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HURRICANE GERT FORECAST/ADVISORY NUMBER  27
NATIONAL WEATHER SERVICE MIAMI FL   AL0999
0300Z SAT SEP 18 1999
 
HURRICANE CENTER LOCATED NEAR 21.3N  57.1W AT 18/0300Z
POSITION ACCURATE WITHIN  25 NM
 
PRESENT MOVEMENT TOWARD THE NORTHWEST OR 320 DEGREES AT  7 KT
 
ESTIMATED MINIMUM CENTRAL PRESSURE  950 MB
EYE DIAMETER  35 NM
MAX SUSTAINED WINDS 110 KT WITH GUSTS TO 135 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 21.3N  57.1W AT 18/0300Z
AT 18/0000Z CENTER WAS LOCATED NEAR 21.0N  56.8W
 
FORECAST VALID 18/1200Z 22.0N  57.8W
MAX WIND 110 KT...GUSTS 130 KT
64 KT...105NE  75SE  50SW  90NW
50 KT...150NE 130SE  90SW 130NW
34 KT...200NE 175SE 125SW 160NW
 
FORECAST VALID 19/0000Z 23.3N  59.0W
MAX WIND 105 KT...GUSTS 130 KT
64 KT...105NE  75SE  50SW  90NW
50 KT...150NE 130SE  90SW 130NW
34 KT...200NE 175SE 125SW 160NW
 
FORECAST VALID 19/1200Z 24.6N  60.4W
MAX WIND 105 KT...GUSTS 130 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 21.3N  57.1W
 
EXTENDED OUTLOOK...USE FOR GUIDANCE ONLY...ERRORS MAY BE LARGE
 
OUTLOOK VALID 20/0000Z 25.8N  61.8W
MAX WIND 105 KT...GUSTS 130 KT
50 KT...150NE 130SE  90SW 130NW
 
OUTLOOK VALID 21/0000Z 28.0N  65.0W
MAX WIND 105 KT...GUSTS 130 KT
50 KT...150NE 130SE  90SW 130NW
 
NEXT ADVISORY AT 18/0900Z
 
PASCH
 
STRIKE PROBABILITIES ASSOCIATED WITH THIS ADVISORY NUMBER CAN BE
FOUND UNDER AFOS HEADER MIASPFAT4 AND WMO HEADER WTNT74 KNHC.
 
 
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