SWOMCD
SPC MCD 082335
VAZ000-NCZ000-WVZ000-TNZ000-KYZ000-090030-
MESOSCALE DISCUSSION 0374
NWS STORM PREDICTION CENTER NORMAN OK
0635 PM CDT FRI APR 08 2011
AREAS AFFECTED...ERN KY/NERN TN/WRN VA/NWRN NC
CONCERNING...SEVERE THUNDERSTORM WATCH 106...107...
VALID 082335Z - 090030Z
THE SEVERE WEATHER THREAT FOR SEVERE THUNDERSTORM WATCH
106...107...CONTINUES.
SEVERE THUNDERSTORMS PRIMARILY CAPABLE OF PRODUCING LARGE HAIL WILL
CONTINUE FOR PORTIONS OF ERN KY...NERN TN...FAR WRN VA...AND NWRN
NC. THE THREAT WILL GRADUALLY DIMINISH EAST OF THE APPALACHIANS.
A WEAK UPPER WAVE OBSERVED ON WV IMAGERY OVER ERN KY/TN HAS
INFLUENCED CONVECTIVE DEVELOPMENT ALONG AN AREA OF SURFACE
CONFLUENCE...NOW TRANSLATING ESEWD TO THE SPINE OF THE APPALACHIANS
IN ADVANCE OF THE UPPER WAVE. A SEPARATE AREA OF SURFACE CONFLUENCE
HAS BEEN NOTED FROM SWRN WV WWD INTO CNTRL KY...WHERE AGITATED CU
HAS BEEN OBSERVED ON VISIBLE IMAGERY. HOWEVER...UPPER RIDGING AND
SUBSIDENCE SEEMS TO BE LIMITING STRONGER CONVECTIVE DEVELOPMENT.
STEEP MID LEVEL LAPSE RATES NEAR 7 C/KM AND AMPLE EFFECTIVE SHEAR
NEAR 50 TO 60 KTS HAS SUPPORTED LARGE HAIL DEVELOPMENT...AND SHOULD
CONTINUE OVER THE WW AREA.
..HURLBUT.. 04/08/2011
...PLEASE SEE WWW.SPC.NOAA.GOV FOR GRAPHIC PRODUCT...
ATTN...WFO...RNK...RLX...GSP...MRX...JKL...LMK...
LAT...LON 36468046 36068070 36038288 35608393 36858494 38268359
38148225 36468046
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