Area Forecast Discussion
Issued by NWS Salt Lake City, UT

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000
FXUS65 KSLC 180230
AFDSLC

Area Forecast Discussion
National Weather Service Salt Lake City UT
830 PM MDT Sat Jun 17 2017

.SYNOPSIS...High pressure will build over the Great Basin
beginning Sunday, bringing very hot and dry weather to the region
beginning Monday and continuing through late in the week.

&&

.DISCUSSION...An elongated mid level ridge stretches from the
central CA coast east-southeastward into the Desert Southwest this
evening, maintaining a northwesterly flow aloft across the
forecast area. The residual surface trough associated with the
frontal boundary which pushed through most of the forecast area
overnight through this morning currently stretches from northern
AZ back into far southwestern UT north of St George.

The mid level ridge axis is forecast to begin building eastward
across the Great Basin tomorrow, then amplify across the region
into the early portion of the upcoming week. This will bring hot
to very hot temperatures to the area, with lower elevations of
southern UT including the St George area exceeding the 110F mark
by Monday. Going heat products cover this well.

Updated evening sky cover to account for satellite trends.
Otherwise going forecast looks to be in good shape.

&&

.AVIATION...Northerly winds at KSLC will shift back to the south
by 06Z, with a 30 percent chance this wind shift occurs as early
as 04Z. VFR conditions will prevail through the period.

&&

.SLC WATCHES/WARNINGS/ADVISORIES...
UT...Heat Advisory from noon Monday to 10 PM MDT Thursday for UTZ013-
     020.

     Excessive Heat Warning from noon Monday to 10 PM MDT Thursday
     for UTZ019-021.

WY...None.
&&

$$

Seaman

For more information from NOAA`s National Weather Service visit...
http://weather.gov/saltlakecity

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



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