WWJP83 RJTD 081800 VITAL WARNING FOR YOKOHAMA NAVTEX AREA 081800UTC ISSUED AT 082100UTC DEVELOPING LOW 986HPA AT 37N 157E MOV ENE 35 KT FCST POSITION FOR 090600UTC AT 40N 165E WITH UNCERTANITY OF 65 MILES RADIUS FCST POSITION FOR 091800UTC AT 47N 175E WITH UNCERTANITY OF 80 MILES RADIUS GALE WARNING NORTHERN SEA OFF KANTO, SOUTHERN SEA OFF KANTO, EASTERN SEA OFF TOKAI, SOUTHERN SEA OFF TOKAI WITH MAX WINDS 45 KT EASTERN SEA OFF SANRIKU, WESTERN SEA OFF SANRIKU, NORTHERN SEA OFF SHIKOKU, SOUTHERN SEA OFF SHIKOKU WITH 40 KT WARNING(NEAR GALE) WESTERN SEA OFF TOKAI NXT WARNING WILL BE ISSUED BEFORE 090300UTC =