Blizzard Warning 1, NWS Great Falls, MT

344 
WWUS45 KTFX 112353
WSWTFX

URGENT - WINTER WEATHER MESSAGE
National Weather Service Great Falls MT
553 PM MDT Wed Mar 11 2026

MTZ301-307-121200-
/O.EXP.KTFX.WW.Y.0014.000000T0000Z-260312T0000Z/
/O.CON.KTFX.BZ.W.0001.260312T0000Z-260312T2100Z/
/O.CON.KTFX.WS.W.0003.260312T2100Z-260315T0000Z/
East Glacier Park Region-Southern Rocky Mountain Front-
Including the following locations: East Glacier Park, Babb, Saint
Mary, Marias Pass, Kiowa, Logan Pass, and Rogers Pass
553 PM MDT Wed Mar 11 2026

...BLIZZARD WARNING REMAINS IN EFFECT UNTIL 3 PM MDT THURSDAY...
...WINTER STORM WARNING REMAINS IN EFFECT FROM 3 PM THURSDAY TO 6 PM 
MDT SATURDAY...
...WINTER WEATHER ADVISORY WILL EXPIRE AT 6 PM MDT THIS EVENING...

* WHAT...For the Blizzard Warning, blizzard conditions expected to 
  develop tonight as snowfall rates and wind speeds increase with 
  poorest visibility in periods of moderate to heavy snowfall and 
  strong winds Thursday morning. Wind speeds decrease late Thursday 
  through Friday but periods of light to moderate snowfall will 
  persist through Saturday. Total snow accumulations between 1 and 3 
  feet are expected by Saturday. Winds gust as high as 70 mph late 
  tonight through Thursday morning.

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

* WHEN...For the Blizzard Warning, until 3 PM MDT Thursday. For the 
  Winter Storm Warning, from 3 PM Thursday to 6 PM MDT Saturday.

* IMPACTS...Travel could be very difficult or impossible over Marias 
  pass and Rogers pass late tonight through Thursday morning.

* ADDITIONAL DETAILS...Whiteout conditions are likely and may make 
  travel treacherous and potentially life-threatening, especially 
  from 12 AM Thursday through 8 AM Thursday.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Remember, a Blizzard Warning means that there is at least an 80% 
chance of seeing blizzard conditions for at least 3 hours during the 
warning period.

If you must travel, keep an extra flashlight, food, and water in 
your vehicle in case of an emergency. The latest road conditions can 
be obtained by calling 5 1 1 or visiting the MDT Road Report website.



&&

$$

MTZ315-327-121200-
/O.CON.KTFX.WS.W.0003.260312T0000Z-260313T1800Z/
Upper Blackfoot and MacDonald Pass-Northwest Beaverhead County-
Including the following locations: Big Hole Pass, Wisdom,
Lincoln, Chief Joseph Pass, Flesher Pass, Dewey, Wise River,
MacDonald Pass, and Marysville
553 PM MDT Wed Mar 11 2026

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL NOON MDT FRIDAY...

* WHAT...Snow and blowing snow expected. Total snow accumulations 
  between 3 and 7 inches in the Upper Blackfoot Valley, Lincoln 
  area, and Big Hole Pass with 6 to 13 inches over Flesher pass, 
  Macdonald Pass, and Chief Joseph Pass. Winds gusting as high as 65 
  mph may create significant visibility reductions in blowing snow 
  Thursday.

* WHERE...Upper Blackfoot and MacDonald Pass and Northwest 
  Beaverhead County.

* WHEN...Until noon MDT Friday.

* 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. Strong winds could 
  cause tree damage.

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 can 
be obtained by calling 5 1 1 or visiting the MDT Road Report website.

Remember, a Winter Storm Warning means that there is at least an 80% 
chance of impactful winter weather conditions during the warning 
period.

&&

$$

MTZ302-308-121200-
/O.CON.KTFX.WW.Y.0015.260312T0900Z-260312T2100Z/
/O.CON.KTFX.WS.A.0002.260313T0000Z-260315T0000Z/
Northern High Plains-Southern High Plains-
Including the following locations: Dupuyer, Bynum, Choteau,
Pendroy, Heart Butte, and Browning
553 PM MDT Wed Mar 11 2026

...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 3 AM TO 3 PM MDT 
THURSDAY...
...WINTER STORM WATCH REMAINS IN EFFECT FROM THURSDAY EVENING 
THROUGH SATURDAY AFTERNOON...

