SWOMCD
SPC MCD 061940
COZ000-NEZ000-SDZ000-WYZ000-062115-
MESOSCALE DISCUSSION 1457
NWS STORM PREDICTION CENTER NORMAN OK
0240 PM CDT MON JUL 06 2009
AREAS AFFECTED...SERN WY/N CENTRAL AND NERN CO/WRN NEB PNHDL
CONCERNING...SEVERE POTENTIAL...WATCH POSSIBLE
VALID 061940Z - 062115Z
CONVECTION INCREASING ACROSS THE CENTRAL ROCKIES MAY REQUIRE WW
ISSUANCE WITHIN THE MD AREA IN THE NEXT HOUR OR SO.
DAYTIME HEATING COMBINED WITH THE NWWD SPREAD OF UPPER 50S TO LOW
60S SURFACE DEWPOINTS HAVE RESULTED IN THE DEVELOPMENT OF AROUND
1000 J/KG MIXED-LAYER CAPE ACROSS THE HIGH PLAINS. STORMS CONTINUE
TO DEVELOP OVER THE HIGHER TERRAIN OF THE CENTRAL ROCKIES...AHEAD OF
A SHORT-WAVE TROUGH CROSSING WRN MT/WRN WY/NERN UT ATTM. WHILE
LESSER INSTABILITY SHOULD LIMIT THE THREAT OVER THE HIGHER
TERRAIN...STORMS SPREADING OFF THE HIGHER TERRAIN INTO THE MORE
MOIST/UNSTABLE LOW-LEVEL AIRMASS OVER HIGH PLAINS SHOULD
INTENSIFY/BECOME LOCALLY-SEVERE. LARGE HAIL AND LOCALLY-DAMAGING
WINDS CAN BE EXPECTED WITH THE STRONGER CELLS.
..GOSS.. 07/06/2009
...PLEASE SEE WWW.SPC.NOAA.GOV FOR GRAPHIC PRODUCT...
ATTN...WFO...UNR...GLD...PUB...BOU...CYS...RIW...GJT...
LAT...LON 38860507 39140601 40180698 42040706 43270517 43280414
40720287 38940308 38860507
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