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TROPICAL STORM KYLE DISCUSSION NUMBER 36
NATIONAL WEATHER SERVICE MIAMI FL
11 AM EDT SUN SEP 29 2002
THE LOW-LEVEL CENTER WAS COMPLETELY EXPOSED OVER NIGHT DUE TO
NORTHEASTERLY SHEAR. HOWEVER... DURING THE PAST COUPLE OF
HOURS...DEEP CONVECTION HAS REGENERATED NEAR AND SOUTH THE CENTER
OF CIRCULATION...WHICH IN FACT IS VERY WELL DEFINED.
THEREFORE...INITIAL INTENSITY IS KEPT AT 40 KNOTS IN THIS ADVISORY.
MODELS HAS BEEN INSISTING THAT SHEAR WILL RELAX AND MAYBE THIS
REDEVELOPMENT OF THE CONVECTION COULD BE THE BEGINNING. BECAUSE
THERE ARE NO CLEAR SIGNS THAT THE SHEAR WILL RELAX COMPLETELY...NO
SIGNIFICANT CHANGE IS INDICATED FOR THE NEXT 24 HOURS. HOWEVER...IF
IT DOES...KYLE COULD EVENTUALLY REGAIN HURRICANE STATUS AS
INDICATED BY SHIPS AND THE GFDL.
STEERING CURRENTS ARE VERY WEAK AND KYLE HAS BEEN NEARLY STATIONARY
OR DRIFTING WESTWARD. THE FACT THAT THE MODELS SUGGEST TRACK IN ALL
DIRECTIONS IN THE SHORT TERM IS AN INDICATION OF WEAK STEERING.
THE OFFICIAL FORECAST IS NO DIFFERENT FROM THE PREVIOUS ONE AND
KEEP KYLE OF A VERY SLOW SOUTHWESTWARD DRIFT THROUGH THE FORECAST
PERIOD.
THE OUTLIER BUT THE MOST INTERESTING MODEL IS THE NOGAPS. IT
MAINTAINS KYLE SOUTH OF THE RIDGE AND BRINGS A STRONG TROPICAL
STORM OR A HURRICANE ACROSS THE BAHAMAS AND THE NORTH COAST OF CUBA
IN THE LONG RANGE. THIS SCENARIO IS HIGHLY UNLIKELY TO OCCUR.
FORECASTER AVILA
FORECAST POSITIONS AND MAX WINDS
INITIAL 29/1500Z 27.7N 64.8W 40 KTS
12HR VT 30/0000Z 27.7N 65.2W 40 KTS
24HR VT 30/1200Z 27.6N 65.6W 40 KTS
36HR VT 01/0000Z 27.5N 66.0W 45 KTS
48HR VT 01/1200Z 27.0N 66.5W 50 KTS
72HR VT 02/1200Z 26.5N 66.7W 60 KTS
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