858  
WTNT32 KNHC 130248  
TCPAT2  
 
BULLETIN  
HURRICANE OPHELIA ADVISORY NUMBER 16  
NWS NATIONAL HURRICANE CENTER MIAMI FL AL172017  
1100 PM AST THU OCT 12 2017  
 
...SMALL BUT POWERFUL OPHELIA WITH 105-MPH WINDS OVER THE EASTERN  
ATLANTIC...  
 
SUMMARY OF 1100 PM AST...0300 UTC...INFORMATION  
-----------------------------------------------  
LOCATION...30.7N 34.7W  
ABOUT 670 MI...1075 KM SW OF THE AZORES  
MAXIMUM SUSTAINED WINDS...105 MPH...165 KM/H  
PRESENT MOVEMENT...ENE OR 60 DEGREES AT 7 MPH...11 KM/H  
MINIMUM CENTRAL PRESSURE...970 MB...28.65 INCHES  
 
WATCHES AND WARNINGS  
--------------------  
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.  
 
DISCUSSION AND 48-HOUR OUTLOOK  
------------------------------  
AT 1100 PM AST (0300 UTC), THE EYE OF HURRICANE OPHELIA WAS LOCATED  
NEAR LATITUDE 30.7 NORTH, LONGITUDE 34.7 WEST. OPHELIA IS MOVING  
TOWARD THE EAST-NORTHEAST NEAR 7 MPH (11 KM/H), AND THIS GENERAL  
MOTION IS EXPECTED TO CONTINUE FOR THE NEXT COUPLE OF DAYS WITH A  
LARGE INCREASE IN FORWARD SPEED.  
 
MAXIMUM SUSTAINED WINDS HAVE INCREASED TO NEAR 105 MPH (165 KM/H)  
WITH HIGHER GUSTS. SOME SLOW WEAKENING IS FORECAST TO BEGIN FRIDAY  
NIGHT BUT OPHELIA SHOULD REMAIN A HURRICANE FOR THE NEXT COUPLE OF  
DAYS.  
 
HURRICANE-FORCE WINDS EXTEND OUTWARD UP TO 25 MILES (35 KM) FROM THE  
CENTER AND TROPICAL-STORM-FORCE WINDS EXTEND OUTWARD UP TO 90 MILES  
(150 KM).  
 
THE ESTIMATED MINIMUM CENTRAL PRESSURE IS 970 MB (28.65 INCHES).  
 
HAZARDS AFFECTING LAND  
----------------------  
RAINFALL: OPHELIA IS EXPECTED TO PRODUCE TOTAL RAIN ACCUMULATIONS  
OF 2 TO 4 INCHES OVER THE SOUTHEASTERN AZORES SATURDAY AND SATURDAY  
NIGHT. DURING THE SAME TIME, A COLD FRONT AND MOISTURE ASSOCIATED  
WITH OPHELIA IS EXPECTED TO PRODUCE TOTAL RAIN ACCUMULATIONS OF 1 TO  
3 INCHES OVER THE OTHER ISLANDS OF THE AZORES. THIS RAINFALL COULD  
PRODUCE FLOODING, ESPECIALLY OVER THE SOUTHEASTERN AZORES.  
 
NEXT ADVISORY  
-------------  
NEXT COMPLETE ADVISORY AT 500 AM AST.  
 

 
FORECASTER BLAKE  
 
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