WWJP90 RJTD 041200 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 041200. WARNING VALID 051200. WARNING IS UPDATED EVERY 6 HOURS. GALE WARNING. WESTERLY TO NORTHWESTERLY WINDS 30 TO 35 KNOTS EXPECTED WINDS 30 TO 40 KNOTS WITHIN NEXT 12 HOURS PREVAILING OVER WATERS BOUNDED BY 42N 150E 60N 163E 60N 180E 31N 180E 41N 157E 42N 150E. 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 36N 141E 42N 142E 42N 156E 32N 156E 29N 151E 30N 143E 34N 136E 36N 141E. GALE WARNING. NEW LOW FORECAST POSITION FOR 051200UTC AT 39N 143E WITH UNCERTAINTY OF 80 MILES RADIUS MOVING NE 20 KNOTS. EXPECTED WINDS 30 TO 35 KNOTS WITHIN 400 MILES OF LOW EAST SEMICIRCLE AND 200 MILES ELSEWHERE WITHIN NEXT 24 HOURS. WARNING. DENSE FOG OBSERVED LOCALLY OVER SEA OF OKHOTSK NORTHERN PART OF JAPAN SEA MIDDLE OF JAPAN SEA. WARNING. DENSE FOG OBSERVED LOCALLY OVER WATERS BOUNDED BY 38N 142E 41N 142E 44N 147E 49N 154E 47N 157E 41N 154E 39N 148E 38N 142E. WARNING. LIGHT ICE ACCRETION OVER SEA OF OKHOTSK JAPAN SEA. SUMMARY. LOW 1014 HPA AT 33N 122E ENE 15 KT. LOW 1004 HPA AT 58N 150E EAST SLOWLY. HIGH 1032 HPA AT 37N 153E EAST 25 KT. COLD FRONT FROM 35N 180E TO 34N 176E 32N 173E 32N 169E 31N 166E. STATIONARY FRONT FROM 31N 166E TO 29N 160E 29N 151E. STATIONARY FRONT FROM 25N 109E TO 26N 112E 27N 115E 30N 120E 33N 122E 32N 125E 32N 127E. STATIONARY FRONT FROM 31N 135E TO 33N 138E 35N 140E 35N 144E. REMARKS. TYPHOON 2631 IN-FA (2631) 970 HPA AT 25.8N 138.6E : SEE TROPICAL CYCLONE WARNING. 24 HOUR FORECAST. SEA OF OKHOTSK WIND W 30KT SEAS 3 M. JAPAN SEA WIND W 30KT SEAS 3 M. BOHAI AND YELLOW SEA WIND N 30KT SEAS 3 M. EAST CHINA SEA WIND SW 30KT SEAS 3 M. SOUTH CHINA SEA AND GULF OF TONGKING WIND NE 25KT SEAS 2 M. SEA AROUND KURILS WIND W 30KT SEAS 3 M. SEA EAST OF KURILS WIND W 40KT SEAS 4 M WITH MODERATE SWELL. SEA EAST OF JAPAN WIND SE 60KT SEAS 10 M WITH HEAVY SWELL. FAR OFF EAST OF JAPAN WIND W 35KT SEAS 5 M WITH MODERATE SWELL. SEA SOUTH OF JAPAN WIND SW 65KT SEAS 9 M WITH HEAVY SWELL. SEA SOUTH OF OKINAWA WIND NW 20KT SEAS 2 M. CHICHIJIMA WIND SW 60KT SEAS 10 M WITH HEAVY SWELL. MINAMITORISHIMA WIND E 30KT SEAS 3 M WITH MODERATE SWELL. SEA EAST OF PHILIPPINES WIND E 15KT SEAS 2 M. SEA EAST OF MINDANAO AND CELEBES SEA AND SULU SEA WIND NE 20KT SEAS 1 M. MARIANAS WIND E 15KT SEAS 2 M. TRUK AND CAROLINES WIND NE 15KT SEAS 2 M. WAKE WIND NE 30KT SEAS 3 M WITH MODERATE SWELL. MARSHALLS WIND NE 20KT SEAS 3 M WITH MODERATE SWELL. MIDWAY WIND NE 25KT SEAS 4 M WITH HEAVY SWELL. SEA SOUTH OF ALEUTIANS WIND NW 40KT SEAS 6 M WITH HEAVY SWELL. BERING SEA AND SEA AROUND ALEUTIANS AND SEA EAST OF KAMCHATKA WIND W 40KT SEAS 5 M WITH MODERATE SWELL. HONG KONG METEOROLOGICAL SERVICE PROVIDES THE FOLLOWING WARNING/INFORMATION FOR THE SOUTH CHINA SEA. WARNINGS NIL. SYNOPSIS (041200UTC) AND 24-HOUR FORECAST UNSETTLED WEATHER IS AFFECTING SOUTHERN PART OF THE SOUTH CHINA SEA (SCS), SEAS NEAR MALAYSIA AND GULF OF THAILAND. BESIDES, LOW VISIBILITY CONDITIONS ARE AFFECTING THE EAST CHINA SEA (ECS). SIGNIFICANT SWELL/HIGH SEAS NIL. THUNDERSTORMS/SEVERE WEATHER SCATTERED SQUALLY (SQ) SHOWERS (SH) AND THUNDERSTORMS (TS) OVER SOUTHERN PART OF THE SCS, SEAS NEAR MALAYSIA AND GULF OF THAILAND. ISOLATED SQ SH AND TS OVER SEAS NEAR SOUTHERN PART OF THE PHILIPPINES. SEA FOG/REDUCED VISIBILITY VISIBILITY DOWN TO 2000 M IN SQ SH AND TS. VISIBILITY DOWN TO 2000 M IN MIST OR RAIN PATCHES OVER THE ECS. JAPAN METEOROLOGICAL AGENCY.=