SWOMCD
SPC MCD 100111
NCZ000-VAZ000-TNZ000-KYZ000-GAZ000-100215-
MESOSCALE DISCUSSION 2101
NWS STORM PREDICTION CENTER NORMAN OK
0811 PM CDT FRI OCT 09 2009
AREAS AFFECTED...ERN TN
CONCERNING...TORNADO WATCH 767...
VALID 100111Z - 100215Z
THE SEVERE WEATHER THREAT FOR TORNADO WATCH 767 CONTINUES.
AN ISOLATED SEVERE THREAT ONGOING ACROSS WW 767 IS LIKELY TO PERSIST
FOR A FEW MORE HOURS AS STORMS MOVE EWD INTO WRN VA. HOWEVER...THE
THREAT SHOULD BECOME INCREASINGLY MARGINAL THIS EVENING AND A WW IS
NOT ANTICIPATED EAST OF THE CURRENT WW.
A LINE OF STRONG THUNDERSTORMS IN FAR ERN TN IS LOCATED ALONG THE
NRN EDGE OF MODERATE INSTABILITY WHERE THE RUC IS ANALYZING ABOUT
1000 J/KG OF MLCAPE. THIS SHOULD BE ENOUGH TO KEEP THE STORMS GOING
EWD INTO WRN VA. WSR-88D VWPS IN WRN VA CONTINUE TO SHOW
UNIDIRECTIONAL WIND PROFILES WITH STRONG VERTICAL SHEAR. THIS WILL
BE ENOUGH FOR AN ISOLATED SEVERE THREAT OVER THE NEXT 1-2 HOURS.
HOWEVER...THE RUC SUGGESTS INSTABILITY IS BEGINNING TO DECREASE.
THIS SHOULD RESULT IN A GRADUAL DOWNTREND IN STORM INTENSITY THIS
EVENING.
..BROYLES.. 10/10/2009
...PLEASE SEE WWW.SPC.NOAA.GOV FOR GRAPHIC PRODUCT...
ATTN...WFO...RNK...RLX...GSP...MRX...JKL...FFC...OHX...
LAT...LON 34988355 35048583 35198583 35228571 35388552 35538553
35808520 35808486 35938469 36078475 36198488 36408469
36608474 36598362 36848308 37028282 37218269 37188256
37018246 36988230 37118196 37028181 36808171 36468166
36248188 36098237 36028254 36008266 36108266 35938283
35908292 35808295 35728314 35598340 35508377 35398394
35328398 35248388 35278375 35268371 35118361 34998348
34988355
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