Scientific Forecaster Discussion
fxus65 kslc 281555
Area forecast discussion
National Weather Service Salt Lake City Utah
955 am MDT sun may 28 2017
Synopsis...high pressure will slowly build across the region
through the remainder of the Holiday weekend, resulting in a
warming trend extending into the middle of the week.
Discussion...current forecast in good shape as the ridge builds
in over the Great Basin. Most models continue to show some
instability over the highest terrain late this afternoon into this
evening but there has been some backing off. Will continue with
current forecast of slight chance of showers and thunderstorms and
leave it at that.
The trend over the next few days will be for the ridge to move to
our east opening the door for some southerly flow to develop. This
southerly flow will tap some moisture resulting in an increase
of showers and thunderstorms as we move into mid week.
Hydrology...the ridge building over the area will bring with it
temperatures 10-15 degrees above normal which will increase the
snow melt across the high elevations. Rivers across northern Utah
will run fast and cold this week. Several rivers will approach or
go above bankfull by midweek, specifically the headwaters of the Weber
and Provo. Meanwhile, the Logan river is projected to go above
flood stage by Tuesday. See the latest Flood Watch statement
concerning the Logan river.
Aviation...northwest winds at the slc terminal will prevail
through about 04z tonight before shifting to the southeast. VFR
conditions will prevail today under sunny skies.
Utah...Flood Watch from Tuesday morning through Saturday evening for
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