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HURRICANE GERT FORECAST/ADVISORY NUMBER  40
NATIONAL WEATHER SERVICE MIAMI FL   AL0999
0900Z TUE SEP 21 1999
 
A HURRICANE WARNING REMAINS IN EFFECT FOR BERMUDA.
 
HURRICANE CENTER LOCATED NEAR 30.5N  62.8W AT 21/0900Z
POSITION ACCURATE WITHIN  15 NM
 
PRESENT MOVEMENT TOWARD THE NORTH OR 360 DEGREES AT  9 KT
 
ESTIMATED MINIMUM CENTRAL PRESSURE  955 MB
EYE DIAMETER  20 NM
MAX SUSTAINED WINDS  95 KT WITH GUSTS TO 115 KT
64 KT.......120NE  90SE  50SW  90NW
50 KT.......180NE 150SE  90SW 120NW
34 KT.......225NE 200SE 125SW 160NW
12 FT SEAS..900NE 600SE 600SW 600NW
ALL QUADRANT RADII IN NAUTICAL MILES
 
REPEAT...CENTER LOCATED NEAR 30.5N  62.8W AT 21/0900Z
AT 21/0600Z CENTER WAS LOCATED NEAR 30.0N  62.8W
 
FORECAST VALID 21/1800Z 31.9N  62.7W
MAX WIND  90 KT...GUSTS 110 KT
64 KT...120NE  90SE  50SW  90NW
50 KT...180NE 150SE  90SW 120NW
34 KT...225NE 200SE 125SW 160NW
 
FORECAST VALID 22/0600Z 34.1N  62.0W
MAX WIND  85 KT...GUSTS 105 KT
64 KT...120NE  90SE  50SW  90NW
50 KT...180NE 150SE  90SW 120NW
34 KT...225NE 200SE 125SW 160NW
 
FORECAST VALID 22/1800Z 37.4N  60.7W
MAX WIND  80 KT...GUSTS  95 KT
64 KT...100NE  75SE  50SW  90NW
50 KT...150NE 120SE  90SW 120NW
34 KT...200NE 180SE 100SW 140NW
 
REQUEST FOR 3 HOURLY SHIP REPORTS WITHIN 300 MILES OF 30.5N  62.8W
 
EXTENDED OUTLOOK...USE FOR GUIDANCE ONLY...ERRORS MAY BE LARGE
 
OUTLOOK VALID 23/0600Z 42.6N  56.6W
MAX WIND  75 KT...GUSTS  90 KT
50 KT...120NE 120SE  75SW 120NW
 
OUTLOOK VALID 24/0600Z 54.0N  50.0W
MAX WIND  65 KT...GUSTS  80 KT
50 KT...120NE 120SE  75SW 120NW
 
NEXT ADVISORY AT 21/1500Z
 
JARVINEN
 
STRIKE PROBABILITIES ASSOCIATED WITH THIS ADVISORY NUMBER CAN BE
FOUND UNDER AFOS HEADER MIASPFAT4 AND WMO HEADER WTNT74 KNHC.
 
 
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