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HURRICANE FLOYD ADVISORY NUMBER  18
NATIONAL WEATHER SERVICE MIAMI FL
11 PM AST SAT SEP 11 1999

...HURRICANE FLOYD...A POTENTIAL THREAT TO THE UNITED STATES EAST
COAST...
 
INTERESTS IN THE BAHAMAS AND THE SOUTHEAST U.S. SHOULD MONITOR THE
PROGRESS OF THIS HURRICANE.
  
AT 11 PM AST...0300Z...THE CENTER OF HURRICANE FLOYD WAS LOCATED
NEAR LATITUDE 22.7 NORTH...LONGITUDE  64.5 WEST OR ABOUT 310 MILES
...500 KM...NORTH NORTHEAST OF SAN JUAN PUERTO RICO.
 
FLOYD IS MOVING TOWARD THE WEST NORTHWEST NEAR 12 MPH ...19 KM/HR...
AND THIS MOTION IS EXPECTED TO CONTINUE DURING THE NEXT 24 HOURS.
 
MAXIMUM SUSTAINED WINDS ARE NEAR 110 MPH...175 KM/HR...WITH HIGHER
GUSTS.  SOME FLUCTUATIONS IN INTENSITY ARE LIKELY DURING THE NEXT 24
HOURS.
 
HURRICANE FORCE WINDS EXTEND OUTWARD UP TO 105 MILES...165 KM...
FROM THE CENTER...AND TROPICAL STORM FORCE WINDS EXTEND OUTWARD UP
TO 175 MILES...280 KM.
 
ESTIMATED MINIMUM CENTRAL PRESSURE IS  967 MB...28.56 INCHES.
 
REPEATING THE 11 PM AST POSITION...22.7 N... 64.5 W.  MOVEMENT
TOWARD...WEST NORTHWEST NEAR 12 MPH.  MAXIMUM SUSTAINED WINDS...110
MPH.  MINIMUM CENTRAL PRESSURE... 967 MB. 
 
THE NEXT ADVISORY WILL BE ISSUED BY THE NATIONAL HURRICANE CENTER AT
5 AM AST...SUNDAY.
 
AVILA
 
STRIKE PROBABILITIES ASSOCIATED WITH THIS ADVISORY NUMBER CAN BE
FOUND UNDER AFOS HEADER MIASPFAT3 AND WMO HEADER WTNT73 KNHC.
 
 
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