WWJP83 RJTD 210000 VITAL WARNING FOR YOKOHAMA NAVTEX AREA 210000UTC ISSUED AT 210300UTC DEVELOPING LOW 1002HPA AT 33N 145E MOV ENE 25 KT FCST POSITION FOR 211200UTC AT 35N 151E WITH UNCERTANITY OF 50 MILES RADIUS FCST POSITION FOR 220000UTC AT 37N 156E WITH UNCERTANITY OF 80 MILES RADIUS W-FRONT FM 33N 145E TO 33N 146E 33N 148E 32N 150E C-FRONT FM 33N 145E TO 31N 144E 29N 142E 28N 140E DEVELOPING LOW 1016HPA AT 40N 131E MOV EAST 15 KT GALE WARNING NORTHERN SEA OFF KANTO, SOUTHERN SEA OFF KANTO WITH MAX WINDS 45 KT WARNING(NEAR GALE) EASTERN SEA OFF SANRIKU NXT WARNING WILL BE ISSUED BEFORE 210900UTC =