Area Forecast Discussion
Issued by NWS Salt Lake City, UT

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FXUS65 KSLC 280325
AFDSLC

Area Forecast Discussion
National Weather Service Salt Lake City UT
925 PM MDT Mon Mar 27 2017

.SYNOPSIS...An upper trough will cross the region tonight through
Tuesday. A second storm is expected late Thursday into Saturday.

&&

.DISCUSSION...The latest in a series of progressive waves to cross
the forecast area is currently making its way through the eastern
Great Basin, with a closed circulation noted in satellite and
radar data rotating across south central Utah. Precipitation on
the back side of this low remains banked up along the I-15
corridor from roughly southern Salt Lake County southward to the
AZ border. As the upper low continues to slowly move east-
southeast and away from the forecast area overnight, expect
precipitation to gradually wind down from north to south tonight
through Tuesday morning. May be able to drop the going winter wx
advisory for the northern Wasatch and Wasatch Back shortly, as
snowfall has generally ended across these areas.

As the upper low pulls away, a northerly gradient coupled with
fairly strong 700mb cold advection will result in a favorable
set-up for gusty winds through the gaps of Washington County
overnight into Tuesday morning. A Wind Advisory remains in effect
for this area.

Updated earlier to lower PoPs for the northern valleys for the
remainder of the evening/overnight period. Will monitor
radar/satellite trends for a bit, and may be able to drop the
northern portion of the Winter Wx Advisory as well before
midnight.

&&

.AVIATION...Northerly winds will prevail at KSLC through the
overnight hours. CIGs are expected to remain VFR through the
night, with a 40 percent chance CIGs fall below 7 kft at times.

&&

.SLC WATCHES/WARNINGS/ADVISORIES...
UT...Winter Weather Advisory until 10 AM MDT Tuesday for UTZ006>010-
     517.

     Winter Weather Advisory until 4 AM MDT Tuesday for UTZ518.

     Wind Advisory from midnight tonight to noon MDT Tuesday for
     UTZ019.

WY...Winter Weather Advisory until 10 AM MDT Tuesday for WYZ021.

&&

$$

Seaman

For more information from NOAA`s National Weather Service visit...
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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