WWJP25 RJTD 271200 WARNING AND SUMMARY 271200. WARNING VALID 281200. WARNING IS UPDATED EVERY 6 HOURS. STORM WARNING. DEVELOPING LOW 982 HPA AT 48N 160E SEA EAST OF KURILS MOVING EASTNORTHEAST 15 KNOTS. OCCLUDED FRONT FROM 48N 160E TO 50N 160E 49N 163E 48N 166E. WARM FRONT FROM 48N 166E TO 44N 170E 41N 172E. COLD FRONT FROM 48N 166E TO 44N 166E 39N 164E. WINDS 30 TO 50 KNOTS WITHIN 1400 MILES OF LOW SOUTH SEMICIRCLE AND 600 MILES ELSEWHERE. FORECAST POSITION FOR 280000UTC AT 50N 163E WITH UNCERTAINTY OF 50 MILES RADIUS. FORECAST POSITION FOR 281200UTC AT 55N 170E WITH UNCERTAINTY OF 85 MILES RADIUS. ANOTHER LOW 1006 HPA AT 34N 159E MOVING EASTNORTHEAST 35 KNOTS. GALE WARNING. EASTERLY TO NORTHEASTERLY WINDS 30 TO 40 KNOTS PREVAILING OVER WATERS BOUNDED BY 35N 145E 29N 155E 23N 146E 23N 139E 27N 124E 36N 129E 35N 145E. GALE WARNING. EXPECTED WESTERLY TO SOUTHWESTERLY WINDS 30 TO 35 KNOTS PREVAILING OVER NORTHERN PART OF SEA OF JAPAN FOR NEXT 6 HOURS. WARNING. DENSE FOG OBSERVED LOCALLY OVER BOHAI YELLOW SEA EAST CHINA SEA NORTHERN PART OF SOUTH CHINA SEA. WARNING. DENSE FOG OBSERVED LOCALLY OVER WATERS BOUNDED BY 43N 163E 49N 160E 58N 170E 53N 180E 28N 180E 23N 150E 27N 145E 43N 163E. SUMMARY. LOW 1012 HPA AT 27N 127E EAST SLOWLY. LOW 1004 HPA AT 53N 128E EAST 25 KT. HIGH 1034 HPA AT 39N 139E SE 25 KT. WARM FRONT FROM 53N 128E TO 50N 132E 46N 133E. COLD FRONT FROM 53N 128E TO 47N 127E 44N 120E 42N 113E. WARM FRONT FROM 34N 159E TO 36N 161E 39N 164E. COLD FRONT FROM 34N 159E TO 30N 156E 27N 153E. STATIONARY FRONT FROM 27N 153E TO 24N 146E 23N 140E. REMARKS. JMA WILL DISCONTINUE ITS PROVISION OF WWJP25 AND WWJP26 BY THE YEAR 2020 IN FAVOR OF WWJP27 AND WWJP28, WHICH ARE IMPROVED VERSIONS OF THE TWO COMMUNICATIONS, RESPECTIVELY. JAPAN METEOROLOGICAL AGENCY.=