Area Forecast Discussion
Issued by NWS Salt Lake City, UT

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FXUS65 KSLC 031709

Area Forecast Discussion
National Weather Service Salt Lake City UT
1009 AM MST Sat Dec 3 2016

.SYNOPSIS...A cool northwest flow will prevail through early
Sunday. The next cold upper trough will cross the area during the
first half of the upcoming week, bringing the coldest temperatures
of the season thus far.


.DISCUSSION...A cool and somewhat moist northwest flow aloft
exists across northern Utah this morning. Fairly strong low level
warm advection will generate some lift into the far northern
mountains through around mid-afternoon. The generated lift and
moisture are relatively shallow, so any precip that does develop
will remain on the light side today.

The mean layer flow aloft will turn more westerly late tonight and
Sunday ahead of the next Pacific trough scheduled to arrive in
Utah Late Sunday night/Monday. Ahead of this feature moist low
level warm advection will develop with mid-level cooling above
creating sufficient lift to generate precip across the far
northern portion of Utah, with accumulating snows for the northern
Wasatch range.

The passing trough late Sunday night/Monday will press precip
farther to the south and expand the areal extent of this precip
during the day Monday. Substantially colder air will also pour
south through northern/central Utah, with a baroclinic zone
setting up over central Utah and becoming the focus for snow by
Monday afternoon.

Will issue and update to adjust cloud cover, otherwise current
short term forecast looks to be on track.


.AVIATION...Ceilings between 5000-6000 feet AGL are expected to
continue at the SLC terminal through the day. Southerly winds are
expected continue, becoming light and somewhat variable between 18-
20Z. Winds are expected to eventually become predominately
northwest, though light after 19-20Z.





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