WWJP81 RJTD 161200 VITAL WARNING FOR NAHA NAVTEX AREA 161200UTC ISSUED AT 161500UTC PRESSURE GRADIENT IS STEEP GALE WARNING SOUTHERN PART OF EAST CHINA SEA WITH MAX WINDS 35 KT WARNING(NEAR GALE) NORTHERN SEA OFF SHIKOKU, SEA WEST OF NAGASAKI, SEA SOUTHWEST OF MESHIMA, HYUGA NADA, SEA OFF KAGOSHIMA, SEA AROUND AMAMI, SEA EAST OF OKINAWA, SEA SOUTH OF OKINAWA NXT WARNING WILL BE ISSUED BEFORE 162100UTC =