Hazardous Weather Outlook
Issued by NWS Salt Lake City, UT

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FLUS45 KSLC 140134
HWOSLC

Hazardous Weather Outlook
National Weather Service Salt Lake City UT
634 PM MST Wed Dec 13 2017

UTZ001>016-019>021-517-518-WYZ021-141315-
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-
634 PM MST Wed Dec 13 2017

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

.DAY ONE...Tonight

Patchy fog will remain in place across the northern and central
Wasatch Front, the Cache and Bear Lake valleys, and over portions
of the northwest desert including the I-80 corridor. The fog may
become locally dense at times late tonight.

Strong and gusty northerly canyon winds will develop across
Washington County overnight. These winds may impact travel along
the I-15 corridor through that area.

.DAYS TWO THROUGH SEVEN...Thursday through Tuesday

Inversion conditions will continue through at least Friday.
Expect areas of fog to persist across many of the lower northern
valleys through the end of the week. Urban haze and poor air
quality will also continue through Friday due to the strong and
persistent valley inversions across northern Utah.

The next real chance to scour out the fog and haze will come
Friday night through Saturday. A weather disturbance approaching
from the northwest will likely bring enough wind and colder air
aloft to significantly break down the inversions and push fog and
haze out of the area. In addition, accumulating snow is expected
across the mountains of northern Utah with this system, with
perhaps an inch or two in the valleys as well.

.SPOTTER INFORMATION STATEMENT...

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

$$

For more information from NOAA/s National Weather Service visit...
http://weather.gov/saltlakecity

For information on potential road travel impacts visit...
http://www.udottraffic.utah.gov/roadweatherforecast.aspx


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