WWJP74 RJTD 050600 IMPORTANT WARNING FOR OTARU NAVTEX AREA 050600UTC ISSUED AT 050900UTC DEVELOPING LOW 1004HPA AT 36N 144E MOV ENE 20 KT WARNING(NEAR GALE) SEA OFF SOUTHERN COAST OF MARITIME PROVINCE, SEA OFF AKITA, SEA OFF SADO, SEA OFF NOTO WARNING(ICING) SEA WEST OF SAKHALIN, SOYA KAIKYO, SEA WEST OF HOKKAIDO, SEA OFF HIYAMA AND TSUGARU, SEA OFF SOUTHERN COAST OF MARITIME PROVINCE, SEA OFF AKITA NXT WARNING WILL BE ISSUED BEFORE 051500UTC =