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Winter Weather Advisory


URGENT - WINTER WEATHER MESSAGE
National Weather Service Riverton WY
215 AM MST Sat Dec 16 2017

...Snow in the western mountains today, spreading east today and
tonight...

.A cold front will spread snow from northwest to southeast across
the area this morning. Snow will then begin to taper off from the
northwest tonight.

Snow packed, icy roads with poor visibility will hinder travel
across much of the area today and tonight lingering into Sunday
morning.

WYZ005>007-162200-
/O.CON.KRIW.WW.Y.0044.171216T1200Z-171217T1200Z/
Southwest Big Horn Basin-Southeast Big Horn Basin-
Owl Creek and Bridger Mountains-
Including the cities of Thermopolis and Worland
215 AM MST Sat Dec 16 2017

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 5 AM MST
SUNDAY...

* WHAT...Snow expected. Plan on slippery road conditions. Total
  snow accumulations of 2 to 5 inches in the basin; and 5 to 9
  inches in the mountains, with localized amounts up to 11
  inches, are expected.

* WHERE...Southwest Big Horn Basin and Owl Creek and Bridger
  Mountains.

* WHEN...5 AM this morning to 5 AM Sunday.

* ADDITIONAL DETAILS...Be prepared for reduced visibilities at
  times.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Weather Advisory for snow and blowing snow means periods
of snow and blowing snow will cause primarily travel
difficulties. Be prepared for snow covered roads and limited
visibilities, and use caution while driving. The latest road
conditions for the state you are calling from can be obtained by
calling 5 1 1.

$$

URGENT - WINTER WEATHER MESSAGE
National Weather Service Riverton WY
215 AM MST Sat Dec 16 2017

...Snow in the western mountains today, spreading east today and
tonight...

.A cold front will spread snow from northwest to southeast across
the area this morning. Snow will then begin to taper off from the
northwest tonight.

Snow packed, icy roads with poor visibility will hinder travel
across much of the area today and tonight lingering into Sunday
morning.

WYZ002-003-162200-
/O.CON.KRIW.WW.Y.0044.171216T1200Z-171217T1200Z/
Absaroka Mountains-Cody Foothills-
Including the cities of Cody and Meeteetse
215 AM MST Sat Dec 16 2017

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 5 AM MST
SUNDAY...

* WHAT...Snow expected. Plan on slippery road conditions. Total
  snow accumulations of 2 to 4 inches in the Cody Foothills; and 5
  to 9 inches in the mountains, with localized amounts up to 12
  inches, expected.

* WHERE...Absaroka Mountains and Cody Foothills.

* WHEN...5 AM this morning to 5 AM Sunday.

* ADDITIONAL DETAILS...Be prepared for reduced visibilities at
  times.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Weather Advisory for snow means periods of snow will
cause primarily travel difficulties. Be prepared for snow covered
roads and limited visibilities, and use caution while driving.
The latest road conditions for the state you are calling from can
be obtained by calling 5 1 1.

$$

URGENT - WINTER WEATHER MESSAGE
National Weather Service Riverton WY
215 AM MST Sat Dec 16 2017

...Snow in the western mountains today, spreading east today and
tonight...

.A cold front will spread snow from northwest to southeast across
the area this morning. Snow will then begin to taper off from the
northwest tonight.

Snow packed, icy roads with poor visibility will hinder travel
across much of the area today and tonight lingering into Sunday
morning.

WYZ012-162200-
/O.CON.KRIW.WW.Y.0044.000000T0000Z-171217T0000Z/
Teton and Gros Ventre Mountains-
215 AM MST Sat Dec 16 2017

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 5 PM MST THIS
AFTERNOON...

* WHAT...Snow expected. Plan on slippery road conditions. Total
  snow accumulations of 5 to 9 inches, with localized amounts up
  to 11 inches, are expected.

* WHERE...Teton and Gros Ventre Mountains.

* WHEN...Through 5 PM today.

* ADDITIONAL DETAILS...Be prepared for reduced visibilities at
  times. Travel may become difficult on Teton and Togwotee
  Passes.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Weather Advisory for snow means periods of snow will
cause primarily travel difficulties. Be prepared for snow covered
roads and limited visibilities, and use caution while driving.
The latest road conditions for the state you are calling from can
be obtained by calling 5 1 1.

$$

URGENT - WINTER WEATHER MESSAGE
National Weather Service Riverton WY
215 AM MST Sat Dec 16 2017

...Snow in the western mountains today, spreading east today and
tonight...

.A cold front will spread snow from northwest to southeast across
the area this morning. Snow will then begin to taper off from the
northwest tonight.

Snow packed, icy roads with poor visibility will hinder travel
across much of the area today and tonight lingering into Sunday
morning.

