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Winter Storm Warning


URGENT - WINTER WEATHER MESSAGE
National Weather Service Rapid City SD
302 AM MDT Tue Oct 19 2021

WYZ055-200015-
/O.EXT.KUNR.WS.W.0009.211019T1800Z-211020T1200Z/
Southern Campbell-
Including Wright
302 AM MDT Tue Oct 19 2021

...WINTER STORM WARNING NOW IN EFFECT FROM NOON TODAY TO 6 AM MDT
WEDNESDAY...

* WHAT...Heavy snow expected. Total snow accumulations of 4 to 8
  inches. Winds gusting as high as 35 mph.

* WHERE...Southern Campbell County.

* WHEN...From noon today to 6 AM MDT Wednesday.

* IMPACTS...Travel could be very difficult.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Storm Warning for snow means severe winter weather
conditions are expected. This will create dangerous conditions.

Road conditions are available on your smartphone from the
5 1 1 app for your state.

&&

$$

URGENT - WINTER WEATHER MESSAGE
National Weather Service Riverton WY
945 PM MDT Mon Oct 18 2021

WYZ008-009-191230-
/O.CON.KRIW.WS.W.0011.211019T0900Z-211020T0500Z/
Bighorn Mountains West-Bighorn Mountains Southeast-
945 PM MDT Mon Oct 18 2021

...WINTER STORM WARNING REMAINS IN EFFECT FROM 3 AM TO 11 PM MDT
TUESDAY...

* WHAT...Heavy snow. Total accumulations across the southern-
  third of the Bighorn Range will reach 10 to 16 inches.
  Widespread totals of 6 to 12 inches.

* WHERE...Bighorn Mountains.

* WHEN...From 3 AM to 11 PM MDT Tuesday.

* IMPACTS...Travel could be very difficult, especially on US 16
  over Powder River Pass. Mountain recreation is not recommended.

* ADDITIONAL DETAILS...Snowfall will be heaviest south of US
  Highway 16, with totals tapering off to just a few inches over
  the north end of the range near Medicine Wheel and Bald
  Mountain.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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 Rapid City SD
302 AM MDT Tue Oct 19 2021

WYZ054-200015-
/O.EXB.KUNR.WW.Y.0012.211019T2100Z-211020T1200Z/
Northern Campbell-
302 AM MDT Tue Oct 19 2021

...WINTER WEATHER ADVISORY IN EFFECT FROM 3 PM THIS AFTERNOON TO
6 AM MDT WEDNESDAY...

* WHAT...Wet snow expected. Total snow accumulations of 2 to 4
  inches. Winds gusting as high as 35 mph.

* WHERE...Northern Campbell County.

* WHEN...From 3 PM this afternoon to 6 AM MDT Wednesday.

* IMPACTS...Plan on slippery road conditions.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Slow down and use caution while traveling.

Road conditions are available on your smartphone from the
5 1 1 app for your state.

&&

$$

URGENT - WINTER WEATHER MESSAGE
National Weather Service Rapid City SD
302 AM MDT Tue Oct 19 2021

WYZ058-200015-
/O.EXT.KUNR.WW.Y.0012.211019T2100Z-211020T1200Z/
Weston-
Including Upton
302 AM MDT Tue Oct 19 2021

...WINTER WEATHER ADVISORY NOW IN EFFECT FROM 3 PM THIS AFTERNOON
TO 6 AM MDT WEDNESDAY...

* WHAT...Snow expected. Total snow accumulations of 2 to 5
  inches.

* WHERE...The Weston County Plains.

* WHEN...From 3 PM this afternoon to 6 AM MDT Wednesday.

* IMPACTS...Plan on slippery road conditions.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Slow down and use caution while traveling.

Road conditions are available on your smartphone from the
5 1 1 app for your state.

&&

$$

URGENT - WINTER WEATHER MESSAGE
National Weather Service Rapid City SD
302 AM MDT Tue Oct 19 2021

SDZ024-028-029-WYZ057-200015-
/O.EXT.KUNR.WW.Y.0012.211019T2100Z-211020T1200Z/
Northern Black Hills-Central Black Hills-Southern Black Hills-
Wyoming Black Hills-
Including Lead, Deadwood, Brownsville, Cheyenne Crossing, Galena,
Nemo, Hill City, Mt Rushmore, Deerfield, Hisega, Mystic,
Pactola Reservoir, Rochford, Rockerville, Custer, Jewel Cave,
Pringle, Custer State Park, Wind Cave, Sundance, Aladdin, Beulah,
and Four Corners
302 AM MDT Tue Oct 19 2021

...WINTER WEATHER ADVISORY NOW IN EFFECT FROM 3 PM THIS AFTERNOON
TO 6 AM MDT WEDNESDAY...

