WWJP84 RJTD 161200 VITAL WARNING FOR OTARU NAVTEX AREA 161200UTC ISSUED AT 161500UTC DEVELOPING LOW 1008HPA AT 46N 138E MOV ENE 25 KT FCST POSITION FOR 170000UTC AT 49N 144E WITH UNCERTANITY OF 50 MILES RADIUS FCST POSITION FOR 171200UTC AT 49N 146E WITH UNCERTANITY OF 80 MILES RADIUS W-FRONT FM 46N 138E TO 45N 143E 43N 146E C-FRONT FM 46N 138E TO 43N 135E 41N 130E 38N 128E 36N 124E STORM WARNING SEA WEST OF SAKHALIN WITH MAX WINDS 50 KT GALE WARNING SOYA KAIKYO, SEA WEST OF HOKKAIDO WITH 45 KT SEA OFF HIYAMA AND TSUGARU, SEA OFF AKITA WITH 40 KT TSUGARU KAIKYO, SEA OFF SOUTHERN COAST OF MARITIME PROVINCE, SEA OFF SADO, SEA OFF NOTO WITH 35 KT WARNING(DENSE FOG) SEA WEST OF SAKHALIN, SOYA KAIKYO, SEA WEST OF HOKKAIDO, SEA OFF HIYAMA AND TSUGARU, SEA OFF SOUTHERN COAST OF MARITIME PROVINCE POOR VIS 0.3 MILES OR LESS IN PLACES NXT WARNING WILL BE ISSUED BEFORE 162100UTC =