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Hazardous Weather Outlook

Hazardous Weather Outlook
National Weather Service Salt Lake City UT
345 AM MDT Tue Sep 21 2021

UTZ101>131-WYZ021-220945-
Great Salt Lake Desert and Mountains-Tooele and Rush Valleys-
Eastern Box Elder County-Northern Wasatch Front-Salt Lake Valley-
Utah Valley-Cache Valley/Utah Portion-Wasatch Back-
Bear Lake and Bear River Valley-Wasatch Mountains I-80 North-
Wasatch Mountains South of I-80-Western Uinta Mountains-
Wasatch Plateau/Book Cliffs-Western Uinta Basin-
Western Millard and Juab Counties-Eastern Juab/Millard Counties-
Central Mountains-Sanpete Valley-Sevier Valley-Castle Country-
San Rafael Swell-Southwest Utah-Lower Washington County-
Zion National Park-Southern Mountains-Upper Sevier River Valleys-
Bryce Canyon Country-South Central Utah-
Capitol Reef National Park and Vicinity-Western Canyonlands-
Glen Canyon Recreation Area/Lake Powell-Southwest Wyoming-
345 AM MDT Tue Sep 21 2021

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

.DAY ONE...Today and Tonight

Hard freeze conditions and widespread frost can be expected
through the remainder of the morning across portions of southwest
Utah, the Cache Valley, the Bear River Valley, Bear Lake, the
Wasatch Back and the Sanpete Valley.

Gusty gap winds are possible near canyons in Washington County
through the morning hours, but will gradually weaken through about
noon.

.DAYS TWO THROUGH SEVEN...Wednesday through Monday

An approaching weak trough will bring an uptick in wind speeds
across northern Utah and southwest Wyoming. Warming temperatures
will bring lower relative humidity values during the afternoon
hours, creating potential for critical fire weather conditions,
particularly across extreme southwest Wyoming on Wednesday
afternoon.

.SPOTTER INFORMATION STATEMENT...

Spotter activation may be needed. Please relay any information
about observed severe weather to the NWS while following all
local, state, and CDC guidelines.

$$

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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Page last modified: May 16, 2007
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