SWOMCD
SPC MCD 131953
NEZ000-SDZ000-COZ000-WYZ000-132200-
MESOSCALE DISCUSSION 1208
NWS STORM PREDICTION CENTER NORMAN OK
0253 PM CDT MON JUN 13 2011
AREAS AFFECTED...ERN WY/NERN CO...WRN NEB
CONCERNING...SEVERE POTENTIAL...WATCH POSSIBLE
VALID 131953Z - 132200Z
STORMS ARE LIKELY TO FORM ACROSS SERN WY INTO N CNTRL CO LATER THIS
AFTERNOON...SPREADING EWD INTO WRN NEB. THESE STORMS WOULD HAVE A
HAIL AND WIND THREAT...AND A WATCH COULD BE NEEDED EVENTUALLY.
VIS IMAGERY SHOWS SUBSTANTIAL CU FIELDS OVER THE HIGHER
TERRAIN...AHEAD OF AN UPPER LEVEL DISTURBANCE MOVING INTO WRN WY.
DEWPOINTS DOWNSTREAM ARE ONLY IN THE 30S AND 40S F...BUT STEEPENING
LOW TO MID LEVEL LAPSE RATES WILL RESULT IN MODERATE DESTABILIZATION
OVER THE NEXT FEW HOURS.
AS LOW PRESSURE DEEPENS OVER SERN CO...LOW LEVEL ELY WINDS WILL
INCREASE OVER THE HIGH PLAINS. WITH 25-30 KT MID LEVEL
FLOW...HODOGRAPHS WILL BE MAINLY STRAIGHT LINE WITH A FEW SPLITTING
CELLS PRODUCING HAIL POSSIBLE AS STORMS FORM OVER THE HIGH TERRAIN
AND MOVE EWD. EVAPORATION POTENTIAL WILL BE LARGE AND MERGING OF
STORMS/OUTFLOWS MAY RESULT IN A LOCALIZED DAMAGING WIND THREAT.
ELSEWHERE...CIN HAS LARGELY ERODED FROM CNTRL SD INTO W CNTRL
NEB...ON THE WRN EDGE OF ERODING STRATUS AND NEAR A DIFFERENTIAL
HEATING BOUNDARY. WEAK CONVERGENCE HERE MAY ALLOW FOR AT ISOLATED
STORMS WITH MAINLY A HAIL THREAT.
..JEWELL.. 06/13/2011
...PLEASE SEE WWW.SPC.NOAA.GOV FOR GRAPHIC PRODUCT...
ATTN...WFO...ABR...LBF...UNR...GLD...BOU...CYS...
LAT...LON 42930328 43000261 43220139 43920045 44239977 43849939
43309982 41750101 40560153 40300261 40220395 40200520
40530541 40970522 41320507 41910505 42770552 42870487
42930328
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