SXKA80 PTKK 160600 OMRTKK SURF OBSERVATIONS NATIONAL WEATHER SERVICE CHUUK FM 4PM LST THUR APR 16, 2026 STATIONS AVERAGE GREATEST PERIOD DIRECTION PIIS ISLAND NIL= NAMA ISLAND NIL= TA ISLAND NIL= ETTAL ISLAND NIL= ONOUN ISLAND NIL= NAMOLUK ISLAND 3 FT 4 FT 11 SEC NORTH=