WWJP81 RJTD 011800 VITAL WARNING FOR NAHA NAVTEX AREA 011800UTC ISSUED AT 012100UTC DEVELOPING LOW 1000HPA AT 31N 140E MOV NE 40 KT FCST POSITION FOR 020600UTC AT 36N 145E WITH UNCERTANITY OF 65 MILES RADIUS FCST POSITION FOR 021800UTC AT 40N 148E WITH UNCERTANITY OF 80 MILES RADIUS C-FRONT FM 31N 140E TO 28N 138E 27N 136E 25N 133E 23N 132E 21N 129E 19N 126E GALE WARNING SOUTHERN SEA OFF SHIKOKU WITH MAX WINDS 35 KT WARNING(NEAR GALE) NORTHERN SEA OFF SHIKOKU WARNING(DENSE FOG) SEA WEST OF NAGASAKI, SEA OFF KAGOSHIMA POOR VIS 0.3 MILES OR LESS IN PLACES NXT WARNING WILL BE ISSUED BEFORE 020300UTC =