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HURRICANE DENNIS INTERMEDIATE ADVISORY NUMBER  17A
NATIONAL WEATHER SERVICE MIAMI FL
2 AM EDT SAT AUG 28 1999

...DENNIS DRIFTING NORTHWESTWARD...HURRICANE CONDITIONS SPREADING
OVER THE ABACOS...
 
HURRICANE WARNINGS REMAIN IN EFFECT FOR...ELEUTHERA...THE ABACOS...
BERRY AND GRAND BAHAMA ISLANDS.
 
A TROPICAL STORM WARNING REMAINS IN EFFECT FOR THE EAST COAST OF
FLORIDA FROM SEBASTIAN INLET TO FLAGLER BEACH.  A HURRICANE WATCH
REMAINS IN EFFECT FROM SEBASTIAN INLET NORTHWARD TO FERNANDINA
BEACH.

IT MAY BE NECESSARY TO ADJUST WATCHES AND WARNINGS NORTHWARD AND
RESIDENTS OF GEORGIA...SOUTH AND NORTH CAROLINA SHOULD CLOSELY
MONITOR THE PROGRESS OF DENNIS.

AT 2 AM EDT...0600Z...THE CENTER OF HURRICANE DENNIS WAS LOCATED
NEAR LATITUDE 26.5 NORTH...LONGITUDE  76.6 WEST.  THIS POSITION IS
ABOUT 25 MILES...40 KM...EAST OF GREAT ABACO ISLAND IN THE BAHAMAS
AND ABOUT 280 MILES EAST-SOUTHEAST OF CAPE CANAVERAL FLORIDA.
 
DENNIS IS NOW DRIFTING TOWARD THE NORTHWEST NEAR  6 MPH...10
KPH...AND THIS GENERAL MOTION IS EXPECTED TO CONTINUE TODAY.  ON
THIS TRACK THE CENTER IS EXPECTED TO MOVE VERY CLOSE TO THE ABACO
ISLANDS TODAY.
 
MAXIMUM SUSTAINED WINDS ARE NEAR  80 MPH...WITH HIGHER GUSTS. 
GRADUAL STRENGTHENING IS FORECAST DURING THE NEXT 24 HOURS.  A
NUMBER OF AMATEUR RADIO REPORTS HAVE BEEN RECEIVED FROM GREAT ABACO
ISLAND OF TROPICAL STORM FORCE WINDS AND THESE COULD INCREASE TO
HURRICANE FORCE LATER THIS MORNING.

HURRICANE FORCE WINDS EXTEND OUTWARD UP TO  30 MILES FROM THE
CENTER...AND TROPICAL STORM FORCE WINDS EXTEND OUTWARD UP TO 
145 MILES.
 
THE LATEST MINIMUM CENTRAL PRESSURE REPORTED BY THE AIR FORCE
RESERVE HURRICANE HUNTER AIRCRAFT WAS 980 MB...28.94 INCHES.
 
RAINFALL AMOUNTS OF 5 TO 10 INCHES ARE LIKELY ALONG THE PATH OF
THE HURRICANE.
 
STORM SURGE FLOODING OF 4 TO 8 FEET ABOVE NORMAL TIDE LEVELS...
ACCOMPANIED BY LARGE AND DANGEROUS BATTERING WAVES ARE LIKELY IN
THE BAHAMA ISLANDS NEAR THE PATH OF THE HURRICANE.
 
REPEATING THE 2 AM EDT POSITION...26.5 N...76.6 W.  MOVEMENT
TOWARD...NORTHWEST NEAR 6 MPH.  MAXIMUM SUSTAINED WINDS... 
80 MPH.  MINIMUM CENTRAL PRESSURE... 980 MB.
 
THE NEXT ADVISORY WILL BE ISSUED BY THE NATIONAL HURRICANE CENTER
AT 5 AM EDT.
 
LAWRENCE

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