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Winter Storm Watch


URGENT - WINTER WEATHER MESSAGE
National Weather Service Cheyenne WY
359 AM MST Wed Feb 22 2017

...MAJOR WINTER STORM LIKELY ACROSS MUCH OF SOUTHEAST WYOMING AND
THE WESTERN NEBRASKA PANHANDLE FROM TONIGHT THROUGH FRIDAY
MORNING...

NEZ002-003-019-020-095-096-WYZ101-102-107-108-118-119-221900-
/O.EXT.KCYS.WS.A.0007.170223T0600Z-170224T1800Z/
Dawes-Box Butte-Scotts Bluff-Banner-North Sioux-South Sioux-
Converse County Lower Elevations-Niobrara County-
East Platte County-Goshen County-Central Laramie County-
East Laramie County-
Including the cities of Chadron, Chadron St Park, Alliance,
Scottsbluff, Gering, Harrisburg, Harrison, Agate, Bill, Douglas,
Deer Creek, Glenrock, Lusk, Redbird, Wheatland, Guernsey,
Torrington, Cheyenne, and Pine Bluffs
359 AM MST Wed Feb 22 2017

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

* TIMING...Snow will begin this evening and continue through
  Friday morning. The snow may be heavy at times on Thursday.

* TOTAL SNOW ACCUMULATIONS...8 to 14 inches with locally higher
  amounts possible across much of east central Wyoming and the
  northern Nebraska Panhandle. 6 to 12 inches along a Cheyenne to
  Bridgeport line.

* WINDS/VISIBILITY...East to northeast winds 20 to 30 MPH with
  gusts to 40 MPH expected north of Interstate 80 on Thursday.
  Visibilities will be reduced to one quarter of a mile at times
  in falling and blowing snow.

* IMPACTS...Mainly to transportation. Icy and snow packed roads
  and low visibilities could lead to dangerous or impossible
  travel conditions.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

URGENT - WINTER WEATHER MESSAGE
National Weather Service Cheyenne WY
359 AM MST Wed Feb 22 2017

...MAJOR WINTER STORM LIKELY ACROSS MUCH OF SOUTHEAST WYOMING AND
THE WESTERN NEBRASKA PANHANDLE FROM TONIGHT THROUGH FRIDAY
MORNING...

WYZ103>106-109-110-113-115>117-221900-
/O.EXT.KCYS.WS.A.0007.170223T0000Z-170224T1800Z/
North Laramie Range-Ferris/Seminoe/Shirley Mountains-
Shirley Basin-Central Laramie Range and Southwest Platte County-
Central Carbon County-North Snowy Range Foothills-
Upper North Platte River Basin-Laramie Valley-South Laramie Range-
South Laramie Range Foothills-
Including the cities of Garrett, Seminoe Dam, Medicine Bow,
Shirley Basin, Bordeaux, Rawlins, Arlington, Elk Mountain,
Saratoga, Encampment, Bosler, Laramie, Buford, Pumpkin Vine,
Vedauwoo, Whitaker, Federal, and Horse Creek
359 AM MST Wed Feb 22 2017

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

* TIMING...Snow will begin by late this afternoon or early evening
  and continue through Friday morning. The snow may be heavy at
  times on Thursday.

* TOTAL SNOW ACCUMULATIONS...4 to 8 inches in the Laramie Valley,
  otherwise 6 to 12 inches in lower elevations west of the
  Laramie Range. 12 to 18 inches over the southern and central
  Laramie Range. Up to 2 feet of snow is possible over the
  northern Laramie Range.

* WINDS/VISIBILITY...East to northeast winds 10 to 20 MPH with
  higher gusts. Visibilities may be reduced to under one half mile
  at times in falling and blowing snow.

* IMPACTS...Mainly to transportation. Icy and snow packed roads
  and low visibilities could lead to dangerous or impossible
  travel conditions.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

URGENT - WINTER WEATHER MESSAGE
National Weather Service Rapid City SD
338 AM MST Wed Feb 22 2017

.A storm system will move across the Pacific Northwest today and
strengthen as it moves across the Northern Rockies tonight. The
system will then track east across portions of the northern and
central Plains Thursday into Friday. Snowfall will develop across
northeast Wyoming and southwest South Dakota late tonight and move
across much of South Dakota on Thursday. A band of heavy snowfall
is expected to develop across portions of eastern Wyoming,
southern South Dakota, and northern Nebraska Thursday into
Thursday evening, with 6 inches or more of snowfall possible. The
exact track of this heavier snowfall is still uncertain at this
time, but the more favorable areas for this heavy snow to develop
look to be across southern portions of northeast Wyoming and far
southern South Dakota into Nebraska. Snowfall will begin to taper
off from west to east later Thursday night and Friday morning.
Monitor NOAA Weather Radio or local media for the latest
information...forecasts...and warnings.

