HOME	ACTIVE CYCLONES	FORECASTS	IMAGERY	ABOUT TPC	RECONNAISSANCE

ZCZC MIATCMAT3 ALL
TTAA00 KNHC DDHHMM COR
HURRICANE FLOYD FORECAST/ADVISORY NUMBER  18
NATIONAL WEATHER SERVICE MIAMI FL   AL0899
0300Z SUN SEP 12 1999

...CORRECTION FOR THE 36-HR SW QUADRANT 50-KT RADII...
 
INTERESTS IN THE BAHAMAS AND THE SOUTHEAST U.S. SHOULD MONITOR 
THE PROGRESS OF THIS HURRICANE OVER THE WEEKEND.
 
HURRICANE CENTER LOCATED NEAR 22.7N  64.5W AT 12/0300Z
POSITION ACCURATE WITHIN  15 NM
 
PRESENT MOVEMENT TOWARD THE WEST NORTHWEST OR 285 DEGREES AT 10 KT
 
ESTIMATED MINIMUM CENTRAL PRESSURE  967 MB
EYE DIAMETER  20 NM
MAX SUSTAINED WINDS  95 KT WITH GUSTS TO 115 KT
64 KT....... 90NE  45SE  30SW  45NW
50 KT.......100NE  75SE  35SW  90NW
34 KT.......150NE 125SE  75SW 125NW
12 FT SEAS..200NE 150SE 100SW 200NW
ALL QUADRANT RADII IN NAUTICAL MILES
 
REPEAT...CENTER LOCATED NEAR 22.7N  64.5W AT 12/0300Z
AT 12/0000Z CENTER WAS LOCATED NEAR 22.6N  64.0W
 
FORECAST VALID 12/1200Z 22.9N  66.0W
MAX WIND  95 KT...GUSTS 115 KT
64 KT... 90NE  45SE  30SW  45NW
50 KT...100NE  75SE  35SW  90NW
34 KT...150NE 125SE  75SW 125NW
 
FORECAST VALID 13/0000Z 23.2N  68.3W
MAX WIND 100 KT...GUSTS 120 KT
64 KT... 90NE  45SE  30SW  45NW
50 KT...100NE  75SE  35SW  90NW
34 KT...150NE 125SE  75SW 125NW
 
FORECAST VALID 13/1200Z 23.5N  70.5W
MAX WIND 105 KT...GUSTS 130 KT
64 KT... 90NE  60SE  60SW  60NW
50 KT...100NE  75SE  75SW  90NW
34 KT...175NE 150SE 125SW 150NW
 
REQUEST FOR 3 HOURLY SHIP REPORTS WITHIN 300 MILES OF 22.7N  64.5W
 
EXTENDED OUTLOOK...USE FOR GUIDANCE ONLY...ERRORS MAY BE LARGE
 
OUTLOOK VALID 14/0000Z 24.5N  73.5W
MAX WIND 110 KT...GUSTS 135 KT
50 KT...100NE  75SE  60SW  90NW
 
OUTLOOK VALID 15/0000Z 27.0N  78.5W
MAX WIND 110 KT...GUSTS 135 KT
50 KT...100NE  75SE  60SW  90NW
 
NEXT ADVISORY AT 12/0900Z
 
AVILA
 
STRIKE PROBABILITIES ASSOCIATED WITH THIS ADVISORY NUMBER CAN BE
FOUND UNDER AFOS HEADER MIASPFAT3 AND WMO HEADER WTNT73 KNHC.
 
NNNN