* WHAT...Snow expected. Total snow accumulations of 4 to 6
  inches. Winds gusting as high as 35 mph.

* WHERE...In South Dakota, the Northern Black Hills, the
  Southern Black Hills and the Central Black Hills. In Wyoming,
  the Wyoming Black Hills.

* WHEN...From 3 PM this afternoon to 6 AM MDT Wednesday.

* IMPACTS...Plan on slippery road conditions.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Slow down and use caution while traveling.

Road conditions are available on your smartphone from the
5 1 1 app for your state.

&&

$$

URGENT - WINTER WEATHER MESSAGE
National Weather Service Rapid City SD
302 AM MDT Tue Oct 19 2021

SDZ025-072-200015-
/O.EXB.KUNR.WW.Y.0012.211019T2100Z-211020T1200Z/
Northern Foot Hills-Sturgis/Piedmont Foot Hills-
Including Spearfish, Whitewood, Sturgis, Piedmont, and Summerset
302 AM MDT Tue Oct 19 2021

...WINTER WEATHER ADVISORY IN EFFECT FROM 3 PM THIS AFTERNOON TO
6 AM MDT WEDNESDAY...

* WHAT...Snow expected. Total snow accumulations of 2 to 4 inches,
  with up to 6 inches possible over the higher elevations. Winds
  gusting as high as 35 mph.

* WHERE...The Northern Foot Hills and the Sturgis/Piedmont Foot
  Hills.

* WHEN...From 3 PM this afternoon to 6 AM MDT Wednesday.

* IMPACTS...Plan on slippery road conditions.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Slow down and use caution while traveling.

Road conditions are available on your smartphone from the
5 1 1 app for your state.

&&

$$

URGENT - WINTER WEATHER MESSAGE
National Weather Service Billings MT
204 AM MDT Tue Oct 19 2021

WYZ198-200600-
/O.CON.KBYZ.WW.Y.0024.211019T0900Z-211020T0600Z/
Northeast Bighorn Mountains-
Including the locations of Story and Burgess Junction
204 AM MDT Tue Oct 19 2021

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

* WHAT...Snow expected. Total snow accumulations between 2 and 6
  inches, highest over southern portions of the mountains. Winds
  gusting as high as 30 mph.

* WHERE...Northeast Bighorn Mountains.

* WHEN...Until Midnight MDT tonight.

* IMPACTS...Recreationists should take caution for rapidly
  deteriorating conditions. Roads will be snowpacked or slushy.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If traveling into the mountains, keep an extra flashlight, food,
and water in your vehicle in case of an emergency.

For the latest road conditions, call 5 1 1.

&&

$$

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

Vertz

URGENT - WINTER WEATHER MESSAGE
National Weather Service Riverton WY
945 PM MDT Mon Oct 18 2021

WYZ002-014-191230-
/O.CON.KRIW.WW.Y.0029.211019T0700Z-211020T0000Z/
Absaroka Mountains-Wind River Mountains West-
945 PM MDT Mon Oct 18 2021

...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 1 AM TO 6 PM
MDT TUESDAY...

* WHAT...Snow. Total accumulations of 6 to 8 inches with locally
  higher amounts around one foot in the southern Absaroka Range.

* WHERE...Absaroka Mountains and Wind River Mountains West.

* WHEN...From 1 AM to 6 PM MDT Tuesday.

* IMPACTS...Travel could be very difficult. Mountain recreation
  is not recommended.

* ADDITIONAL DETAILS...Snowfall will be heaviest at the south end
  of the Absaroka Range, while totals may only reach a few inches
  toward the Montana state line. The heaviest amounts on the west
  slopes of the Wind River Mountains will be over the south, and
  along the Divide above 10000 feet.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Slow down and use caution while traveling.

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
945 PM MDT Mon Oct 18 2021

WYZ007-191230-
/O.CON.KRIW.WW.Y.0029.211019T0900Z-211020T0000Z/
Owl Creek and Bridger Mountains-
945 PM MDT Mon Oct 18 2021

...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 3 AM TO 6 PM
MDT TUESDAY...

* WHAT...Snow, with accumulations 5 to 10 inches.

* WHERE...Owl Creek and Bridger Mountains.

* WHEN...From 3 AM to 6 PM MDT Tuesday.

* IMPACTS...Travel could be very difficult through Wind River
  Canyon, especially from just before sunrise through the
  Tuesday morning commute.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Slow down and use caution while traveling.

The latest road conditions for the state you are calling from can
be obtained by calling 5 1 1.

