SWOMCD
SPC MCD 112135
KSZ000-NEZ000-COZ000-WYZ000-112230-
MESOSCALE DISCUSSION 1521
NWS STORM PREDICTION CENTER NORMAN OK
0435 PM CDT SAT JUL 11 2009
AREAS AFFECTED...NERN CO...SERN WY...NEB PANHANDLE...NWRN KS
CONCERNING...SEVERE POTENTIAL...WATCH LIKELY
VALID 112135Z - 112230Z
CONSIDERABLE NUMBER OF SHOWERS AND THUNDERSTORMS HAVE DEVELOPED
BENEATH UPPER RIDGE OVER THE HIGHER TERRAIN OF CO...LIKELY IN
ASSOCIATION WITH WEAK SHORTWAVE TROUGH THAT IS MASKED WITHIN BROADER
ANTICYCLONIC FLOW ALOFT. ACTIVITY IS NOW SPREADING/DEVELOPING EAST
ALONG THE PALMER DIVIDE SE OF DENVER AND SHOULD BEGIN INGESTING VERY
MOIST/BUOYANT AIRMASS CHARACTERIZED BY MLCAPE ON THE ORDER OF
2000-4000 J/KG. WITH DEEP ELY FLOW ACROSS THE CNTRL HIGH PLAINS IT
SEEMS REASONABLE THAT A CONTINUED UPWARD TREND WILL BE NOTED WITH
THIS ACTIVITY...LIKELY INTO MULTIPLE MCS-TYPE CLUSTERS. INCREASING
CU FIELD ALONG THE LARAMIE RANGE SUGGESTS TSTMS WILL SOON DEVELOP
ACROSS SERN WY AS WELL. WW WILL BE ISSUED SOON TO ACCOUNT FOR THIS
EVOLUTION.
..DARROW.. 07/11/2009
...PLEASE SEE WWW.SPC.NOAA.GOV FOR GRAPHIC PRODUCT...
ATTN...WFO...LBF...GLD...PUB...BOU...CYS...
LAT...LON 38940491 41470534 42770465 42470259 39740086 38280150
38940491
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