* WHAT...For the Winter Weather Advisory, snow and blowing snow 
  expected. Total snow accumulations up to two inches. Winds gusting 
  as high as 75 mph will create reduced visibility. For the Winter 
  Storm Watch, heavy snow possible. Total snow accumulations between 
  9 and 19 inches possible. Winds could gust as high as 55 mph.

* WHERE...The foothills and plains adjacent to the Rocky Mountain 
  Front.

* WHEN...For the Winter Weather Advisory, from 3 AM to 3 PM MDT 
  Thursday. For the Winter Storm Watch, from Thursday evening 
  through Saturday afternoon.

* IMPACTS...Travel could be very difficult to dangerous with falling 
  and blowing snow significantly reducing visibility at times.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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.

Monitor the latest forecasts for updates on this situation.


&&

$$

MTZ303-304-309-310-312-121200-
/O.CON.KTFX.WS.A.0002.260313T0000Z-260315T0000Z/
Eastern Glacier, Western Toole, and Central Pondera-Eastern Toole
and Liberty-Eastern Pondera and Eastern Teton-Western and Central
Chouteau County-Cascade County below 5000ft-
Including the following locations: Carter, Brady, Cut Bank,
Shelby, Great Falls, Devon, Chester, Floweree, Joplin, Whitlash,
Ledger, Santa Rita, Fort Benton, Ethridge, Lothair, Conrad, and
Galata
553 PM MDT Wed Mar 11 2026

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

* WHAT...Heavy snow possible. Total snow accumulations between 6 and 
  12 inches possible.

* WHERE...The Interstate 15 Corridor north of Power, Eastern Toole 
  and Liberty Counties, Western and Central Chouteau County, and 
  Cascade County below 5000ft.

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

* IMPACTS...Travel could be very difficult with falling and blowing 
  snow significantly reducing visibility at times.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Monitor the latest forecasts for updates on this situation.

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.

&&

$$

MTZ311-313-314-317-318-121200-
/O.CON.KTFX.WS.A.0002.260313T0000Z-260315T0000Z/
Bears Paw Mountains and Southern Blaine-Judith Basin County and
Judith Gap-Fergus County below 4500ft-Little Belt and Highwood
Mountains-Snowy and Judith Mountains-
Including the following locations: Geyser, Lewistown, Kings Hill
Pass, Hilger, Hobson, Moccasin, Rocky Boy, Monarch, Neihart,
Benchland, Stanford, Windham, and Raynesford
553 PM MDT Wed Mar 11 2026

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

* WHAT...Heavy snow possible. Total snow accumulations between 8 and 
  18 inches possible.

* WHERE...Bears Paw, Highwood, Little Belt, and Snowy Mountains, 
  Judith Basin County and Judith Gap, and Fergus County below 4500ft.

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

* IMPACTS...Travel could be very difficult to dangerous with falling 
  and blowing snow significantly reducing visibility at times. Those 
  in the backcountry should ensure they are prepared for dangerous 
  conditions.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Monitor the latest forecasts for updates on this situation.

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.

&&

$$

Wilson

706 
WWUS45 KTFX 120646
WSWTFX

URGENT - WINTER WEATHER MESSAGE
National Weather Service Great Falls MT
1246 AM MDT Thu Mar 12 2026

MTZ302-308-130000-
/O.UPG.KTFX.WS.A.0002.260313T0000Z-260315T0000Z/
/O.EXB.KTFX.WS.W.0003.260313T0000Z-260315T0000Z/
/O.CON.KTFX.WW.Y.0015.260312T0900Z-260312T2100Z/
Northern High Plains-Southern High Plains-
Including the following locations: Bynum, Choteau, Browning,
Pendroy, Heart Butte, and Dupuyer
1246 AM MDT Thu Mar 12 2026

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 3 PM MDT THIS 
AFTERNOON...
...WINTER STORM WARNING IN EFFECT FROM 6 PM THIS EVENING TO 6 PM MDT 
SATURDAY...

* WHAT...For the Winter Weather Advisory, snow expected. Total snow 
  accumulations up to two inches. Winds gusting as high as 95 mph. 
  For the Winter Storm Warning, heavy snow expected. Total snow 
  accumulations between 6 and 15 inches.