&&

$$


Wind Advisory


URGENT - WEATHER MESSAGE
National Weather Service Rapid City SD
304 AM MDT Tue Oct 19 2021

SDZ026-030-031-073-074-200000-
/O.NEW.KUNR.WI.Y.0018.211019T1500Z-211020T0000Z/
Rapid City-Custer Co Plains-Pennington Co Plains-
Southern Meade Co Plains-Hermosa Foot Hills-
Including the cities of Rapid City, Folsom, Box Elder, Caputa,
Wall, Ellsworth AFB, Union Center, Hermosa, Buffalo Gap,
and Fairburn
304 AM MDT Tue Oct 19 2021

...WIND ADVISORY IN EFFECT FROM 9 AM THIS MORNING TO 6 PM MDT
THIS EVENING...

* WHAT...North winds 20 to 30 mph with gusts up to 45 mph
  expected.

* WHERE...The Rapid City area, the Custer County Plains, the
  Pennington County Plains, the Southern Meade County Plains and
  the Hermosa Foot Hills.

* WHEN...From 9 AM this morning to 6 PM MDT this evening.

* IMPACTS...Sudden wind gusts can cause drivers to lose control,
  especially in lightweight or high profile vehicles. Strong
  winds can cause blowing dust, reduced visibility, and flying
  debris.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Use extra caution when driving, especially if operating a high
profile vehicle. Secure outdoor objects.

&&

$$


Special Weather Statement


Special Weather Statement
National Weather Service Riverton WY
951 PM MDT Mon Oct 18 2021

WYZ011-191230-
Southeast Johnson County-
Including the city of Kaycee
951 PM MDT Mon Oct 18 2021

...Snow Increases through the Day on Tuesday...

This is a special weather statement from the National Weather
Service Office in Riverton.

* WHAT...Rain or a rain and snow mix early Tuesday morning will
  change to all snow after sunrise. Accumulations over far
  southern Johnson County will reach 2 to 4 inches.

* WHERE...Southern Johnson County.

* WHEN...Tuesday and Tuesday Evening.

* ADDITIONAL DETAILS...Local snowfall of 4 to 6 inches possible
  near the Natrona County line mainly south of Kaycee and
  Sussex...as well as west of Interstate 25.

$$

Team Riverton/21


Hazardous Weather Outlook


Hazardous Weather Outlook
National Weather Service Aberdeen SD
346 AM CDT Tue Oct 19 2021

SDZ003-004-009-015-016-033>035-045-048-200900-
Corson-Campbell-Walworth-Dewey-Potter-Stanley-Sully-Hughes-Jones-
Lyman-
346 AM CDT Tue Oct 19 2021 /246 AM MDT Tue Oct 19 2021/

This Hazardous Weather Outlook is for central South Dakota and
north central South Dakota.

.DAY ONE...Today and tonight.

Light snow will be possible late tonight into the morning hours on
Wednesday. Minor accumulations will be possible, mainly on grassy
areas.

.DAYS TWO THROUGH SEVEN...Wednesday through Monday.

Light snow possible Wednesday morning. Minor accumulations possible,
mainly under an inch on grassy areas. Isolated snowfall amounts of
two inches could be possible in Corson and Dewey County.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is not expected at this time.

$$

Hazardous Weather Outlook
National Weather Service Riverton WY
250 PM MDT Mon Oct 18 2021

WYZ001>020-022>030-192100-
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-
250 PM MDT Mon Oct 18 2021

...Winter Weather headlines in effect from early Tuesday Morning
through Tuesday Night...

This Hazardous Weather Outlook is for Western and Central
Wyoming.

.DAY ONE...This Afternoon through Tonight.

Scattered mountain snow and valley rain showers developing over
far western portions by this evening. Precipitation will become
widespread tonight, with rain changing over to snow after
midnight. Areas of rain and snow will continue, especially east of
the Divide. See winter weather headlines for more details.

.DAYS TWO THROUGH SEVEN...Tuesday through Sunday.

Tuesday...Rain and snow likely east of the Divide. Snow becoming
likely across western portions of Natrona County through the
morning and the rest of the county by midday. See winter weather
headlines for more details.

Saturday and Sunday...Rain and snow is possible over western
portions of the state.

.SPOTTER INFORMATION STATEMENT...

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

$$

Hazardous Weather Outlook
National Weather Service Rapid City SD
152 PM MDT Mon Oct 18 2021

SDZ024-028-029-WYZ055-057-058-191300-
Northern Black Hills-Central Black Hills-Southern Black Hills-
Southern Campbell-Wyoming Black Hills-Weston-
152 PM MDT Mon Oct 18 2021

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

.DAY ONE...This Afternoon and Tonight

Rain and snow will develop tonight. See the Winter Weather
Message (WSWUNR) product for details.

.DAYS TWO THROUGH SEVEN...Tuesday through Sunday

Accumulating snow is expected across northeastern Wyoming and the
Black Hills into early Wednesday. See the Winter Weather Message
(WSWUNR) product for details.

.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

$$

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