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Winter Storm Warning


URGENT - WINTER WEATHER MESSAGE
National Weather Service Riverton WY
1047 AM MST Fri Jan 19 2018

...Snow returns to the northwest today and then to Central
Wyoming later tonight through Saturday night...

.One winter storm system will continue to impact northwest
Wyoming today, winding down later this afternoon. Then winter
storm will shift south and east tonight with snow developing
across southwestern, south central, and central Wyoming later
tonight and Saturday morning...continuing through Saturday night.
Significant snowfall is expected across portions of these areas
the next couple days.

WYZ020-200200-
/O.UPG.KRIW.WS.A.0002.180120T0900Z-180121T1200Z/
/O.NEW.KRIW.WS.W.0003.180120T0900Z-180121T1200Z/
Natrona County Lower Elevations-
Including the city of Casper
1047 AM MST Fri Jan 19 2018

...WINTER STORM WARNING IN EFFECT FROM 2 AM SATURDAY TO 5 AM MST
SUNDAY...

* WHAT...Heavy snow expected. Plan on difficult travel
  conditions. Total snow accumulations of 5 to 8 inches, with
  localized amounts up to 10 inches, are expected.

* WHERE...Natrona County Lower Elevations.

* WHEN...2 AM Saturday to 5 AM Sunday.

* ADDITIONAL DETAILS...Be prepared for significant reductions in
  visibility at times.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Storm Warning for snow means severe winter weather
conditions are expected. If you must travel, keep an extra
flashlight, food and water in your vehicle in case of an
emergency. 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
1047 AM MST Fri Jan 19 2018

...Snow returns to the northwest today and then to Central
Wyoming later tonight through Saturday night...

.One winter storm system will continue to impact northwest
Wyoming today, winding down later this afternoon. Then winter
storm will shift south and east tonight with snow developing
across southwestern, south central, and central Wyoming later
tonight and Saturday morning...continuing through Saturday night.
Significant snowfall is expected across portions of these areas
the next couple days.

WYZ022-200200-
/O.UPG.KRIW.WS.A.0002.180120T0900Z-180121T1200Z/
/O.NEW.KRIW.WS.W.0003.180120T0900Z-180121T1200Z/
Casper Mountain-
1047 AM MST Fri Jan 19 2018

...WINTER STORM WARNING IN EFFECT FROM 2 AM SATURDAY TO 5 AM MST
SUNDAY...

* WHAT...Heavy snow expected. Plan on difficult travel conditions.
  Total snow accumulations of 9 to 14 inches, with localized
  amounts up to 16 inches, are expected.

* WHERE...Casper Mountain.

* WHEN...2 AM Saturday to 5 AM Sunday.

* ADDITIONAL DETAILS...Be prepared for significant reductions in
  visibility at times.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Storm Warning for snow means severe winter weather
conditions are expected. If you must travel, keep an extra
flashlight, food and water in your vehicle in case of an
emergency. The latest road conditions for the state you are
calling from can be obtained by calling 5 1 1.

$$


Winter Weather Advisory


URGENT - WINTER WEATHER MESSAGE
National Weather Service Riverton WY
1047 AM MST Fri Jan 19 2018

...Snow returns to the northwest today and then to Central
Wyoming later tonight through Saturday night...

.One winter storm system will continue to impact northwest
Wyoming today, winding down later this afternoon. Then winter
storm will shift south and east tonight with snow developing
across southwestern, south central, and central Wyoming later
tonight and Saturday morning...continuing through Saturday night.
Significant snowfall is expected across portions of these areas
the next couple days.

WYZ011-200200-
/O.NEW.KRIW.WW.Y.0004.180120T0900Z-180121T1200Z/
Southeast Johnson County-
Including the city of Kaycee
1047 AM MST Fri Jan 19 2018

...WINTER WEATHER ADVISORY IN EFFECT FROM 2 AM SATURDAY TO 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 8 inches, are expected.

* WHERE...Southeast Johnson County.

* WHEN...2 AM Saturday 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.

$$


Winter Storm Watch


URGENT - WINTER WEATHER MESSAGE
National Weather Service Cheyenne WY
1001 AM MST Fri Jan 19 2018

...Significant Snow Possible Beginning on Saturday...

