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HURRICANE DENNIS FORECAST/ADVISORY NUMBER  23
NATIONAL WEATHER SERVICE MIAMI FL   AL0599
1500Z SUN AUG 29 1999
 
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.
 
HURRICANE CENTER LOCATED NEAR 30.4N  78.5W AT 29/1500Z
POSITION ACCURATE WITHIN  30 NM
 
PRESENT MOVEMENT TOWARD THE NORTH OR 355 DEGREES AT  9 KT
 
ESTIMATED MINIMUM CENTRAL PRESSURE  971 MB
EYE DIAMETER  30 NM
MAX SUSTAINED WINDS  90 KT WITH GUSTS TO 110 KT
64 KT....... 75NE  60SE  50SW  50NW
50 KT.......125NE 125SE  75SW 100NW
34 KT.......150NE 140SE 100SW 140NW
12 FT SEAS..200NE 150SE 150SW 200NW
ALL QUADRANT RADII IN NAUTICAL MILES
 
REPEAT...CENTER LOCATED NEAR 30.4N  78.5W AT 29/1500Z
AT 29/1200Z CENTER WAS LOCATED NEAR 30.0N  78.4W
 
FORECAST VALID 30/0000Z 31.7N  78.5W
MAX WIND  90 KT...GUSTS 110 KT
64 KT... 75NE  60SE  50SW  50NW
50 KT...125NE 125SE  75SW 100NW
34 KT...150NE 140SE 100SW 140NW
 
FORECAST VALID 30/1200Z 33.0N  77.5W
MAX WIND  95 KT...GUSTS 115 KT
64 KT... 75NE  60SE  50SW  50NW
50 KT...125NE 125SE  75SW 100NW
34 KT...150NE 140SE 100SW 140NW
 
FORECAST VALID 31/0000Z 34.0N  76.0W
MAX WIND 100 KT...GUSTS 120 KT
64 KT... 75NE  60SE  50SW  50NW
50 KT...125NE 125SE  75SW 100NW
34 KT...150NE 140SE 100SW 140NW
 
REQUEST FOR 3 HOURLY SHIP REPORTS WITHIN 300 MILES OF 30.4N  78.5W
 
EXTENDED OUTLOOK...USE FOR GUIDANCE ONLY...ERRORS MAY BE LARGE
 
OUTLOOK VALID 31/1200Z 34.7N  74.5W
MAX WIND 100 KT...GUSTS 120 KT
50 KT...125NE 125SE  75SW 100NW
 
OUTLOOK VALID 01/1200Z 36.0N  72.0W
MAX WIND 100 KT...GUSTS 120 KT
50 KT...125NE 125SE  75SW 100NW
 
NEXT ADVISORY AT 29/2100Z
 
PASCH
 
STRIKE PROBABILITIES ASSOCIATED WITH THIS ADVISORY NUMBER CAN BE
FOUND UNDER AFOS HEADER MIASPFAT5 AND WMO HEADER WTNT75 KNHC.
 
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