000 URNT12 KNHC 181636 VORTEX DATA MESSAGE AL042007 A. 18/16:14:30Z B. 15 deg 46 min N 069 deg 02 min W C. 700 mb 2488 m D. 119 kt E. 018 deg 8 nm F. 113 deg 128 kt G. 018 deg 008 nm H. 930 mb I. 9 C/ 3050 m J. 20 C/ 3046 m K. 11 C/ NA L. OPEN S M. C11 N. 12345/7 O. 0.02 / 2 nm P. AF304 0604A DEAN OB 21 MAX FL WIND 128 KT N QUAD 16:12:00 Z NORTH EYEWALL HAS DOUBLE EYEWALL STRUCTURE