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HURRICANE GERT ADVISORY NUMBER  13
NATIONAL WEATHER SERVICE MIAMI FL
11 AM AST TUE SEP 14 1999

...HURRICANE GERT MOVING STEADILY WESTWARD...
 
AT 11 AM AST...1500Z...THE CENTER OF HURRICANE GERT
WAS LOCATED NEAR LATITUDE 17.1 NORTH...LONGITUDE  45.3 WEST
OR ABOUT 1050 MILES...1700 KM...EAST OF THE LESSER ANTILLES.
 
GERT IS MOVING TOWARD THE WEST NEAR 16 MPH ...26 KM/HR...AND THIS
MOTION IS EXPECTED TO CONTINUE FOR THE NEXT COUPLE OF DAYS.
 
MAXIMUM SUSTAINED WINDS ARE NEAR 105 MPH...165 KM/HR...WITH HIGHER
GUSTS.  SOME STRENGTHENING IS FORECAST DURING THE NEXT 24 HOURS.
 
HURRICANE FORCE WINDS EXTEND OUTWARD UP TO  35 MILES... 55 KM...
FROM THE CENTER...AND TROPICAL STORM FORCE WINDS EXTEND OUTWARD UP
TO 140 MILES...220 KM.
 
ESTIMATED MINIMUM CENTRAL PRESSURE IS  970 MB...28.64 INCHES.
 
REPEATING THE 11 AM AST POSITION...17.1 N... 45.3 W.  MOVEMENT
TOWARD...WEST NEAR 16 MPH.  MAXIMUM SUSTAINED WINDS...105 MPH. 
MINIMUM CENTRAL PRESSURE... 970 MB.
 
THE NEXT ADVISORY WILL BE ISSUED BY THE NATIONAL HURRICANE CENTER AT
5 PM AST.
 
JARRELL
 
STRIKE PROBABILITIES ASSOCIATED WITH THIS ADVISORY NUMBER CAN BE
FOUND UNDER AFOS HEADER MIASPFAT4 AND WMO HEADER WTNT74 KNHC.
 
 
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