SDZ024-025-032-072-073-230145-
/O.EXA.KUNR.WS.A.0003.170223T1300Z-170224T1900Z/
Northern Black Hills-Northern Foot Hills-Haakon-
Sturgis/Piedmont Foot Hills-Southern Meade Co Plains-
Including the cities of Lead, Deadwood, Spearfish, Philip,
Sturgis, and Union Center
338 AM MST Wed Feb 22 2017

...WINTER STORM WATCH IN EFFECT FROM THURSDAY MORNING THROUGH
FRIDAY MORNING...

The National Weather Service in Rapid City has issued a Winter
Storm Watch, which is in effect from Thursday morning through
Friday morning.

* TIMING...Snow will begin early Thursday morning and continue
  into Thursday night. Snow will end late Thursday night into
  Friday morning.

* MAIN IMPACT...Snowfall amounts of around 6 inches are possible.

* OTHER IMPACTS...Slippery and hazardous road conditions will be
  possible. Travel may be difficult at times. Patchy blowing snow
  is possible across the plains Thursday afternoon into Friday.

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
338 AM MST Wed Feb 22 2017

.A storm system will move across the Pacific Northwest today and
strengthen as it moves across the Northern Rockies tonight. The
system will then track east across portions of the northern and
central Plains Thursday into Friday. Snowfall will develop across
northeast Wyoming and southwest South Dakota late tonight and move
across much of South Dakota on Thursday. A band of heavy snowfall
is expected to develop across portions of eastern Wyoming,
southern South Dakota, and northern Nebraska Thursday into
Thursday evening, with 6 inches or more of snowfall possible. The
exact track of this heavier snowfall is still uncertain at this
time, but the more favorable areas for this heavy snow to develop
look to be across southern portions of northeast Wyoming and far
southern South Dakota into Nebraska. Snowfall will begin to taper
off from west to east later Thursday night and Friday morning.
Monitor NOAA Weather Radio or local media for the latest
information...forecasts...and warnings.

SDZ026-028-031-043-046-047-049-230145-
/O.CON.KUNR.WS.A.0003.170223T1300Z-170224T1900Z/
Rapid City-Central Black Hills-Pennington Co Plains-Jackson-
Mellette-Todd-Tripp-
Including the cities of Rapid City, Hill City, Mt Rushmore, Wall,
Kadoka, White River, Mission, and Winner
338 AM MST Wed Feb 22 2017 /438 AM CST Wed Feb 22 2017/

...WINTER STORM WATCH REMAINS IN EFFECT FROM THURSDAY MORNING
THROUGH FRIDAY MORNING...

* TIMING...Snow will begin early Thursday morning and continue
  into Thursday night. Snow will taper off from west to east late
  Thursday night into Friday morning.

* MAIN IMPACT...Snowfall amounts of around 6 inches are possible
  across much of the Black Hills and the west central South Dakota
  plains, with snowfall amounts to around a foot likely across
  south central South Dakota.

* OTHER IMPACTS...Slippery and hazardous road conditions will be
  possible. Travel may be difficult at times. Some areas of
  blowing snow are possible across the plains Thursday afternoon
  into Friday.

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
338 AM MST Wed Feb 22 2017

.A storm system will move across the Pacific Northwest today and
strengthen as it moves across the Northern Rockies tonight. The
system will then track east across portions of the northern and
central Plains Thursday into Friday. Snowfall will develop across
northeast Wyoming and southwest South Dakota late tonight and move
across much of South Dakota on Thursday. A band of heavy snowfall
is expected to develop across portions of eastern Wyoming,
southern South Dakota, and northern Nebraska Thursday into
Thursday evening, with 6 inches or more of snowfall possible. The
exact track of this heavier snowfall is still uncertain at this
time, but the more favorable areas for this heavy snow to develop
look to be across southern portions of northeast Wyoming and far
southern South Dakota into Nebraska. Snowfall will begin to taper
off from west to east later Thursday night and Friday morning.
Monitor NOAA Weather Radio or local media for the latest
information...forecasts...and warnings.

