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HURRICANE FLOYD INTERMEDIATE ADVISORY NUMBER  24A
NATIONAL WEATHER SERVICE MIAMI FL
2 PM AST MON SEP 13 1999

...FLOYD STILL ON A WESTWARD TRACK... 

A HURRICANE WARNING CONTINUES IN EFFECT FOR THE THE NORTHWEST
BAHAMAS...INCLUDING THE ABACO ISLANDS...ANDROS ISLAND...BERRY
ISLANDS...BIMINI...ELEUTHERA...GRAND BAHAMA AND NEW PROVIDENCE
ISLAND...AND FOR THE CENTRAL BAHAMAS ...INCLUDING CAT ISLAND...
EXUMAS ISLANDS...LONG ISLAND...RUM CAY...AND SAN SALVADOR ISLAND.
 
A TROPICAL STORM WARNING IS IN EFFECT FOR THE TURKS AND CAICOS
ISLANDS AND THE SOUTHEASTERN BAHAMAS.
 
A HURRICANE WATCH CONTINUES IN EFFECT FOR THE ENTIRE FLORIDA
MAINLAND EAST COAST FROM FLORIDA CITY NORTHWARD TO JUST SOUTH OF
BRUNSWICK GEORGIA...INCLUDING LAKE OKEECHOBEE.
 
INTERESTS IN THE FLORIDA KEYS SHOULD CLOSELY MONITOR THE PROGRESS OF
THIS DANGEROUS HURRICANE.
 
AT 2 PM AST...1800Z...THE CENTER OF HURRICANE FLOYD WAS LOCATED
NEAR LATITUDE 24.2 NORTH...LONGITUDE  73.0 WEST OR ABOUT 90 MILES
...145 KM...EAST OF SAN SALVADOR IN THE CENTRAL BAHAMAS.  THIS
POSITION IS ALSO ABOUT 470 MILES...750 KM...EAST-SOUTHEAST OF MIAMI
FLORIDA.
 
FLOYD IS MOVING TOWARD THE WEST NEAR 15 MPH...24 KM/HR.  A GRADUAL
TURN TOWARD THE WEST-NORTHWEST IS EXPECTED TONIGHT FOLLOWED BY A
TURN TOWARD THE NORTHWEST ON TUESDAY. 
 
MAXIMUM SUSTAINED WINDS ARE NEAR 155 MPH...250 KM/HR...WITH HIGHER
GUSTS.  LITTLE CHANGE IN STRENGTH IS FORECAST DURING THE NEXT
24 HOURS.  FLOYD IS A DANGEROUS CATEGORY 4 HURRICANE ON THE
SAFFIR/SIMPSON SCALE.
 
HURRICANE FORCE WINDS EXTEND OUTWARD UP TO 105 MILES...165 KM...
FROM THE CENTER...AND TROPICAL STORM FORCE WINDS EXTEND OUTWARD UP
TO 290 MILES...465 KM.
 
THE LATEST MINIMUM CENTRAL PRESSURE REPORTED BY THE AIR FORCE
HURRICANE HUNTER AIRCRAFT IS 926 MB...27.34 INCHES.
 
STORM SURGE FLOODING OF 15 TO 20 FEET ABOVE NORMAL TIDE LEVELS...
ACCOMPANIED BY LARGE AND DANGEROUS BATTERING WAVES ARE POSSIBLE
IN THE HURRICANE WARNING AREA.
 
RAINBANDS FROM FLOYD ARE PRODUCING LOCALLY HEAVY RAINS OVER THE
SOUTHEASTERN BAHAMAS AND PORTIONS OF PUERTO RICO AND THE VIRGIN
ISLANDS.
  
REPEATING THE 2 PM AST POSITION...24.2 N... 73.0 W.  MOVEMENT
TOWARD...WEST NEAR 15 MPH.  MAXIMUM SUSTAINED WINDS...155 MPH. 
MINIMUM CENTRAL PRESSURE... 926 MB.
 
THE NEXT ADVISORY WILL BE ISSUED BY THE NATIONAL HURRICANE CENTER AT
5 PM AST.
 
AVILA  

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