Area Forecast Discussion
Issued by NWS Salt Lake City, UT

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FXUS65 KSLC 260347

Area Forecast Discussion
National Weather Service Salt Lake City UT
947 PM MDT Wed Apr 25 2018

.SYNOPSIS...High pressure will bring very warm temperatures to the
area through Friday. A low pressure system over the eastern
Pacific will move east into the Great Basin Sunday, then track
slowly through the region early next week.


.DISCUSSION...The residual mid/high clouds behind the shortwave
moving southeast along the continental divide in Wyoming will
exits the area late tonight. Strong high pressure aloft will
settle over Utah for the end of the week. Exceptionally warm
temperatures will exist both Thursday and Friday. Some potential
for moisture working north into southwest Utah ahead of the
eastern Pacific low Friday. Strong differential heating could take
this moisture and generate a few convective showers across the
southern/central Utah mountains during the late afternoon and
evening on Friday.

The well defined eastern Pacific upper low will finally move
inland early Saturday, then drift into the western Great Basin
late Saturday. This feature will take on a slight negative-tilt
with the southern portion rotating northeast across western/northern
Utah Saturday night/early Sunday. The best thermal/dynamic support
for convection will likely remain across northwest Utah overnight.
This convection will expand south and east Sunday night/Monday as
the main trough turns east across the northern Rockies/northern
Great Basin.

No updates planned this evening.


.AVIATION...High pressure aloft across northern Utah will
maintain VFR conditions under mostly clear skies through Thursday.
Light southeast winds will develop between 04z and 05z and
persist through Thursday morning.





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