WWA Summary for Winter Storm Watch Issued by GGW

Winter Storm Watch

URGENT - WINTER WEATHER MESSAGE
National Weather Service Glasgow MT
241 PM MST Tue Dec 9 2025

MTZ016-017-021>023-025-026-059-060-101200-
/O.NEW.KGGW.WS.A.0004.251212T0300Z-251213T1800Z/
/O.CON.KGGW.WW.Y.0019.251210T1100Z-251212T0300Z/
Central and Southeast Phillips-Central and Southern Valley-
Petroleum-Garfield-McCone-Dawson-Prairie-Northern Phillips-
Southwest Phillips-
Including Saco, Glendive, Zortman, Fort Peck, Terry, Winnett,
Glasgow, Frazer, Circle, Richey, Malta, Hinsdale, Whitewater, and
Jordan
241 PM MST Tue Dec 9 2025

...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 4 AM WEDNESDAY TO
8 PM MST THURSDAY...
...WINTER STORM WATCH IN EFFECT FROM THURSDAY EVENING THROUGH
SATURDAY MORNING...

* WHAT...Later this week, for the Winter Storm Watch, heavy snow
  possible. Total snow accumulations between 4 and 14 inches
  possible.

* WHERE...Less toward the northeast corner of Montana. More toward
  central Montana.

* WHEN...Later this week, for the Winter Storm Watch, from Thursday
  evening through Saturday morning.

* IMPACTS...Travel could be very difficult to impossible. The
  hazardous conditions could impact multiple days` commutes. Roads,
  and especially bridges and overpasses, will likely become snow
  covered, slick and hazardous.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Monitor the latest forecasts for updates on this situation.

Persons should consider delaying all travel. Motorists should use
extreme caution if travel is absolutely necessary.

Persons should consider delaying all travel. If travel is absolutely
necessary, drive with extreme caution. Consider taking a winter
storm kit along with you, including such items as tire chains,
booster cables, flashlight, shovel, blankets and extra clothing.
Also take water, a first aid kit, and anything else that would help
you survive in case you become stranded.

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.

Be prepared for slippery roads. Slow down and use caution while
driving. If you are going outside, watch your first few steps taken
on stairs, sidewalks, and driveways. These surfaces could be icy and
slippery, increasing your risk of a fall and injury.

&&

$$

URGENT - WINTER WEATHER MESSAGE
National Weather Service Billings MT
812 PM MST Tue Dec 9 2025

MTZ029-034-042-063-141-172-173-228-235-110315-
/O.CON.KBYZ.WW.Y.0040.251210T1200Z-251210T1800Z/
/O.CON.KBYZ.WS.A.0018.251211T2100Z-251213T1800Z/
Musselshell-Northern Stillwater-Golden Valley-Judith Gap-Northern
Sweet Grass-Melville Foothills-Northeastern Yellowstone-Southern
Wheatland-Southwestern Yellowstone-
Including the locations of Huntley, Melville, Custer, Roundup, Park
City, Laurel, Rapelje, Twodot, Melstone, Big Timber, Judith Gap,
Absarokee, Harlowton, Shawmut, Broadview, Reed Point, Pompeys Pillar,
Columbus, Musselshell, Lavina, Ryegate, and Billings
812 PM MST Tue Dec 9 2025

...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 5 AM TO 11 AM MST
WEDNESDAY...
...WINTER STORM WATCH REMAINS IN EFFECT FROM THURSDAY AFTERNOON
THROUGH SATURDAY MORNING...

* WHAT...For the Winter Weather Advisory, mixed precipitation
  expected Wednesday. Total snow accumulations less than 1 inch. A
  light glaze of ice is possible with freezing rain. For the Winter
  Storm Watch, heavy snow possible late Thursday into Saturday. Total
  snow accumulations between 5 and 10 inches possible.

* WHERE...Portions of central and south central Montana.

* WHEN...For the Winter Weather Advisory, from 5 AM to 11 AM MST
  Wednesday. For the Winter Storm Watch, from Thursday afternoon
  through Saturday morning.

* IMPACTS...Impacts to travel are possible. For the Winter Weather
  Advisory, roads may become slick and hazardous due to mixed
  precipitation, including freezing rain. For the Winter Storm Watch,
  roads may become slick and hazardous due to accumulating snowfall.

* ADDITIONAL DETAILS...Decreasing temperatures combined with falling
  snow may result in a flash freeze on roadways Thursday evening.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Monitor the latest forecasts for updates on this situation.

&&

$$

URGENT - WINTER WEATHER MESSAGE
National Weather Service Billings MT
812 PM MST Tue Dec 9 2025

MTZ068-110315-
/O.CON.KBYZ.WS.A.0018.251211T2100Z-251213T1800Z/
Crazy Mountains-
812 PM MST Tue Dec 9 2025

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

* WHAT...Periods of heavy snow and blowing snow possible. Total snow
  accumulations between 10 and 20 inches. Winds could gust as high as
  60 mph.