.A winter storm system will move across southeastern Wyoming and
the western Nebraska Panhandle Saturday and Sunday. Snow is
expected to begin in the Rawlins, Saratoga, Elk Mountain, and
Arlington areas Saturday morning, spreading east onto the High
Plains of eastern Wyoming and western Nebraska by Saturday
Evening. Snow for parts of the area could be heavy at times this
weekend. Travel across the region could be significantly
impacted.

NEZ002-003-019-020-095-096-WYZ102-107-108-117>119-200300-
/O.CON.KCYS.WS.A.0002.180121T0000Z-180121T2100Z/
Dawes-Box Butte-Scotts Bluff-Banner-North Sioux-South Sioux-
Niobrara County-East Platte County-Goshen County-
South Laramie Range Foothills-Central Laramie County-
East Laramie County-
Including the cities of Chadron, Chadron St Park, Alliance,
Scottsbluff, Gering, Harrisburg, Harrison, Agate, Lusk, Redbird,
Wheatland, Guernsey, Torrington, Whitaker, Federal, Horse Creek,
Cheyenne, and Pine Bluffs
1001 AM MST Fri Jan 19 2018

...WINTER STORM WATCH REMAINS IN EFFECT FROM SATURDAY AFTERNOON
THROUGH SUNDAY AFTERNOON...

* WHAT...Heavy snow possible. Plan on difficult travel
  conditions. Total snow accumulations of 5 to 8 inches are
  possible.

* WHERE...Southeastern Wyoming as well as the Northern and
  Central Nebraska Panhandle.

* WHEN...From Saturday afternoon through Sunday afternoon.

* ADDITIONAL DETAILS...Significant reductions in visibility are
  possible. Blowing and drifting snow are expected on Sunday and
  may last into Monday morning.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Storm Watch means there is potential for significant
snow, sleet or ice accumulations that may impact travel. Continue
to monitor the latest forecasts.

$$

URGENT - WINTER WEATHER MESSAGE
National Weather Service Cheyenne WY
1001 AM MST Fri Jan 19 2018

...Significant Snow Possible Beginning on Saturday...

.A winter storm system will move across southeastern Wyoming and
the western Nebraska Panhandle Saturday and Sunday. Snow is
expected to begin in the Rawlins, Saratoga, Elk Mountain, and
Arlington areas Saturday morning, spreading east onto the High
Plains of eastern Wyoming and western Nebraska by Saturday
Evening. Snow for parts of the area could be heavy at times this
weekend. Travel across the region could be significantly
impacted.

WYZ101-106-115-116-200300-
/O.CON.KCYS.WS.A.0002.180120T2100Z-180121T2100Z/
Converse County Lower Elevations-
Central Laramie Range and Southwest Platte County-Laramie Valley-
South Laramie Range-
Including the cities of Bill, Douglas, Deer Creek, Glenrock,
Bordeaux, Bosler, Laramie, Buford, Pumpkin Vine, and Vedauwoo
1001 AM MST Fri Jan 19 2018

...WINTER STORM WATCH REMAINS IN EFFECT FROM SATURDAY AFTERNOON
THROUGH SUNDAY AFTERNOON...

* WHAT...Heavy snow possible. Plan on difficult travel
  conditions. Total snow accumulations of 6 to 8 inches, with
  localized amounts up to 12 inches, are possible.

* WHERE...The Laramie Range as well as Converse, Niobrara and
  Platte counties.

* WHEN...From Saturday afternoon through Sunday afternoon.

* ADDITIONAL DETAILS...Significant reductions in visibility are
  possible. Blowing and drifting snow are expected on Sunday and
  may last into Monday morning.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Storm Watch means there is potential for significant
snow, sleet or ice accumulations that may impact travel. Continue
to monitor the latest forecasts.

$$

URGENT - WINTER WEATHER MESSAGE
National Weather Service Cheyenne WY
1001 AM MST Fri Jan 19 2018

...Significant Snow Possible Beginning on Saturday...

.A winter storm system will move across southeastern Wyoming and
the western Nebraska Panhandle Saturday and Sunday. Snow is
expected to begin in the Rawlins, Saratoga, Elk Mountain, and
Arlington areas Saturday morning, spreading east onto the High
Plains of eastern Wyoming and western Nebraska by Saturday
Evening. Snow for parts of the area could be heavy at times this
weekend. Travel across the region could be significantly
impacted.

