WWJP81 RJTD 260600 VITAL WARNING FOR NAHA NAVTEX AREA 260600UTC ISSUED AT 260900UTC PRESSURE GRADIENT IS STEEP GALE WARNING NORTHERN SEA OFF SHIKOKU, SOUTHERN SEA OFF SHIKOKU WITH MAX WINDS 35 KT WARNING(NEAR GALE) SEA WEST OF NAGASAKI, SEA SOUTHWEST OF MESHIMA, SEA OFF KAGOSHIMA, SEA AROUND AMAMI, SEA SOUTH OF OKINAWA NXT WARNING WILL BE ISSUED BEFORE 261500UTC =