WYZ008-009-162200-
/O.CON.KRIW.WW.Y.0044.171216T1200Z-171217T1200Z/
Bighorn Mountains West-Bighorn Mountains Southeast-
215 AM MST Sat Dec 16 2017

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 5 AM MST
SUNDAY...

* WHAT...Snow expected. Plan on difficult travel conditions. Total
  snow accumulations of 5 to 8 inches, with localized amounts up
  to 16 inches, expected.

* WHERE...Bighorn Mountains West and Bighorn Mountains Southeast.

* WHEN...5 AM this morning to 5 AM Sunday.

* ADDITIONAL DETAILS...Be prepared for reduced visibilities at
  times.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Weather Advisory for snow means periods of snow will
cause primarily travel difficulties. Be prepared for snow covered
roads and limited visibilities, and use caution while driving.
The latest road conditions for the state you are calling from can
be obtained by calling 5 1 1.

$$

URGENT - WINTER WEATHER MESSAGE
National Weather Service Riverton WY
215 AM MST Sat Dec 16 2017

...Snow in the western mountains today, spreading east today and
tonight...

.A cold front will spread snow from northwest to southeast across
the area this morning. Snow will then begin to taper off from the
northwest tonight.

Snow packed, icy roads with poor visibility will hinder travel
across much of the area today and tonight lingering into Sunday
morning.

WYZ010-011-162200-
/O.CON.KRIW.WW.Y.0044.171216T1200Z-171217T1200Z/
Northeast Johnson County-Southeast Johnson County-
Including the cities of Buffalo and Kaycee
215 AM MST Sat Dec 16 2017

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 5 AM MST
SUNDAY...

* WHAT...Snow expected. Plan on slippery road conditions. Total
  snow accumulations of 2 to 4 inches, with localized amounts up
  to 7 inches along the foothills, expected.

* WHERE...Northeast Johnson County and Southeast Johnson County.

* WHEN...5 AM this morning to 5 AM Sunday.

* ADDITIONAL DETAILS...Be prepared for reduced visibilities at
  times.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Weather Advisory for snow means periods of snow will
cause primarily travel difficulties. Be prepared for snow covered
roads and limited visibilities, and use caution while driving.
The latest road conditions for the state you are calling from can
be obtained by calling 5 1 1.

$$

URGENT - WINTER WEATHER MESSAGE
National Weather Service Riverton WY
215 AM MST Sat Dec 16 2017

...Snow in the western mountains today, spreading east today and
tonight...

.A cold front will spread snow from northwest to southeast across
the area this morning. Snow will then begin to taper off from the
northwest tonight.

Snow packed, icy roads with poor visibility will hinder travel
across much of the area today and tonight lingering into Sunday
morning.

WYZ020-022-162200-
/O.CON.KRIW.WW.Y.0044.171216T1200Z-171217T1200Z/
Natrona County Lower Elevations-Casper Mountain-
Including the city of Casper
215 AM MST Sat Dec 16 2017

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 5 AM MST
SUNDAY...

* WHAT...Snow expected. Plan on slippery road conditions. Total
  snow accumulations of 3 to 5 inches in lower elevations, with
  5 to 10 inches on Casper Mountains, are expected.

* WHERE...Natrona County Lower Elevations and Casper Mountain.

* WHEN...5 AM this morning to 5 AM Sunday.

* ADDITIONAL DETAILS...Be prepared for reduced visibilities at
  times.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Weather Advisory for snow and blowing snow means periods
of snow and blowing snow will cause primarily travel
difficulties. Be prepared for snow covered roads and limited
visibilities, and use caution while driving. The latest road
conditions for the state you are calling from can be obtained by
calling 5 1 1.

$$

URGENT - WINTER WEATHER MESSAGE
National Weather Service Riverton WY
215 AM MST Sat Dec 16 2017

...Snow in the western mountains today, spreading east today and
tonight...

.A cold front will spread snow from northwest to southeast across
the area this morning. Snow will then begin to taper off from the
northwest tonight.

Snow packed, icy roads with poor visibility will hinder travel
across much of the area today and tonight lingering into Sunday
morning.

WYZ019-162200-
/O.CON.KRIW.WW.Y.0044.171216T1200Z-171217T1200Z/
Green Mountains and Rattlesnake Range-
Including the city of Jeffrey City
215 AM MST Sat Dec 16 2017

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 5 AM MST
SUNDAY...

* WHAT...Snow expected. Plan on slippery road conditions. Total
  snow accumulations of 3 to 5 inches, with localized amounts up
  to 10 inches in higher mountains, expected.

* WHERE...Green Mountains and Rattlesnake Range.

* WHEN...5 AM this morning to 5 AM Sunday.

