WWJP83 RJTD 130000 VITAL WARNING FOR YOKOHAMA NAVTEX AREA 130000UTC ISSUED AT 130300UTC DEVELOPING LOW 994HPA AT 40N 136E MOV ENE 40 KT FCST POSITION FOR 131200UTC AT 45N 145E WITH UNCERTANITY OF 65 MILES RADIUS FCST POSITION FOR 140000UTC AT 48N 148E WITH UNCERTANITY OF 80 MILES RADIUS W-FRONT FM 40N 136E TO 40N 140E 40N 144E C-FRONT FM 40N 136E TO 39N 135E 37N 134E 34N 132E 31N 128E STORM WARNING EASTERN SEA OFF SANRIKU, WESTERN SEA OFF SANRIKU WITH MAX WINDS 50 KT GALE WARNING NORTHERN SEA OFF KANTO WITH 45 KT SOUTHERN SEA OFF KANTO, EASTERN SEA OFF TOKAI, SOUTHERN SEA OFF TOKAI, NORTHERN SEA OFF SHIKOKU WITH 40 KT WESTERN SEA OFF TOKAI WITH 35 KT WARNING(NEAR GALE) SOUTHERN SEA OFF SHIKOKU NXT WARNING WILL BE ISSUED BEFORE 130900UTC =