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BULLETIN
HURRICANE DENNIS ADVISORY NUMBER  23
NATIONAL WEATHER SERVICE MIAMI FL
11 AM EDT SUN AUG 29 1999

...LARGE SWELLS IMPACTING THE SOUTH ATLANTIC COAST...
 
AT 11 AM EDT...1500Z...THE TROPICAL STORM WARNING IS EXTENDED
NORTHWARD FROM SURF CITY TO CAPE HATTERAS NORTH CAROLINA.  A
TROPICAL STORM WARNING IS NOW IN EFFECT FROM SAVANNAH GEORGIA TO
CAPE HATTERAS NORTH CAROLINA.  A HURRICANE WATCH REMAINS IN EFFECT
FROM NORTH OF SAVANNAH GEORGIA TO CAPE HATTERAS NORTH CAROLINA.
 
AT 11 AM EDT...1500Z...A TROPICAL STORM WATCH IS IN EFFECT NORTH OF
CAPE HATTERAS NORTH CAROLINA TO CAPE CHARLES LIGHT VIRGINIA.
 
AT 11 AM EDT...1500Z...THE CENTER OF HURRICANE DENNIS WAS LOCATED
NEAR LATITUDE 30.4 NORTH...LONGITUDE  78.5 WEST OR ABOUT 195 MILES
SOUTH-SOUTHEAST OF CHARLESTON SOUTH CAROLINA AND ABOUT 270 MILES
SOUTH OF WILMINGTON NORTH CAROLINA.
 
DENNIS IS MOVING TOWARD THE NORTH NEAR 10 MPH AND A GRADUAL TURN
TOWARD THE NORTH-NORTHEAST IS EXPECTED DURING THE NEXT 24 HOURS.
ALTHOUGH THE CENTER OF THE HURRICANE IS FORECAST TO REMAIN
OFFSHORE...THE LARGE EXTENT OF WINDS REQUIRES THE WATCHES AND
WARNINGS AS STATED ABOVE.
 
MAXIMUM SUSTAINED WINDS ARE NEAR 105 MPH WITH HIGHER GUSTS.  SOME
ADDITIONAL INCREASE IN STRENGTH IS POSSIBLE DURING THE NEXT 24
HOURS.
 
HURRICANE FORCE WINDS EXTEND OUTWARD UP TO  85 MILES FROM THE
CENTER...AND TROPICAL STORM FORCE WINDS EXTEND OUTWARD UP TO 175
MILES.

AN AIR FORCE HURRICANE HUNTER PLANE RECENTLY REPORTED A MINIMUM
CENTRAL PRESSURE OF 969 MB...28.61 INCHES.
 
ONSHORE WINDS IN THE WARNING AREA COULD PRODUCE STORM SURGE FLOODING
OF 2 TO 4 FEET ABOVE NORMAL TIDE LEVELS.  ALSO LARGE SWELLS WELL
AHEAD OF THE HURRICANE ARE REACHING PORTIONS OF THE SOUTHEAST U.S.
COAST AND GENERATING DANGEROUS SURF CONDITIONS.  SEE STATEMENTS FROM
LOCAL NATIONAL WEATHER SERVICE OFFICES.
 
REPEATING THE 11 AM EDT POSITION...30.4 N... 78.5 W.  MOVEMENT
TOWARD...NORTH NEAR 10 MPH.  MAXIMUM SUSTAINED WINDS...105 MPH. 
MINIMUM CENTRAL PRESSURE... 971 MB.
 
AN INTERMEDIATE ADVISORY WILL BE ISSUED BY THE NATIONAL HURRICANE
CENTER AT 2 PM EDT FOLLOWED BY THE NEXT COMPLETE ADVISORY AT 5 PM
EDT.
 
PASCH
 
STRIKE PROBABILITIES ASSOCIATED WITH THIS ADVISORY NUMBER CAN BE
FOUND UNDER AFOS HEADER MIASPFAT5 AND WMO HEADER WTNT75 KNHC.
 
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