Area Forecast Discussion
Issued by NWS Salt Lake City, UT

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FXUS65 KSLC 271548

Area Forecast Discussion
National Weather Service Salt Lake City UT
948 AM MDT Tue Sep 27 2016

.SYNOPSIS...High pressure will continue to bring warm dry
conditions to the area today. A weak storm system moving up from
the south is expected to bring moisture back to the area starting
Wednesday and lingering into the weekend.


.DISCUSSION...Dry ridge conditions remain in place across UT this
morning with the high centered over nrn UT. A weak closed low
continues to spin over nwrn Mexico with moisture spreading north
from this low across AZ.

The ridge over nrn UT is forecast to break down and shift east
over the next 24 hours allowing the low to start to open up and
move north with the associated moisture spreading into srn UT. The
moisture reaches nrn UT Wed eve.

Convective forcing will be weak on Wed due to weak dynamics with
the opening wave and shorter days resulting in less daytime
heating. The best chance of rain looks to be in close proximity
to the opening wave over srn UT Wed night and nrn UT Thu morning.

Moisture however remains in place across the CWA thru Fri and
increasing upper support associated with a nrn branch trof
approaching the PacNW on Fri could give convection an assist that
aftn and again Sat.

Updated forecast earlier to delay the spread of clouds into srn UT
until tonight. No other changes made or planned at this time.


.AVIATION...Light southeasterly winds at the KSLC terminal are
expected to switch to northwest between 18-19z.





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