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Hazardous Weather Outlook

Hazardous Weather Outlook
National Weather Service Salt Lake City UT
526 AM MST Sun Feb 19 2017

Cache Valley/Utah Portion-Northern Wasatch Front-
Salt Lake and Tooele Valleys-Southern Wasatch Front-
Great Salt Lake Desert and Mountains-Wasatch Mountain Valleys-
Wasatch Mountains I-80 North-Wasatch Mountains South of I-80-
Western Uinta Mountains-Wasatch Plateau/Book Cliffs-
Western Uinta Basin-Castle Country-San Rafael Swell-
Sanpete/Sevier Valleys-West Central Utah-Southwest Utah-
Utahs Dixie and Zion National Park-South Central Utah-
Glen Canyon Recreation Area/Lake Powell-Central Mountains-
Southern Mountains-Southwest Wyoming-
526 AM MST Sun Feb 19 2017

This Hazardous Weather Outlook is for the western two thirds of
Utah and southwest Wyoming.

.DAY ONE...Today and Tonight

An upper level weather disturbance moving east across the outlook
will generate valley rain and mountain snow through early this
evening. Significant snow accumulations are expected across the
northern mountains, with the greatest amounts along the northern
Wasatch range. Adjacent valley locations will see rain, though
brief periods of snow could mix with the rain in the higher
valleys and foothill areas.

Another active area of precipitation will exist across south-
central through east-central Utah. Valley rain will increase in
areal coverage this morning before shifting off to the east into
Colorado later today. The higher elevations will receive snow,
though accumulations are expected to be minimal.

.DAYS TWO THROUGH SEVEN...Monday through Saturday

High pressure aloft will move west to east across the Great Basin
Monday. Trialing this high pressure will be the next Pacific
storm system scheduled to arrive midweek. Ahead of this storm
period of showers will form across northwest Utah through
southwest Wyoming Tuesday through early Wednesday.

The storm moving into the Great Basin midweek will bring very
cold air to the outlook area for the middle and latter portions
the week. The potential will exist for a significant winter storm
for much of the outlook area Wednesday through Thursday. Much
colder temperatures will accompany this storm, with the coldest
reading across northern Utah through southwest Wyoming.

Temperatures will begin to rebound late in the week, though still
remain at or below late February normals heading into the weekend.


Weather spotters are encouraged to report significant weather
conditions according to standard operating procedures.


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