Area Forecast Discussion
Issued by NWS Salt Lake City, UT

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FXUS65 KSLC 231538
AFDSLC

Area Forecast Discussion
National Weather Service Salt Lake City UT
938 AM MDT SAT JUL 23 2016

.SYNOPSIS...Westerly flow will spread drier air across the eastern
Great Basin today. Strengthening high pressure aloft across the
region beginning Sunday will lead to very warm and generally dry
conditions across Utah next week.

&&

.DISCUSSION...Drier westerlies have spread across the CWA this
morning in the wake of the trof passing to our north. One last
portion of this trof passes today maintaining the dry westerlies.
Precipitable water imagery shows the moisture has been shunted
east with it only lingering in the eastern basins.

Somewhat cooler air has spread into the north and expect temps
today to run about 5-10 degrees below yesterday while the south
sees little change.

The drying should be sufficient to shut down convection over the
nrn mtns today altho still expect some flat cumulus to develop.
Isolated convective cells could form over the eastern slopes of
the central and srn mtns but this should be mostly weak and high
based.

A new trof is forecast to develop along the west coast tomorrow
and the flow over Ut backs around to swly but stays light. This
could start to bring a little moisture back into the south but
sufficient moisture for an increase in convection looks to hold
off until Mon.

Updated earlier to reduce sky cover most areas this morning and
eastern and srn valleys this aftn. Also added a mention of smoke
for this morning to the central and srn Wasatch Front.

&&

.AVIATION...Northwest winds will prevail at the KSLC terminal
through the day then switch to southeasterly between about 03-04z.
Smoke from the Antelope Island fire could occasionally drift
past the airfield but it will tend to thin out through 17-18z as
vertical mixing increases and vis should stay vfr.

&&

.SLC Watches/Warnings/Advisories...
UT...None.
WY...None.
&&

$$

Wilensky

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