* ADDITIONAL DETAILS...Be prepared for reduced visibilities at
  times.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Weather Advisory for snow and blowing snow means periods
of snow and blowing snow will cause primarily travel
difficulties. Be prepared for snow covered roads and limited
visibilities, and use caution while driving. The latest road
conditions for the state you are calling from can be obtained by
calling 5 1 1.

$$

URGENT - WINTER WEATHER MESSAGE
National Weather Service Riverton WY
215 AM MST Sat Dec 16 2017

...Snow in the western mountains today, spreading east today and
tonight...

.A cold front will spread snow from northwest to southeast across
the area this morning. Snow will then begin to taper off from the
northwest tonight.

Snow packed, icy roads with poor visibility will hinder travel
across much of the area today and tonight lingering into Sunday
morning.

WYZ015-017-018-162200-
/O.CON.KRIW.WW.Y.0044.171216T1200Z-171217T1200Z/
Wind River Mountains East-Wind River Basin-Lander Foothills-
Including the cities of Riverton, Shoshoni, and Lander
215 AM MST Sat Dec 16 2017

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 5 AM MST
SUNDAY...

* WHAT...Snow expected. Plan on slippery road conditions. Total
  snow accumulations of 3 to 5 inches in the basin; and 5 to 10
  inches with localized amounts up to 13 inches in the mountains,
   are expected.

* WHERE...Wind River Mountains East, Wind River Basin and Lander
  Foothills.

* WHEN...5 AM this morning to 5 AM Sunday.

* ADDITIONAL DETAILS...Be prepared for reduced visibilities at
  times.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Weather Advisory for snow and blowing snow means periods
of snow and blowing snow will cause primarily travel
difficulties. Be prepared for snow covered roads and limited
visibilities, and use caution while driving. The latest road
conditions for the state you are calling from can be obtained by
calling 5 1 1.

$$

URGENT - WINTER WEATHER MESSAGE
National Weather Service Riverton WY
215 AM MST Sat Dec 16 2017

...Snow in the western mountains today, spreading east today and
tonight...

.A cold front will spread snow from northwest to southeast across
the area this morning. Snow will then begin to taper off from the
northwest tonight.

Snow packed, icy roads with poor visibility will hinder travel
across much of the area today and tonight lingering into Sunday
morning.

WYZ014-025-162200-
/O.CON.KRIW.WW.Y.0044.171216T1200Z-171217T1200Z/
Wind River Mountains West-Upper Green River Basin Foothills-
Including the city of Pinedale
215 AM MST Sat Dec 16 2017

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 5 AM MST
SUNDAY...

* WHAT...Snow expected. Plan on slippery road conditions. Total
  snow accumulations of 2 to 4 inches in the basin; and 5 to 9
  localized amounts up to 12 inches in the mountains, expected.

* WHERE...Wind River Mountains West and Upper Green River Basin
  Foothills.

* WHEN...5 AM this morning to 5 AM Sunday.

* ADDITIONAL DETAILS...Be prepared for reduced visibilities at
  times.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Weather Advisory for snow and blowing snow means periods
of snow and blowing snow will cause primarily travel
difficulties. Be prepared for snow covered roads and limited
visibilities, and use caution while driving. The latest road
conditions for the state you are calling from can be obtained by
calling 5 1 1.

$$

For more information from the National Weather Service visit
http://weather.gov/riw

URGENT - WINTER WEATHER MESSAGE
National Weather Service Billings MT
925 PM MST Fri Dec 15 2017

MTZ028-034-039>042-063>065-170100-
/O.CON.KBYZ.WW.Y.0035.000000T0000Z-171217T0100Z/
Southern Wheatland-Northern Stillwater-Eastern Carbon-
Northern Park-Northern Sweet Grass-Golden Valley-Judith Gap-
Paradise Valley-Livingston Area-
Including the locations of  Harlowton, Twodot, Shawmut, Columbus,
Absarokee, Park City, Rapelje, Bridger, Joliet, Fromberg, Belfry,
Warren, Clyde Park, Wilsall, Big Timber, Melville, Ryegate,
Lavina, Judith Gap, Emigrant, Livingston, and Springdale
925 PM MST Fri Dec 15 2017

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 6 PM MST
SATURDAY...

* WHAT...Snow expected. Plan on slippery road conditions with
  reduced visibilities at times. Total snow accumulations of 2 to
  4 inches, with locally higher amounts possible.

* WHERE...Portions of Central and South Central Montana.

* WHEN...Through 6 PM MST Saturday.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Weather Advisory for snow means periods of snow will
cause primarily travel difficulties. Be prepared for snow covered
roads and limited visibilities, and use caution while driving.

For the latest road conditions, call 5 1 1.

