227 
FXUS65 KSLC 281700
AFDSLC

Area Forecast Discussion
National Weather Service Salt Lake City UT
1000 AM MST Mon Jan 28 2019

.SYNOPSIS...A weak weather disturbance will continue southeast 
across eastern Utah today. A mostly dry and stable northwest flow 
aloft will follow through midweek with the next weather system 
bringing some shower activity to southwest Utah late in the week.

&&

.DISCUSSION...The weak shortwave moving south-southeast across
northeast Utah this morning will exit the forecast area by early 
this afternoon. Lift appears to be driven mostly by low-level 
cold advection, with little or no mid-level dynamic and thermal 
support for sustained deep lift. Add to this decreasing moisture 
and the result is rather limited areal coverage of what is light 
snow this morning. Significantly colder and still drier air across
Wyoming will follow the exiting shortwave later this afternoon 
through tonight. The bulk of this cold air should remain east of 
the Wasatch range with very cold temps and minimal amounts of fog 
Tuesday morning.

High pressure aloft will remain a dominant, albeit weakening,
feature to the west of Utah through Wednesday. A stable and mostly
dry northwest flow downstream from the high will remain across
Utah through Wednesday night. 

An upper low attempting to work through the high pressure will
reach the California coast by early Thursday, then track southeast
to the Arizona/Mexico border by early Friday. This feature should
remain sufficiently far removed from Utah such that any precip
that does work into the state will remain confined to extreme 
southwest Utah during the day Thursday.

&&

.AVIATION...Northerly winds in place at the KSLC terminal are 
expected to remain through the day before shifting to the south 
after 02z this evening. Scattered clouds will linger near the 
terminal and hug the terrain through the day, occasionally dipping 
below 7000 ft through 20z. 

&&

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

$$

PUBLIC...CONGER
AVIATION...DEWEY

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