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Winter Weather Advisory


URGENT - WINTER WEATHER MESSAGE
National Weather Service Billings MT
413 AM MST Sat Dec 16 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
413 AM MST Sat Dec 16 2017

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 6 PM MST THIS
EVENING...

* WHAT...Snow. 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 today.

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
413 AM MST Sat Dec 16 2017

MTZ035-057-170100-
/O.CON.KBYZ.WW.Y.0035.000000T0000Z-171217T0100Z/
Yellowstone-Northern Big Horn-
Including the locations of  Billings, Laurel, Huntley,
Pompeys Pillar, Custer, Broadview, Hardin, Crow Agency, and Busby
413 AM MST Sat Dec 16 2017

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 6 PM MST THIS
EVENING...

* WHAT...Snow. Plan on slippery road conditions with reduced
  visibilities at times. Total snow accumulations of 1 to 3
  inches, greatest south and west of Billings and Hardin.

* WHERE...Yellowstone and Northern Big Horn counties.

* WHEN...Through 6 PM MST today.

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
413 AM MST Sat Dec 16 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
413 AM MST Sat Dec 16 2017

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 6 PM MST THIS
EVENING...

* WHAT...Snow. Plan on difficult travel conditions with reduced
  visibilities at times. Total snow accumulations of 4 to 6
  inches.

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

* WHEN...Through 6 PM MST today.

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
413 AM MST Sat Dec 16 2017

MTZ038-WYZ099-170600-
/O.CON.KBYZ.WW.Y.0035.000000T0000Z-171217T0600Z/
Southern Big Horn-Sheridan Foothills-
Including the locations of  Lodge Grass, Pryor, Wyola, Sheridan,
Dayton, Ranchester, Big Horn, and Story
413 AM MST Sat Dec 16 2017

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 11 PM MST THIS
EVENING...

* WHAT...Snow. 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...Through 11 PM MST this evening.

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
413 AM MST Sat Dec 16 2017

WYZ098-170600-
/O.CON.KBYZ.WW.Y.0035.000000T0000Z-171217T0600Z/
Northeast Bighorn Mountains-
Including the locations of  Burgess Jct
413 AM MST Sat Dec 16 2017

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 11 PM MST THIS
EVENING...

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

* WHERE...Northeast Bighorn Mountains.

* WHEN...Through 11 PM MST this evening.

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 Pocatello ID
354 AM MST Sat Dec 16 2017

IDZ019-162200-
/O.CON.KPIH.WW.Y.0034.000000T0000Z-171217T0000Z/
Upper Snake Highlands-
Including the cities of St. Anthony, Ashton, Driggs, and Victor
354 AM MST Sat Dec 16 2017

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

* WHAT...Snow occurring. Plan on slippery road conditions.
  Additional snow accumulations of 1 to 3 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...Until 5 PM today.

* ADDITIONAL DETAILS...Visibility will be reduced in heavier Snow. Reduce
  driving speeds and allow extra time to reach your destination.

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 Pocatello ID
354 AM MST Sat Dec 16 2017

IDZ020-021-023-025-162200-
/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
354 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 up to two 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 today.

* ADDITIONAL DETAILS...Visibility will be reduced in heavier Snow.
  Reduce driving speeds and allow extra time to reach your
  destination.

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 Great Falls MT
323 AM MST Sat Dec 16 2017

MTZ012-014-050-054-161800-
/O.CON.KTFX.WW.Y.0049.000000T0000Z-171216T1800Z/
Cascade-Central and Southern Lewis and Clark-Judith Basin-Meagher-
Including the following locations Kings Hill Pass, Helena,
Lincoln, MacDonald Pass, Rogers Pass, Raynesford, Stanford,
Hobson, Martinsdale, and White Sulphur Springs
323 AM MST Sat Dec 16 2017

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 11 AM MST THIS
MORNING...

* WHAT...Snow occurring. Plan on slippery road conditions.
  Additional snow accumulations of 1 to 3 inches are expected,
  with the highest additional accumulations occurring in the
  mountains.

* WHERE...Elevations above 4000ft in Cascade County. Central and
  Southern Lewis and Clark, Judith Basin and Meagher Counties.

* WHEN...Until 11 AM MST this morning.