SDZ027-029-030-041-042-044-074-WYZ055-058-230145-
/O.CON.KUNR.WS.A.0003.170223T0700Z-170224T1900Z/
Southern Foot Hills-Southern Black Hills-Custer Co Plains-
Fall River-Oglala Lakota-Bennett-Hermosa Foot Hills-
Southern Campbell-Weston-
Including the cities of Edgemont, Hot Springs, Custer, Folsom,
Ardmore, Oelrichs, Pine Ridge, Oglala, Kyle, Martin, Hermosa,
Wright, Newcastle, and Upton
338 AM MST Wed Feb 22 2017

...WINTER STORM WATCH REMAINS IN EFFECT FROM LATE TONIGHT THROUGH
FRIDAY MORNING...

* TIMING...Snow will begin late Wednesday night and continue
  through Thursday evening. Snow will taper off late Thursday
  night into Friday morning.

* MAIN IMPACT...Snowfall amounts of more than 6 inches are likely
  across the area. The highest amounts of snowfall are forecast to
  be south of Wright and Newcastle in northeast Wyoming and
  across far southern South Dakota.

* OTHER IMPACTS...Slippery and hazardous road conditions will be
  possible. Travel may be difficult at times. Patchy blowing snow
  is possible across the plains Thursday afternoon into Friday.

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 Billings MT
306 AM MST Wed Feb 22 2017

MTZ038-056-066-WYZ099-231015-
/O.NEW.KBYZ.WS.A.0003.170223T0100Z-170224T1800Z/
Southern Big Horn-Red Lodge Foothills-Beartooth Foothills-
Sheridan Foothills-
306 AM MST Wed Feb 22 2017

...WINTER STORM WATCH IN EFFECT FROM THIS EVENING THROUGH FRIDAY
MORNING...

The National Weather Service in Billings has issued a Winter
Storm Watch...which is in effect from this evening through Friday
morning.

* IMPACTS...Poor travel conditions due to snow covered roads and
  limited visibility. Cold and wet weather may be hazardous to
  young livestock.

* TIMING...Tonight through Friday morning.

* SNOW ACCUMULATION...6 to 12 inches possible, greatest along the
  northeast slopes of the Beartooth, Pryor and Bighorn Mountains.

Precautionary/preparedness actions...

A Winter Storm Watch is issued when severe winter weather is
possible but not imminent. At this time there is a potential for
significant snow. Future driving and walking conditions may become
hazardous so it is important to monitor the latest forecasts.

&&

$$

http://weather.gov/billings

URGENT - WINTER WEATHER MESSAGE
National Weather Service Riverton WY
252 AM MST Wed Feb 22 2017

...Heavy snow may impact Central and Southern Wyoming Late
Wednesday night through mid day Friday...

.A strong winter storm will likely deliver a heavy dose of
snowfall to much of Central and Southern Wyoming from late
Wednesday night through midday Friday. The heaviest snowfall
should occur between the predawn hours Thursday and early Thursday
afternoon. In addition, strong north to northeast winds may
result in considerable blowing and drifting snow from Johnson to
eastern Sweetwater Counties, including Natrona and southeast
Fremont Counties.

WYZ009-010-230000-
/O.EXA.KRIW.WS.A.0012.170223T0600Z-170224T1800Z/
Bighorn Mountains Southeast-Northeast Johnson County-
Including the city of Buffalo
252 AM MST Wed Feb 22 2017

...WINTER STORM WATCH IN EFFECT FROM THIS EVENING THROUGH FRIDAY
MORNING...

The National Weather Service in Riverton has issued a Winter
Storm Watch, which is in effect from this evening through Friday
morning.

* TIMING...Snow will develop Wednesday night, with periods of snow
  expected through Friday morning. The heaviest snowfall should
  occur between the predawn hours Thursday and early Thursday
  afternoon.

* SNOWFALL ACCUMULATION...8 to 12 inches near Powder River Pass
  and over the southern end of the mountains. 4 to 6 inches in the
  lower elevations.

* MAIN IMPACT...Roads may become slick and snow covered. Gusty
  north winds could cause blowing and drifting snow Thursday. The
  visibility may become significantly reduced in blowing snow.


PRECAUTIONARY/PREPAREDNESS ACTIONS...

A winter storm watch means there is a potential for significant
snow and/or blowing snow that may impact travel. Continue to
monitor the latest forecasts.

&&

$$

URGENT - WINTER WEATHER MESSAGE
National Weather Service Riverton WY
252 AM MST Wed Feb 22 2017

...Heavy snow may impact Central and Southern Wyoming Late
Wednesday night through mid day Friday...