WYZ103>105-109>114-200300-
/O.CON.KCYS.WS.A.0002.180120T1500Z-180121T2100Z/
North Laramie Range-Ferris/Seminoe/Shirley Mountains-
Shirley Basin-Central Carbon County-North Snowy Range Foothills-
Southwest Carbon County-Sierra Madre Range-
Upper North Platte River Basin-Snowy Range-
Including the cities of Garrett, Seminoe Dam, Medicine Bow,
Shirley Basin, Rawlins, Arlington, Elk Mountain, Baggs, Saratoga,
Encampment, Centennial, and Albany
1001 AM MST Fri Jan 19 2018

...WINTER STORM WATCH REMAINS IN EFFECT FROM SATURDAY MORNING
THROUGH SUNDAY AFTERNOON...

* WHAT...Heavy snow possible. Plan on difficult travel conditions.
  Total snow accumulations of 6 to 10 inches expected for lower
  elevations, with new snowfall amounts up to near 2 feet possible
  in the mountains.

* WHERE...Western and northern Carbon county as well as the
  Sierra Madre Range, North Laramie Range, Ferris, Seminoe, and
  Shirley Mountains.

* WHEN...From Saturday morning through Sunday afternoon.

* ADDITIONAL DETAILS...Significant reductions in visibility are
  possible.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Storm Watch means there is potential for significant
snow, sleet or ice accumulations that may impact travel. Continue
to monitor the latest forecasts.

$$

URGENT - WINTER WEATHER MESSAGE
National Weather Service Sioux Falls SD
1056 AM CST Fri Jan 19 2018


SDZ050-053-054-058>060-063>065-068-200300-
/O.CON.KFSD.WS.A.0002.180121T1200Z-180122T1800Z/
Gregory-Sanborn-Miner-Aurora-Davison-Hanson-Charles Mix-Douglas-
Hutchinson-Bon Homme-
1056 AM CST Fri Jan 19 2018

...WINTER STORM WATCH REMAINS IN EFFECT FROM SUNDAY MORNING
THROUGH MONDAY MORNING...

* WHAT...Heavy snow possible. Plan on difficult travel
  conditions. Total snow accumulations of 5 to 8 inches are
  possible.

* WHERE...Portions of east central, south central and southeast
  South Dakota.

* WHEN...From Sunday morning through Monday morning.

* ADDITIONAL DETAILS...Significant reductions in visibility are
  possible.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Storm Watch means there is potential for significant
snow, sleet or ice accumulations that may impact travel. Continue
to monitor the latest forecasts.

$$

URGENT - WINTER WEATHER MESSAGE...UPDATED
National Weather Service North Platte NE
1003 AM CST Fri Jan 19 2018

...SIGNIFICANT WINTER STORM TO AFFECT THE CENTRAL PLAINS...

.A winter storm is predicted to develop across the Central Plains
this weekend. The track of the storm and resultant impacts are
still somewhat uncertain. However, light to moderate snow is
likely and heavy snowfall is possible. Preparations for
significant snow and blowing snow should be undertaken.

NEZ004-005-022-023-035-056-057-094-200015-
/O.CON.KLBF.WS.A.0001.180121T0000Z-180122T0600Z/
Sheridan-Eastern Cherry-Garden-Grant-Arthur-Deuel-Keith-
Western Cherry-
Including the cities of Gordon, Rushville, Valentine, Oshkosh,
Lewellen, Hyannis, Arthur, Chappell, Big Springs, Ogallala,
Paxton, Cody, Eli, Merriman, and Kilgore
1003 AM CST Fri Jan 19 2018 /903 AM MST Fri Jan 19 2018/

...WINTER STORM WATCH REMAINS IN EFFECT FROM SATURDAY EVENING
THROUGH SUNDAY EVENING...

* WHAT...Heavy snow possible. Plan on difficult travel
  conditions. Total snow accumulations of 4 to 6 inches are
  possible.

* WHERE...Garden, Grant, Arthur, Deuel and Keith County.

* WHEN...From Saturday afternoon through Sunday evening.

* ADDITIONAL DETAILS...Significant reductions in visibility are
  possible.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Storm Watch means there is potential for significant
snow, sleet or ice accumulations that may impact travel. Continue
to monitor the latest forecasts.

$$

URGENT - WINTER WEATHER MESSAGE...UPDATED
National Weather Service North Platte NE
1003 AM CST Fri Jan 19 2018

...SIGNIFICANT WINTER STORM TO AFFECT THE CENTRAL PLAINS...

