445  
WTNT41 KNHC 211434  
TCDAT1  
 
POST-TROPICAL CYCLONE ARLENE DISCUSSION NUMBER 9  
NWS NATIONAL HURRICANE CENTER MIAMI FL AL012017  
1100 AM AST FRI APR 21 2017  
 
ARLENE HAS BECOME EMBEDDED WITHIN THE CIRCULATION OF A LARGE  
EXTRATROPICAL CYCLONE, AND LOST MOST OF ITS DEEP CONVECTION WHILE  
SURROUNDED BY COLD AIR. THE POST-TROPICAL CYCLONE WILL MOVE TOWARD  
THE SOUTHWEST AND SOUTH AT ABOUT 20 KT UNTIL DISSIPATION LATER  
TODAY.  
 
THIS IS THE LAST ADVISORY ON ARLENE. ADDITIONAL INFORMATION ON THIS  
SYSTEM CAN BE FOUND IN HIGH SEAS FORECASTS ISSUED BY THE NATIONAL  
WEATHER SERVICE...UNDER AWIPS HEADER NFDHSFAT1 AND WMO HEADER FZNT01  
KWBC.  
 
FORECAST POSITIONS AND MAX WINDS  
 
INIT 21/1500Z 39.3N 49.9W 45 KT 50 MPH...POST-TROPICAL  
12H 22/0000Z 37.5N 51.5W 40 KT 45 MPH...POST-TROP/EXTRATROP  
24H 22/1200Z...DISSIPATED  
 

 
FORECASTER AVILA  
 
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