URNT12 KMIA 180758                                                
AF980 0416A NANA OB 07 KMIA                                       
DETAILED VORTEX DATA MESSAGE                                      
A. 18/0747Z                                                       
B. 24 DEG 18 MIN N                                                
   63 DEG 42 MIN W                                                
C. 850 MB 1344 M                                                  
D. NOBS                                                           
E. NOBS                                                           
F. 262 DEG 64 KT                                                  
G. 180 DEG 02 NM                                                  
H. EXTRAP 992 MB                                                  
I. 19 C/ 1494 M                                                   
J. 23 C/ 1486 M                                                   
K. 14 C/ NOBS                                                     
L. OPEN NE-SE                                                     
M. E04/17/10                                                      
N. 24 DEG 18 MIN W                                                
   63 DEG 42 MIN W                                                
   18/0747Z                                                       
O. 12345/8                                                        
P. 2 /1 NM                                                        
Q. MAX FL WIND 83KTS, E QUAD 18/0600Z,                            
   SLP EXTRAPOLATED FROM 850MB;