.A winter storm is predicted to develop across the Central Plains
this weekend. The track of the storm and resultant impacts are
still somewhat uncertain. However, light to moderate snow is
likely and heavy snowfall is possible. Preparations for
significant snow and blowing snow should be undertaken.

NEZ006>010-025>029-037-038-059-070-071-200015-
/O.CON.KLBF.WS.A.0001.180121T1200Z-180122T1800Z/
Keya Paha-Boyd-Brown-Rock-Holt-Thomas-Blaine-Loup-Garfield-
Wheeler-Logan-Custer-Lincoln-Hayes-Frontier-
Including the cities of Springview, Spencer, Butte, Lynch,
Ainsworth, Bassett, Rose, Oneill, Atkinson, Thedford, Halsey,
Dunning, Purdum, Brewster, Taylor, Burwell, Bartlett, Ericson,
Stapleton, Broken Bow, North Platte, Hayes Center, Curtis,
Eustis, and Maywood
1003 AM CST Fri Jan 19 2018

...WINTER STORM WATCH REMAINS IN EFFECT FROM SUNDAY MORNING
THROUGH MONDAY MORNING...

* WHAT...Heavy snow possible. Plan on difficult travel
  conditions. Total snow accumulations of 4 to 7 inches, with
  localized amounts up to 8 inches, are possible.

* WHERE...Portions of central Nebraska, north central Nebraska,
  southwest Nebraska and west central Nebraska.

* WHEN...From Sunday morning through Monday morning.

* ADDITIONAL DETAILS...Significant reductions in visibility are
  possible.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Storm Watch means there is potential for significant
snow, sleet or ice accumulations that may impact travel. Continue
to monitor the latest forecasts.

$$

Roberg

URGENT - WINTER WEATHER MESSAGE
National Weather Service Rapid City SD
257 AM MST Fri Jan 19 2018

.A strong winter storm will move across the Rockies and through
the central plains this weekend. Snow will spread into northeast
Wyoming and southwest South Dakota Saturday, with the snow
shifting eastward on Sunday. The heaviest snow is expected in the
southern Black Hills and along the Nebraska border. As winds
increase Sunday, blowing snow will develop across south central
South Dakota

SDZ042>044-046-047-049-192300-
/O.NEW.KUNR.WS.A.0001.180121T0600Z-180122T0600Z/
Oglala Lakota-Jackson-Bennett-Mellette-Todd-Tripp-
Including the cities of Pine Ridge, Oglala, Kyle, Kadoka, Martin,
White River, Mission, and Winner
257 AM MST Fri Jan 19 2018 /357 AM CST Fri Jan 19 2018/

...WINTER STORM WATCH IN EFFECT FROM SATURDAY EVENING THROUGH
SUNDAY EVENING...

* WHAT...Heavy snow and blowing snow possible. Plan on difficult
  travel conditions. Total snow accumulations around 6 inches are
  possible.

* WHERE...Portions of south central and southwestern South
  Dakota.

* WHEN...From Saturday evening through Sunday evening.

* ADDITIONAL DETAILS...Winds gusting as high as 35 mph will
  cause areas of blowing and drifting snow.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Storm Watch means heavy snow, strong winds, freezing
precipitation, and cold temperatures are possible. Monitor NOAA
weather radio, local radio or television, or the Internet for
updates on this potentially dangerous storm.  Take time to
prepare for severe winter conditions before the storm develops.

$$

URGENT - WINTER WEATHER MESSAGE
National Weather Service Rapid City SD
257 AM MST Fri Jan 19 2018

.A strong winter storm will move across the Rockies and through
the central plains this weekend. Snow will spread into northeast
Wyoming and southwest South Dakota Saturday, with the snow
shifting eastward on Sunday. The heaviest snow is expected in the
southern Black Hills and along the Nebraska border. As winds
increase Sunday, blowing snow will develop across south central
South Dakota

SDZ027-029-041-192300-
/O.NEW.KUNR.WS.A.0001.180121T0000Z-180121T1800Z/
Southern Foot Hills-Southern Black Hills-Fall River-
Including the cities of Edgemont, Hot Springs, Custer, Ardmore,
and Oelrichs
257 AM MST Fri Jan 19 2018

...WINTER STORM WATCH IN EFFECT FROM SATURDAY AFTERNOON THROUGH
SUNDAY MORNING...