.A strong winter storm will likely deliver a heavy dose of
snowfall to much of Central and Southern Wyoming from late
Wednesday night through midday Friday. The heaviest snowfall
should occur between the predawn hours Thursday and early Thursday
afternoon. In addition, strong north to northeast winds may
result in considerable blowing and drifting snow from Johnson to
eastern Sweetwater Counties, including Natrona and southeast
Fremont Counties.

WYZ020-022-230000-
/O.CON.KRIW.WS.A.0012.170223T0600Z-170224T1800Z/
Natrona County Lower Elevations-Casper Mountain-
Including the city of Casper
252 AM MST Wed Feb 22 2017

...WINTER STORM WATCH REMAINS IN EFFECT FROM THIS EVENING THROUGH
FRIDAY MORNING...

* TIMING...Snow will develop Wednesday night, and may become heavy
  at times from the predawn hours Thursday through early Thursday
  afternoon. Snow will continue through Thursday night, before
  subsiding by mid day Friday.

* SNOWFALL ACCUMULATION...Ranging from up to 2 feet on Casper
  Mountain, with 12 to 16 inches across Natrona County.

* MAIN IMPACT...Roads will become slick and snow covered. Gusty
  northerly winds will develop early Thursday morning, causing
  blowing and drifting snow. This could significantly reduce
  visibility and make travel difficult to impossible.


PRECAUTIONARY/PREPAREDNESS ACTIONS...

A winter storm watch means there is a potential for significant
snow and/or blowing snow that may impact travel. Continue to
monitor the latest forecasts.

&&

$$

URGENT - WINTER WEATHER MESSAGE
National Weather Service Riverton WY
252 AM MST Wed Feb 22 2017

...Heavy snow may impact Central and Southern Wyoming Late
Wednesday night through mid day Friday...

.A strong winter storm will likely deliver a heavy dose of
snowfall to much of Central and Southern Wyoming from late
Wednesday night through midday Friday. The heaviest snowfall
should occur between the predawn hours Thursday and early Thursday
afternoon. In addition, strong north to northeast winds may
result in considerable blowing and drifting snow from Johnson to
eastern Sweetwater Counties, including Natrona and southeast
Fremont Counties.

WYZ011-230000-
/O.CON.KRIW.WS.A.0012.170223T0600Z-170224T1800Z/
Southeast Johnson County-
Including the city of Kaycee
252 AM MST Wed Feb 22 2017

...WINTER STORM WATCH REMAINS IN EFFECT FROM THIS EVENING THROUGH
FRIDAY MORNING...

* TIMING...Snow will develop Wednesday night, and may become heavy
  at times from the predawn hours Thursday through early Thursday
  afternoon. Snow will continue through Thursday night, before
  subsiding by mid day Friday.

* SNOWFALL ACCUMULATION...6 to 10 inches with the heaviest
  snowfall expected near the Natrona County line.

* MAIN IMPACT...Roads will be slick and snow covered. Gusty north
  winds could cause blowing and drifting snow Thursday. The
  visibility may become significantly reduced in blowing snow.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A winter storm watch means there is a potential for significant
snow and/or blowing snow that may impact travel. Continue to
monitor the latest forecasts.

&&

$$

URGENT - WINTER WEATHER MESSAGE
National Weather Service Sioux Falls SD
337 AM CST Wed Feb 22 2017

SDZ050-057-058-063-064-221745-
/O.EXT.KFSD.WS.A.0003.170223T1800Z-170225T0000Z/
Gregory-Brule-Aurora-Charles Mix-Douglas-
337 AM CST Wed Feb 22 2017

...WINTER STORM WATCH NOW IN EFFECT FROM THURSDAY AFTERNOON
THROUGH FRIDAY AFTERNOON...

* TIMING...Snow will spread into the area by midday Thursday, then
  continue heavy at times Thursday night into Friday. Snow should
  diminish Friday afternoon.

* ACCUMULATIONS...Storm total snow accumulations of 6 to 12 inches
  are likely, with amounts in excess of 12 inches possible.

* WIND AND VISIBILITY...Winds will increase from the north
  around 20 to 35 mph on Thursday night and Friday. Visibility
  is expected to be reduced to less than a half mile at times
  while snow is falling.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Storm Watch means there is a 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 North Platte NE
321 AM CST Wed Feb 22 2017

...Accumulating snow and winter storm conditions are likely
beginning tonight and lasting through Friday afternoon...

