Area Forecast Discussion
Issued by NWS Salt Lake City, UT

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FXUS65 KSLC 190443

Area Forecast Discussion
National Weather Service Salt Lake City UT
943 PM MST Sun Feb 18 2018

.SYNOPSIS...A winter storm will impact much of Utah through early
Tuesday. Another weather disturbance is possible late in the


.DISCUSSION...Active winter storm is ongoing across the CWA, with
a decent snow band setting up across the central Wasatch Front at
the moment. A large and very cold Pacific trough is currently
located across the Pacific Northwest. This trough will continue to
dig southeastward through the overnight period. The most
preferential jet dynamics for heavier precipitation continue to
set up across roughly southern Salt Lake County southward and as
the jet shifts eastward, precipitation should gradually dissipate
in intensity.

Expect a second round of snow for the west desert to the central
Wasatch front early Monday morning into Monday afternoon.

Current reports indicate near to a bit over a foot of snow has
fallen across the Cache Valley. So far, amounts have been largely
under 3 inches across most of the Wasatch Front.

Updated the forecast to adjust winds towards current trends and to
decrease additional accumulations north of the snow band across
the far northern Wasatch Front and the Cache Valley. Kept the
going winter headlines and allowed the wind advisory for southern
Utah to expire. Will continue to monitor trends for additional


.AVIATION...Steady snowfall will continue at the SLC terminal
through at least 06Z, bringing primarily IFR conditions to the
terminal, with LIFR conditions also possible. Snow may become more
showery after 06Z, but periods of IFR snow are still likely through
at least 18Z Monday. Total snow accumulation on untreated surfaces
is expected to be 1 to 3 inches through 10Z, with additional
accumulation possible after that.


UT...Winter Storm Warning until 4 PM MST Monday for UTZ006-008>010.

     Winter Storm Warning until 5 AM MST Monday for UTZ001-002-007.

     Winter Weather Advisory until 5 AM MST Monday for UTZ005.

     Winter Storm Warning until noon MST Monday for UTZ003-004.

     Winter Storm Warning until 9 PM MST Monday for UTZ014>016-517-

WY...Winter Storm Warning until noon MST Monday for WYZ021.




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