* 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 Great Falls MT
323 AM MST Sat Dec 16 2017

MTZ008-015-052-053-055-162000-
/O.CON.KTFX.WW.Y.0049.000000T0000Z-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
323 AM MST Sat Dec 16 2017

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 2 PM MST THIS
AFTERNOON...

* WHAT...Snow occurring. Plan on slippery road conditions.
  Additional snow accumulations of 1 to 3 inches are expected,
  with the highest additional accumulations occurring in the
  mountains.

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

* WHEN...Until 2 PM MST this afternoon.

* 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 Missoula MT
317 AM MST Sat Dec 16 2017

MTZ005-043-161800-
/O.CON.KMSO.WW.Y.0044.000000T0000Z-171216T1800Z/
Missoula/Bitterroot Valleys-Potomac/Seeley Lake Region-
317 AM MST Sat Dec 16 2017

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 11 AM MST THIS
MORNING...

* WHAT...Snow occurring. Plan on slippery road conditions.
  Additional snow accumulations of one to two inches are
  expected.

* WHERE...Bitterroot Valley, Missoula, Highway 200 Bonner to
  Greenough, Highway 83 Seeley Lake to Condon, and I-90 East
  Missoula to Bearmouth.

* WHEN...Until 11 AM MST this morning.

* 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 Missoula MT
317 AM MST Sat Dec 16 2017

IDZ005-006-MTZ006-161800-
/O.CON.KMSO.WW.Y.0044.000000T0000Z-171216T1800Z/
Northern Clearwater Mountains-Southern Clearwater Mountains-
Bitterroot/Sapphire Mountains-
317 AM MST Sat Dec 16 2017 /217 AM PST Sat Dec 16 2017/

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 11 AM MST
/10 AM PST/ THIS MORNING...

* WHAT...Snow occurring. Plan on slippery road conditions.
  Additional snow accumulations of 2 to 3 inches are expected.

* WHERE...Elk River, Highway 11 Pierce to Headquarters, Pierce,
  Dixie, Elk City, Highway 12 Lowell to Lolo Pass, Highway 93
  Sula to Lost Trail Pass, and Lolo Pass.

* WHEN...Until 11 AM MST /10 AM PST/ this morning.

* 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 Missoula MT
317 AM MST Sat Dec 16 2017

IDZ009-010-MTZ007-161800-
/O.CON.KMSO.WW.Y.0044.000000T0000Z-171216T1800Z/
Western Lemhi County-Eastern Lemhi County-Butte/Blackfoot Region-
317 AM MST Sat Dec 16 2017

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 11 AM MST THIS
MORNING...

* WHAT...Snow occurring. Plan on slippery road conditions.
  Additional snow accumulations of up to two inches are expected.

* WHERE...In Montana, Butte/Blackfoot Region. In Idaho, Western
  Lemhi County and Eastern Lemhi County.

* WHEN...Until 11 AM MST this morning.

* 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 Missoula MT
317 AM MST Sat Dec 16 2017

MTZ004-161800-
/O.CON.KMSO.WW.Y.0044.000000T0000Z-171216T1800Z/
Lower Clark Fork Region-
317 AM MST Sat Dec 16 2017

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 11 AM MST THIS
MORNING...

* WHAT...Snow occurring. Plan on slippery road conditions.
  Additional snow accumulations of up to two inches are expected.

* WHERE...Evaro Hill, Highway 200 Thompson Falls to Plains,
  Highway 200 Trout Creek to Heron, and I-90 Lookout Pass to
  Haugan.

* WHEN...Until 11 AM MST this morning.

* 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 Rapid City SD
316 AM MST Sat Dec 16 2017

...SNOWFALL TODAY...

.An upper level system will bring accumulating snowfall to much
of northeast Wyoming today. The heaviest snow looks to be across
southern Campbell County, especially the higher elevations, where
2 to 4 inches is expected.

WYZ055-170130-
/O.CON.KUNR.WW.Y.0023.171216T1300Z-171217T0700Z/
Southern Campbell-
Including the city of Wright
316 AM MST Sat Dec 16 2017

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL MIDNIGHT MST
TONIGHT...

