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HURRICANE FLOYD ADVISORY NUMBER  31
NATIONAL WEATHER SERVICE MIAMI FL
5 AM EDT WED SEP 15 1999

...RAINBANDS OF FLOYD AFFECTING THE CENTRAL FLORIDA COAST... 
 
AT 5 AM EDT...0900Z...A TROPICAL STORM WATCH IS NOW IN EFFECT FROM
NORTH OF CHINCOTEAGUE VIRGINIA TO CAPE HENLOPEN DELAWARE INCLUDING
THE CHESAPEAKE NORTH OF SMITH POINT AND THE POTOMAC FROM COBB ISLAND
TO SMITH POINT.
 
A HURRICANE WARNING REMAINS IN EFFECT FROM FORT PIERCE FLORIDA TO
THE NORTH CAROLINA/VIRGINIA BORDER...INCLUDING PAMLICO AND ALBEMARLE
SOUNDS.  THE WARNINGS ALONG PORTIONS OF THE FLORIDA EAST COAST WILL
LIKELY BE LOWERED LATER TODAY.
 
A HURRICANE WARNING REMAINS IN EFFECT FOR THE GRAND BAHAMA AND
ABACO ISLANDS IN THE NORTHWEST BAHAMAS.  THESE WARNINGS WILL
LIKELY BE DISCONTINUED LATER THIS MORNING.
 
A HURRICANE WATCH CONTINUES IN EFFECT FROM THE NORTH CAROLINA/
VIRGINIA BORDER TO CHINCOTEAGUE VIRGINIA...INCLUDING CHESAPEAKE
BAY SOUTH OF SMITH POINT.
 
INTERESTS ALONG THE FLORIDA EAST COAST SOUTH OF FORT PIERCE SHOULD
MAINTAIN PRECAUTIONS UNTIL WINDS AND SEAS SUBSIDE.
 
AT 5 AM EDT...0900Z...THE CENTER OF HURRICANE FLOYD WAS LOCATED NEAR
LATITUDE 28.8 NORTH...LONGITUDE  78.8 WEST OR ABOUT 110 MILES EAST-
NORTHEAST OF CAPE CANAVERAL FLORIDA AND ABOUT 380 MILES SOUTH OF
WILMINGTON NORTH CAROLINA.
 
FLOYD IS MOVING TOWARD THE NORTH NORTHWEST NEAR 14 MPH AND A GRADUAL
TURN TOWARD THE NORTH WITH SOME INCREASE IN FORWARD SPEED IS LIKELY
LATER TODAY.
 
MAXIMUM SUSTAINED WINDS ARE NEAR 140 MPH WITH HIGHER GUSTS.  FLOYD
REMAINS AN EXTREMELY DANGEROUS 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 125 MILES...205 KM...
FROM THE CENTER...AND TROPICAL STORM FORCE WINDS EXTEND OUTWARD UP
TO 290 MILES...465 KM. THE MOST RECENT OBSERVATIONS FROM DAYTONA
BEACH AND SHOW A GUST TO 69 MPH.  THE NOAA BUOY 41009...LOCATED
ABOUT 20 MILES OFF THE COAST OF CAPE CANAVERAL...RECENTLY REPORTED 
GUSTS TO 76 MPH AND 34 FT SEAS.

THE LATEST MINIMUM CENTRAL PRESSURE REPORTED BY THE AIR FORECE
RESERVE HURRICANE HUNTER AIRCRAFT WAS  938 MB...27.70 INCHES.
  
STORM SURGE FLOODING OF 12 TO 15 FEET ABOVE NORMAL TIDE LEVELS...
ALONG WITH LARGE AND DANGEROUS BATTERING WAVES...ARE EXPECTED NEAR
AND TO THE EAST OF WHERE THE CENTER CROSSES THE COAST.
 
HEAVY SURF ADVISORIES ARE IN EFFECT FOR THE U.S. EAST COAST
NORTHWARD TO CHATHAM MASSACHUSETTS.  REFER TO STATEMENTS ISSUED BY
LOCAL NATIONAL WEATHER SERVICE OFFICES FOR ADDITIONAL INFORMATION.
 
RAINFALL TOTALS OF 5 TO 10 INCHES ARE EXPECTED IN ASSOCIATION WITH
FLOYD.
 
ISOLATED TORNADOES ARE POSSIBLE FROM NORTHEASTERN FLORIDA TO THE
CAROLINAS.
 
REPEATING THE 5 AM EDT POSITION...28.8 N... 78.8 W.  MOVEMENT
TOWARD...NORTH NORTHWEST NEAR 14 MPH.  MAXIMUM SUSTAINED WINDS...
140 MPH.  MINIMUM CENTRAL PRESSURE... 938 MB.
 
AN INTERMEDIATE ADVISORY WILL BE ISSUED BY THE NATIONAL HURRICANE
CENTER AT 8 AM EDT FOLLOWED BY THE NEXT COMPLETE ADVISORY AT 11 AM
EDT. 
 
GUINEY
 
STRIKE PROBABILITIES ASSOCIATED WITH THIS ADVISORY NUMBER CAN BE
FOUND UNDER AFOS HEADER MIASPFAT3 AND WMO HEADER WTNT73 KNHC.

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