* WHAT...Heavy snow possible. Plan on difficult travel conditions.
  Total snow accumulations around 6 inches are possible.

* WHERE...The Southern Foot Hills, the Southern Black Hills and
  the Fall River County Plains.

* WHEN...From Saturday afternoon through Sunday morning.

* ADDITIONAL DETAILS...Significant reductions in visibility are
  possible.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Storm Watch means heavy snow, strong winds, freezing
precipitation, and cold temperatures are possible. Monitor NOAA
weather radio, local radio or television, or the Internet for
updates on this potentially dangerous storm.  Take time to
prepare for severe winter conditions before the storm develops.

$$


Special Weather Statement


Special Weather Statement
National Weather Service Riverton WY
525 AM MST Fri Jan 19 2018

WYZ019-020-192000-
Green Mountains and Rattlesnake Range-
Natrona County Lower Elevations-
Including the cities of Jeffrey City and Casper
525 AM MST Fri Jan 19 2018

...Strong Southwest Wind Today followed by a Winter Storm
beginning Late Tonight...

Southwest wind between 20 and 30 mph with gusts around 40 mph
will be common through early afternoon across southeast Fremont
and Natrona counties. A few gusts around 50 mph could occur in
typical windier locations such as along Outer Drive on the south
side of Casper. Lightweight and high profile vehicles should be
especially cautious if traveling along areas highways today. A
winter storm will begin to impact the area after midnight Friday
night with significant snowfall Saturday into Saturday night.
Please see the winter storm watch for more details.

$$

21

Special Weather Statement...CORRECTED
National Weather Service Riverton WY
506 AM MST Fri Jan 19 2018

WYZ011-192300-
Southeast Johnson County-
Including the city of Kaycee
506 AM MST Fri Jan 19 2018

Snow will develop across the area late tonight and continue
through Saturday and even into Saturday night. The most likely
accumulations will be 2 to 5 inches with the highest amounts near
the Natrona County line.

$$


Hazardous Weather Outlook


Hazardous Weather Outlook...CORRECTED
National Weather Service Cheyenne WY
334 AM MST Fri Jan 19 2018

WYZ101>119-201030-
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-
334 AM MST Fri Jan 19 2018

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

.DAY ONE...TODAY AND TONIGHT

Strong west winds gusting to 60 mph may occur this morning along
Interstate 80 near Arlington and Elk Mountain, and Interstate
25 between Chugwater and Wheatland. High Wind Warnings are in
effect until noon today.

Snow will spread east into western Carbon County after midnight
tonight.

.DAYS TWO THROUGH SEVEN...SATURDAY THROUGH THURSDAY

A potent Pacific low pressure system will track northeast from
the Four Corners region into southeast Colorado by Sunday morning.
A strong cold front will progress southeast through the area
Saturday. Snow will continue spreading east onto the high plains
of east and southeast Wyoming by Saturday evening. The snow may
be heavy at times this weekend. Gusty north to northeast winds
may create blowing and drifting snow for areas east of Interstate
25 Saturday night through Sunday. Travel across the region could
be significantly impacted. Winter Storm Watches are in effect from
Saturday morning through Sunday afternoon.

.Spotter information statement...

Spotter activation will not be required at this time.

$$

Hazardous Weather Outlook
National Weather Service Riverton WY
120 AM MST Fri Jan 19 2018

WYZ001>020-022>030-201215-
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-
120 AM MST Fri Jan 19 2018

...Winter Weather Advisory across the Northwest through this
Afternoon...

...Winter Storm Watch for parts of Central and South-Central
Wyoming late tonight through Saturday Night...

This Hazardous Weather Outlook is for Western and Central Wyoming.

.DAY ONE...Today and tonight

Snow continuing in the west, tapering off tonight. Snow will
spread east of the Divide, and into the I-80 corridor tonight.
Please see Winter Weather Products and forecasts for details.

.DAYS TWO THROUGH SEVEN...Saturday through Wednesday

Periods of snow across central and southern Wyoming continuing,
tapering off later Saturday night from northwest to southeast.
Please see Winter Weather products and forecasts for details.

.SPOTTER INFORMATION STATEMENT...

Spotters are urged to report snowfall amounts.

$$

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
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