Additional graphics for this hazard can be found at
http://www.weather.gov/billings

$$

URGENT - WINTER WEATHER MESSAGE
National Weather Service Billings MT
925 PM MST Fri Dec 15 2017

MTZ056-066-170100-
/O.CON.KBYZ.WW.Y.0035.000000T0000Z-171217T0100Z/
Red Lodge Foothills-Beartooth Foothills-
Including the locations of  Red Lodge, Roberts, Roscoe, Fishtail,
McLeod, and Nye
925 PM MST Fri Dec 15 2017

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 6 PM MST
SATURDAY...

* WHAT...Snow expected. Plan on difficult travel conditions with
  reduced visibilities at times. Total snow accumulations of 4 to
  6 inches, with locally higher amounts possible.

* WHERE...Red Lodge Foothills and Beartooth Foothills.

* WHEN...Through 6 PM MST Saturday.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Weather Advisory for snow means periods of snow will
cause primarily travel difficulties. Be prepared for snow covered
roads and limited visibilities, and use caution while driving.

For the latest road conditions, call 5 1 1.

Additional graphics for this hazard can be found at
http://www.weather.gov/billings

$$

URGENT - WINTER WEATHER MESSAGE
National Weather Service Billings MT
925 PM MST Fri Dec 15 2017

MTZ038-WYZ099-170430-
/O.CON.KBYZ.WW.Y.0035.171216T0900Z-171217T0600Z/
Southern Big Horn-Sheridan Foothills-
Including the locations of  Lodge Grass, Pryor, Wyola, Sheridan,
Dayton, Ranchester, Big Horn, and Story
925 PM MST Fri Dec 15 2017

...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 2 AM TO 11 PM
MST SATURDAY...

* WHAT...Snow expected. Plan on slippery road conditions with
  reduced visibilities at times. Total snow accumulations of 2
  to 4 inches, with locally higher amounts possible.

* WHERE...In Wyoming, Sheridan Foothills. In Montana, Southern
  Big Horn County.

* WHEN...From 2 AM to 11 PM MST Saturday.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Weather Advisory for snow means periods of snow will
cause primarily travel difficulties. Be prepared for snow covered
roads and limited visibilities, and use caution while driving.

For the latest road conditions, call 5 1 1.

Additional graphics for this hazard can be found at
http://www.weather.gov/billings

$$

URGENT - WINTER WEATHER MESSAGE
National Weather Service Billings MT
925 PM MST Fri Dec 15 2017

WYZ098-170430-
/O.CON.KBYZ.WW.Y.0035.171216T0900Z-171217T0600Z/
Northeast Bighorn Mountains-
Including the locations of  Burgess Jct
925 PM MST Fri Dec 15 2017

...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 2 AM TO 11 PM
MST SATURDAY...

* WHAT...Snow expected. Plan on difficult travel conditions on
  Highway 14 with reduced visibilities at times. Total snow
  accumulations of 5 to 10 inches.

* WHERE...Northeast Bighorn Mountains.

* WHEN...From 2 AM to 11 PM MST Saturday.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Weather Advisory for snow means periods of snow will
cause primarily travel difficulties. Be prepared for snow covered
roads and limited visibilities, and use caution while driving.

For the latest road conditions, call 5 1 1.

Additional graphics for this hazard can be found at
http://www.weather.gov/billings

$$

URGENT - WINTER WEATHER MESSAGE
National Weather Service Rapid City SD
908 PM MST Fri Dec 15 2017

...SNOWFALL SATURDAY...

.An upper level system will bring accumulating snowfall to much
of northeast Wyoming Saturday. The heaviest snow looks to be
across southern Campbell County, especially the higher elevations,
where 3 to 5 inches is expected.

WYZ055-161915-
/O.CON.KUNR.WW.Y.0023.171216T1300Z-171217T0700Z/
Southern Campbell-
Including the city of Wright
908 PM MST Fri Dec 15 2017

...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 6 AM SATURDAY
TO MIDNIGHT MST SATURDAY NIGHT...

* WHAT...Snow expected. Plan on slippery road conditions. Total
  snow accumulations of 3 to 5 inches are expected.

* WHERE...Southern Campbell County.

* WHEN...From 6 AM Saturday to midnight MST Saturday night.