* WHERE...Crazy Mountains.

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

* IMPACTS...Recreation in the high country may be impacted by heavy
  accumulating snow and blowing snow. Avalanche danger may increase.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Monitor the latest forecasts for updates on this situation.

&&

$$

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

Palmquist

URGENT - WINTER WEATHER MESSAGE
National Weather Service Billings MT
812 PM MST Tue Dec 9 2025

MTZ030>032-036-057-058-138-110315-
/O.CON.KBYZ.WW.Y.0040.251210T1500Z-251211T0000Z/
/O.CON.KBYZ.WS.A.0018.251211T2100Z-251213T1800Z/
Treasure-Northern Rosebud-Custer-Powder River-Northern Big Horn-
Southern Rosebud-Southern Big Horn-
Including the locations of Lame Deer, Miles City, Ashland, Lodge
Grass, Colstrip, Volborg, Pryor, Wyola, Broadus, Hysham, Forsyth,
Hardin, Busby, Biddle, Ismay, Powderville, Ingomar, Bighorn,
Sonnette, Angela, Crow Agency, and Birney
812 PM MST Tue Dec 9 2025

...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 8 AM TO 5 PM MST
WEDNESDAY...
...WINTER STORM WATCH REMAINS IN EFFECT FROM THURSDAY AFTERNOON
THROUGH SATURDAY MORNING...

* WHAT...For the Winter Weather Advisory, mixed precipitation
  expected Wednesday. Total snow accumulations less than 1 inch. A
  light glaze of ice is possible with freezing rain. For the Winter
  Storm Watch, heavy snow possible late Thursday into Saturday. Total
  snow accumulations between 6 and 12 inches possible.

* WHERE...Portions of south central and southeast Montana.

* WHEN...For the Winter Weather Advisory, from 8 AM to 5 PM MST
  Wednesday. For the Winter Storm Watch, from Thursday afternoon
  through Saturday morning.

* IMPACTS...Impacts to travel are possible. For the Winter Weather
  Advisory, roads may become slick and hazardous due to mixed
  precipitation, including freezing rain. For the Winter Storm Watch,
  roads may become slick and hazardous due to accumulating snowfall.

* ADDITIONAL DETAILS...Decreasing temperatures combined with falling
  snow may result in a flash freeze on roadways Thursday evening.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Monitor the latest forecasts for updates on this situation.

&&

$$

URGENT - WINTER WEATHER MESSAGE
National Weather Service Billings MT
812 PM MST Tue Dec 9 2025

MTZ033-037-110315-
/O.CON.KBYZ.WW.Y.0040.251210T2100Z-251211T0300Z/
/O.CON.KBYZ.WS.A.0018.251211T2100Z-251213T1800Z/
Fallon-Carter-
Including the locations of Plevna, Hammond, Baker, Alzada, Belltower,
Webster, and Ekalaka
812 PM MST Tue Dec 9 2025

...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 2 PM TO 8 PM MST
WEDNESDAY...
...WINTER STORM WATCH REMAINS IN EFFECT FROM THURSDAY AFTERNOON
THROUGH SATURDAY MORNING...

* WHAT...For the Winter Weather Advisory, mixed precipitation
  expected Wednesday. Total snow accumulations less than 1 inch. A
  light glaze of ice is possible with freezing rain. For the Winter
  Storm Watch, heavy snow possible. Total snow accumulations between
  3 and 7 inches possible.

* WHERE...Carter and Fallon.

* WHEN...For the Winter Weather Advisory, from 2 PM to 8 PM MST
  Wednesday. For the Winter Storm Watch, from Thursday afternoon
  through Saturday morning.

* IMPACTS...Impacts to travel are possible. For the Winter Weather
  Advisory, roads may become slick and hazardous due to mixed
  precipitation, including freezing rain. For the Winter Storm Watch,
  roads may become slick and hazardous due to accumulating snowfall.

* ADDITIONAL DETAILS...Decreasing temperatures combined with falling
  snow may result in a flash freeze on roadways Thursday evening.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Monitor the latest forecasts for updates on this situation.

&&

$$

URGENT - WINTER WEATHER MESSAGE
National Weather Service Great Falls MT
248 PM MST Tue Dec 9 2025

MTZ302-308>310-312>314-317-318-101215-
/O.NEW.KTFX.WS.A.0019.251211T2100Z-251213T1200Z/
Northern High Plains-Southern High Plains-Eastern Pondera and
Eastern Teton-Western and Central Chouteau County-Cascade County
below 5000ft-Judith Basin County and Judith Gap-Fergus County
below 4500ft-Little Belt and Highwood Mountains-Snowy and Judith
Mountains-
Including the following locations: Kings Hill Pass, Carter,
Hilger, Dupuyer, Browning, Bynum, Heart Butte, Brady, Choteau,
Moccasin, Hobson, Monarch, Pendroy, Raynesford, Benchland,
Conrad, Great Falls, Lewistown, Neihart, Floweree, Geyser,
Ledger, Stanford, Windham, and Fort Benton
248 PM MST Tue Dec 9 2025

...WINTER STORM WATCH IN EFFECT FROM THURSDAY AFTERNOON THROUGH LATE
FRIDAY NIGHT...