.A strong upper level trough of low pressure will track across the
central Rockies today. As this emerges onto the plains tonight,
rain will initially develop across northwestern Nebraska. As
colder air pushes into western and north central Nebraska
overnight tonight into Thursday, rain will change over to snow
from northwest to southeast. By Friday morning there is the
potential for 6 to 15 inches of snow across the sandhills and
north central Nebraska. In addition to snow, northerly winds will
increase Thursday night, leading to areas of blowing snow.

NEZ005>010-022>029-035>037-222330-
/O.CON.KLBF.WS.A.0003.170223T1200Z-170225T0000Z/
Eastern Cherry-Keya Paha-Boyd-Brown-Rock-Holt-Garden-Grant-Hooker-
Thomas-Blaine-Loup-Garfield-Wheeler-Arthur-McPherson-Logan-
Including the cities of Valentine, Springview, Spencer, Butte,
Lynch, Ainsworth, Bassett, Rose, Oneill, Atkinson, Oshkosh,
Lewellen, Hyannis, Mullen, Thedford, Halsey, Dunning, Purdum,
Brewster, Taylor, Burwell, Bartlett, Ericson, Arthur, Tryon,
Ringgold, and Stapleton
321 AM CST Wed Feb 22 2017 /221 AM MST Wed Feb 22 2017/

...WINTER STORM WATCH REMAINS IN EFFECT FROM THURSDAY MORNING
THROUGH FRIDAY AFTERNOON...

A Winter Storm Watch remains in effect from Thursday morning
through Friday afternoon.

* TIMING...Rain will change over to snow Thursday and continue
  into Friday morning.

* SNOW ACCUMULATIONS...Storm total accumulations of 6 to 15
  inches, with the higher amounts expected near and north of
  Highways 2 and 91.

* WIND...Northeast winds on Thursday turn to the north Thursday
  evening. Wind speeds of 10 to 20 MPH with gusts up to 30 MPH
  possible.

* IMPACTS...Travel will become difficult by Thursday into
  Thursday night due to falling snow and blowing snow.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Storm Watch means there is a 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 North Platte NE
321 AM CST Wed Feb 22 2017

...Accumulating snow and winter storm conditions are likely
beginning tonight and lasting through Friday afternoon...

.A strong upper level trough of low pressure will track across the
central Rockies today. As this emerges onto the plains tonight,
rain will initially develop across northwestern Nebraska. As
colder air pushes into western and north central Nebraska
overnight tonight into Thursday, rain will change over to snow
from northwest to southeast. By Friday morning there is the
potential for 6 to 15 inches of snow across the sandhills and
north central Nebraska. In addition to snow, northerly winds will
increase Thursday night, leading to areas of blowing snow.

NEZ004-094-222330-
/O.CON.KLBF.WS.A.0003.170223T0600Z-170225T0000Z/
Sheridan-Western Cherry-
Including the cities of Gordon, Rushville, Cody, Eli, Merriman,
and Kilgore
321 AM CST Wed Feb 22 2017 /221 AM MST Wed Feb 22 2017/

...WINTER STORM WATCH REMAINS IN EFFECT FROM LATE TONIGHT THROUGH
FRIDAY AFTERNOON...

A Winter Storm Watch remains in effect from late tonight through
Friday afternoon.

* TIMING...Rain will change over to snow overnight tonight,
  continuing Thursday and Thursday night.

* SNOW ACCUMULATIONS...Storm total accumulations of 10 to 15
  inches are possible.

* WIND...Northeast winds shifting to the north Thursday evening.
  Wind speeds of 10 to 20 MPH with gusts up to 25 MPH are
  possible.

* IMPACTS...Travel will become difficult by Thursday into
  Thursday night due to falling snow and blowing snow.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Storm Watch means there is a 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 Aberdeen SD
258 AM CST Wed Feb 22 2017

...Winter storm trending north could now impact central and
northeast South Dakota...


SDZ033-035>037-045-048-051-221700-
/O.NEW.KABR.WS.A.0002.170223T1800Z-170224T1800Z/
Stanley-Hughes-Hyde-Hand-Jones-Lyman-Buffalo-
Including the cities of Mission Ridge, Pierre, Highmore, Miller,
Murdo, Kennebec, and Fort Thompson
258 AM CST Wed Feb 22 2017 /158 AM MST Wed Feb 22 2017/

...WINTER STORM WATCH IN EFFECT FROM THURSDAY AFTERNOON THROUGH
FRIDAY MORNING...

The National Weather Service in Aberdeen has issued a Winter
Storm Watch...which is in effect from Thursday afternoon through
Friday morning.

* Timing...snow is expected from Thursday afternoon through
  Friday morning.

