Area Forecast Discussion
Issued by NWS Salt Lake City, UT

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FXUS65 KSLC 140217

Area Forecast Discussion
National Weather Service Salt Lake City UT
817 PM MDT Sun Aug 13 2017

.SYNOPSIS...A cold front will move into northern Utah Monday then
stall across central Utah on Tuesday. A warming trend will follow
for the remainder of the week.


.DISCUSSION...An upper trough along the west coast is inducing a
mean west-southwest flow aloft downstream across the Great
Basin/Intermountain West region. As a result moisture continues to
thin across the forecast area, and is largely confined to the mid
levels across the north, with lingering boundary layer moisture
remaining in place across Washington County. Convection this
evening has been on the downward swing owing to the loss of
daytime heating, and lack of upper support. As a result have
updated the forecast to remove PoPs from the north, while
maintaining slight chances in the south.

A shortwave trough digging along the back side of the larger scale
Pacific trough is noted near 130W this evening, and is forecast
to translate through the Great Basin on Monday, pushing a cold
front into northern Utah during the afternoon hours. Southwesterly
flow ahead of this front will act to further dry the airmass
across the forecast area, with convection expected both along and
behind the frontal boundary Monday afternoon and evening primarily
across northern Utah.


.AVIATION...Southerly winds with VFR conditions are expected at
KSLC through the evening and overnight hours. South winds are
expected to become gusty mid to late morning Monday.


UT...Red Flag Warning from noon to 8 PM MDT Monday for UTZ497.




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