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HURRICANE FLOYD INTERMEDIATE ADVISORY NUMBER  22A
NATIONAL WEATHER SERVICE MIAMI FL
2 AM AST MON SEP 13 1999

...EXTREMELY DANGEROUS HURRICANE FLOYD HEADING TOWARD THE BAHAMAS...
 
A HURRICANE WARNING REMAINS IN EFFECT FOR THE CENTRAL BAHAMAS
...INCLUDING CAT ISLAND...EXUMAS ISLANDS...LONG ISLAND...RUM CAY
...AND SAN SALVADOR ISLAND.
 
A HURRICANE WATCH REMAINS IN EFFECT FOR THE NORTHWEST BAHAMAS...
INCLUDING THE ABACO ISLANDS...ANDROS ISLAND...BERRY ISLANDS...
BIMINI...ELEUTHERA...GRAND BAHAMA AND NEW PROVIDENCE ISLAND.
 
A TROPICAL STORM WARNING IS IN EFFECT FOR THE TURKS AND CAICOS
ISLANDS AND THE SOUTHEASTERN BAHAMAS.
 
A HURRICANE WATCH MAY BE ISSUED FOR A PORTION OF THE FLORIDA 
EAST COAST AT 5 AM THIS MORNING.
 
INTERESTS IN THE SOUTHEAST U.S. SHOULD MONITOR THE PROGRESS OF 
THIS DANGEROUS HURRICANE.
 
AT 2 AM AST...0600Z...THE CENTER OF HURRICANE FLOYD WAS LOCATED
NEAR LATITUDE 23.6 NORTH...LONGITUDE  70.0 WEST OR ABOUT 290
MILES...465 KM...EAST OF SAN SALVADOR IN THE CENTRAL BAHAMAS.
 
FLOYD IS MOVING TOWARD THE WEST NEAR 14 MPH...22 KM/HR...AND THIS
MOTION IS EXPECTED TO CONTINUE THROUGH TODAY.
 
MAXIMUM SUSTAINED WINDS ARE NOW NEAR NEAR 150 MPH...250 KM/HR...
WITH HIGHER GUSTS.  FLOYD IS A CATEGORY FOUR HURRICANE ON THE
SAFFIR/SIMPSON HURRICANE SCALE.  SOME FLUCTUATIONS IN STRENGTH 
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 290 MILES...465 KM.
 
THE LATEST MINIMUM CNTREAL PRESSURE REPORTED BY THE AIR FORCE
HURRICANE HUNTER AIRCRAFT WAS  923 MB...27.26 INCHES.

STORM SURGE FLOODING OF 10 TO 15 FEET ABOVE NORMAL TIDE LEVELS...
ACCOMPANIED BY LARGE AND DANGEROUS BATTERING WAVES...ARE POSSIBLE
IN THE HURRICANE WARNING AREA.

AN OUTER RAINBAND OF FLOYD IS PRODUCING LOCALLY HEAVY RAINS OVER
PORTIONS OF PUERTO RICO AND THE VIRGIN ISLANDS.
 
REPEATING THE 2 AM AST POSITION...23.6 N... 70.0 W.  MOVEMENT
TOWARD...WEST NEAR 14 MPH.  MAXIMUM SUSTAINED WINDS...150 MPH. 
MINIMUM CENTRAL PRESSURE... 923 MB.
 
THE NEXT ADVISORY WILL BE ISSUED BY THE NATIONAL HURRICANE CENTER
AT 5 AM AST.

GUINEY
 
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