490  
WTNT23 KNHC 050832  
TCMAT3  
 
POST-TROPICAL CYCLONE SAM FORECAST/ADVISORY NUMBER 51  
NWS NATIONAL HURRICANE CENTER MIAMI FL AL182021  
0900 UTC TUE OCT 05 2021  
 
THERE ARE NO COASTAL WATCHES OR WARNINGS IN EFFECT.  
 
POST-TROPICAL CYCLONE CENTER LOCATED NEAR 51.0N 39.4W AT 05/0900Z  
POSITION ACCURATE WITHIN 25 NM  
 
PRESENT MOVEMENT TOWARD THE NORTH OR 10 DEGREES AT 20 KT  
 
ESTIMATED MINIMUM CENTRAL PRESSURE 970 MB  
MAX SUSTAINED WINDS 70 KT WITH GUSTS TO 85 KT.  
64 KT....... 0NE 70SE 70SW 0NW.  
50 KT.......120NE 150SE 150SW 60NW.  
34 KT.......240NE 270SE 400SW 300NW.  
12 FT SEAS..240NE 420SE 780SW 390NW.  
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 51.0N 39.4W AT 05/0900Z  
AT 05/0600Z CENTER WAS LOCATED NEAR 50.0N 39.5W  
 
FORECAST VALID 05/1800Z 52.1N 38.9W...POST-TROP/EXTRATROP  
MAX WIND 65 KT...GUSTS 80 KT.  
64 KT... 60NE 60SE 50SW 0NW.  
50 KT...100NE 110SE 110SW 100NW.  
34 KT...300NE 340SE 480SW 330NW.  
 
FORECAST VALID 06/0600Z 52.8N 35.1W...POST-TROP/EXTRATROP  
MAX WIND 60 KT...GUSTS 75 KT.  
50 KT...110NE 150SE 150SW 70NW.  
34 KT...300NE 450SE 480SW 300NW.  
 
FORECAST VALID 06/1800Z 54.3N 30.0W...POST-TROP/EXTRATROP  
MAX WIND 55 KT...GUSTS 65 KT.  
50 KT... 0NE 100SE 100SW 0NW.  
34 KT...240NE 300SE 270SW 180NW.  
 
FORECAST VALID 07/0600Z 57.9N 24.6W...POST-TROP/EXTRATROP  
MAX WIND 50 KT...GUSTS 60 KT.  
50 KT... 0NE 0SE 90SW 50NW.  
34 KT...200NE 230SE 190SW 150NW.  
 
FORECAST VALID 07/1800Z 61.8N 23.9W...POST-TROP/EXTRATROP  
MAX WIND 45 KT...GUSTS 55 KT.  
34 KT...400NE 280SE 270SW 420NW.  
 
FORECAST VALID 08/0600Z 62.7N 27.4W...POST-TROP/EXTRATROP  
MAX WIND 45 KT...GUSTS 55 KT.  
34 KT...330NE 280SE 390SW 420NW.  
 
EXTENDED OUTLOOK. NOTE...ERRORS FOR TRACK HAVE AVERAGED NEAR 150 NM  
ON DAY 4 AND 175 NM ON DAY 5...AND FOR INTENSITY NEAR 15 KT EACH DAY  
 
OUTLOOK VALID 09/0600Z 61.7N 26.2W...POST-TROP/EXTRATROP  
MAX WIND 40 KT...GUSTS 50 KT.  
 
OUTLOOK VALID 10/0600Z 63.6N 15.0W...POST-TROP/EXTRATROP  
MAX WIND 40 KT...GUSTS 50 KT.  
 
REQUEST FOR 3 HOURLY SHIP REPORTS WITHIN 300 MILES OF 51.0N 39.4W  
 
THIS IS THE LAST FORECAST/ADVISORY ISSUED BY THE NATIONAL HURRICANE  
CENTER ON SAM. 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.  
 

 
FORECASTER STEWART  
 
 
 
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