Area Forecast Discussion
Issued by NWS Salt Lake City, UT

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FXUS65 KSLC 210331

Area Forecast Discussion
National Weather Service Salt Lake City UT
931 PM MDT Tue Aug 20 2019

.SYNOPSIS...High pressure over the region will result in continued
warm and dry conditions Wednesday before a slight cooling trend
is expected for late week.


.DISCUSSION...A mean longwave ridge is in place this evening across
the Rocky Mountain through Great Plains region, with an upper low
over the Pacific Northwest coast. Between these two features, Utah
remains under a warm and dry southwest flow aloft. Another quiet
night is in store for the area under mostly clear skies and
generally light surface winds.

The ridge will flatten for the latter half of the week as the
upstream low opens up into a progressive shortwave trough which will
cross the northwestern CONUS. After another very warm day tomorrow,
temperatures are expected to cool a bit by Thursday across northern
Utah behind a weak cold front. Otherwise, with winds turning more
westerly/northwesterly with the ridge position shifting west of the
area, dry air will remain in place into the weekend.

No updates this evening.


.AVIATION...South winds are expected to return to the KSLC
terminal after around 04z. VFR conditions are expected to prevail
through the night.





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