823   
WTNT25 KNHC 210845  
TCMAT5  
   
HURRICANE ERIN FORECAST/ADVISORY NUMBER  40  
NWS NATIONAL HURRICANE CENTER MIAMI FL       AL052025  
0900 UTC THU AUG 21 2025  
   
HURRICANE CENTER LOCATED NEAR 34.2N  72.1W AT 21/0900Z  
POSITION ACCURATE WITHIN  20 NM  
   
PRESENT MOVEMENT TOWARD THE NORTH-NORTHEAST OR  20 DEGREES AT  15 KT  
   
ESTIMATED MINIMUM CENTRAL PRESSURE  945 MB  
MAX SUSTAINED WINDS  90 KT WITH GUSTS TO 110 KT.  
64 KT....... 80NE  90SE  70SW  60NW.  
50 KT.......140NE 160SE 100SW  90NW.  
34 KT.......220NE 280SE 200SW 200NW.  
4 M SEAS....480NE 420SE 360SW 300NW.  
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 34.2N  72.1W AT 21/0900Z  
AT 21/0600Z CENTER WAS LOCATED NEAR 33.6N  72.6W  
   
FORECAST VALID 21/1800Z 35.8N  70.3W  
MAX WIND  90 KT...GUSTS 110 KT.  
64 KT... 80NE  90SE  70SW  70NW.  
50 KT...150NE 170SE 110SW 110NW.  
34 KT...250NE 320SE 230SW 260NW.  
   
FORECAST VALID 22/0600Z 37.8N  66.7W  
MAX WIND  85 KT...GUSTS 105 KT.  
64 KT... 70NE  90SE  90SW  80NW.  
50 KT...160NE 170SE 140SW 120NW.  
34 KT...300NE 330SE 250SW 270NW.  
   
FORECAST VALID 22/1800Z 39.6N  62.1W  
MAX WIND  85 KT...GUSTS 105 KT.  
64 KT... 70NE 110SE 100SW  90NW.  
50 KT...160NE 180SE 150SW 130NW.  
34 KT...330NE 350SE 260SW 270NW.  
   
FORECAST VALID 23/0600Z 41.4N  56.2W  
MAX WIND  75 KT...GUSTS  90 KT.  
64 KT... 40NE  90SE  90SW  80NW.  
50 KT...150NE 190SE 160SW 130NW.  
34 KT...330NE 350SE 270SW 260NW.  
   
FORECAST VALID 23/1800Z 43.6N  48.7W...POST-TROP/EXTRATROP  
MAX WIND  65 KT...GUSTS  80 KT.  
64 KT...  0NE  70SE  90SW  70NW.  
50 KT... 60NE 180SE 170SW 110NW.  
34 KT...300NE 350SE 320SW 240NW.  
   
FORECAST VALID 24/0600Z 46.7N  40.2W...POST-TROP/EXTRATROP  
MAX WIND  60 KT...GUSTS  75 KT.  
50 KT... 30NE 140SE 180SW  80NW.  
34 KT...290NE 420SE 410SW 210NW.  
   
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 25/0600Z 53.0N  26.7W...POST-TROP/EXTRATROP  
MAX WIND  55 KT...GUSTS  65 KT.  
50 KT... 70NE 160SE 140SW  80NW.  
34 KT...220NE 380SE 450SW 350NW.  
   
OUTLOOK VALID 26/0600Z 56.8N  21.7W...POST-TROP/EXTRATROP  
MAX WIND  45 KT...GUSTS  55 KT.  
34 KT...200NE 340SE 480SW 280NW.  
   
REQUEST FOR 3 HOURLY SHIP REPORTS WITHIN 300 MILES OF 34.2N  72.1W  
   
INTERMEDIATE PUBLIC ADVISORY...WTNT35 KNHC/MIATCPAT5...AT 21/1200Z  
   
NEXT ADVISORY AT 21/1500Z  
   
  
FORECASTER BERG  
   
   
 
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