SWOMCD
SPC MCD 062011
NEZ000-KSZ000-COZ000-062145-
MESOSCALE DISCUSSION 1937
NWS STORM PREDICTION CENTER NORMAN OK
0311 PM CDT THU SEP 06 2007
AREAS AFFECTED...NERN CO...NWRN KS...SCNTRL/CNTRL NEB
CONCERNING...SEVERE POTENTIAL...WATCH POSSIBLE
VALID 062011Z - 062145Z
INHIBITION HAS WEAKENED CONSIDERABLY ACROSS THE CNTRL HIGH PLAINS
FROM NERN CO INTO SWRN NEB...IMMEDIATELY AHEAD OF ADVANCING COLD
FRONT. THIS IS DUE MOSTLY TO THE VERY STEEP LAPSE RATES THAT HAVE
DEVELOPED WITHIN A NARROW WEDGE OF SUNNY SKIES. SOMEWHAT STRONGER
MID LEVEL FLOW...H5 SPEEDS ON THE ORDER OF 30-40KT...IS NOW
SPREADING OVER THE HIGH PLAINS...COINCIDENT WITH LEADING EDGE OF
FRONTAL BOUNDARY. IT APPEARS THIS INCREASE IN FLOW WILL ASSIST
ONGOING THUNDERSTORM DEVELOPMENT ACROSS NERN CO. LATEST THINKING IS
THUNDERSTORMS WILL CONTINUE TO EXPAND IN AREAL COVERAGE...BOTH ALONG
AND WITHIN POST-FRONTAL AIRMASS. SHEAR PROFILES SUGGEST A FEW
SUPERCELLS ARE POSSIBLE DESPITE THE RELATIVELY WEAK LOW LEVEL FLOW.
.DARROW.. 09/06/2007
..PLEASE SEE WWW.SPC.NOAA.GOV FOR GRAPHIC PRODUCT...
ATTN...WFO...GID...LBF...DDC...GLD...BOU...
39490378 39840227 40220083 41529956 40989848 38930020
38740358
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