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HURRICANE ISAAC DISCUSSION NUMBER  37
NATIONAL WEATHER SERVICE MIAMI FL
11 AM EDT SAT SEP 30 2000

ISAAC IS STILL MAINTAINING A WARM INNER CORE.  HOWEVER...T-NUMBERS
ARE GRADUALLY DECREASING AS THE RINGS OF CONVECTION SURROUNDING THE
CENTER WEAKEN.  WINDS ARE ADJUSTED TO 75 KNOTS.

ISAAC IS ALREADY EMBEDDED WITHIN THE SOUTHWESTERLY FLOW AHEAD OF AN
UPPER TROUGH AND IS MOVING NORTHEAST AT 20 KNOTS.  ISAAC SHOULD
ACCELERATE AND BEGIN ITS EXTRATROPICAL TRANSITION BEYOND 24 HOURS.
 
FORECASTER AVILA
 
FORECAST POSITIONS AND MAX WINDS
 
INITIAL     30/1500Z 37.7N  50.7W    75 KTS
12HR VT     01/0000Z 40.0N  47.5W    65 KTS
24HR VT     01/1200Z 42.5N  41.5W    55 KTS
36HR VT     02/0000Z 45.0N  35.0W    50 KTS...EXTRATROPICAL
48HR VT     02/1200Z 51.0N  26.0W    50 KTS...EXTRATROPICAL
 
 
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