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HURRICANE GERT INTERMEDIATE ADVISORY NUMBER  39A
NATIONAL WEATHER SERVICE MIAMI FL
2 AM AST TUE SEP 21 1999

...HURRICANE GERT APPROACHING BERMUDA...
 
A HURRICANE WARNING REMAINS IN EFFECT FOR BERMUDA.
 
AT 2 AM AST...0600Z...THE CENTER OF HURRICANE GERT WAS LOCATED NEAR
LATITUDE 30.0 NORTH...LONGITUDE  62.8 WEST OR ABOUT 200 MILES...
320 KM...SOUTHEAST OF BERMUDA. 
 
GERT IS MOVING TOWARD THE NORTH NORTHWEST NEAR 12 MPH...19 KM/HR
...AND A GRADUAL TURN TOWARD THE NORTH IS EXPECTED IN THE NEXT 12 TO
24 HOURS.
 
MAXIMUM SUSTAINED WINDS REMAIN 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.

A STORM SURGE OF 3 TO 5 FEET IS POSSIBLE ACCOMPANIED BY LARGE
BATTERING WAVES OVER PORTIONS OF BERMUDA.
 
ESTIMATED MINIMUM CENTRAL PRESSURE IS  955 MB...28.20 INCHES.
 
REPEATING THE 11 PM AST POSITION...30.0 N... 62.8 W.  MOVEMENT
TOWARD...NORTH NORTHWEST NEAR 12 MPH.  MAXIMUM SUSTAINED WINDS
...110 MPH.  MINIMUM CENTRAL PRESSURE... 955 MB.
 
THE NEXT ADVISORY WILL BE ISSUED BY THE NATIONAL HURRICANE CENTER AT
5 AM AST...TUESDAY.
 
JARVINEN
 
STRIKE PROBABILITIES ASSOCIATED WITH THIS ADVISORY NUMBER CAN BE
FOUND UNDER AFOS HEADER MIASPFAT4 AND WMO HEADER WTNT74 KNHC.
 
 
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