409  
WTNT45 KNHC 190249  
TCDAT5  
 
REMNANTS OF DON DISCUSSION NUMBER 6  
NWS NATIONAL HURRICANE CENTER MIAMI FL AL052017  
1100 PM AST TUE JUL 18 2017  
 
AN AIR FORCE RESERVE RECONNAISSANCE AIRCRAFT MADE SEVERAL PASSES  
THROUGH THE SYSTEM THIS EVENING AND WAS ONLY ABLE TO FIND A SHARP  
WIND SHIFT--BUT NO WINDS WITH A WESTERLY COMPONENT. PRESSURES HAVE  
ALSO RISEN, AND IT APPEARS THAT DON NO LONGER HAS A CENTER OF  
CIRCULATION. THEREFORE, DON IS BEING DECLARED AN OPEN WAVE, AND  
THIS IS THE LAST ADVISORY ON THIS SYSTEM. BASED ON THE AIRCRAFT  
DATA, THE WAVE IS STILL PRODUCING MAXIMUM WINDS OF 35 KT WEST OF  
THE WINDWARD ISLANDS OVER THE FAR SOUTHEASTERN CARIBBEAN SEA.  
 
THE WAVE IS MOVING WESTWARD AT ABOUT 22 KT, AND IT SHOULD CONTINUE  
MOVING QUICKLY WESTWARD ACROSS THE CARIBBEAN SEA DURING THE NEXT  
COUPLE OF DAYS. DUE TO THE SYSTEM'S FAST MOTION, AS WELL AS  
UNFAVORABLE ATMOSPHERIC CONDITIONS OVER THE CARIBBEAN SEA,  
REGENERATION INTO A TROPICAL CYCLONE IS NOT EXPECTED AT THIS TIME.  
HOWEVER, THE WAVE IS EXPECTED TO CONTINUE PRODUCING GALES THROUGH  
EARLY WEDNESDAY, AND THEN WINDS JUST BELOW GALE FORCE FOR THE NEXT  
COUPLE OF DAYS.  
 
THIS IS THE LAST ADVISORY ON DON, AND ADDITIONAL INFORMATION ON THIS  
SYSTEM CAN BE FOUND IN HIGH SEAS FORECASTS ISSUED BY THE NATIONAL  
WEATHER SERVICE, UNDER AWIPS HEADER NFDHSFAT1, WMO HEADER FZNT01  
KWBC, AND AVAILABLE ON THE WEB AT  
HTTP://WWW.OPC.NCEP.NOAA.GOV/SHTML/NFDHSFAT1.SHTML.  
 
FORECAST POSITIONS AND MAX WINDS  
 
INIT 19/0300Z 11.9N 62.5W 35 KT 40 MPH...REMNANTS OF DON  
12H 19/1200Z...DISSIPATED  
 

 
FORECASTER BERG  
 
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