[MCD] SWOMCD

Sun Aug 13 23:03:29 UTC 2006

ACUS11 KWNS 132305
SWOMCD
SPC MCD 132304 
ILZ000-IAZ000-MOZ000-140000-

MESOSCALE DISCUSSION 1812
NWS STORM PREDICTION CENTER NORMAN OK
0604 PM CDT SUN AUG 13 2006

AREAS AFFECTED...SERN IA...WCNTRL IL...NRN MO

CONCERNING...SEVERE THUNDERSTORM WATCH 718...

VALID 132304Z - 140000Z

...SEVERE THUNDERSTORM WATCH MAY BE REQUIRED SHORTLY FOR PORTIONS OF
THE MID MS VALLEY...

SW-NE ORIENTED QUASI-LINEAR THUNDERSTORM COMPLEX CONTINUES ITS ESEWD
PROPAGATION ACROSS SEVERE THUNDERSTORM WATCH 718.  THIS ACTIVITY
APPEARS TO BE INGESTING MODERATE INSTABILITY CHARACTERIZED BY
MODESTLY STEEP LAPSE RATES AND FAIRLY WARM TEMPERATURES...ESPECIALLY
ON SRN END.  DOWNSTREAM...A NARROW WEDGE OF YET TO BE OVERTURNED
BOUNDARY LAYER INSTABILITY EXISTS TO NEAR THE MS RIVER.  GIVEN THE
ORGANIZED STRUCTURE OF THIS ACTIVITY...IT APPEARS A CONTINUATION OF
THIS MCS...WITH EMBEDDED BOW-TYPE STRUCTURES WILL MOVE EAST OF
CURRENT WATCH. LOCALLY STRONG WINDS MAY ACCOMPANY THIS CONVECTION.

..DARROW.. 08/13/2006

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

ATTN...WFO...ILX...LSX...DVN...DMX...EAX...

39669405 41469163 41019020 39699108 39179228 

WWWW