* Snow Accumulations...There is the potential for accumulations of
  5 to 12 inches. Periods of heavy snow with accumulations of 1
  to 2 inches per hour are also possible.

* Winds / Visibilities...Significant reductions in visibility due
  to the combination of heavy snow and northeast winds gusting to
  40 to 50mph Thursday night into Friday.

* Impacts...Plan on difficult driving conditions.

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.

&&

$$


Hazardous Weather Outlook


Hazardous Weather Outlook
National Weather Service Bismarck ND
657 AM CST Wed Feb 22 2017

NDZ045-046-050-231300-
Sioux-Emmons-McIntosh-
657 AM CST Wed Feb 22 2017 /557 AM MST Wed Feb 22 2017/

This Hazardous Weather Outlook is for portions of south central
North Dakota and southeast North Dakota.

.DAY ONE...Today and Tonight

There is a slight chance of thunderstorms early this morning.

A mix of light snow, rain, and possibly sleet is forecast today.
Minor snow accumulations less than an inch are possible.
Precipitation will decrease this afternoon.

.DAYS TWO THROUGH SEVEN...Thursday through Tuesday

The probability for widespread hazardous weather is low.

.SPOTTER INFORMATION STATEMENT...

Spotter activation will not be needed.

$$

CJS

Hazardous Weather Outlook
National Weather Service Bismarck ND
657 AM CST Wed Feb 22 2017

NDZ001>005-009>013-017>023-025-031>037-040>044-047-048-051-231300-
Divide-Burke-Renville-Bottineau-Rolette-Williams-Mountrail-Ward-
McHenry-Pierce-McKenzie-Dunn-Mercer-Oliver-McLean-Sheridan-Wells-
Foster-Golden Valley-Billings-Stark-Morton-Burleigh-Kidder-
Stutsman-Slope-Hettinger-Grant-Bowman-Adams-Logan-La Moure-Dickey-
657 AM CST Wed Feb 22 2017 /557 AM MST Wed Feb 22 2017/

This Hazardous Weather Outlook is for portions of north central
North Dakota, northwest North Dakota, south central North Dakota,
southeast North Dakota, and southwest North Dakota.

.DAY ONE...Today and Tonight

A mix of light snow, rain, and possibly sleet is forecast today.
Minor snow accumulations up to an inch are possible. Precipitation
will decrease this afternoon.

.DAYS TWO THROUGH SEVEN...Thursday through Tuesday

The probability for widespread hazardous weather is low.

.SPOTTER INFORMATION STATEMENT...

Spotter activation will not be needed.

$$

Hazardous Weather Outlook
National Weather Service Rapid City SD
521 AM MST Wed Feb 22 2017

SDZ027-041>044-046-047-049-231400-
Southern Foot Hills-Fall River-Oglala Lakota-Jackson-Bennett-
Mellette-Todd-Tripp-
521 AM MST Wed Feb 22 2017 /621 AM CST Wed Feb 22 2017/

This Hazardous weather outlook is for portions of south central
South Dakota...and western South Dakota.

.DAY ONE...Today and Tonight

Snow will develop late tonight and continue through Thursday.

.DAYS TWO THROUGH SEVEN...Thursday through Tuesday

A winter storm will affect the region Thursday, with snow
diminishing Friday morning. Accumulations of over 12 inches are
possible. A winter storm watch is in effect.

.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
521 AM MST Wed Feb 22 2017

SDZ012>014-WYZ054-056-057-071-231400-
Butte-Northern Meade Co Plains-Ziebach-Northern Campbell-
Western Crook-Wyoming Black Hills-Northeastern Crook-
521 AM MST Wed Feb 22 2017

This Hazardous weather outlook is for portions of western South
Dakota...northeast Wyoming...and the Black Hills of Wyoming.

.DAY ONE...Today and Tonight

Snow will develop late tonight and continue into Thursday.

.DAYS TWO THROUGH SEVEN...Thursday through Tuesday

A winter storm will affect the region Thursday, with snow
diminishing Thursday night or Friday morning. 2 to 4 inches
of accumulation are possible.

.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
521 AM MST Wed Feb 22 2017

SDZ024>026-028>032-072>074-WYZ055-058-231400-
Northern Black Hills-Northern Foot Hills-Rapid City-
Central Black Hills-Southern Black Hills-Custer Co Plains-
Pennington Co Plains-Haakon-Sturgis/Piedmont Foot Hills-
Southern Meade Co Plains-Hermosa Foot Hills-Southern Campbell-
Weston-
521 AM MST Wed Feb 22 2017

This Hazardous weather outlook is for portions of the Black Hills
of South Dakota...western South Dakota...and northeast Wyoming.

