Area Forecast Discussion
Issued by NWS Salt Lake City, UT

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FXUS65 KSLC 081646

Area Forecast Discussion
National Weather Service Salt Lake City UT
946 AM MST Fri Dec 8 2017

.SYNOPSIS...Strong high pressure will remain in place through at
least the middle of next week.


.DISCUSSION...The strong mid level ridge remains centered just
inland from the west coast this morning with a dry northerly flow
aloft over UT. The surface high is centered over the northern
Great Basin with a northerly gradient across srn UT with local
gusty winds thru the gaps in Washington Co. Strong inversions are
present across the valleys of UT except the far south. Morning fog
in the Cache valley should burn off by midday but expect it to
reform again tonight.

The airmass aloft has warmed overnight with H7 temps at SLC rising
from -5C at 00z to -1C at 12z. This has served to strengthen the
lid on the valley inversions. A little additional warming is
forecast thru today with H7 temps then forecast to hover around +1
or +2C over the weekend into next week.

Little change in this pattern is expected thru the first part of
next week with the mid level ridge remaining centered to our west
and a strong surface high centered across nrn UT. Valley
inversions will remain well established with a continued gradual
build up of haze and deteriorating air quality in the urban

No updates planned at this time.


.AVIATION...The KSLC terminal will see minimal weather concerns
through the TAF period. Light winds will switch to the northwest
between 17z-19z under clear skies, and back to the southeast by
03z-04z. Some haze development may reduce visibility but should
remain above 7SM.





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