[MCD] SWOMCD

[MCD at goshenarc.org]

ACUS11 KWNS 260307
SWOMCD
SPC MCD 260307 
UTZ000-AZZ000-NVZ000-260800-

MESOSCALE DISCUSSION 1475
NWS STORM PREDICTION CENTER NORMAN OK
1007 PM CDT SAT JUN 25 2005

AREAS AFFECTED...SERN NV / SWRN UT / NWRN AZ

CONCERNING...WIND SHIFT 

VALID 260307Z - 260800Z

A WEAK COLD FRONT WILL CAUSE WINDS TO SHIFT TO WLY THEN NWLY LATER
THIS EVENING. ABRUPT DIRECTIONAL CHANGE OF 30-40 DEGREES WILL BE
LIKELY...WITH WINDS FINALLY BECOMING LIGHT NWLY DURING THE EARLY
MORNING.

VISIBLE SATELLITE IMAGERY REFLECTS MID LEVEL VORTICITY MAXIMUM
MOVING ACROSS SOUTH CENTRAL NV WITH CLOUD SHIELD EXPANDING EWD. AT
THE SURFACE...COOLER TEMPERATURES EXIST BEHIND A WEAK COLD FRONT.
GIVEN SURFACE PRESSURE GRADIENT/DIFFERENTIAL BETWEEN COOLER AIR MASS
IN ASSOCIATION WITH CLOUD COVER/VORT MAX AND SFC THERMAL TROUGH OVER
ERN NV...EXPECT WINDS TO SHIFT DURING THE NEXT FEW HOURS. WIND
SPEEDS ARE UNLIKELY TO BE STRONG WITH THIS WIND SHIFT...AS LOW LEVEL
AIR MASS BEGINS TO DECOUPLE. HOWEVER...VEERING WINDS MAY CAUSE
TROUBLE IN VICINITY OF ONGOING FIRES.

..JEWELL.. 06/26/2005

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

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

37961347 36661357 36251442 36801502 37871482 38301458
38181397 

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