URNT12 KNHC 241221 DETAILED VORTEX DATA MESSAGE A. 24/1208Z B. 21 DEG 16 MIN N 77 DEG 05 MIN W C. 850 MB 1337 M D. 45 KT E. 340 DEG 39 NM F. 070 DEG 44 KT G. 345 DEG 40 NM H. EXTRAP 990 MB I. 18 C/1495 M J. 20 C/1495 M K. 18 C/NA L. OPEN N M. C65 N. 21 DEG 16 MIN N 77 DEG 5 MIN W 24/1208Z O. 12345/8 P. 1/2 NM Q. NOAA2 1607A GEORGES OB 11 KNHC. DETAILED VORTEX MAX FL WIND 78 KT E QUAD 24/1047Z SLP EXTRAP FROM 850 MB CORRECTED DUE TO ELEVATION;