URNT12 KMIA 281748                                                
AF984 0411A GRACE OB 08 KMIA                                      
DETAILED VORTEX DATA MESSAGE                                      
A. 28/1725Z                                                       
B. 32 DEG 31 MIN N                                                
   68 DEG 00 MIN W                                                
C. 850 MB 1261 M                                                  
D. 45 KT                                                          
E. 270 DEG 50 NM                                                  
F. 020 DEG 57 KT                                                  
G. 270 DEG 35 NM                                                  
H. EXTRAP 984 MB                                                  
I. 14 C/ 1550 M                                                   
J. 14 C/ 1550 M                                                   
K. 13 C/ NOBS                                                     
L. CLOSED WALL                                                    
M. C25                                                            
N. 32 DEG 31 MIN N                                                
   68 DEG 00 MIN W                                                
   28/1725Z                                                       
O. 1234 /08                                                       
P. 5 /3 NM                                                        
Q. MAX FL WND 57KT WEST QUAD 1718Z.                               
   SLP EXTRAPOLATED FROM 850MB;