URNT12 KNHC 221803 DETAILED VORTEX DATA MESSAGE A. 22/1803Z B. 11 DEG 36 MIN N 77 DEG 54 MIN W C. NA D. 45 KT E. 340 DEG 16 NM F. 084 DEG 50 KT G. 326 DEG 08 NM H. EXTRAP 1002 MB I. 23 C/ 388 M J. 26 C/ 378 M K. 23 C/ NA L. NA M. NA N. 11 DEG 36 MIN N 77 DEG 54 MIN W 22/1803Z O. 12345/1 P. 0.1/ 1 NM Q. AF866 0213A CYCLONE OB 12 KNHC DETAILED MAX FL WIND 50 KT N QUAD 1800Z. SLP EXTRAP FROM 1500FT. VERY TIGHT WIND CENTER AT SURFACE, NO DISCERNABLE EYE.;