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Tropical Storm KRISTY


ZCZC MIATCDEP2 ALL
TTAA00 KNHC DDHHMM
TROPICAL STORM KRISTY DISCUSSION NUMBER  20
NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL   EP122006
200 PM PDT SUN SEP 03 2006
 
AN AREA OF STRONG CONVECTION HAS DEVELOPED SINCE 1200Z WEST OF THE
LOW-LEVEL CIRCULATION WITH A SUBSTANTIAL AREA OF CLOUD TOP
TEMPERATURES BELOW -70 C. THE CURRENT MOTION OF 180/2 SIGNALS AN
EARLIER-THAN-FORECAST TURN TO THE WEST AND SINCE THE CONVECTION IS
MOVING OVER THE SURFACE CIRCULATION...WE EXPECT KRISTY TO MAINTAIN
TROPICAL STORM INTENSITY IN THE NEAR TERM AND THEN WEAKEN AS IT
MOVES OVER COOLER WATER IN THE 36-48 HOUR TIME FRAME. THIS INTENSITY
FORECAST IS BASED ON MODERATE SHEAR IN THE SHIPS GUIDANCE AND THE
GFDL MODEL.
 
THE WEAK SUBTROPICAL RIDGE NORTH OF KRISTY IS FORECAST TO BUILD IN
THE NEXT THREE DAYS...INTENSIFYING THE TRADE EASTERLIES...AND
DRIVING THE STORM TOWARD THE WEST. THE GFS GFDL UKMET ECMWF AND
NOGAPS MODELS ARE IN GOOD AGREEMENT EXCEPT FOR SPEED WITH THE UKMET
AND ECMWF SLOW AND GFDL AND GFS FAST. OUR TRACK MORE CLOSELY FOLLOWS
CONSENSUS BUT IS SHADED TOWARDS THE UKMET/ECMWF.
 
FORECAST POSITIONS AND MAX WINDS
 
INITIAL      03/2100Z 17.7N 118.1W    35 KT
 12HR VT     04/0600Z 17.5N 118.1W    35 KT
 24HR VT     04/1800Z 17.3N 118.2W    35 KT
 36HR VT     05/0600Z 17.5N 119.5W    30 KT
 48HR VT     05/1800Z 18.0N 121.6W    25 KT...DISSIPATING
 72HR VT     06/1800Z 18.9N 126.3W    20 KT...REMNANT LOW
 96HR VT     07/1800Z...DISSIPATED
 
$$
FORECASTER FIORINO/FRANKLIN
 
NNNN


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Page last modified: Monday, 11-Sep-2006 11:28:44 UTC