SWOMCD
SPC MCD 210042
MOZ000-ARZ000-210215-
MESOSCALE DISCUSSION 2029
NWS STORM PREDICTION CENTER NORMAN OK
0742 PM CDT SAT AUG 20 2011
AREAS AFFECTED...SRN MO/NRN AR
CONCERNING...SEVERE THUNDERSTORM WATCH 793...
VALID 210042Z - 210215Z
THE SEVERE WEATHER THREAT FOR SEVERE THUNDERSTORM WATCH 793
CONTINUES.
MULTIPLE STORM MERGERS HAVE OCCURRED ACROSS WW793 WITHIN STRONG ZONE
OF INSTABILITY. NET RESULT HAS BEEN FOR A LOOSELY ORGANIZED MCS TO
EVOLVE ACROSS SRN MO/NRN AR WITH A GRADUALLY EXPANDING/SEWD SAGGING
COMPLEX THAT SHOULD SETTLE INTO THE SRN HALF OF THE WATCH OVER THE
NEXT FEW HOURS. GIVEN THAT THE STRONGEST INSTABILITY IS ALONG THE
SRN-WRN FLANK OF THIS ACTIVITY IT APPEARS THE GREATEST LONG TERM
SEVERE THREAT WILL FOCUS ACROSS NRN AR BY 02Z.
..DARROW.. 08/21/2011
...PLEASE SEE WWW.SPC.NOAA.GOV FOR GRAPHIC PRODUCT...
ATTN...WFO...PAH...MEG...LSX...LZK...SGF...TSA...
LAT...LON 37479343 37489106 35509117 35509345 37479343
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