869 
FXUS65 KSLC 090458
AFDSLC

Area Forecast Discussion
National Weather Service Salt Lake City UT
957 PM MST Fri Mar 8 2019

.SYNOPSIS...A few lingering snow showers will continue tonight as a 
weak disturbance crosses the area. The next storm system will track 
east across the Desert Southwest early next week, bringing 
precipitation to mainly the southern and western portions of the 
state.

&&

.DISCUSSION...The shortwave trough that brought the latest round of 
precipitation to the area is already exiting into Colorado and is 
being replaced by a weak shortwave ridge. However, this ridge will 
quickly shift east of the area by midnight as a second weak trough 
crosses the area overnight. 

Precipitation that was associated with the cold front has mostly 
wound down. That being said, areas of showers continue across 
portions of western/southwestern Utah ahead of the approaching 
second trough. These showers are expected to persist and shift east 
through late tonight before heights build early tomorrow morning as 
the trough departs the area. Additional snow accumulations are not 
expected to be significant, and as such, the Winter Weather 
Advisories have been expired or cancelled. 

The flow aloft will back more southwesterly tomorrow afternoon 
through Sunday with warm advection developing at 700mb. This warm 
advection is expected to result in snow showers (occasionally 
rain/snow mix in the valleys) across central and portions of 
northern Utah. This will occur in advance of the next storm system 
which will largely track across Arizona late Monday into Tuesday. 
Another storm system will then bring another potential for 
widespread snow on Wednesday.

Updated the forecast mainly to trim PoPs and adjust sky cover for 
the rest of the night.


&&

.AVIATION...The SLC terminal is expected to maintain primarily VFR 
conditions through much of the night with CIGS below 7kft. There is 
a 30 percent chance that periodic light snow showers after 07z will 
bring brief MVFR or possibly IFR conditions to the terminal at times 
through the night. Light northerly winds are expected to transition 
to southerly after 08-09z. 

&&

.SLC WATCHES/WARNINGS/ADVISORIES...
UT...None.

WY...None.
&&

$$

Cheng

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