* WHERE...The foothills and plains adjacent to the Rocky Mountain 
  Front.

* WHEN...For the Winter Weather Advisory, until 3 PM MDT this 
  afternoon. For the Winter Storm Warning, from 6 PM this evening to 
  6 PM MDT Saturday.

* IMPACTS...Travel could be very difficult. Widespread blowing snow 
  could significantly reduce visibility.

* ADDITIONAL DETAILS...This will be a mult-day snowfall, with lulls 
  in the snow at times.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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.

Monitor the latest forecasts for updates on this situation.


&&

$$

MTZ317-318-130000-
/O.UPG.KTFX.WS.A.0002.260313T0000Z-260315T0000Z/
/O.EXB.KTFX.WS.W.0003.260312T1200Z-260315T0000Z/
Little Belt and Highwood Mountains-Snowy and Judith Mountains-
Including the following locations: Monarch, Kings Hill Pass, and
Neihart
1246 AM MDT Thu Mar 12 2026

...WINTER STORM WARNING IN EFFECT FROM 6 AM THIS MORNING TO 6 PM MDT 
SATURDAY...

* WHAT...Heavy snow expected. Total snow accumulations between 1 and 
  3 feet. Winds gusting as high as 65 to 85 mph on Thursday.

* WHERE...The Highwood, Little Belt, Judith, and Snowy Mountains.

* WHEN...From 6 AM this morning to 6 PM MDT Saturday.

* 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.

* ADDITIONAL DETAILS...This will be a mult-day snowfall, with lulls 
  in the snow at times.

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 can 
be obtained by calling 5 1 1 or visiting the MDT Road Report website.

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.

&&

$$

MTZ309-312-130000-
/O.UPG.KTFX.WS.A.0002.260313T0000Z-260315T0000Z/
/O.EXB.KTFX.WS.W.0003.260313T0000Z-260315T0000Z/
Eastern Pondera and Eastern Teton-Cascade County below 5000ft-
Including the following locations: Conrad, Ledger, Great Falls,
and Brady
1246 AM MDT Thu Mar 12 2026

...WINTER STORM WARNING IN EFFECT FROM 6 PM THIS EVENING TO 6 PM MDT 
SATURDAY...

* WHAT...Heavy snow expected. Total snow accumulations between 6 and 
  13 inches.

* WHERE...Eastern Pondera and Eastern Teton Counties, and Cascade 
  County below 5000ft.

* WHEN...From 6 PM this evening to 6 PM MDT Saturday.

* IMPACTS...Travel could be very difficult to impossible. The 
  hazardous conditions could impact the Thursday evening and Friday 
  morning commutes. Gusty winds could bring down tree branches.

* ADDITIONAL DETAILS...This will be a mult-day snowfall, with lulls 
  in the snow at times.

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 can 
be obtained by calling 5 1 1 or visiting the MDT Road Report website.

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.

Remember, a Winter Storm Warning means that there is at least an 80% 
chance of impactful winter weather conditions during the warning 
period.

&&

$$

MTZ313-314-130000-
/O.UPG.KTFX.WS.A.0002.260313T0000Z-260315T0000Z/
/O.EXB.KTFX.WS.W.0003.260313T0000Z-260315T0000Z/
Judith Basin County and Judith Gap-Fergus County below 4500ft-
Including the following locations: Hobson, Moccasin, Stanford,
Benchland, Raynesford, Lewistown, Hilger, Windham, and Geyser
1246 AM MDT Thu Mar 12 2026

...WINTER STORM WARNING IN EFFECT FROM 6 PM THIS EVENING TO 6 PM MDT 
SATURDAY...

* WHAT...Heavy snow expected. Total snow accumulations between 7 and 
  19 inches.

* WHERE...Fergus County below 4500ft and Judith Basin County and 
  Judith Gap.

* WHEN...From 6 PM this evening to 6 PM MDT Saturday.

* IMPACTS...Travel could be very difficult to impossible. Strong 
  winds could cause tree damage.

* ADDITIONAL DETAILS...This will be a mult-day snowfall, with lulls 
  in the snow at times.

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 can 
be obtained by calling 5 1 1 or visiting the MDT Road Report website.

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.


