Area Forecast Discussion
Issued by NWS Salt Lake City, UT

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386
FXUS65 KSLC 241700
AFDSLC

Area Forecast Discussion
National Weather Service Salt Lake City UT
1000 AM MST Tue Jan 24 2017

.SYNOPSIS...A cold northwest flow will remain over the area through
Thursday. Strong high pressure aloft will lock in over the west
coast states for late in the week and on through the upcoming
weekend.

&&

.DISCUSSION...Per morning analysis of satellite and radar trends,
the surface low over southern Idaho is sinking southward into
northern Utah. Under northwest flow aloft, albeit light, and some
moisture in the mid levels, some light snow showers were noted
this morning across valleys and mountain valleys of northern Utah,
creating some road impacts. Even a bit of lake enhancement is
noted on the radar as these showers train across northwest Utah
into the Wasatch front. Orographically induced snow showers along
the Wasatch Front and the mountains should persist through the
day, however remain mostly light in accumulation. The current
advisories will remain in place as there is anticipated impact
for tonight`s evening commute for north of Salt Lake City.

Forecast models advertise another wave to drop southward tonight
into Wednesday and coincident QPF values are painted across
northern Utah southward into the mountains and down the Wasatch
front through mid- day. The next forecast challenge will be to
assess how the next wave plays into road impacts continuing into
Wednesday.

Made some morning updates to the current forecast regarding precip
chances through tonight.


&&

.AVIATION...The SLC terminal will see brief periods of MVFR or
IFR conditions in light snow showers through today, but snow
should not become steady for more than about 30 minutes at a time
until after 03Z. Northerly winds are expected through most of
today, but brief periods of light and variable winds will occur
because of nearby showers.

&&

.SLC WATCHES/WARNINGS/ADVISORIES...
UT...Winter Weather Advisory until 10 PM MST this evening for UTZ001-
     002-005-007.

WY...None.
&&

$$

Dewey/Shoening

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http://weather.gov/saltlakecity

For frequently asked questions about the Area Forecast Discussion
visit...
http://weather.gov/saltlakecity/general/afd_faqs.php



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