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Hazardous Weather Outlook


Hazardous Weather Outlook
National Weather Service Riverton WY
148 PM MST Fri Dec 6 2019

WYZ001>020-022>030-072100-
Yellowstone National Park-Absaroka Mountains-Cody Foothills-
North Big Horn Basin-Southwest Big Horn Basin-
Southeast Big Horn Basin-Owl Creek and Bridger Mountains-
Bighorn Mountains West-Bighorn Mountains Southeast-
Northeast Johnson County-Southeast Johnson County-
Teton and Gros Ventre Mountains-Jackson Hole-
Wind River Mountains West-Wind River Mountains East-
Upper Wind River Basin-Wind River Basin-Lander Foothills-
Green Mountains and Rattlesnake Range-
Natrona County Lower Elevations-Casper Mountain-Star Valley-
Salt River and Wyoming Ranges-Upper Green River Basin Foothills-
Upper Green River Basin-South Lincoln County-
Rock Springs and Green River-Flaming Gorge-East Sweetwater County-
148 PM MST Fri Dec 6 2019

...High Wind Warning across portions of Natrona County Saturday...

...Winter Storm Watch for far western Wyoming Saturday afternoon
through Sunday evening...

This Hazardous Weather Outlook is for Western and Central
Wyoming.

.DAY ONE...Tonight.

Patchy to areas of freezing fog will be possible over portions of
Sublette and southern Lincoln counties, as well as the Wind River
Basin.

.DAYS TWO THROUGH SEVEN...Saturday through Thursday.

Saturday...Patchy fog will remain possible over portions of
Sublette and southern Lincoln counties, as well as the Wind River
Basin through the late morning. Strong to high winds will occur
over portions of Natrona County, including Casper Mountain.

Saturday and Sunday...Significant snow possible over the far west
as a storm system approaches and moves through the region. Snow
will begin by the afternoon and continue through the day Sunday,
before gradually ending Sunday night.

Tuesday...Strong northwest winds possible over northern Johnson
County.

.SPOTTER INFORMATION STATEMENT...

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

$$

Hazardous Weather Outlook
National Weather Service Cheyenne WY
544 PM MST Fri Dec 6 2019

NEZ002-003-019>021-054-055-095-096-WYZ101>105-107>109-111>115-118-
119-080045-
Dawes-Box Butte-Scotts Bluff-Banner-Morrill-Kimball-Cheyenne-
North Sioux-South Sioux-Converse County Lower Elevations-
Niobrara County-North Laramie Range-
Ferris/Seminoe/Shirley Mountains-Shirley Basin-East Platte County-
Goshen County-Central Carbon County-Southwest Carbon County-
Sierra Madre Range-Upper North Platte River Basin-Snowy Range-
Laramie Valley-Central Laramie County-East Laramie County-
544 PM MST Fri Dec 6 2019

This hazardous weather outlook is for portions of western
Nebraska...east central Wyoming...south central Wyoming and
southeast Wyoming.

.DAY ONE...TONIGHT

No hazardous weather is expected.

.DAYS TWO THROUGH SEVEN...SATURDAY THROUGH THURSDAY

Winter weather returns Sunday night into Monday with a wintry mix
and snow showers possible. Additional chances for winter weather
are also possible through Thursday.

.Spotter information statement...

Spotter activation will not be needed.

$$

Hazardous Weather Outlook
National Weather Service Cheyenne WY
544 PM MST Fri Dec 6 2019

WYZ106-110-116-117-080045-
Central Laramie Range and Southwest Platte County-
North Snowy Range Foothills-South Laramie Range-
South Laramie Range Foothills-
544 PM MST Fri Dec 6 2019

This hazardous weather outlook is for portions of south central
Wyoming and southeast Wyoming.

.DAY ONE...TONIGHT

No hazardous weather is expected.

.DAYS TWO THROUGH SEVEN...SATURDAY THROUGH THURSDAY

A High Wind Warning is in effect from 5 AM MST Saturday to 2 AM
MST Sunday. Winds could gust as high as 65 MPH. Travel could be
hazardous especially for light and high profile vehicles.

Winter weather returns Sunday night into Monday with a wintry mix
and snow showers possible. Additional chances for winter weather
are also possible through Thursday.

.Spotter information statement...

