SWOMCD
SPC MCD 142048
UTZ000-WYZ000-142215-
MESOSCALE DISCUSSION 2015
NWS STORM PREDICTION CENTER NORMAN OK
0348 PM CDT MON SEP 14 2009
AREAS AFFECTED...UT
CONCERNING...SEVERE THUNDERSTORM WATCH 741...
VALID 142048Z - 142215Z
THE SEVERE WEATHER THREAT FOR SEVERE THUNDERSTORM WATCH 741
CONTINUES.
SEVERE TSTM WATCH 741 CONTINUES UNTIL 00Z...WITH A PERSISTENT RISK
OF SEVERE WINDS/HAIL ACROSS PORTIONS OF UT.
MULTIPLE NORTH-SOUTH ORIENTED CONVECTIVE CLUSTERS CONTINUE TO
PROGRESS EASTWARD TOWARD/ACROSS THE I-15 CORRIDOR IN UT AHEAD OF AN
EASTWARD PROGRESSING UPPER TROUGH OVER NV. DERIVED WIND PROFILE DATA
FROM REGIONAL WSR-88D/S REFLECT AN INCREASE IN DEEP LAYER/NEARLY
UNIDIRECTIONAL SOUTHERLY FLOW SINCE THIS MORNING...WHICH WILL
CONTINUE TO FAVOR QUASI-ORGANIZED/ENE MOVING CONVECTIVE LINES
CAPABLE OF SEVERE WIND GUSTS AND HAIL. THE SEVERE THREAT SHOULD
GRADUALLY WANE ACROSS NORTHERN UT AS STORMS MOVE INTO THE HIGHER
TERRAIN...WHILE A SEVERE THREAT WILL LIKELY CONTINUE OVER THE NEXT
FEW HOURS ACROSS PORTIONS OF CENTRAL/SOUTHERN UT IN AN ENVIRONMENT
CHARACTERIZED BY MUCAPE UP TO 1000 J/KG AND MODERATELY STRONG SHEAR.
..GUYER.. 09/14/2009
...PLEASE SEE WWW.SPC.NOAA.GOV FOR GRAPHIC PRODUCT...
ATTN...WFO...GJT...SLC...
LAT...LON 41771272 41611118 40591013 38071005 37221111 37351289
37991361 39941372 40971343 41771272
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