308  
WTNT32 KNHC 122036  
TCPAT2  
 
BULLETIN  
HURRICANE OPHELIA ADVISORY NUMBER 15  
NWS NATIONAL HURRICANE CENTER MIAMI FL AL172017  
500 PM AST THU OCT 12 2017  
   
..OPHELIA BARELY MOVING BUT CONTINUES TO STRENGTHEN
 
 
SUMMARY OF 500 PM AST...2100 UTC...INFORMATION  
----------------------------------------------  
LOCATION...30.4N 35.5W  
ABOUT 715 MI...1150 KM SW OF THE AZORES  
MAXIMUM SUSTAINED WINDS...100 MPH...155 KM/H  
PRESENT MOVEMENT...STATIONARY  
MINIMUM CENTRAL PRESSURE...973 MB...28.74 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 500 PM AST (2100 UTC), THE EYE OF HURRICANE OPHELIA WAS LOCATED  
NEAR LATITUDE 30.4 NORTH, LONGITUDE 35.5 WEST. OPHELIA IS CURRENTLY  
MEANDERING, BUT A EAST-NORTHEAST MOTION IS EXPECTED TO BEGIN  
TONIGHT. A EAST-NORTHEAST MOTION IS FORECAST TO CONTINUE AFTER THAT  
WITH A SUBSTANTIAL INCREASE IN FORWARD SPEED BY THIS WEEKEND. ON  
THE FORECAST TRACK, THE CENTER OF OPHELIA WILL REMAIN SOUTH OF THE  
AZORES THROUGH SATURDAY.  
 
MAXIMUM SUSTAINED WINDS HAVE INCREASED TO NEAR 100 MPH (155 KM/H)  
WITH HIGHER GUSTS. SOME WEAKENING IS FORECAST DURING THE NEXT 48  
HOURS, BUT OPHELIA IS EXPECTED TO 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 80 MILES  
(130 KM).  
 
THE ESTIMATED MINIMUM CENTRAL PRESSURE IS 973 MB (28.74 INCHES).  
 
HAZARDS AFFECTING LAND  
----------------------  
RAINFALL: OPHELIA IS EXPECTED TO PRODUCE TOTAL RAIN ACCUMULATIONS  
OF 2 TO 4 INCHES OVER SANTA MARIA ISLAND OF THE 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 SANTA MARIA  
ISLAND.  
 
NEXT ADVISORY  
-------------  
NEXT COMPLETE ADVISORY AT 1100 PM AST.  
 

 
FORECASTER ZELINSKY  
 
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