[MCD] SWOMCD

[MCD at goshenarc.org]

ACUS11 KWNS 301215
SWOMCD
SPC MCD 301214 
UTZ000-301345-

MESOSCALE DISCUSSION 1072
NWS STORM PREDICTION CENTER NORMAN OK
0714 AM CDT MON MAY 30 2005

AREAS AFFECTED...PORTIONS N-CENTRAL UT

CONCERNING...SEVERE THUNDERSTORM POTENTIAL 

VALID 301214Z - 301345Z

ISOLATED SEVERE TSTMS POSSIBLE THROUGH 15Z ACROSS I-15 CORRIDOR FROM
SLC SWD TOWARD EXTREME ERN JUAB COUNTY.  MOST INTENSE ACTIVITY IS
SMALL BAND OF POTENTIALLY SEVERE TSTMS OVER ERN TOOELE COUNTY. THIS
CONVECTION IS EXPECTED TO CONTINUE MOVING NEWD TOWARD SLC AREA 20-25
KT...WITH SOME ACCELERATION POSSIBLE.  OTHER TSTMS MAY DEVELOP
FARTHER S ALONG LEADING EDGE OF COLD CORE REGION OF UPPER
LOW...WHERE STRONG LARGE SCALE ASCENT IS STEEPENING MIDLEVEL LAPSE
RATES. MOISTURE CHANEL IMAGERY INDICATES LOW MOVING FROM ERN NV
INTO WRN UT ATTM...AND ASSOCIATED DPVA FIELD WILL OVERSPREAD MORE OF
CENTRAL/NRN UT AS MORNING PROGRESSES.

BOUNDARY LAYER AIR MASS WILL REMAIN RELATIVELY STABLE FOR ANOTHER
FEW HOURS OVER LOWER ELEVATIONS W OF WASATCH FRONT...INDICATING MAIN
THREAT THERE WILL BE LARGE HAIL.  A FEW POTENTIALLY DAMAGING
CONVECTIVE GUSTS ARE POSSIBLE AT HIGHER ELEVATIONS -- ABOVE ROUGHLY
6000 FT -- WHEN ACTIVITY MOVES INTO TERRAIN THAT EXTENDS UPWARD INTO
MOST UNSTABLE LAYER.  PENDING OBSERVED SLC RAOB...MODIFIED RUC
SOUNDINGS INDICATE ELEVATED MUCAPE 250-400 J/KG...ROOTED IN 600-650
MB PRESSURE LAYER.  30-40 KT SHEAR IS EVIDENT THROUGH CLOUD BEARING
LAYER...AND HAIL THREAT IS ENHANCED WITH MIDLEVEL ROTATION IN ANY
TSTMS.

..EDWARDS.. 05/30/2005

...PLEASE SEE WWW.SPC.NOAA.GOV FOR GRAPHIC PRODUCT...

ATTN...WFO...SLC...

39271207 39661224 40281237 40751217 40971197 41061173
41021153 40841147 40361139 39841151 39431170 

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