WWJP73 RJTD 051800 IMPORTANT WARNING FOR YOKOHAMA NAVTEX AREA 051800UTC ISSUED AT 052100UTC DEVELOPING LOW 1000HPA AT 40N 125E MOV ENE 20 KT W-FRONT FM 41N 128E TO 41N 131E 40N 136E WARNING(NEAR GALE) EASTERN SEA OFF SANRIKU, WESTERN SEA OFF SANRIKU, NORTHERN SEA OFF KANTO, EASTERN SEA OFF TOKAI, WESTERN SEA OFF TOKAI, SOUTHERN SEA OFF TOKAI, NORTHERN SEA OFF SHIKOKU WARNING(DENSE FOG) EASTERN SEA OFF SANRIKU, WESTERN SEA OFF SANRIKU POOR VIS 0.3 MILES OR LESS IN PLACES NXT WARNING WILL BE ISSUED BEFORE 060300UTC =