Area Forecast Discussion
Issued by NWS Salt Lake City, UT
FXUS65 KSLC 171548
Area Forecast Discussion
National Weather Service Salt Lake City UT
948 AM MDT Mon Oct 17 2016
.SYNOPSIS...A Pacific storm system will exit the forecast area
today, with one last storm set to cross Utah and southwest Wyoming
on Tuesday. A ridge of high pressure will build over the region
for the latter half of the week.
.DISCUSSION...A Pacific storm system is making its way across
northern Utah and southwest Wyoming this morning, with the
associated front weakening near a KELY-KVEL line. Earlier,
precipitation (valley rain with snow above about 7000 feet) was
widespread along and behind the front. However, as the boundary
outruns the upper level support, precip is primarily confined to
the area along the front as well as the higher terrain behind it.
Seeing a well defined back edge over western Utah as the main
system lifts northeast. With the system exiting this afternoon,
coverage of precip will continue to noticeably diminish, with just
scattered coverage remaining over the higher terrain. Despite
decreasing clouds this afternoon, northern Utah maxes are still on
track to run up to 10F below seasonal normals behind the front.
Winds became quite gusty over some areas overnight and some gusts
in the 30s and 40s mph persist, primarily over northeast Utah.
Have allowed the going wind advisory to expire as remaining gusts
should remain below advisory criteria, but some breezy conditions
will continue through the afternoon.
The forecast area will see a relative lull in precipitation this
evening and overnight in between storm systems. However, the final
trough of the series is progged to make its way across the
forecast area tomorrow, bringing a reinforcing shot of colder air
as well as some additional precipitation for northern portions of
the forecast area, particularly over the higher terrain. With 700
mb temps expected to drop as low as -6C, snow levels could drop as
low as 6500 feet. Strong high pressure is still on track to move
into the region behind the last exiting storm system, resulting in
a warming and drying trend for the latter half of the week.
.AVIATION...VFR conditions are expected at the SLC terminal
through the TAF period with cigs remaining above 7000 ft.
Light northwest winds will increase by 18z and will prevail
through the afternoon before shifting back to southeast around
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