SWOMCD
SPC MCD 042200
MDZ000-PAZ000-WVZ000-VAZ000-OHZ000-NCZ000-TNZ000-KYZ000-042330-
MESOSCALE DISCUSSION 0352
NWS STORM PREDICTION CENTER NORMAN OK
0500 PM CDT MON APR 04 2011
AREAS AFFECTED...ERN TN...FAR WRN NC AND VA...ERN KY...WV...SWRN PA
CONCERNING...SEVERE THUNDERSTORM WATCH 94...
VALID 042200Z - 042330Z
THE SEVERE WEATHER THREAT FOR SEVERE THUNDERSTORM WATCH 94
CONTINUES.
FAST FORWARD PROPAGATING QLCS WILL APPROACH THE ERN EDGE OF WW 94 BY
23Z...WITH SCATTERED CONVECTION CONTINUING TO DEVELOP AHEAD OF THE
LINE ALONG THE CREST OF THE APPALACHIANS FROM WRN NC/ERN TN N-NEWD
INTO SWRN PA. THIS PRE SQUALL LINE CONVECTION IS FORMING ALONG THE
ERN EDGE OF THE MOISTURE/INSTABILITY AXIS...WHERE SURFACE DEWPOINTS
TRANSITION FROM THE MID-UPR 50S OVER THE TN/OH VALLEYS TO 40S ALONG
AND TO THE LEE OF THE APPALACHIANS. SHORT TERM MODEL GUIDANCE
INDICATES MOISTURE WILL NOT ADVECT NWD IN TIME TO SUPPORT ROBUST
DESTABILIZATION AND MCS MAINTENANCE E OF WW 94. THEREFORE...AN
ADDITIONAL WW DOES NOT APPEAR NECESSARY...THOUGH LOCAL WFO EXTENSION
OF WW 94 IN TIME AND SPACE MAY BE REQUIRED TO ADDRESS ANY LINGERING
SVR WEATHER THREAT.
..GARNER.. 04/04/2011
...PLEASE SEE WWW.SPC.NOAA.GOV FOR GRAPHIC PRODUCT...
ATTN...WFO...CTP...LWX...RNK...PBZ...RLX...GSP...MRX...JKL...
OHX...
LAT...LON 37598048 35778230 35108350 35078515 36148499 38358280
40478046 40687906 39657895 37598048
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