.DAY ONE...Today and Tonight

Snow will develop late tonight and continue into Thursday.

.DAYS TWO THROUGH SEVEN...Thursday through Tuesday

A winter storm will affect the region Thursday, with snow
diminishing Thursday night or Friday morning. Accumulations of
over 6 inches are possible. A winter storm watch is in effect.

.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 Billings MT
442 AM MST Wed Feb 22 2017

MTZ028>042-056>058-063>068-WYZ098-099-231145-
Southern Wheatland-Musselshell-Treasure-Northern Rosebud-Custer-
Fallon-Northern Stillwater-Yellowstone-Powder River-Carter-
Southern Big Horn-Eastern Carbon-Northern Park-
Northern Sweet Grass-Golden Valley-Red Lodge Foothills-
Northern Big Horn-Southern Rosebud-Judith Gap-Paradise Valley-
Livingston Area-Beartooth Foothills-Absaroka/Beartooth Mountains-
Crazy Mountains-Northeast Bighorn Mountains-Sheridan Foothills-
442 AM MST Wed Feb 22 2017

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

* Significant Weather Change: A Canadian cold front will usher in
  colder air today, marking the beginning of a pattern change which
  will result in below normal temperatures through at least early
  next week.

* Snowfall: Heavy snow is possible along the north and east facing
  slopes of area mountains tonight into Friday. Places like Red
  Lodge and Sheridan could see several inches of snowfall. Places
  away from the foothills could also see some snow accumulation
  over the next couple days.

* Potential Wintry Impacts: Poor driving conditions. Hazardous
  conditions for young livestock.

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 Cheyenne WY
421 AM MST Wed Feb 22 2017

NEZ002-003-019>021-054-055-095-096-WYZ101-102-107-108-117>119-
231130-
Dawes-Box Butte-Scotts Bluff-Banner-Morrill-Kimball-Cheyenne-
North Sioux-South Sioux-Converse County Lower Elevations-
Niobrara County-East Platte County-Goshen County-
South Laramie Range Foothills-Central Laramie County-
East Laramie County-
421 AM MST Wed Feb 22 2017

This hazardous weather outlook is for western Nebraska and for
southeast Wyoming along and east of Interstate 25.

.DAY ONE...TODAY AND TONIGHT

Widespread accumulating snow will begin tonight and continue
through early Friday. A Winter Storm Watch is in effect for the
eastern plains of southeast Wyoming and western Nebraska for
significant snow accumulations beginning after midnight tonight.
Please refer to the Winter Storm Watch for additional details.

.DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY

Widespread accumulating snow will continue Thursday and possibly
into early Friday. East to northeast winds will increase between
15 to 25 MPH with higher gusts on Thursday resulting in drifting
snow but also some patchy blowing snow at times. The heaviest snow
accumulations should be north of Interstate 80.

.Spotter information statement...

Spotters are urged to report snow accumulations Thursday and
Friday.

$$

Hazardous Weather Outlook
National Weather Service Cheyenne WY
421 AM MST Wed Feb 22 2017

WYZ103>106-109>116-231130-
North Laramie Range-Ferris/Seminoe/Shirley Mountains-
Shirley Basin-Central Laramie Range and Southwest Platte 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-
421 AM MST Wed Feb 22 2017

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

.DAY ONE...TODAY AND TONIGHT

Widespread accumulating snow will redevelop this afternoon with
periods of snow continuing through the night outside the
mountains. A Winter Storm Watch is in effect for all of Carbon and
Albany county across southeast Wyoming for significant snow
accumulations beginning this afternoon and this evening. Please
refer to the Winter Storm Watch for additional details.

.DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY

Widespread accumulating snow will continue Thursday and possibly
into early Friday. Wind direction will be variable Thursday and
Thursday night since the low pressure system will be over the
area...but will gust between 20 to 30 MPH at times resulting in
drifting snow but also some patchy blowing snow at times.

.Spotter information statement...

Spotters are urged to report snow accumulations Thursday and
Friday.

$$

Hazardous Weather Outlook
National Weather Service Riverton WY
414 AM MST Wed Feb 22 2017

WYZ001>020-022>030-231300-
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-
414 AM MST Wed Feb 22 2017

...Flood Warning remains in effect for the Big Horn River roughly
between Manderson and Greybull through at least this afternoon...

...Winter Storm Watches across much of the central and southern
Wyoming late tonight through Friday morning...

