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BULLETIN
HURRICANE FLOYD ADVISORY NUMBER  12
NATIONAL WEATHER SERVICE MIAMI FL
11 AM AST FRI SEP 10 1999
 
...HURRICANE FLOYD PASSING NORTH OF THE LEEWARD ISLANDS...

...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.
 
ALL INTERESTS IN THE NORTHEASTERN CARIBBEAN SHOULD MONITOR THE
PROGRESS OF FLOYD.
 
AT 11 AM AST...1500Z...THE CENTER OF HURRICANE FLOYD
WAS LOCATED NEAR LATITUDE 19.3 NORTH...LONGITUDE  59.2 WEST
OR ABOUT 200 MILES...325 KM...EAST-NORTHEAST OF BARBUDA IN THE
NORTHERN LEEWARD ISLANDS.
 
FLOYD IS MOVING TOWARD THE WEST NORTHWEST NEAR 10 MPH...
17 KM/HR...AND THIS GENERAL MOTION IS EXPECTED TO CONTINUE TODAY.
ON THIS TRACK...THE CENTER OF FLOYD WOULD PASS NORTH OF THE LEEWARD
ISLANDS.  HOWEVER...A DEVIATION TO THE LEFT COULD BRING TROPICAL
STORM CONDITIONS TO THE NORTHERNMOST ISLANDS OF THE NORTHEASTERN
CARIBBEAN.
 
MAXIMUM SUSTAINED WINDS ARE NEAR  80 MPH...130 KM/HR...WITH HIGHER
GUSTS.  SOME ADDITIONAL STRENGTHENING 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.
 
AN AIR FORCE HURRICANE HUNTER AIRPLANE REPORTED A MINIMUM CENTRAL
PRESSURE OF  989 MB...29.21 INCHES.
 
REPEATING THE 11 AM AST POSITION...19.3 N... 59.2 W.  MOVEMENT
TOWARD...WEST NORTHWEST NEAR 10 MPH.  MAXIMUM SUSTAINED
WINDS... 80 MPH.  MINIMUM CENTRAL PRESSURE... 989 MB.
 
AN INTERMEDIATE ADVISORY WILL BE ISSUED BY THE NATIONAL
HURRICANE CENTER AT 2 PM AST FOLLOWED BY THE NEXT
COMPLETE ADVISORY AT 5 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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