SWOMCD
SPC MCD 182000
KSZ000-NEZ000-COZ000-WYZ000-182200-
MESOSCALE DISCUSSION 1351
NWS STORM PREDICTION CENTER NORMAN OK
0300 PM CDT SUN JUL 18 2010
AREAS AFFECTED...SERN WY/NERN CO/NEB PANHANDLE
CONCERNING...SEVERE POTENTIAL...WATCH POSSIBLE
VALID 182000Z - 182200Z
WEAK STORMS ARE STARTING TO FORM ALONG THE CHEYENNE RIDGE IN SERN
WY. COVERAGE AND INTENSITY OF STORMS ARE EXPECTED TO INCREASE THIS
AFTERNOON AS THE ATMOSPHERE CONTINUES TO DESTABILIZE AND THE CAP
CONTINUES TO ERODE OVER THE PLAINS. CONVECTIVE TRENDS WILL BE
MONITORED FOR THE POSSIBILITY OF A WW.
STORMS ARE CURRENTLY DEVELOPING OVER HIGHER TERRAIN AND ARE EXPECTED
TO DEVELOP LATER IN REGIONS OF SURFACE CONVERGENCE ALONG THE
BACKDOOR COLD FRONT DRAPED N/S ACROSS THE HIGH PLAINS OF NERN
CO/SERN WY. MOIST SELY LOW-LEVEL UPSLOPE FLOW EAST OF THIS BOUNDARY
HAS RESULTED IN MLCAPE VALUES OVER 1000 J/KG ACROSS THE HIGH PLAINS
WITH 35 KTS OF DEEP LAYER SHEAR /PER THE NCNTRL CO PROFILER/. GIVEN
THE VEERING WIND PROFILE...SUPERCELLS WILL BE POSSIBLE WITH THE
THREAT OF LARGE HAIL AND DAMAGING WINDS.
..JIRAK.. 07/18/2010
...PLEASE SEE WWW.SPC.NOAA.GOV FOR GRAPHIC PRODUCT...
ATTN...WFO...LBF...GLD...BOU...CYS...
LAT...LON 42070495 42890464 42880343 42450288 41660224 41070181
40380136 39660120 39400203 39440255 39580298 40180369
41150480 42070495
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