* WHAT...Snow expected. Plan on slippery road conditions. Total
  snow accumulations of 2 to 4 inches are expected.

* WHERE...Southern Campbell County.

* WHEN...Until midnight MST tonight.

* 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 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.

$$


Special Weather Statement


Special Weather Statement
National Weather Service Riverton WY
651 AM MST Sat Dec 16 2017

WYZ004-162200-
North Big Horn Basin-
651 AM MST Sat Dec 16 2017

Light snow will develop quickly this morning and continue through
this evening before tapering off after midnight. Most areas will
see 1 to 2 inches of snow by later tonight. Roads will become
snow covered so use caution if travelling today.

$$

Special Weather Statement
National Weather Service Riverton WY
651 AM MST Sat Dec 16 2017

WYZ013-023-162200-
Jackson Hole-Star Valley-
Including the cities of Jackson, Afton, Alpine,
Star Valley Ranch, and Thayne
651 AM MST Sat Dec 16 2017

Light snow will continue across the area today before tapering off
and ending this evening. Roads will be snow covered so use caution
if travelling today. Total snowfall of 2 to 4 inches will occur
across much of the area today.

$$

Special Weather Statement
National Weather Service Riverton WY
651 AM MST Sat Dec 16 2017

WYZ001-162200-
Yellowstone National Park-
Including the cities of Lake, Mammoth, and Old Faithful
651 AM MST Sat Dec 16 2017

Light snow will continue across the area today before tapering
off and ending this evening. Total snowfall of 3 to 5 inches will
occur across the area by this evening.

$$

Team Riverton

Special Weather Statement
National Weather Service Riverton WY
230 AM MST Sat Dec 16 2017

WYZ002-003-005-007-162200-
Absaroka Mountains-Cody Foothills-Southwest Big Horn Basin-
Owl Creek and Bridger Mountains-
Including the cities of Cody, Meeteetse, and Thermopolis
230 AM MST Sat Dec 16 2017

...Snow and colder temperatures for Park and Hot Springs counties
today...

Snow will spread south into Park and Hot Springs Counties early
this morning. Snowfall is expected to continue through today with
snow accumulations of 4 to 8 inches in the mountains and 2 to 4
inches in the lower elevations.

Travel may become difficult on Chief Joseph Highway and through
the Wind River Canyon.

$$

Special Weather Statement
National Weather Service Riverton WY
230 AM MST Sat Dec 16 2017

WYZ004-006-008-162200-
North Big Horn Basin-Southeast Big Horn Basin-
Bighorn Mountains West-
Including the city of Worland
230 AM MST Sat Dec 16 2017

...Snow and colder temperatures for Big Horn and Washakie
counties early this morning into this evening...

Snow will spread south into Big Horn and Washakie counties early
this morning becoming widespread by this afternoon. Snowfall is
expected to continue through this evening with snow accumulations
of 4 to 8 inches in the mountains and 1 to 3 inches in the lower
elevations.

Travel may become difficult on Powder River Pass.  Expect Slick
icy and snow packed pavement with low visibility.

$$

Special Weather Statement
National Weather Service Riverton WY
230 AM MST Sat Dec 16 2017

WYZ009>011-162200-
Bighorn Mountains Southeast-Northeast Johnson County-
Southeast Johnson County-
Including the cities of Buffalo and Kaycee
230 AM MST Sat Dec 16 2017

...Snow and colder temperatures for Johnson county early Saturday
into Saturday evening...

Snow will spread south into Johnson county early this morning,
becoming widespread by late this morning. Snowfall is expected to
continue through today, with snow accumulations of 5 to 10 inches
in the mountains and 2 to 5 inches in the lower elevations.

Travel may become difficult on Powder River pass.  Expect
Slick icy and snow packed pavement with low visibility on
Interstates 25 and 90.

$$

Special Weather Statement
National Weather Service Riverton WY
230 AM MST Sat Dec 16 2017

WYZ012-013-162200-
Teton and Gros Ventre Mountains-Jackson Hole-
Including the city of Jackson
230 AM MST Sat Dec 16 2017

...Snow and colder temperatures for today...


Snow will spread east into Teton County early this morning,. The
snowfall is expected to continue through today with snow accumulations
of 6 to 12 inches in the mountains and 3 to 6 inches in the
valleys.

