weather.gov     
National Weather Service

Watches, Warnings & Advisories
NWS Homepage

Winter Weather Advisory


URGENT - WINTER WEATHER MESSAGE
National Weather Service Great Falls MT
1155 AM MST Sat Feb 27 2021

MTZ008-014-015-052-053-055-280400-
/O.CON.KTFX.WW.Y.0020.000000T0000Z-210228T0400Z/
Beaverhead-Central and Southern Lewis and Clark-Madison-Jefferson-
Broadwater-Gallatin-
Including Big Hole Pass, Wisdom, Dillon, Monida Pass, Wise River,
Flesher Pass, Lincoln, MacDonald Pass, Rogers Pass, Ennis,
Norris Hill, Raynolds Pass, Twin Bridges, Virginia City,
Montana City, Boulder, Boulder Hill, Elk Park Pass,
Homestake Pass, Whitehall, Toston, Townsend, Winston,
Bozeman Apt, City of Bozeman, West Yellowstone,
Battle Ridge Pass, Bozeman Pass, and Targhee Pass
1155 AM MST Sat Feb 27 2021

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 9 PM MST THIS
EVENING...

* WHAT...Snow occurring. Additional snow accumulations of up to
  one inch.

* WHERE...Portions of southwest and west central Montana.

* WHEN...Until 9 PM MST this evening.

* IMPACTS...Plan on slippery road conditions.

* ADDITIONAL DETAILS...Locally intense snow showers and snow bands
  this afternoon may result in sharply reduced visibility to one-
  half mile or less. Blowing and drifting snow may occur in
  windier areas or within snow showers resulting in additional
  travel difficulties.

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.

To see a graphical representation of the degree of stress on
young livestock, please visit our webpage and select Local
Programs, then Cold Air Advisory for Newborn Livestock.

&&

$$

http://www.weather.gov/greatfalls

URGENT - WINTER WEATHER MESSAGE
National Weather Service Great Falls MT
1155 AM MST Sat Feb 27 2021

MTZ012-013-048-050-051-272200-
/O.EXT.KTFX.WW.Y.0020.000000T0000Z-210227T2200Z/
Cascade-Chouteau-Southern Rocky Mountain Front-Judith Basin-
Fergus-
Including Great Falls, Cascade, Belt, Kings Hill Pass,
Fort Benton, Carter, Big Sandy, Bynum, Choteau, Augusta,
Raynesford, Stanford, Hobson, Lewistown, Winifred,
Lewistown Divide, and Grass Range
1155 AM MST Sat Feb 27 2021

...WINTER WEATHER ADVISORY NOW IN EFFECT UNTIL 3 PM MST THIS
AFTERNOON...

* WHAT...Snow occurring. Additional snow accumulations of up to
  one inch.

* WHERE...Southern Rocky Mountain Front, Judith Basin, Fergus,
  Chouteau and Cascade.

* WHEN...Until 3 PM MST this afternoon.

* IMPACTS...Plan on slippery road conditions.

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.

To see a graphical representation of the degree of stress on
young livestock, please visit our webpage and select Local
Programs, then Cold Air Advisory for Newborn Livestock.

&&

$$

URGENT - WINTER WEATHER MESSAGE
National Weather Service Great Falls MT
1155 AM MST Sat Feb 27 2021

MTZ054-280100-
/O.EXT.KTFX.WW.Y.0020.000000T0000Z-210228T0100Z/
Meagher-
Including Martinsdale, Deep Creek Pass, and White Sulphur Springs
1155 AM MST Sat Feb 27 2021

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

* WHAT...Snow occurring. Additional snow accumulations of up to
  one inch.

* WHERE...Meagher.

* WHEN...Until 6 PM MST this evening.

* IMPACTS...Plan on slippery road conditions.

* ADDITIONAL DETAILS...Minor blowing and drifting of snow in
  windier locations will cause additional travel difficulties.

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.

To see a graphical representation of the degree of stress on
young livestock, please visit our webpage and select Local
Programs, then Cold Air Advisory for Newborn Livestock.

&&

$$

URGENT - WINTER WEATHER MESSAGE
National Weather Service Billings MT
117 AM MST Sat Feb 27 2021

MTZ138-WYZ199-280100-
/O.CON.KBYZ.WW.Y.0009.000000T0000Z-210228T0100Z/
Southern Big Horn-Sheridan Foothills-
Including the locations of Lodge Grass, Pryor, Wyola, Sheridan,
Dayton, Ranchester, and Big Horn
117 AM MST Sat Feb 27 2021

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

* WHAT...Snow. Total snow accumulations of 2 to 4 inches.

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

* WHEN...Until 6 PM MST this evening. Heaviest snow will occur
  between 6 AM and 2 pm.

* IMPACTS...Plan on slippery road conditions and reduced
  visibility, especially along Interstate 90.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Slow down and use caution while traveling.

