Area Forecast Discussion
Issued by NWS Salt Lake City, UT

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FXUS65 KSLC 170333
AFDSLC

Area Forecast Discussion
National Weather Service Salt Lake City UT
933 PM MDT Sat Sep 16 2017

.SYNOPSIS...A warming trend will develop for Sunday into Monday. The
next cold front will cross northern and central Utah Tuesday,
bringing some precipitation to northern Utah and southwest Wyoming
along with a noticeable drop in temperatures.

&&

.DISCUSSION...The flow aloft is turning more southwesterly this
evening across the forecast area as an upstream trough comes ashore.
High clouds ahead of this trough has spread into northern Utah,
while earlier flat cumulus over the southern mountains have started
to dissipate. The high clouds will help moderate overnight mins a
bit across the north, but since highs were not very warm to begin
with, many valleys have already fallen into the 50s.

The trough will weaken as it crosses the interior west tonight and
tomorrow and as a result will have little effect on the area.
Temperatures will continue to warm under a southwesterly 700mb flow
as a result, with little if any in the way of precipitation. Winds
will increase on Monday ahead of a cold front which is expected to
arrive on Tuesday.

Made minor updates to increase sky cover across the north and to
lower overnight mins across some of the higher peaks which have
already fallen below forecast.

&&

.AVIATION...Due to a northerly pressure gradient, southerly winds
will be slower to develop this evening, closer to 05-06z. Otherwise,
expect VFR conditions through the night with high CIGS.

&&

.SLC WATCHES/WARNINGS/ADVISORIES...
UT...None.
WY...None.
&&

$$

Cheng

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