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BULLETIN
HURRICANE FLOYD ADVISORY NUMBER  13
NATIONAL WEATHER SERVICE MIAMI FL
5 PM AST FRI SEP 10 1999
 
...A TROPICAL STORM WATCH IS IN EFFECT FOR THE FOLLOWING CARIBBEAN
ISLANDS...ANTIGUA...BARBUDA...ANGUILLA...AND DUTCH SAINT MAARTEN...
FRENCH SAINT MARTIN AND SAINT BARTHELEMY.
 
INTERESTS IN THE BAHAMAS AND THE SOUTHEAST U.S. SHOULD MONITOR THE
PROGRESS OF THIS HURRICANE OVER THE WEEKEND.
 
AT 5 PM AST...2100Z...THE CENTER OF HURRICANE FLOYD WAS LOCATED NEAR
LATITUDE 20.5 NORTH...LONGITUDE  60.0 WEST OR ABOUT 415 MILES...670
KM...EAST-NORTHEAST OF SAN JUAN PUERTO RICO.
 
FLOYD IS MOVING TOWARD THE NORTHWEST NEAR 12 MPH...19 KM/HR...AND
THIS MOTION GENERAL MOTION IS EXPECTED TO CONTINUE TONIGHT WITH A
GRADUAL TURN BACK TO THE WEST-NORTHWEST BY LATE TOMORROW.  ALTHOUGH
THE CENTER OF FLOYD IS PASSING WELL TO THE NORTH OF THE LEEWARD
ISLANDS...RAINBANDS ON THE SOUTHEAST SIDE OF FLOYD MAY STILL BRING
SOME SQUALLY WEATHER TO THESE ISLANDS TONIGHT.
 
MAXIMUM SUSTAINED WINDS ARE NEAR  80 MPH...130 KM/HR...WITH HIGHER
GUSTS.  FLOYD IS BECOMING BETTER ORGANIZED...AND SOME INCREASE IN
STRENGTH IS EXPECTED DURING THE NEXT 24 HOURS.
 
HURRICANE FORCE WINDS EXTEND OUTWARD UP TO  70 MILES...110 KM...
FROM THE CENTER...AND TROPICAL STORM FORCE WINDS EXTEND OUTWARD UP
TO 175 MILES...280 KM.
 
THE ESTIMATED MINIMUM CENTRAL PRESSURE IS  975 MB...28.79 INCHES.
 
REPEATING THE 5 PM AST POSITION...20.5 N... 60.0 W.  MOVEMENT
TOWARD...NORTHWEST NEAR 12 MPH.  MAXIMUM SUSTAINED
WINDS... 80 MPH.  MINIMUM CENTRAL PRESSURE... 975 MB.
 
AN INTERMEDIATE ADVISORY WILL BE ISSUED BY THE NATIONAL
HURRICANE CENTER AT 8 PM AST FOLLOWED BY THE NEXT
COMPLETE ADVISORY AT 11 PM AST.
 
FRANKLIN
 
STRIKE PROBABILITIES ASSOCIATED WITH THIS ADVISORY NUMBER CAN BE
FOUND UNDER AFOS HEADER MIASPFAT3 AND WMO HEADER WTNT73 KNHC.
 
 
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