SWOMCD
SPC MCD 162224
IDZ000-UTZ000-NVZ000-170000-
MESOSCALE DISCUSSION 1498
NWS STORM PREDICTION CENTER NORMAN OK
0524 PM CDT MON JUL 16 2007
AREAS AFFECTED...PARTS OF NE NV...SRN ID AND NW UT
CONCERNING...SEVERE POTENTIAL...WATCH UNLIKELY
VALID 162224Z - 170000Z
DIVERGENT UPPER FLOW FIELD ASSOCIATED WITH A WEAK MID-LEVEL IMPULSE
NOW LIFTING NORTH OF THE GREAT BASIN TOWARD THE NORTHERN ROCKIES
HAS AIDED CONSIDERABLE CONVECTIVE DEVELOPMENT ACROSS THE HIGHER
TERRAIN OF NORTHEASTERN NEVADA THROUGH SOUTHERN IDAHO. GENERALLY
LOW BOUNDARY LAYER MOISTURE LEVELS ARE LIMITING CAPE AND UPDRAFT
STRENGTH...AND INCREASING MID/HIGH LEVEL CLOUDINESS WILL BEGIN TO
RESTRICT ADDITIONAL SURFACE HEATING...BUT LARGE-SCALE FORCING MAY
STILL PROMOTE THE EVOLUTION OF A CONSOLIDATING CLUSTER OF STORMS
THROUGH THE 17/00-02Z TIME. AS THIS OCCURS...AND PERHAPS ENHANCED
BY MODERATE STORM MOTIONS ASSOCIATED WITH 25-30 KT MID/UPPER FLOW
..SUB-CLOUD EVAPORATIVE COOLING IN A DEEPLY MIXED BOUNDARY LAYER
COULD BECOME SUFFICIENT FOR STRONG GUSTY SURFACE WINDS...
PARTICULARLY AS ACTIVITY DEVELOPS NORTH OF THE MOUNTAINS THROUGH THE
UPPER SNAKE RIVER VALLEY.
.KERR.. 07/16/2007
..PLEASE SEE WWW.SPC.NOAA.GOV FOR GRAPHIC PRODUCT...
ATTN...WFO...SLC...PIH...BOI...LKN...
42711583 43441494 44041340 43931182 42411128 41661204
41021376 40891506 41681608
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