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HURRICANE GERT FORECAST/ADVISORY NUMBER  25
NATIONAL WEATHER SERVICE MIAMI FL   AL0999
1500Z FRI SEP 17 1999
  
HURRICANE CENTER LOCATED NEAR 20.2N  56.3W AT 17/1500Z
POSITION ACCURATE WITHIN  15 NM
 
PRESENT MOVEMENT TOWARD THE WEST NORTHWEST OR 300 DEGREES AT  9 KT
 
ESTIMATED MINIMUM CENTRAL PRESSURE  944 MB
EYE DIAMETER  35 NM
MAX SUSTAINED WINDS 120 KT WITH GUSTS TO 145 KT
64 KT.......105NE  75SE  50SW  90NW
50 KT.......150NE 130SE  90SW 130NW
34 KT.......200NE 175SE 125SW 160NW
12 FT SEAS..500NE 500SE 300SW 400NW
ALL QUADRANT RADII IN NAUTICAL MILES
 
REPEAT...CENTER LOCATED NEAR 20.2N  56.3W AT 17/1500Z
AT 17/1200Z CENTER WAS LOCATED NEAR 20.0N  55.9W
 
FORECAST VALID 18/0000Z 20.9N  57.3W
MAX WIND 120 KT...GUSTS 145 KT
64 KT...105NE  75SE  50SW  90NW
50 KT...150NE 130SE  90SW 130NW
34 KT...200NE 175SE 125SW 160NW
 
FORECAST VALID 18/1200Z 22.0N  58.5W
MAX WIND 120 KT...GUSTS 145 KT
64 KT...105NE  75SE  50SW  90NW
50 KT...150NE 130SE  90SW 130NW
34 KT...200NE 175SE 125SW 160NW
 
FORECAST VALID 19/0000Z 23.5N  60.0W
MAX WIND 115 KT...GUSTS 140 KT
64 KT...105NE  75SE  50SW  90NW
50 KT...150NE 130SE  90SW 130NW
34 KT...200NE 175SE 125SW 160NW
 
REQUEST FOR 3 HOURLY SHIP REPORTS WITHIN 300 MILES OF 20.2N  56.3W
 
EXTENDED OUTLOOK...USE FOR GUIDANCE ONLY...ERRORS MAY BE LARGE
 
OUTLOOK VALID 19/1200Z 24.5N  61.5W
MAX WIND 115 KT...GUSTS 140 KT
50 KT...150NE 130SE  90SW 130NW
 
OUTLOOK VALID 20/1200Z 27.0N  65.0W
MAX WIND 115 KT...GUSTS 140 KT
50 KT...150NE 130SE  90SW 130NW
 
NEXT ADVISORY AT 17/2100Z
 
AVILA
 
STRIKE PROBABILITIES ASSOCIATED WITH THIS ADVISORY NUMBER CAN BE
FOUND UNDER AFOS HEADER MIASPFAT4 AND WMO HEADER WTNT74 KNHC.
 
 
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