* WHAT...Heavy snow possible. Total snow accumulations between 5 and
  12 inches possible across lower elevations, with locally higher
  amounts at the higher mountain peaks. Winds could gust as high as
  35 mph.

* WHERE...Portions of central and north central Montana.

* WHEN...From Thursday afternoon through late Friday night.

* IMPACTS...Travel could be very difficult and tire chains may be
  required for some vehicles over mountain passes. Those in the
  backcountry should ensure they are prepared for dangerous
  conditions. The hazardous conditions could impact the Thursday
  evening and Friday morning commutes.

* ADDITIONAL DETAILS...Temperatures rapidly dropping behind the
  arctic front Thursday afternoon will cause a flash freeze on
  roadways and bridges. The heaviest period of snow will be on
  Friday.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Monitor the latest forecasts for updates on this situation.

Remember, a Winter Storm Watch means that there is at least a 50%
chance of impactful winter weather conditions during the watch
period.

&&

$$

Wilson

URGENT - WINTER WEATHER MESSAGE
National Weather Service Great Falls MT
248 PM MST Tue Dec 9 2025

MTZ303>306-311-101215-
/O.NEW.KTFX.WS.A.0019.251211T1800Z-251213T1200Z/
Eastern Glacier, Western Toole, and Central Pondera-Eastern Toole
and Liberty-Hill County-Northern Blaine County-Bears Paw
Mountains and Southern Blaine-
Including the following locations: Zurich, Rocky Boy, Shelby,
Havre, Santa Rita, Chester, Joplin, Ethridge, Cut Bank, Lothair,
Chinook, Galata, Devon, Whitlash, Hogeland, Fort Belknap, and
Harlem
248 PM MST Tue Dec 9 2025

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

* WHAT...Heavy snow possible. Total snow accumulations between 5 and
  12 inches possible across lower elevations, with locally higher
  amounts in the Bears Paws.

* WHERE...Eastern Glacier, Western Toole, and Central Pondera
  Counties, Eastern Toole and Liberty Counties, Hill County,
  Northern Blaine County, and Bears Paw Mountains and Southern
  Blaine.

* WHEN...From Thursday morning through late Friday night.

* IMPACTS...Travel could be very difficult.

* ADDITIONAL DETAILS...Temperatures rapidly dropping behind the
  arctic front Thursday afternoon will cause a flash freeze on
  roadways and bridges. The heaviest period of snow will be on
  Friday.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Monitor the latest forecasts for updates on this situation.

Remember, a Winter Storm Watch means that there is at least a 50%
chance of impactful winter weather conditions during the watch
period.

&&

$$

URGENT - WINTER WEATHER MESSAGE
National Weather Service Great Falls MT
248 PM MST Tue Dec 9 2025

MTZ301-307-101215-
/O.NEW.KTFX.WS.A.0019.251211T2100Z-251213T1200Z/
/O.CON.KTFX.WW.Y.0054.251210T0700Z-251210T1800Z/
East Glacier Park Region-Southern Rocky Mountain Front-
Including the following locations: East Glacier Park, Kiowa,
Logan Pass, Rogers Pass, Saint Mary, Babb, and Marias Pass
248 PM MST Tue Dec 9 2025

...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM MIDNIGHT TONIGHT
TO 11 AM MST WEDNESDAY...
...WINTER STORM WATCH IN EFFECT FROM THURSDAY AFTERNOON THROUGH LATE
FRIDAY NIGHT...

* WHAT...For the Winter Weather Advisory, snow expected. Total snow
  accumulations between 2 to 4 inches on Marias Pass, and up to 7
  inches at ridge tops. For the Winter Storm Watch, heavy snow
  possible. Total snow accumulations between 7 and 12 inches
  possible along Marias Pass, with over a foot of snow at the higher
  peaks.

* WHERE...The Continental Divide along the Rocky Mountain Front.

* WHEN...For the Winter Weather Advisory, from midnight tonight to
  11 AM MST Wednesday. For the Winter Storm Watch, from Thursday
  afternoon through late Friday night.

* IMPACTS...Travel could be very difficult and tire chains may be
  required for some vehicles. Those in the backcountry should ensure
  they are prepared for dangerous conditions. Roads, and especially
  bridges and overpasses, will likely become slick and hazardous.

* ADDITIONAL DETAILS...Temperatures rapidly dropping behind the
  arctic front Thursday afternoon will cause a flash freeze on
  roadways and bridges. The heaviest period of snow will be on
  Friday.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Monitor the latest forecasts for updates on this situation.

Remember, a Winter Storm Watch means that there is at least a 50%
chance of impactful winter weather conditions during the watch
period.

Slow down and use caution while traveling. The latest road
conditions can be obtained by calling 5 1 1 or visiting the MDT Road
Report website.

&&

$$