Spotter activation will not be needed.

$$

Worley

Hazardous Weather Outlook
National Weather Service Billings MT
215 PM MST Fri Dec 6 2019

MTZ029>034-036-037-040-042-056>058-064>068-138-139-141-169>173-228-
235-WYZ198-199-072115-
Musselshell-Treasure-Northern Rosebud-Custer-Fallon-
Northern Stillwater-Powder River-Carter-Northern Park-
Golden Valley-Red Lodge Foothills-Northern Big Horn-
Southern Rosebud-Paradise Valley-Livingston Area-
Beartooth Foothills-Absaroka/Beartooth Mountains-Crazy Mountains-
Southern Big Horn-Southeastern Carbon-Northern Sweet Grass-
Bighorn Canyon-Northern Carbon-Pryor/Northern Bighorn Mountains-
Melville Foothills-Northeastern Yellowstone-Southern Wheatland-
Southwestern Yellowstone-Northeast Bighorn Mountains-
Sheridan Foothills-
215 PM MST Fri Dec 6 2019

This Hazardous Weather Outlook is for portions of central
Montana...south central Montana...southeast Montana and north
central Wyoming.

* WHAT...Snow, possibly mixed with freezing rain.

* WHERE...Southern Montana and north central Wyoming.

* WHEN...Sunday into Sunday evening.

* ADDITIONAL DETAILS...Roads could become slippery from snow and
  ice. Snow could accumulate 1 to 2 inches.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Hazardous Weather Outlook is issued when hazardous weather could
impact the region within the next week. Be sure to stay tuned for
future updates as locations, timing, and impacts could change.
Begin preparations to mitigate any impacts that could result from
the hazardous weather.

&&

$$

Hazardous Weather Outlook
National Weather Service Denver/Boulder CO
1109 AM MST Fri Dec 6 2019

COZ030>051-071815-
Jackson County Below 9000 Feet-
West Jackson and West Grand Counties Above 9000 Feet-
Grand and Summit Counties Below 9000 Feet-
South and East Jackson/Larimer/North and Northeast Grand/
Northwest Boulder Counties Above 9000 Feet-
South and Southeast Grand/West Central and Southwest Boulder/
Gilpin/Clear Creek/Summit/North and West Park Counties Above
9000 Feet-Larimer and Boulder Counties Between 6000 and 9000 Feet-
Jefferson and West Douglas Counties Above 6000 Feet/Gilpin/Clear
Creek/Northeast Park Counties Below 9000 Feet-
Central and Southeast Park County-
Larimer County Below 6000 Feet/Northwest Weld County-
Boulder And Jefferson Counties Below 6000 Feet/West Broomfield
County-
North Douglas County Below 6000 Feet/Denver/West Adams and
Arapahoe Counties/East Broomfield County-
Elbert/Central and East Douglas Counties Above 6000 Feet-
Northeast Weld County-Central and South Weld County-Morgan County-
Central and East Adams and Arapahoe Counties-
North and Northeast Elbert County Below 6000 Feet/North Lincoln
County-
Southeast Elbert County Below 6000 Feet/South Lincoln County-
Logan County-Washington County-Sedgwick County-Phillips County-
1109 AM MST Fri Dec 6 2019

This hazardous weather outlook is for northeast and north central
Colorado.

.DAY ONE...This Afternoon and Tonight

Skies will be sunny this afternoon except for a few areas of fog
around Greeley and Sterling. Visibilities may be less than a
quarter mile at times through about 2 PM.

Areas of fog are expected to re-develop in the South Platte River
Valley tonight. Visibilities may again drop to a quarter mile at
times.

.DAYS TWO THROUGH SEVEN...Saturday through Thursday

Areas of fog on the plains Saturday morning will give way to
mostly sunny skies and above normal temperatures.

Snow will develop in the mountains late Saturday night into
Sunday as the next weather system moves into the area. Several
inches of snow and hazardous winter travel conditions can be
expected Sunday through Monday. On the plains, there will be a
chance of snow showers, but only light if any accumulation would
be possible.

.SPOTTER INFORMATION STATEMENT...

Spotter activation will not be needed today or tonight.

$$

Hazardous Weather Outlook
National Weather Service Salt Lake City UT
358 AM MST Fri Dec 6 2019

UTZ001>016-019>021-517-518-WYZ021-071200-
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-
358 AM MST Fri Dec 6 2019

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

.DAY ONE...Today and Tonight

Persistent temperature inversions across northern Utah valleys
will result in degraded air quality and patchy fog through
Saturday.

.DAYS TWO THROUGH SEVEN...Saturday through Thursday

The next storm system will impact the region late Saturday
through Sunday, bringing a rain and snow mix in the western
valleys, and accumulating snowfall across the higher terrain.

.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

U.S. Dept. of Commerce
NOAA National Weather Service
1325 East West Highway
Silver Spring, MD 20910
E-mail: w-nws.webmaster@noaa.gov
Page last modified: June 2, 2009
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