Travel may become difficult on Teton and Togwotee passes.

$$


Hazardous Weather Outlook


Hazardous Weather Outlook
National Weather Service Billings MT
438 AM MST Sat Dec 16 2017

MTZ028-041-065-066-171145-
Southern Wheatland-Northern Sweet Grass-Livingston Area-
Beartooth Foothills-
438 AM MST Sat Dec 16 2017

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

* WHAT...Strong southwest winds.

* WHERE...Livingston to Nye, as well as Harlowton to Big Timber.

* WHEN...Sunday night into Monday morning.

* ADDITIONAL DETAILS...Expect gusts of 60 to 75 mph from Livingston
  to Nye with difficult crosswinds along I-90 and area roads around
  Nye. Gusts 50 to 60 mph from Big Timber to Harlowton with
  difficult crosswinds along US 191.

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 Rapid City SD
437 AM MST Sat Dec 16 2017

SDZ001-002-013-014-032-043-044-046-047-049-171300-
Harding-Perkins-Northern Meade Co Plains-Ziebach-Haakon-Jackson-
Bennett-Mellette-Todd-Tripp-
437 AM MST Sat Dec 16 2017 /537 AM CST Sat Dec 16 2017/

This Hazardous Weather Outlook is for portions of western South
Dakota.

.DAY ONE...TODAY AND TONIGHT

Light snow is expected over parts of the area today and tonight.
Accumulations will generally be less than an inch.

.DAYS TWO THROUGH SEVEN...Sunday through Friday

No hazardous weather expected at this time.

.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 Rapid City SD
437 AM MST Sat Dec 16 2017

SDZ024-028-029-WYZ054-056>058-171300-
Northern Black Hills-Central Black Hills-Southern Black Hills-
Northern Campbell-Western Crook-Wyoming Black Hills-Weston-
437 AM MST Sat Dec 16 2017

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

.DAY ONE...Today and Tonight

A clipper system will bring 2 to 4 inches of snow to parts of
northeastern Wyoming and the Black Hills today into tonight.

.DAYS TWO THROUGH SEVEN...Sunday through Friday

No hazardous weather expected at this time.

.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 Rapid City SD
437 AM MST Sat Dec 16 2017

SDZ012-025>027-030-031-041-042-072>074-WYZ071-171300-
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-
437 AM MST Sat Dec 16 2017

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

.DAY ONE...Today and Tonight

Some light snow will fall over parts of the region today and
tonight. Snow accumulations will generally be around an inch or
less, although slightly higher amounts are possible towards the
Black Hills.

.DAYS TWO THROUGH SEVEN...Sunday through Friday

No hazardous weather is expected at this time.

.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 Rapid City SD
437 AM MST Sat Dec 16 2017

WYZ055-171300-
Southern Campbell-
437 AM MST Sat Dec 16 2017

This Hazardous Weather Outlook is for portions of northeast
Wyoming.

.DAY ONE...Today and Tonight

Snow will fall today into tonight. 3 to 5 inches of snow
accumulation will fall over southern Campbell county in
northeastern Wyoming. A winter weather advisory is in effect.

.DAYS TWO THROUGH SEVEN...Sunday through Friday

No hazardous weather expected at this time.

.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 Riverton WY
224 AM MST Sat Dec 16 2017

WYZ001>020-022>030-171200-
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-
224 AM MST Sat Dec 16 2017

This Hazardous Weather Outlook is for Western and Central
Wyoming.

.DAY ONE...Today and Tonight.

Light to moderate snow across most areas through the day today,
gradually tapering off from northwest to southeast tonight.
Please see Winter Weather Advisories for the latest information.

.DAYS TWO THROUGH SEVEN...Sunday through Friday.

Sunday night...Winds will increase at the higher elevations as
well as along the Southern Wind Corridor from Rock Springs to
Casper.

Tuesday Night into Wednesday morning...Strong wind possible
across the Cody Foothills and southern wind corridor from Jeffrey
City to Casper.

Wednesday through Thursday morning...Another storm system will
spread snow and much colder air southeast across the area.

.SPOTTER INFORMATION STATEMENT...

$$

TEAM RIVERTON

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