* ADDITIONAL DETAILS...Be prepared for slick roads and reduced
  visibilities at times.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Weather Advisory for snow means snow accumulations will
create hazardous conditions. Use caution when traveling. The
latest road conditions can be obtained by calling 5 1 1.

$$

URGENT - WINTER WEATHER MESSAGE
National Weather Service Great Falls MT
838 PM MST Fri Dec 15 2017

MTZ008-015-052-053-055-161300-
/O.CON.KTFX.WW.Y.0049.171216T0600Z-171216T2100Z/
Beaverhead-Madison-Jefferson-Broadwater-Gallatin-
Including the following locations Big Hole Pass, Wisdom, Dillon,
Chief Joseph Pass, Monida Pass, Wise River, Ennis, Norris Hill,
Raynolds Pass, Twin Bridges, Virginia City, Montana City,
Boulder, Boulder Hill, Elk Park Pass, Homestake Pass, Whitehall,
Toston, Townsend, Bozeman, West Yellowstone, Battle Ridge Pass,
Bozeman Pass, and Targhee Pass
838 PM MST Fri Dec 15 2017

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 2 PM MST
SATURDAY...

* WHAT...Snow expected to develop overnight. Plan on slippery road
  conditions. Total snow accumulations of 1 to 3 inches in the
  valleys, 3 to 5 inches over mountain passes, and up to 7
  inches in the mountains, are expected.

* WHERE...Beaverhead, Madison, Jefferson, Broadwater and
  Gallatin.

* WHEN...Until 2 PM MST Saturday.

* ADDITIONAL DETAILS...Be prepared for reduced visibilities at
  times.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Weather Advisory for snow means periods of snow will
cause primarily travel difficulties. Be prepared for snow covered
roads and limited visibilities, and use caution while driving.
The latest road conditions for the state you are calling from can
be obtained by calling 5 1 1.

$$

http://www.weather.gov/greatfalls

URGENT - WINTER WEATHER MESSAGE
National Weather Service Pocatello ID
231 PM MST Fri Dec 15 2017


IDZ020-021-023-025-161200-
/O.CON.KPIH.WW.Y.0034.171216T1200Z-171217T0000Z/
Upper Snake River Plain-Lower Snake River Plain-Caribou Highlands-
Wasatch Mountains/Idaho Portion-
Including the cities of Idaho Falls, Rexburg, Pocatello, Henry,
Soda Springs, and Montpelier
231 PM MST Fri Dec 15 2017

...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 5 AM TO 5 PM
MST SATURDAY...

* WHAT...Snow expected. Plan on slippery road conditions. Total
  snow accumulations of up to two inches, with localized amounts
  up to 4 inches, are expected.

* WHERE...Interstate 15 corridor from Inkom and Pocatello to Idaho
  Falls, Highway 30 from McCammon to Wyoming border, with highest
  amounts Fish Creek Summit, Emigration Summit, Border Summit,
  Geneva Summit.

* WHEN...5 AM to 5 PM Saturday.

* ADDITIONAL DETAILS...Be prepared for reduced visibilities at
  times.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Weather Advisory for snow means periods of snow will
cause primarily travel difficulties. Be prepared for snow covered
roads and limited visibilities, and use caution while driving.
The latest road conditions can be obtained by calling 5 1 1.

$$

For more information from the National Weather Service visit
http://www.weather.gov/pocatello

URGENT - WINTER WEATHER MESSAGE
National Weather Service Pocatello ID
231 PM MST Fri Dec 15 2017


IDZ019-161200-
/O.CON.KPIH.WW.Y.0034.171216T0600Z-171217T0000Z/
Upper Snake Highlands-
Including the cities of St. Anthony, Ashton, Driggs, and Victor
231 PM MST Fri Dec 15 2017

...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 11 PM THIS
EVENING TO 5 PM MST SATURDAY...

* WHAT...Snow expected. Plan on slippery road conditions. Total
  snow accumulations of 2 to 4 inches, with localized amounts up
  to 6 inches, are expected.

* WHERE...Upper Snake Highlands, including the Highway 20 corridor
  from Ashton Hill north to Montana and Pine Creek Pass with
  lesser amounts elsewhere.

* WHEN...11 PM today to 5 PM Saturday.

* ADDITIONAL DETAILS...Be prepared for reduced visibilities at
  times.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Weather Advisory for snow means periods of snow will
cause primarily travel difficulties. Be prepared for snow covered
roads and limited visibilities, and use caution while driving.
The latest road conditions can be obtained by calling 5 1 1.

$$

URGENT - WINTER WEATHER MESSAGE
National Weather Service Cheyenne WY
109 PM MST Fri Dec 15 2017

...PERIODS OF SNOW EXPECTED EARLY SATURDAY MORNING THROUGH
SATURDAY NIGHT ACROSS CENTRAL AND EAST CENTRAL WYOMING...

WYZ101-104-161000-
/O.NEW.KCYS.WW.Y.0034.171216T1300Z-171217T1300Z/
Converse County Lower Elevations-Ferris/Seminoe/Shirley Mountains-
Including the cities of Bill, Douglas, Deer Creek, Glenrock,
and Seminoe Dam
109 PM MST Fri Dec 15 2017

...WINTER WEATHER ADVISORY IN EFFECT FROM 6 AM SATURDAY TO 6 AM
MST SUNDAY...

