[MCD] SWOMCD

[Mesoscale Convective Discussions]

ACUS11 KWNS 272240
SWOMCD
SPC MCD 272239 
MOZ000-TNZ000-ARZ000-MSZ000-280015-

MESOSCALE DISCUSSION 2478
NWS STORM PREDICTION CENTER NORMAN OK
0439 PM CST SUN NOV 27 2005

AREAS AFFECTED...ERN AR THROUGH SERN MO

CONCERNING...SEVERE THUNDERSTORM POTENTIAL 

VALID 272239Z - 280015Z

THREAT FOR SEVERE STORMS AND TORNADOES IS EXPECTED TO INCREASE
ACROSS ERN AR AND SERN MO THIS EVENING. A TORNADO WATCH WILL BE
ISSUED SHORTLY.

LINE OF DISCRETE TORNADIC SUPERCELLS IS CURRENTLY MOVING EWD THROUGH
CNTRL AR. THIS LINE WILL APPROACH THE ERN PART OF WW 876 BY 00Z.
INSTABILITY BECOMES MORE LIMITED WITH ERN EXTENT INTO ERN AR AND
SERN MO. HOWEVER...THETA-E ADVECTION ACCOMPANYING THE INTENSIFYING
LOW LEVEL JET WILL CONTRIBUTE TO EWD DESTABILIZATION WITH TIME. A
100+ KT MID LEVEL JET ROUNDING BASE OF UPPER TROUGH WILL SPREAD
THROUGH THE LOWER MS VALLEY...MAINTAINING STRONG DEEP LAYER SHEAR
AND LARGE LOW LEVEL HODOGRAPHS FAVORABLE FOR SUPERCELLS AND
TORNADOES.

..DIAL.. 11/27/2005

...PLEASE SEE WWW.SPC.NOAA.GOV FOR GRAPHIC PRODUCT...

ATTN...WFO...PAH...MEG...JAN...LSX...LZK...SGF...

33389243 35329235 37539066 36938940 34529051 33219177 

WWWW