Area Forecast Discussion
Issued by NWS Salt Lake City, UT

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FXUS65 KSLC 180346
AFDSLC

Area Forecast Discussion
National Weather Service Salt Lake City UT
946 PM MDT Tue Apr 17 2018

.SYNOPSIS...High pressure will build across the region through
midweek, followed by the next storm system late in the week.

&&

.DISCUSSION...Heights have been rising this evening and will
continue to do so through the night as an upper ridge builds into
the area behind the departing storm system. With the loss of daytime
heating along with large-scale subsidence, showers have tapered off
and skies cleared fairly quickly this evening. However, with a cold
airmass still in place (700mb temperature of -10C at SLC per the 00z
sounding), the clear skies will allow for excellent radiative
cooling. As a result, expect colder overnight mins compared to last
night across many areas. Some of the typically colder valleys will
see overnight mins below freezing. A Hard Freeze Warning is in
effect for several of these colder spots where the average growing
season would have already commenced. Otherwise, high pressure will
keep quiet weather across the area tomorrow with temperatures
trending warmer.

Made minor updates to the forecast mainly to clear out most
of the lingering cloud cover for the rest of the evening.

&&

.AVIATION...The SLC terminal will see VFR conditions through the
night under clearing skies. Southeast winds are expected to become
established between 04-05z.

&&

.SLC WATCHES/WARNINGS/ADVISORIES...
UT...Hard Freeze Warning until 9 AM MDT Wednesday for
     UTZ001-002-005-013.

WY...None.
&&

$$

Cheng

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For frequently asked questions about the Area Forecast Discussion
visit...
http://weather.gov/saltlakecity/general/afd_faqs.php


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