060  
WTNT22 KNHC 120237  
TCMAT2  
 
HURRICANE OPHELIA FORECAST/ADVISORY NUMBER 12  
NWS NATIONAL HURRICANE CENTER MIAMI FL AL172017  
0300 UTC THU OCT 12 2017  
 
THERE ARE NO COASTAL WATCHES OR WARNINGS IN EFFECT.  
 
INTERESTS IN THE EASTERN AZORES SHOULD MONITOR THE PROGRESS OF  
OPHELIA.  
 
HURRICANE CENTER LOCATED NEAR 30.0N 35.7W AT 12/0300Z  
POSITION ACCURATE WITHIN 15 NM  
 
PRESENT MOVEMENT TOWARD THE NORTHEAST OR 40 DEGREES AT 3 KT  
 
ESTIMATED MINIMUM CENTRAL PRESSURE 986 MB  
EYE DIAMETER 15 NM  
MAX SUSTAINED WINDS 75 KT WITH GUSTS TO 90 KT.  
64 KT....... 15NE 20SE 20SW 15NW.  
50 KT....... 25NE 30SE 25SW 20NW.  
34 KT....... 50NE 60SE 50SW 50NW.  
12 FT SEAS.. 90NE 90SE 90SW 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 30.0N 35.7W AT 12/0300Z  
AT 12/0000Z CENTER WAS LOCATED NEAR 29.9N 35.8W  
 
FORECAST VALID 12/1200Z 30.4N 35.3W  
MAX WIND 80 KT...GUSTS 100 KT.  
64 KT... 20NE 25SE 20SW 20NW.  
50 KT... 30NE 40SE 30SW 30NW.  
34 KT... 60NE 60SE 60SW 60NW.  
 
FORECAST VALID 13/0000Z 30.9N 34.6W  
MAX WIND 80 KT...GUSTS 100 KT.  
64 KT... 20NE 30SE 25SW 20NW.  
50 KT... 40NE 50SE 40SW 30NW.  
34 KT... 60NE 80SE 70SW 60NW.  
 
FORECAST VALID 13/1200Z 31.7N 32.9W  
MAX WIND 75 KT...GUSTS 90 KT.  
64 KT... 20NE 25SE 15SW 0NW.  
50 KT... 40NE 50SE 40SW 30NW.  
34 KT... 70NE 110SE 80SW 60NW.  
 
FORECAST VALID 14/0000Z 32.8N 30.2W  
MAX WIND 75 KT...GUSTS 90 KT.  
50 KT... 40NE 50SE 40SW 30NW.  
34 KT... 80NE 120SE 90SW 60NW.  
 
FORECAST VALID 15/0000Z 37.0N 22.0W  
MAX WIND 75 KT...GUSTS 90 KT.  
50 KT... 40NE 50SE 40SW 30NW.  
34 KT...120NE 160SE 180SW 200NW.  
 
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 16/0000Z 46.0N 14.0W...POST-TROP/EXTRATROP  
MAX WIND 70 KT...GUSTS 85 KT.  
 
OUTLOOK VALID 17/0000Z 56.5N 8.5W...POST-TROP/EXTRATROP  
MAX WIND 55 KT...GUSTS 65 KT.  
 
REQUEST FOR 3 HOURLY SHIP REPORTS WITHIN 300 MILES OF 30.0N 35.7W  
 
NEXT ADVISORY AT 12/0900Z  
 

 
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