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Hazardous Weather Outlook

Hazardous Weather Outlook
National Weather Service Grand Junction CO
308 AM MST Tue Dec 7 2021

COZ001>014-017>023-UTZ022>025-027>029-081400-
Lower Yampa River Basin-Central Yampa River Basin-
Roan and Tavaputs Plateaus-Elkhead and Park Mountains-
Upper Yampa River Basin-Grand Valley-Debeque to Silt Corridor-
Central Colorado River Basin-Grand and Battlement Mesas-
Gore and Elk Mountains/Central Mountain Valleys-
Central Gunnison and Uncompahgre River Basin-
West Elk and Sawatch Mountains-Flat Tops-
Upper Gunnison River Valley-Uncompahgre Plateau and Dallas Divide-
Northwest San Juan Mountains-Southwest San Juan Mountains-
Paradox Valley/Lower Dolores River-
Four Corners/Upper Dolores River-Animas River Basin-
San Juan River Basin-Southeast Utah-Eastern Uinta Mountains-
Eastern Uinta Basin-Tavaputs Plateau-Arches/Grand Flat-
La Sal and Abajo Mountains-Canyonlands/Natural Bridges-
308 AM MST Tue Dec 7 2021

This hazardous weather outlook is for eastern Utah and western
Colorado.

.DAY ONE...Today and Tonight

Showers will continue today, generally south of I-70, as a system
exits the region. Activity will taper off this afternoon as drier
air moves into the region, though isolated snow showers are
possible along the Continental Divide through this evening.

.DAYS TWO THROUGH SEVEN...Wednesday through Monday

A weak system will track across western Colorado on Wednesday
resulting in an uptick in shower activity, favoring the higher
terrain. A stronger, colder system will impact the region Thursday
and Friday resulting in cooler temperatures, widespread precipitation
and potential significant snow for the mountains. In the wake of
the late week system, drier weather looks to return for the
weekend.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is not expected today or tonight, however
spotters are encouraged to report snowfall amounts to the
National Weather Service in Grand Junction.

$$



Winter Storm Watch

URGENT - WINTER WEATHER MESSAGE
National Weather Service Grand Junction CO
237 AM MST Wed Dec 8 2021

COZ003>005-009-010-012-013-017>019-090000-
/O.EXT.KGJT.WS.A.0004.211209T0100Z-211211T0100Z/
Roan and Tavaputs Plateaus-Elkhead and Park Mountains-
Upper Yampa River Basin-Grand and Battlement Mesas-
Gore and Elk Mountains/Central Mountain Valleys-
West Elk and Sawatch Mountains-Flat Tops-
Uncompahgre Plateau and Dallas Divide-
Northwest San Juan Mountains-Southwest San Juan Mountains-
Including the cities of Rio Blanco, Columbine, Hahns Peak,
Toponas, Steamboat Springs, Aspen, Vail, Snowmass, Crested Butte,
Taylor Park, Marble, Buford, Trappers Lake, Ridgway, Glade Park,
Telluride, Ouray, Lake City, Silverton, Rico, and Hesperus
237 AM MST Wed Dec 8 2021

...WINTER STORM WATCH NOW IN EFFECT FROM THIS EVENING THROUGH
FRIDAY AFTERNOON...

* WHAT...Heavy snow possible. Total snow accumulations of 1 to 2
  feet possible with higher amounts possible over favored west
  facing peaks. Winds could gust as high as 40 mph.

* WHERE...Portions of northwest, southwest and west central
  Colorado.

* WHEN...From this evening through Friday afternoon.

* IMPACTS...Travel could become very difficult to impossible.
  Patchy blowing snow is likely to significantly reduce visibility
  at times, especially over mountain passes. Wind chills as low
  as 20 below zero could cause frostbite on exposed skin in as
  little as 30 minutes as colder air arrives Friday morning. A
  detailed map of the snowfall can be found at:
  www.weather.gov/gjt/winter.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Monitor the latest forecasts for updates on this situation.

&&

$$



U.S. Dept. of Commerce
NOAA National Weather Service
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Silver Spring, MD 20910
E-mail: w-nws.webmaster@noaa.gov
Page last modified: May 16, 2007
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