For the latest road conditions, call 5 1 1.

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

&&

$$


Special Weather Statement


Special Weather Statement
National Weather Service Billings MT
219 PM MST Sat Feb 27 2021

MTZ034-139-170-171-272200-
Southeastern Carbon-Northern Carbon-Pryor/Northern Bighorn
Mountains-Northern Stillwater-
219 PM MST Sat Feb 27 2021

...A BAND OF HEAVY SNOW SHOWERS WILL AFFECT EAST CENTRAL
STILLWATER...WESTERN BIG HORN AND CENTRAL CARBON COUNTIES...

At 214 PM MST, a band of heavy snow showers was located along a line
extending from 13 miles northwest of Columbus to 6 miles northeast
of Joliet to 9 miles east of Bridger. Movement was southeast at 25
mph.

Locations impacted include...
Columbus, Joliet, Fromberg, Edgar, Park City, Boyd, Rockvale and
Silesia.

Use extra caution if you must travel. These heavy snow showers will
affect Interstate 90 and portions of Highways 310 and 212. Rapid
changes in visibility and potentially slick roads are likely to lead
to accidents. Consider delaying travel until the heavy snow passes.

Conditions can deteriorate rapidly in winter weather situations. Be
prepared for snow or ice covered roads. Slow down and allow extra
time when traveling.

LAT...LON 4503 10840 4534 10898 4577 10957 4583 10955
      4573 10898 4560 10880 4555 10880 4552 10869
      4547 10870 4546 10865 4534 10870 4538 10864
      4535 10866 4532 10858 4529 10860 4534 10853
      4531 10852 4532 10855 4530 10852
TIME...MOT...LOC 2114Z 299DEG 22KT 4576 10947 4557 10892 4531 10872

$$

Arthur

Special Weather Statement
National Weather Service Billings MT
148 PM MST Sat Feb 27 2021

MTZ030-057-173-272130-
Treasure-Northern Big Horn-Northeastern Yellowstone-
148 PM MST Sat Feb 27 2021

...A BAND OF HEAVY SNOW SHOWERS WILL AFFECT NORTH CENTRAL BIG
HORN...EAST CENTRAL YELLOWSTONE AND SOUTH CENTRAL TREASURE
COUNTIES...

At 145 PM MST, a band of heavy snow showers was located along a line
extending from 8 miles west of Custer to 13 miles north of Fort
Smith. Movement was east at 20 mph.

Locations impacted include...
Hardin, Custer, Crow Agency, Bighorn and Crow Indian Reservation.

Use extra caution if you must travel. Interstates 90 and 94 will be
affected by the band of snow showers. Rapid changes in visibility
and potentially slick roads are likely to lead to accidents.
Consider delaying travel until the heavy snow passes.

Conditions can deteriorate rapidly in winter weather situations. Be
prepared for snow or ice covered roads. Slow down and allow extra
time when traveling.

LAT...LON 4552 10733 4552 10795 4617 10779 4617 10717
TIME...MOT...LOC 2045Z 252DEG 18KT 4610 10773 4551 10798

$$

Arthur

Special Weather Statement
National Weather Service Riverton WY
119 AM MST Sat Feb 27 2021

WYZ003>009-011-016>020-022-280000-
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-
Southeast Johnson County-Upper Wind River Basin-Wind River Basin-
Lander Foothills-Green Mountains and Rattlesnake Range-
Natrona County Lower Elevations-Casper Mountain-
Including the cities of Clark, Cody, Meeteetse, Basin, Greybull,
Lovell, Powell, Shell, Thermopolis, Ten Sleep, Worland, Kaycee,
Dubois, Riverton, Shoshoni, Lander, Jeffrey City, and Casper
119 AM MST Sat Feb 27 2021

...Snow showers returning...

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

* WHAT...Snow showers. Accumulations generally two inches or less.
  However, areas where snow banding persists may see as much as 4
  inches. Snowfall amounts will vary widely over short distances.

* WHERE...Much of northern and central Wyoming.

* WHEN...Into this evening.

* ADDITIONAL DETAILS...Motorists are urged to watch for rapid
  changes in visibility as well as slick and snow covered roads.

$$


Hazardous Weather Outlook


Hazardous Weather Outlook
National Weather Service Riverton WY
142 AM MST Sat Feb 27 2021

WYZ001>020-022>030-281300-
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-
142 AM MST Sat Feb 27 2021

...Winter Weather Advisories for northern Johnson County today...

This Hazardous Weather Outlook is for Western and Central Wyoming.

.DAY ONE...Today and Tonight.

Snow showers spreading East of the Divide, with the steadiest snow
in Johnson County. Snow will be showery with big variances in
accumulations across short distances.

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

The probability for widespread hazardous weather is low.

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