Area Forecast Discussion
Issued by NWS Salt Lake City, UT

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FXUS65 KSLC 291722
AFDSLC

Area Forecast Discussion
National Weather Service Salt Lake City UT
1022 AM MST Tue Nov 29 2016

.SYNOPSIS...A cold northerly flow will continue through midweek.
The next storm system will arrive over the Great Basin late in the
week.

&&

.DISCUSSION...Water vapor satellite imagery this morning shows the
deep trough which brought snow showers across Utah yesterday,
sliding southeast into northeast New Mexico this morning with
subsident relatively dry air sweeping across western Utah. As the
trough axis swings southwest, conditions are unstable enough to
allow snow showers this morning across the mountains but will
taper off by mid-late afternoon. Winds are breezy over far
southwest Utah and down across Castle Country with gusts up to 30
mph, however the gradient should relax later today with the
departing trough.

With short-duration ridging building in from the west, expecting
a lull in winter weather activity over the next 24 hours before
the next trough drops down from the Gulf of Alaska on Thursday.
The next trough may not pose as much moisture content traveling
over terrain, but it should perform well with cold air aloft.
Some hints at a northern and central Utah/southwest Wyoming
focused precip swath and weaker baroclinic packing may keep this
trough more showery. The timing of this system could pose travel
difficulties with the afternoon/evening time frame for precip
along the Wasatch front.

Made minor updates to the current forecast for current trends for
PoP.

&&

.AVIATION...VFR conditions are expected at the KSLC terminal through
the TAF period.  North winds will continue through the afternoon at
the terminal and the switch to southeast winds is expected to
occur between 0200-0400 UTC. There is a 10 percent chance that the
switch to southeast winds will hold off until after 0400 UTC.


&&

.SLC WATCHES/WARNINGS/ADVISORIES...
UT...None.
WY...None.
&&

$$

Dewey/Graham

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