...High Wind Warning for the Cody Foothills through this morning...

This Hazardous Weather Outlook is for Western and Central Wyoming.

.DAY ONE...Today and Tonight

Ice jam flooding continues across portions of the Big Horn Basin
especially along the Big Horn River in Big Horn County.

Strong wind will continue across the Cody Foothills this morning.

A significant winter storm will develop tonight over southern
portions, bringing moderate to heavy snow across eastern, central
and southern portions of the forecast area. Please see the
highlights for further details.

.DAYS TWO THROUGH SEVEN...Thursday through Tuesday

Thursday and Friday...Significant snow will fall during the day
Thursday across Johnson, Natrona, Fremont and Sweetwater counties,
before subsiding by mid day Friday. The heaviest snow is expected
across Natrona County and eastern portions of Fremont and Natrona
counties. Gusty north to northeast winds will develop Thursday
morning, from Buffalo to Casper to South Pass to Rock Springs,
causing areas of blowing and drifting snow. Winds will gradually
subside Thursday night. Light to moderate snow will also return
across the far western mountains.

Sunday night through Monday night...Significant snow possible
across western valleys and mountains.

.SPOTTER INFORMATION STATEMENT...

Spotters are encouraged to report any river or creek flooding, as
well as snowfall amounts. Thank you!

$$

Team Riverton

Hazardous Weather Outlook
National Weather Service North Platte NE
437 AM CST Wed Feb 22 2017

NEZ004>010-022>029-035>038-056>059-069>071-094-231045-
Sheridan-Eastern Cherry-Keya Paha-Boyd-Brown-Rock-Holt-Garden-
Grant-Hooker-Thomas-Blaine-Loup-Garfield-Wheeler-Arthur-McPherson-
Logan-Custer-Deuel-Keith-Perkins-Lincoln-Chase-Hayes-Frontier-
Western Cherry-
437 AM CST Wed Feb 22 2017 /337 AM MST Wed Feb 22 2017/

This Hazardous Weather Outlook is for portions of western and
north central Nebraska.

.DAY ONE...TODAY AND TONIGHT.

Elevated fire danger is likely this afternoon across all of
western and north central Nebraska.

A winter storm system will begin to affect the region late
tonight, as rain quickly changes over to snow across the
northwest sandhills.

.DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY.

A winter storm system will continue to affect the region Thursday
into Friday. Snow will spread east on Thursday, impacting the
sandhills and north central Nebraska. At this time, the greatest
threat for accumulating snow is along and north of Interstate 80,
with heavy accumulations expected across north central Nebraska.

.SPOTTER INFORMATION STATEMENT...

Spotter activation will not be needed through tonight.

&&

Get your weather, hydrological, and climate information at
http://www.weather.gov/northplatte

$$

KAR

Hazardous Weather Outlook
National Weather Service Aberdeen SD
338 AM CST Wed Feb 22 2017

MNZ039-046-SDZ003>011-015>023-033>037-045-048-051-230945-
Traverse-Big Stone-Corson-Campbell-McPherson-Brown-Marshall-
Roberts-Walworth-Edmunds-Day-Dewey-Potter-Faulk-Spink-Clark-
Codington-Grant-Hamlin-Deuel-Stanley-Sully-Hughes-Hyde-Hand-Jones-
Lyman-Buffalo-
338 AM CST Wed Feb 22 2017 /238 AM MST Wed Feb 22 2017/

This Hazardous Weather Outlook is for portions of west central
Minnesota, central South Dakota, north central South Dakota, and
northeast South Dakota.

.DAY ONE...Today and Tonight

Showers and Thundershowers will continue to pass through the
forecast area through the morning and afternoon hours. No
hazardous weather is expected with these showers.

.DAYS TWO THROUGH SEVEN...Thursday through Tuesday

We continue to monitor a storm system that will rapidly intensity
as it moves into the Central Plains Thursday. Recent model runs
have trended the storm track northward, and as such we now have
the potential to see significant accumulations along and south of
highway 14 in central South Dakota and for much of northeast
South Dakota and western Minnesota. There still remains a high
degree of uncertainty as to how far north accumulating snow will
fall, as well as how far north the heaviest snow will extend.
Strong winds are also expected around this system, particularly
Thursday night and Friday. With falling snow and strong winds,
expect poor visibility and hazardous travel conditions.
Improvement is expected during the day Friday as the system moves
to the east.

.SPOTTER INFORMATION STATEMENT...

Spotter activation will not be needed.

$$

Connelly

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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