998  
WTNT22 KNHC 131435  
TCMAT2  
 
HURRICANE OPHELIA FORECAST/ADVISORY NUMBER 18  
NWS NATIONAL HURRICANE CENTER MIAMI FL AL172017  
1500 UTC FRI OCT 13 2017  
 
THERE ARE NO COASTAL TROPICAL CYCLONE WATCHES OR WARNINGS IN EFFECT.  
 
INTERESTS IN THE AZORES SHOULD REFER TO PRODUCTS ISSUED BY THE  
AZORES WEATHER FORECAST AND WATCH CENTER.  
 
INTERESTS IN IRELAND SHOULD MONITOR PRODUCTS ISSUED BY MET EIREANN  
AND INTERESTS IN THE UNITED KINGDOM SHOULD MONITOR PRODUCTS ISSUED  
BY THE UK MET OFFICE.  
 
HURRICANE CENTER LOCATED NEAR 31.8N 32.9W AT 13/1500Z  
POSITION ACCURATE WITHIN 15 NM  
 
PRESENT MOVEMENT TOWARD THE EAST-NORTHEAST OR 60 DEGREES AT 10 KT  
 
ESTIMATED MINIMUM CENTRAL PRESSURE 971 MB  
EYE DIAMETER 10 NM  
MAX SUSTAINED WINDS 85 KT WITH GUSTS TO 105 KT.  
64 KT....... 15NE 20SE 20SW 15NW.  
50 KT....... 30NE 40SE 30SW 20NW.  
34 KT....... 70NE 80SE 70SW 60NW.  
12 FT SEAS..180NE 150SE 150SW 120NW.  
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 31.8N 32.9W AT 13/1500Z  
AT 13/1200Z CENTER WAS LOCATED NEAR 31.4N 33.3W  
 
FORECAST VALID 14/0000Z 32.6N 30.9W  
MAX WIND 85 KT...GUSTS 105 KT.  
64 KT... 20NE 25SE 20SW 15NW.  
50 KT... 30NE 40SE 30SW 20NW.  
34 KT... 80NE 90SE 70SW 70NW.  
 
FORECAST VALID 14/1200Z 34.1N 27.3W  
MAX WIND 85 KT...GUSTS 105 KT.  
64 KT... 20NE 30SE 25SW 15NW.  
50 KT... 40NE 50SE 40SW 30NW.  
34 KT... 90NE 100SE 110SW 120NW.  
 
FORECAST VALID 15/0000Z 36.5N 22.6W  
MAX WIND 80 KT...GUSTS 100 KT.  
64 KT... 30NE 40SE 30SW 15NW.  
50 KT... 60NE 70SE 50SW 40NW.  
34 KT...100NE 120SE 160SW 200NW.  
 
FORECAST VALID 15/1200Z 40.7N 17.9W  
MAX WIND 80 KT...GUSTS 100 KT.  
50 KT... 80NE 90SE 80SW 70NW.  
34 KT...170NE 180SE 210SW 240NW.  
 
FORECAST VALID 16/1200Z 51.0N 11.5W...POST-TROP/EXTRATROP  
MAX WIND 70 KT...GUSTS 85 KT.  
50 KT...100NE 140SE 110SW 60NW.  
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 17/1200Z 60.0N 4.0W...POST-TROP/EXTRATROP  
MAX WIND 50 KT...GUSTS 60 KT.  
 
OUTLOOK VALID 18/1200Z...DISSIPATED  
 
REQUEST FOR 3 HOURLY SHIP REPORTS WITHIN 300 MILES OF 31.8N 32.9W  
 
NEXT ADVISORY AT 13/2100Z  
 

 
FORECASTER BRENNAN  
 
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