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HURRICANE GERT INTERMEDIATE ADVISORY NUMBER  40A
NATIONAL WEATHER SERVICE MIAMI FL
8 AM AST TUE SEP 21 1999

...GERT TURNING NORTH...HIGH WINDS IMPACTING BERMUDA...
 
A HURRICANE WARNING REMAINS IN EFFECT FOR BERMUDA.
 
AT 8 AM AST...1200Z...THE CENTER OF HURRICANE GERT WAS LOCATED NEAR
LATITUDE 31.1 NORTH...LONGITUDE  62.6 WEST OR ABOUT 150 MILES...240
KM...SOUTHEAST OF BERMUDA.
 
GERT IS MOVING TOWARD THE NORTH NEAR 10 MPH ...17 KM/HR...AND THIS
MOTION IS EXPECTED TO CONTINUE TODAY WITH A GRADUAL TURN TOWARD THE
NORTHEAST.
 
MAXIMUM SUSTAINED WINDS ARE NEAR 110 MPH...175 KM/HR...WITH HIGHER
GUSTS.  SOME WEAKENING IS FORECAST DURING THE NEXT 24 HOURS.
 
HURRICANE FORCE WINDS EXTEND OUTWARD UP TO 140 MILES...220 KM...
FROM THE CENTER...AND TROPICAL STORM FORCE WINDS EXTEND OUTWARD UP
TO 260 MILES...415 KM.
 
RECENTLY...WIND GUSTS TO 74 MPH HAVE BEEN REPORTED AT BERMUDA.

THE ESTIMATED MINIMUM CENTRAL PRESSURE IS 954 MB... 28.17 INCHES.
 
A STORM SURGE OF 3 TO 5 FEET IS POSSIBLE ACCOMPANIED BY LARGE
BATTERING WAVES OVER PORTIONS OF BERMUDA.
 
REPEATING THE 8 AM AST POSITION...31.1 N... 62.6 W.  MOVEMENT
TOWARD...NORTH NEAR 10 MPH.  MAXIMUM SUSTAINED WINDS...110 MPH. 
MINIMUM CENTRAL PRESSURE... 954 MB.
 
THE NEXT ADVISORY WILL BE ISSUED BY THE NATIONAL HURRICANE CENTER AT
11 AM AST.
 
JARVINEN/PASCH
 
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