389  
WTNT24 KNHC 062033  
TCMAT4  
 
TROPICAL STORM DEXTER FORECAST/ADVISORY NUMBER 12  
NWS NATIONAL HURRICANE CENTER MIAMI FL AL042025  
2100 UTC WED AUG 06 2025  
 
TROPICAL STORM CENTER LOCATED NEAR 40.0N 56.3W AT 06/2100Z  
POSITION ACCURATE WITHIN 30 NM  
 
PRESENT MOVEMENT TOWARD THE EAST-NORTHEAST OR 75 DEGREES AT 14 KT  
 
ESTIMATED MINIMUM CENTRAL PRESSURE 999 MB  
MAX SUSTAINED WINDS 45 KT WITH GUSTS TO 55 KT.  
34 KT.......150NE 90SE 60SW 100NW.  
4 M SEAS.... 60NE 90SE 60SW 90NW.  
WINDS AND SEAS VARY GREATLY IN EACH QUADRANT. RADII IN NAUTICAL  
MILES ARE THE LARGEST RADII EXPECTED ANYWHERE IN THAT QUADRANT.  
 
REPEAT...CENTER LOCATED NEAR 40.0N 56.3W AT 06/2100Z  
AT 06/1800Z CENTER WAS LOCATED NEAR 39.9N 57.2W  
 
FORECAST VALID 07/0600Z 40.6N 53.5W  
MAX WIND 50 KT...GUSTS 60 KT.  
50 KT... 0NE 0SE 0SW 40NW.  
34 KT...130NE 110SE 70SW 90NW.  
 
FORECAST VALID 07/1800Z 41.9N 49.3W...POST-TROP/EXTRATROP  
MAX WIND 60 KT...GUSTS 75 KT.  
50 KT... 0NE 0SE 40SW 50NW.  
34 KT...140NE 130SE 90SW 110NW.  
 
FORECAST VALID 08/0600Z 43.5N 45.3W...POST-TROP/EXTRATROP  
MAX WIND 65 KT...GUSTS 80 KT.  
64 KT... 0NE 0SE 30SW 0NW.  
50 KT... 40NE 0SE 50SW 50NW.  
34 KT...140NE 150SE 120SW 130NW.  
 
FORECAST VALID 08/1800Z 44.8N 41.5W...POST-TROP/EXTRATROP  
MAX WIND 50 KT...GUSTS 60 KT.  
50 KT... 0NE 40SE 30SW 0NW.  
34 KT... 80NE 130SE 130SW 110NW.  
 
FORECAST VALID 09/0600Z 45.5N 37.1W...POST-TROP/EXTRATROP  
MAX WIND 40 KT...GUSTS 50 KT.  
34 KT... 0NE 100SE 100SW 70NW.  
 
FORECAST VALID 09/1800Z 46.0N 32.5W...POST-TROP/EXTRATROP  
MAX WIND 35 KT...GUSTS 45 KT.  
34 KT... 0NE 70SE 70SW 0NW.  
 
EXTENDED OUTLOOK. NOTE...ERRORS FOR TRACK HAVE AVERAGED NEAR 125 NM  
ON DAY 4 AND 175 NM ON DAY 5...AND FOR INTENSITY NEAR 15 KT EACH DAY  
 
OUTLOOK VALID 10/1800Z 47.0N 24.5W...POST-TROP/EXTRATROP  
MAX WIND 30 KT...GUSTS 40 KT.  
 
OUTLOOK VALID 11/1800Z...DISSIPATED  
 
REQUEST FOR 3 HOURLY SHIP REPORTS WITHIN 300 MILES OF 40.0N 56.3W  
 
NEXT ADVISORY AT 07/0300Z  
 

 
FORECASTER PAPIN  
 
 
 
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