WWJP83 RJTD 180000 VITAL WARNING FOR YOKOHAMA NAVTEX AREA 180000UTC ISSUED AT 180300UTC DEVELOPING LOW 1006HPA AT 39N 142E MOV ENE 40 KT STNR FRONT FM 40N 154E TO 40N 150E 39N 145E 39N 142E 36N 135E 35N 131E 31N 125E 30N 121E GALE WARNING EASTERN SEA OFF SANRIKU, WESTERN SEA OFF SANRIKU WITH MAX WINDS 35 KT WARNING(NEAR GALE) NORTHERN SEA OFF KANTO, SOUTHERN SEA OFF KANTO, EASTERN SEA OFF TOKAI WARNING(DENSE FOG) WESTERN SEA OFF SANRIKU, NORTHERN SEA OFF KANTO POOR VIS 0.3 MILES OR LESS IN PLACES NXT WARNING WILL BE ISSUED BEFORE 180900UTC =