Scientific Forecaster Discussion
Area forecast discussion
National Weather Service Salt Lake City Utah
1013 am MDT Thursday Aug 28 2014
Synopsis...high pressure will build over the region today then
shift east late Friday. A cold front will cross northern Utah
Saturday then stall across central Utah on Sunday.
Discussion...an exiting trough is delivering a confident
northwest flow to the state today along with a drier...warmer and
more stable airmass. A few clouds remained in northeastern
Utah this morning and patchy fog developed in areas of the Heber
Valley and Uinta Basin. Updated the morning weather grid to
reflect fog in the latter area. Skies across the state should be
clear today except for some modest cumulus over the high terrain.
A building ridge to the west begins to flatten over the state
by this evening...ushering in more westerly upper level winds and
further advecting warm air into the region. A trough nudges into
northern Utah Saturday...with the NAM showing an associated
surface boundary oozing into the northwest corner early Saturday
afternoon with some convective forcing...but little moisture. A
secondary short wave entering Utah Saturday evening enhances the
potential for precipitation across northern locales. This wave
further trajects the colder air southward through the
state...waning before affecting southern Utah temperatures. Dry air
returns to the state on Sunday...initiating a gradual return to
seasonal by Tuesday.
Aviation...the slc terminal will see VFR conditions with mostly
clear skies through the morning. Southeast winds are expected to
shift to the northwest between 17z and 19z.
For more information from National oceanic and atmospheric administration/S National Weather Service visit...
http://weather.Gov/saltlakecity (all lower case)
For frequently asked questions about the area forecast discussion
http://weather.Gov/saltlakecity/general/afd_faqs.Php (all lower case)