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Hazardous Weather Outlook

Hazardous Weather Outlook
National Weather Service Salt Lake City UT
630 AM MST Wed Dec 11 2019

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-
630 AM MST Wed Dec 11 2019

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

.DAY ONE...Today and Tonight

A weakening weather disturbance will cross through the outlook
area today. Light precipitation will be confined to far northern
Utah and southwest Wyoming. This storm is not expected to entirely
clear out the urban haze as it passes through the area.

.DAYS TWO THROUGH SEVEN...Thursday through Tuesday

A long duration winter storm is expected to impact the northern
Utah mountains beginning Thursday afternoon and continuing into
Saturday. Significant snow accumulations are expected, with the
heaviest of the snows scheduled to arrive Friday night through
Saturday. The Wasatch range will receive the greatest snow amounts
from this storm.

For the valleys, expect rain or rain mixed with snow for the
valley floors through at least early Friday. A transition to all
snow will begin later Friday, with valley locations seeing their
best chance for accumulating snows Friday night through Saturday.

Winter driving conditions can be expected on northern mountain
routes starting Thursday afternoon and northern valley routes by
Friday night or early Saturday.

Precipitation will reach into central and southern Utah by late
Friday night or early Saturday. This precipitation event will be
a relatively short one, with minimal snow accumulations in the
mountains. Valley locations will see both rain and snow as the
storm works south through the area.

Dry conditions will return beginning Sunday as high pressure aloft
returns to the Great Basin.


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


For more information from NOAA/s National Weather Service visit...

For information on potential road travel impacts visit...

U.S. Dept. of Commerce
NOAA National Weather Service
1325 East West Highway
Silver Spring, MD 20910
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