* WHAT...Periods of snow expected. Plan on slick and snowpacked
  roadways. Total snow accumulations of 2 to 5 inches.

* WHERE...Converse county and northern Carbon county, including
  Interstate 25 and Highway 287.

* WHEN...6 AM Saturday to 6 AM Sunday.

* ADDITIONAL DETAILS...Be prepared for reduced visibilities below
  one mile at times. Although winds will light Saturday morning,
  winds will increase Saturday afternoon and evening resulting in
  some drifting snow on area roadways.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Weather Advisory for snow means periods of snow will
cause primarily travel difficulties. Be prepared for snow covered
roads and limited visibilities, and use caution while driving.
The latest road conditions for the state you are calling from can
be obtained by calling 5 1 1.

$$

URGENT - WINTER WEATHER MESSAGE
National Weather Service Cheyenne WY
109 PM MST Fri Dec 15 2017

...PERIODS OF SNOW EXPECTED EARLY SATURDAY MORNING THROUGH
SATURDAY NIGHT ACROSS CENTRAL AND EAST CENTRAL WYOMING...

WYZ103-161000-
/O.NEW.KCYS.WW.Y.0034.171216T1300Z-171217T1300Z/
North Laramie Range-
Including the city of Garrett
109 PM MST Fri Dec 15 2017

...WINTER WEATHER ADVISORY IN EFFECT FROM 6 AM SATURDAY TO 6 AM
MST SUNDAY...

* WHAT...Snow expected. Plan on slick and snowpacked roadways.
  Total snow accumulations of 4 to 8 inches with locally higher
  amounts.

* WHERE...The northern Laramie Range including Laramie Peak and
  Esterbrook.

* WHEN...6 AM Saturday to 6 AM Sunday.

* ADDITIONAL DETAILS...Be prepared for reduced visibilities of one
  half mile at times.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Weather Advisory for snow means periods of snow will
cause primarily travel difficulties. Be prepared for snow covered
roads and limited visibilities, and use caution while driving.
The latest road conditions for the state you are calling from can
be obtained by calling 5 1 1.

$$


Special Weather Statement


Special Weather Statement
National Weather Service Riverton WY
716 PM MST Fri Dec 15 2017

WYZ013-023-161300-
Jackson Hole-Star Valley-
Including the cities of Jackson, Afton, Alpine,
Star Valley Ranch, and Thayne
716 PM MST Fri Dec 15 2017

...Snow to Spread into the Area Later Tonight Through Saturday...

A cold front will spread light snow into the area around midnight
with occasional snow continuing through the day, Saturday. Total
new snow accumulations are expected to range from 1 to 3 inches
across most of the Jackson Hole and Star Valleys by Saturday
evening. Snow will taper off Saturday evening.

$$

Special Weather Statement
National Weather Service Riverton WY
716 PM MST Fri Dec 15 2017

WYZ026>030-161300-
Upper Green River Basin-South Lincoln County-
Rock Springs and Green River-Flaming Gorge-East Sweetwater County-
Including the cities of La Barge, Big Piney, Farson, Kemmerer,
Cokeville, Rock Springs, Green River, and Wamsutter
716 PM MST Fri Dec 15 2017

...Snow to Spread into the Area Later Tonight Through Saturday...

A cold front will spread light snow into the area early Saturday
morning with occasional snow continuing through the day,
Saturday. Total new snow accumulations are expected to range from
1 to 3 inches across the area including Interstate 80 by late
Saturday evening. Snow will gradually taper after midnight
Saturday night. Travelers should expect slick conditions in
snowfall and limited visibility at times Saturday and Saturday
night.


$$

Special Weather Statement
National Weather Service Riverton WY
716 PM MST Fri Dec 15 2017

WYZ024-161300-
Salt River and Wyoming Ranges-
716 PM MST Fri Dec 15 2017

...Snow to Spread into the Area Later Tonight Through Saturday...

A cold front will spread light snow to moderate into the area
around midnight with occasional snow continuing through the day
Saturday. Total new snow accumulations are expected to range from
3 to 6 inches below 8500 feet and 5 to 10 inches on the higher
peaks by midnight Saturday night. Snow will taper off Saturday
night.

$$

Special Weather Statement
National Weather Service Riverton WY
716 PM MST Fri Dec 15 2017

WYZ016-161300-
Upper Wind River Basin-
Including the city of Dubois
716 PM MST Fri Dec 15 2017

...Snow to Spread into the Area Later Tonight Through Saturday...

