Area Forecast Discussion
Issued by NWS Salt Lake City, UT

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FXUS65 KSLC 030324

Area Forecast Discussion
National Weather Service Salt Lake City UT
824 PM MST Fri Dec 2 2016

.SYNOPSIS...A cold upper trough will exit the area tonight. High
pressure will move over the region tonight into Sunday. A colder
upper trough will slowly cross the area through the first half of
the upcoming week.


.DISCUSSION...Have made some minor updates to the forecast
package for tonight. Have reduced the amount of sky cover from
about west central Utah northeast to southwest Wyoming. Under
this swath of clear skies the temperatures have dropped quickly in
the more rural areas. Have lowered min temps accordingly. Have
also lowered temps in the southwest and south central areas where
clouds have been dissipating this evening and should dissipate
completely after midnight.

Winds have been abating some north of the Pine Valley mountains and
any sheltered areas should see a downward spike towards daybreak
as winds relax even more and skies clear. These min temp forecasts now
are closer to the MOS guidance which adds some confidence in this
decision to lower.

Winds continue to meet advisory levels at Badger Spring on the
downslope side of the Beaver Dam Mountains in Washington County.
However, elsewhere in Washington County the winds have been just
below advisory levels but close enough to leave the wind advisory
in effect through the night. The models show the surface gradient
remaining pretty constant through the night while the 700 mb winds
don`t become an enhancing factor until very late tonight at just
about the time the surface gradient begins to weaken. Anticipate
another breezy to windy day across the portions of Washington
County through Saturday as these 700mb winds mix down to the
surface but probably fall shy of advisory levels.

Across northwest utah have raised temps a tad to account for the
increase of mid and high clouds after midnight.


.AVIATION...VFR conditions will prevail at the KSLC terminal
tonight. There will be a chance of lower clouds/ceilings below 7k
feet tomorrow starting around 16-18Z. Light northerly winds will
switch to southerly around 04-06Z.


UT...Wind Advisory until 10 AM MST Saturday for UTZ019.




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