&&

$$

MTZ316-130000-
/O.EXB.KTFX.WS.W.0003.260313T0000Z-260315T0000Z/
Gates of the Mountains-
Including the following locations: Craig, Wolf Creek, and Canyon
Creek
1246 AM MDT Thu Mar 12 2026

...WINTER STORM WARNING IN EFFECT FROM 6 PM THIS EVENING TO 6 PM MDT 
SATURDAY...

* WHAT...Heavy snow expected. Total snow accumulations between 6 and 
  15 inches.

* WHERE...Gates of the Mountains.

* WHEN...From 6 PM this evening to 6 PM MDT Saturday.

* IMPACTS...Travel could be very difficult to impossible. Strong 
  winds could cause tree damage.

* ADDITIONAL DETAILS...This will be a mult-day snowfall, with lulls 
  in the snow at times.

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 can 
be obtained by calling 5 1 1 or visiting the MDT Road Report website.

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.

&&

$$

MTZ301-307-130000-
/O.CON.KTFX.BZ.W.0001.000000T0000Z-260312T2100Z/
/O.CON.KTFX.WS.W.0003.260312T2100Z-260315T0000Z/
East Glacier Park Region-Southern Rocky Mountain Front-
Including the following locations: Babb, Saint Mary, Marias Pass,
Rogers Pass, Kiowa, Logan Pass, and East Glacier Park
1246 AM MDT Thu Mar 12 2026

...BLIZZARD WARNING REMAINS IN EFFECT UNTIL 3 PM MDT THIS 
AFTERNOON...
...WINTER STORM WARNING REMAINS IN EFFECT FROM 3 PM THIS AFTERNOON 
TO 6 PM MDT SATURDAY...

* WHAT...For the Blizzard Warning, blizzard conditions. Additional 
  snow accumulations between 10 and 20 inches. Winds gusting as high 
  as 100 mph. For the Winter Storm Warning, heavy snow expected. 
  Total snow accumulations between 1 and 3 feet.

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

* WHEN...For the Blizzard Warning, until 3 PM MDT this afternoon. 
  For the Winter Storm Warning, from 3 PM this afternoon to 6 PM MDT 
  Saturday.

* IMPACTS...Travel could be very difficult or impossible over Marias 
  pass and Rogers pass late tonight through Thursday morning.

* ADDITIONAL DETAILS...Whiteout conditions are likely and may make 
  travel treacherous and potentially life-threatening, especially 
  through 8 AM Thursday. This will be a mult-day snowfall, with 
  lulls in the snow at times.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Remember, a Blizzard Warning means that there is at least an 80% 
chance of seeing blizzard conditions for at least 3 hours during the 
warning period.

If you must travel, keep an extra flashlight, food, and water in 
your vehicle in case of an emergency. The latest road conditions can 
be obtained by calling 5 1 1 or visiting the MDT Road Report website.



&&

$$

MTZ315-327-130000-
/O.CON.KTFX.WS.W.0003.000000T0000Z-260313T1800Z/
Upper Blackfoot and MacDonald Pass-Northwest Beaverhead County-
Including the following locations: Chief Joseph Pass, Wisdom,
Lincoln, Dewey, Big Hole Pass, Marysville, MacDonald Pass, Wise
River, and Flesher Pass
1246 AM MDT Thu Mar 12 2026

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL NOON MDT FRIDAY...

* WHAT...Heavy snow. Additional snow accumulations between 8 and 16 
  inches, with the highest peaks seeing up to 24 inches. Winds 
  gusting as high as 65 to 85 mph on Thursday.

* WHERE...Upper Blackfoot and MacDonald Pass and Northwest 
  Beaverhead County.

* WHEN...Until noon MDT Friday.

* 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. Strong winds could 
  cause tree damage.

* ADDITIONAL DETAILS...This will be a mult-day snowfall, with lulls 
  in the snow at times.

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 can 
be obtained by calling 5 1 1 or visiting the MDT Road Report website.

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.


