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HURRICANE GERT ADVISORY NUMBER  30
NATIONAL WEATHER SERVICE MIAMI FL
5 PM AST SAT SEP 18 1999

...GERT HEADING NORTHWESTWARD...

INTERESTS IN BERMUDA SHOULD CLOSELY MONITOR THE PROGRESS OF GERT.
 
AT 5 PM AST...2100Z...THE CENTER OF HURRICANE GERT WAS LOCATED NEAR
LATITUDE 23.2 NORTH...LONGITUDE  58.1 WEST OR ABOUT 735 MILES...1190
KM...SOUTH SOUTHEAST OF BERMUDA.
 
GERT IS MOVING TOWARD THE NORTHWEST NEAR 10 MPH ...17 KM/HR...AND
THIS MOTION IS EXPECTED TO CONTINUE DURING THE NEXT 24 HOURS.
 
MAXIMUM SUSTAINED WINDS ARE NEAR 120 MPH...195 KM/HR...WITH HIGHER
GUSTS.  SOME FLUCTUATIONS IN INTENSITY ARE LIKELY DURING THE NEXT
DAY OR TWO.
 
HURRICANE FORCE WINDS EXTEND OUTWARD UP TO 120 MILES...195 KM...
FROM THE CENTER...AND TROPICAL STORM FORCE WINDS EXTEND OUTWARD UP
TO 260 MILES...415 KM MAINLY TO THE EAST OF THE CENTER.
 
ESTIMATED MINIMUM CENTRAL PRESSURE IS  960 MB...28.35 INCHES.
 
REPEATING THE 5 PM AST POSITION...23.2 N... 58.1 W.  MOVEMENT
TOWARD...NORTHWEST NEAR 10 MPH.  MAXIMUM SUSTAINED
WINDS...120 MPH.  MINIMUM CENTRAL PRESSURE... 960 MB.
 
THE NEXT ADVISORY WILL BE ISSUED BY THE NATIONAL HURRICANE CENTER AT
11 PM AST.
 
AVILA
 
STRIKE PROBABILITIES ASSOCIATED WITH THIS ADVISORY NUMBER CAN BE
FOUND UNDER AFOS HEADER MIASPFAT4 AND WMO HEADER WTNT74 KNHC.
 
 
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