A cold front will spread light snow into the area early Sunday
morning with occasional snow continuing through Saturday evening.
Total new snow accumulations are expected to range from 1 to 3
inches along Highway 287 from Dubois to Crowheart. Snow will
taper off early Sunday morning. Travelers should expect slick conditions
in snowfall and limited visibility at times Saturday and Saturday
night.

$$

Special Weather Statement
National Weather Service Riverton WY
716 PM MST Fri Dec 15 2017

WYZ004-161300-
North Big Horn Basin-
716 PM MST Fri Dec 15 2017

...Snow to Spread into the Area Later Tonight Through Saturday...

A cold front will spread light snow into the area early Sunday
morning with occasional snow continuing through Saturday evening.
Total new snow accumulations are expected to range from 1 to 3
inches across most of the northern Big Horn Basin by midnight,
Saturday night. Snow will taper off late Saturday night.
Travelers should expect slick conditions in snowfall and limited
visibility at times Saturday and Saturday evening.

$$


Air Quality Alert


IDC041-161900-

Idaho Department OF Environmental Quality Pocatello ID
Air Quality Alert Message
Relayed by National Weather Service Pocatello ID
935 AM MST Fri Dec 15 2017

...AN AIR QUALITY ADVISORY FROM THE IDAHO DEPARTMENT OF
ENVIRONMENTAL QUALITY REMAINS IN EFFECT...

Due to a stagnant atmosphere and elevated pollutant levels, local
residential wood burning restriction ordinances continue for
Franklin County.

Those individuals having an inherent sensitivity to increased
particulate levels are encouraged to avoid prolonged physical
exertion outside. At these levels there is an increasing
likelihood of respiratory symptoms and increased aggravation of
asthma and/or lung ailments.

Another statement will be issued by noon tomorrow.

For more information please access the departments
website at http://airquality.deq.idaho.gov

This statement is issued by the Idaho Department of Environmental
Quality, Air Quality Division, Pocatello Idaho Regional Office.
Contact at 208 236 6160.



$$


Hazardous Weather Outlook


Hazardous Weather Outlook
National Weather Service Riverton WY
645 PM MST Fri Dec 15 2017

WYZ001>020-022>030-161200-
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-
645 PM MST Fri Dec 15 2017

...Winter Weather Advisories for Portions of West and Central
Wyoming Late Tonight through Saturday Night...

This Hazardous Weather Outlook is for Western and Central
Wyoming.

.DAY ONE...Tonight.

A cold front will begin to spread snow across west and central
Wyoming late tonight.

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

Saturday and Saturday Night...Light to moderate snow across most
areas through the day Saturday, gradually tapering off from west
to east Saturday night. Please see Winter Weather Advisories for
the latest information.

Wednesday and Thursday...Another storm system will bring another
chance of snowfall, and much colder air to the area.

.SPOTTER INFORMATION STATEMENT...

Spotters are encouraged to report any snowfall amounts. Thank you.


$$

Hazardous Weather Outlook
National Weather Service Salt Lake City UT
335 PM MST Fri Dec 15 2017

UTZ001>016-019>021-517-518-WYZ021-162300-
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-
335 PM MST Fri Dec 15 2017

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

.DAY ONE...Tonight

Increasing clouds across northern Utah with a chance of snow
across the northwest desert and northern Wasatch Mountains towards
morning.

.DAYS TWO THROUGH SEVEN...Saturday through Thursday

A storm system will cross the area Saturday which will scour out
the valley inversions across northern Utah. Intermittent snow will
accompany this system and likely produce light snow accumulations
in the mountains and for the northern valleys as well.

Another cold Pacific system is expected to impact Utah Wednesday
bringing much colder temperatures and accumulating snow.

.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

Hazardous Weather Outlook...UPDATED
National Weather Service Rapid City SD
331 PM MST Fri Dec 15 2017

SDZ024-028-029-WYZ054-056>058-161400-
Northern Black Hills-Central Black Hills-Southern Black Hills-
Northern Campbell-Western Crook-Wyoming Black Hills-Weston-
331 PM MST Fri Dec 15 2017

This Hazardous Weather Outlook is for portions of the Black
Hills...and northeast Wyoming.

.DAY ONE...This Afternoon and Tonight

No hazardous weather expected at this time.

.DAYS TWO THROUGH SEVEN...Saturday through Thursday

A clipper system will bring 2 to 4 inches of snow to portions of
northeast Wyoming and the Black Hills Saturday and Saturday night.

.SPOTTER INFORMATION STATEMENT...

Spotter activation will not be needed today.

