOW VISIBILITY CONDITIONS ARE AFFECTING SEAS NEAR KWANGTUNG AND GULF OF TONKIN. SIGNIFICANT SWELL/HIGH SEAS NIL. THUNDERSTORMS/SEVERE WEATHER ISOLATED SQUALLY (SQ) SHOWERS (SH) AND THUNDERSTORMS (TS) OVER GULF OF THAILAND, STRAIT OF MALACCA AND SEAS SOUTH OF THE PHILIPPINES. SEA FOG/REDUCED VISIBILITY VISIBILITY DOWN TO 2000 M IN MIST OR LIGHT RAIN PATCHES OVER SEAS NEAR KWANGTUNG AND GULF OF TONKIN. VISIBILITY DOWN TO 4000 M IN SQ SH AND TS. JAPAN METEOROLOGICAL AGENCY.= ============================ HIGH SEAS FORECAST NORTHERN AUSTRALIA ============================ FQAU21 AMMC 200715 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 20 MARCH 2026 PART 1 WARNINGS REFER TO LATEST WARNINGS FOR BOUNDARY OF AFFECTED AREA AND TYPE OF WEATHER SYSTEM. HURRICANE FORCE WIND WARNING ISSUED BY TCWC MELBOURNE FOR SEVERE TROPICAL CYCLONE "NARELLE" PART 2 SITUATION AT 200600 UTC TROPICAL CYCLONE "NARELLE" 984HPA NEAR 13.4S142.2E. FORECAST SEVERE TROPICAL CYCLONE "NARELLE" 969HPA NEAR 13.5S137.1E AT 211200UTC. LOW 1010HPA NEAR 11S097E. FORECAST 1009HPA NEAR 11S095E AT 211200UTC. PART 3 FORECAST REFER TO LATEST WARNINGS FOR DETAILS OF THE AREA AFFECTED. WITHIN 300NM OF SEVERE TROPICAL CYCLONE "NARELLE", OUTSIDE WARNING AREA: CLOCKWISE WINDS 20/33 KNOTS. MODERATE TO ROUGH SEAS. LOW TO MODERATE SWELL. EAST OF LINE 04S128E 12S128E: WESTERLY QUARTER WINDS 20/30 KNOTS. MODERATE TO ROUGH SEAS. LOW SWELL. REMAINDER: WINDS NOT EXCEEDING 20 KNOTS. SLIGHT TO MODERATE SEAS. LOW SWELL. RAIN AREAS, SCATTERED SHOWERS AND ISOLATED THUNDERSTORMS THROUGHOUT MOST OF AREA, HEAVY WITHIN 120NM OF SEVERE TROPICAL CYCLONE "NARELLE". 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 19:15 UTC FRIDAY.=