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HURRICANE ISAAC ADVISORY NUMBER  31
NATIONAL WEATHER SERVICE MIAMI FL
11 PM AST THU SEP 28 2000

...ISAAC WEAKENS SLIGHTLY BUT STILL A CATEGORY FOUR 
HURRICANE...NO THREAT TO LAND...
 
AT 11 PM AST...0300Z...THE CENTER OF MAJOR HURRICANE ISAAC
WAS LOCATED NEAR LATITUDE 28.6 NORTH...LONGITUDE  55.3 WEST
OR ABOUT 620 MILES...1000 KM...SOUTHEAST OF BERMUDA.
 
ISAAC IS MOVING TOWARD THE NORTH-NORTHWEST NEAR 17 MPH
...28 KM/HR...AND THIS MOTION IS EXPECTED TO CONTINUE FOR THE 
NEXT 12 TO 24 HOURS WITH A GRADUAL TURN TOWARD THE NORTH.
 
MAXIMUM SUSTAINED WINDS ARE NEAR 130 MPH...215 KM/HR...WITH HIGHER
GUSTS...WHICH STILL MAKES ISAAC A CATEGORY 4 HURRICANE ON THE 
SAFFIR-SIMPSON HURRICANE SCALE.  SOME SLOW WEAKENING IS POSSIBLE
DURING THE NEXT 24 HOURS.
 
HURRICANE FORCE WINDS EXTEND OUTWARD UP TO  60 MILES... 95 KM...
FROM THE CENTER...AND TROPICAL STORM FORCE WINDS EXTEND OUTWARD UP
TO 230 MILES...370 KM.
 
ESTIMATED MINIMUM CENTRAL PRESSURE IS  946 MB...27.94 INCHES.
 
REPEATING THE 11 PM AST POSITION...28.6 N... 55.3 W.  MOVEMENT
TOWARD...NORTH NORTHWEST NEAR 17 MPH.  MAXIMUM SUSTAINED
WINDS...130 MPH.  MINIMUM CENTRAL PRESSURE... 946 MB.
 
THE NEXT ADVISORY WILL BE ISSUED BY THE NATIONAL HURRICANE CENTER 
AT 5 AM AST...FRIDAY.
 
FORECASTER STEWART
 
 
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