&&

Stay tuned to NOAA weather radio for further updates...or check
our web site at weather.gov/rapidcity

$$

Hazardous Weather Outlook...UPDATED
National Weather Service Rapid City SD
331 PM MST Fri Dec 15 2017

SDZ012-025>027-030-031-041-042-072>074-WYZ071-161400-
Butte-Northern Foot Hills-Rapid City-Southern Foot Hills-
Custer Co Plains-Pennington Co Plains-Fall River-Oglala Lakota-
Sturgis/Piedmont Foot Hills-Southern Meade Co Plains-
Hermosa Foot Hills-Northeastern Crook-
331 PM MST Fri Dec 15 2017

This Hazardous Weather Outlook is for portions of northwestern
South Dakota...southwestern South Dakota...and northeast Wyoming.

.DAY ONE...This Afternoon and Tonight

No hazardous weather expected at this time.

.DAYS TWO THROUGH SEVEN...Saturday through Thursday

A clipper system will bring some light snow to the region
Saturday and Saturday night. Accumulations will generally be
around an inch or less, although slightly higher amounts are
possible towards the Black Hills.

.SPOTTER INFORMATION STATEMENT...

Spotter activation will not be needed today.

&&

Stay tuned to NOAA weather radio for further updates...or check
our web site at weather.gov/rapidcity

$$

Hazardous Weather Outlook...UPDATED
National Weather Service Rapid City SD
331 PM MST Fri Dec 15 2017

WYZ055-161400-
Southern Campbell-
331 PM MST Fri Dec 15 2017

This Hazardous Weather Outlook is for portions of northeast
Wyoming.

.DAY ONE...This Afternoon and Tonight

No hazardous weather expected at this time.

.DAYS TWO THROUGH SEVEN...Saturday through Thursday

A clipper system will bring 3 to 5 inches of snow to northeast
Wyoming and the Black Hills Saturday and Saturday night. A winter
weather advisory is in effect for Saturday.

.SPOTTER INFORMATION STATEMENT...

Spotter activation will not be needed today.

&&

Stay tuned to NOAA weather radio for further updates...or check
our web site at weather.gov/rapidcity

$$

Hazardous Weather Outlook
National Weather Service Cheyenne WY
227 PM MST Fri Dec 15 2017

WYZ101>119-162130-
Converse County Lower Elevations-Niobrara County-
North Laramie Range-Ferris/Seminoe/Shirley Mountains-
Shirley Basin-Central Laramie Range and Southwest Platte County-
East Platte County-Goshen County-Central Carbon County-
North Snowy Range Foothills-Southwest Carbon County-
Sierra Madre Range-Upper North Platte River Basin-Snowy Range-
Laramie Valley-South Laramie Range-South Laramie Range Foothills-
Central Laramie County-East Laramie County-
227 PM MST Fri Dec 15 2017

This hazardous weather outlook is for southeast Wyoming.

.DAY ONE...THIS AFTERNOON AND TONIGHT

Strong winds will continue this evening before ending late tonight
over the wind prone areas of southeast Wyoming. Hazardous travel
for light weight and high profile vehicles will continue through
late this evening.

.DAYS TWO THROUGH SEVEN...SATURDAY THROUGH THURSDAY

A strong cold front will move across the region on Saturday. This
system will bring widespread snow, much colder temperatures, and
areas of freezing drizzle to the area. Those with travel plans
from Saturday afternoon through early Sunday morning across
southeast Wyoming can expect slick and snow covered roads, as well
as low visibility. Winter Weather Advisories are in effect north
of Rawlins towards Douglas and the northern Laramie Range.

.Spotter information statement...

Spotters are urged to send snowfall amounts to the National
Weather Service Saturday and early Sunday.

$$

Hazardous Weather Outlook
National Weather Service Denver/Boulder CO
1044 AM MST Fri Dec 15 2017

COZ030>051-161745-
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-
1044 AM MST Fri Dec 15 2017

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

.DAY ONE...Today and Tonight

Upper ridging will bring a warm and dry day. Gusty winds will be
found in the Front Range Foothills this afternoon, with peak
gusts reaching 45 to 60 mph in wind prone areas. Winds of 30 to 35
mph and humidity in the mid to upper teens near the Wyoming
border will produce near critical fire weather conditions around
noon. Lighter winds can be expected elsewhere.

.DAYS TWO THROUGH SEVEN...Saturday through Thursday

The next cold front will move across the forecast area Saturday,
ushering in cooler temperatures and a chance of very light snow or
light freezing drizzle across the Front Range and eastern plains
Saturday night into Sunday morning. At this time, any
precipitation is expected to be very light.

Dry and warmer weather will return Monday through Wednesday. The
next storm moves in Wednesday night and Thursday with a colder
airmass and a chance of snow.

.SPOTTER INFORMATION STATEMENT...

Spotter activation will not be needed today or tonight.

$$

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
NATIONAL WEATHER SERVICE: for Safety, for Work, for Fun - FOR LIFE