570  
WTNT22 KNHC 130849  
TCMAT2  
 
HURRICANE OPHELIA FORECAST/ADVISORY NUMBER 17  
NWS NATIONAL HURRICANE CENTER MIAMI FL AL172017  
0900 UTC FRI OCT 13 2017  
 
THERE ARE NO COASTAL WATCHES OR WARNINGS IN EFFECT.  
 
INTERESTS IN THE AZORES SHOULD REFER TO PRODUCTS ISSUED BY THE  
AZORES WEATHER FORECAST AND WATCH CENTER.  
 
HURRICANE CENTER LOCATED NEAR 31.1N 33.9W AT 13/0900Z  
POSITION ACCURATE WITHIN 10 NM  
 
PRESENT MOVEMENT TOWARD THE EAST-NORTHEAST OR 70 DEGREES AT 7 KT  
 
ESTIMATED MINIMUM CENTRAL PRESSURE 970 MB  
EYE DIAMETER 10 NM  
MAX SUSTAINED WINDS 90 KT WITH GUSTS TO 110 KT.  
64 KT....... 15NE 20SE 20SW 15NW.  
50 KT....... 30NE 40SE 30SW 20NW.  
34 KT....... 70NE 80SE 60SW 60NW.  
12 FT SEAS..240NE 180SE 120SW 180NW.  
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 31.1N 33.9W AT 13/0900Z  
AT 13/0600Z CENTER WAS LOCATED NEAR 30.9N 34.4W  
 
FORECAST VALID 13/1800Z 31.8N 32.5W  
MAX WIND 85 KT...GUSTS 105 KT.  
64 KT... 20NE 25SE 20SW 15NW.  
50 KT... 30NE 40SE 30SW 30NW.  
34 KT... 80NE 90SE 70SW 60NW.  
 
FORECAST VALID 14/0600Z 33.1N 29.7W  
MAX WIND 85 KT...GUSTS 105 KT.  
64 KT... 20NE 30SE 25SW 15NW.  
50 KT... 40NE 50SE 40SW 30NW.  
34 KT... 90NE 100SE 100SW 80NW.  
 
FORECAST VALID 14/1800Z 35.0N 25.5W  
MAX WIND 80 KT...GUSTS 100 KT.  
64 KT... 25NE 35SE 30SW 0NW.  
50 KT... 50NE 60SE 50SW 30NW.  
34 KT...100NE 120SE 150SW 170NW.  
 
FORECAST VALID 15/0600Z 37.9N 20.8W  
MAX WIND 80 KT...GUSTS 100 KT.  
50 KT... 70NE 80SE 70SW 50NW.  
34 KT...140NE 150SE 200SW 240NW.  
 
FORECAST VALID 16/0600Z 47.9N 13.7W...POST-TROP/EXTRATROP  
MAX WIND 75 KT...GUSTS 90 KT.  
50 KT...100NE 130SE 110SW 90NW.  
34 KT...270NE 270SE 270SW 240NW.  
 
EXTENDED OUTLOOK. NOTE...ERRORS FOR TRACK HAVE AVERAGED NEAR 150 NM  
ON DAY 4 AND 200 NM ON DAY 5...AND FOR INTENSITY NEAR 15 KT EACH DAY  
 
OUTLOOK VALID 17/0600Z 57.5N 6.0W...POST-TROP/EXTRATROP  
MAX WIND 50 KT...GUSTS 60 KT.  
 
OUTLOOK VALID 18/0600Z...EAST OF THE PRIME MERIDIAN  
 
REQUEST FOR 3 HOURLY SHIP REPORTS WITHIN 300 MILES OF 31.1N 33.9W  
 
NEXT ADVISORY AT 13/1500Z  
 

 
FORECASTER BERG  
 
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