&&

$$

MTZ303-304-310-311-130000-
/O.UPG.KTFX.WS.A.0002.260313T0000Z-260315T0000Z/
/O.NEW.KTFX.WW.Y.0016.260313T0000Z-260315T0000Z/
Eastern Glacier, Western Toole, and Central Pondera-Eastern Toole
and Liberty-Western and Central Chouteau County-Bears Paw
Mountains and Southern Blaine-
Including the following locations: Carter, Chester, Fort Benton,
Shelby, Devon, Joplin, Lothair, Floweree, Rocky Boy, Whitlash,
Cut Bank, Galata, Santa Rita, and Ethridge
1246 AM MDT Thu Mar 12 2026

...WINTER WEATHER ADVISORY IN EFFECT FROM 6 PM THIS EVENING TO 6 PM 
MDT SATURDAY...

* WHAT...Snow expected. Total snow accumulations between 3 and 6 
  inches, with up to 10 inches across southern Chouteau County.

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

* WHEN...From 6 PM this evening to 6 PM MDT Saturday.

* IMPACTS...Travel could be difficult.

* ADDITIONAL DETAILS...This will be a mult-day snowfall, with lulls 
  in the snow at times.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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.

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.

&&

$$

MTZ319>322-130000-
/O.NEW.KTFX.WS.A.0003.260313T0000Z-260315T0000Z/
Helena Valley-Big Belt, Bridger and Castle Mountains-Meagher
County Valleys-Elkhorn and Boulder Mountains-
Including the following locations: Martinsdale, Bozeman Pass,
Maudlow, Battle Ridge Pass, White Sulphur Springs, Montana City,
Boulder, Wickes, Deep Creek Pass, Clancy, Checkerboard, Corbin,
Helena, Trident, Ringling, Elk Park Pass, and Homestake Pass
1246 AM MDT Thu Mar 12 2026

...WINTER STORM WATCH IN EFFECT FROM THIS EVENING THROUGH SATURDAY 
AFTERNOON...

* WHAT...Heavy snow possible. Total snow accumulations between 4 and 
  8 inches across the valley floors, with 8 to 16 inches possible in 
  the mountains.

* WHERE...Big Belt, Bridger and Castle Mountains, Elkhorn and 
  Boulder Mountains, Helena Valley, and Meagher County Valleys.

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

* 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. The hazardous 
  conditions could impact the Thursday evening and Friday morning 
  commutes.

* ADDITIONAL DETAILS...This will be a mult-day snowfall, with lulls 
  in the snow at times.

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.

&&

$$

Moldan

712 
WWUS45 KTFX 121936
WSWTFX

URGENT - WINTER WEATHER MESSAGE
National Weather Service Great Falls MT
136 PM MDT Thu Mar 12 2026

MTZ301-307-131045-
/O.CAN.KTFX.BZ.W.0001.000000T0000Z-260312T2100Z/
/O.EXT.KTFX.WS.W.0003.260312T1936Z-260315T0000Z/
Including the following locations: Logan Pass, Rogers Pass, Saint
Mary, Marias Pass, East Glacier Park, Babb, and Kiowa
136 PM MDT Thu Mar 12 2026


* WHAT...Snow and blowing snow will diminish later this afternoon as 
  winds decrease. However, snow redevelops tonight with periods of 
  moderate to heavy snow at times Friday through Saturday. 
  Additional snow accumulations between 10 and 20 inches. Winds 
  gusting as high as 60 mph early this afternoon then decreasing to 
  gusts as high as 30 to 40 mph tonight.

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

* WHEN...Until 6 PM MDT Saturday.

* IMPACTS...Travel could be very difficult or impossible over Marias 
  pass and Rogers pass late tonight through Thursday morning.

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 can 
be obtained by calling 5 1 1 or visiting the MDT Road Report website.


Remember, a Winter Storm Warning means that there is at least an 80% 
chance of impactful winter weather conditions during the warning 
period.

&&

$$

MTZ319>322-131045-
/O.UPG.KTFX.WS.A.0003.260313T0000Z-260315T0000Z/
/O.EXA.KTFX.WS.W.0003.260313T0000Z-260315T0000Z/
Helena Valley-Big Belt, Bridger and Castle Mountains-Meagher
County Valleys-Elkhorn and Boulder Mountains-
Including the following locations: Elk Park Pass, Helena,
Maudlow, Martinsdale, Ringling, Wickes, Homestake Pass, Battle
Ridge Pass, Trident, Montana City, Clancy, White Sulphur Springs,
Boulder, Bozeman Pass, Checkerboard, Corbin, and Deep Creek Pass
136 PM MDT Thu Mar 12 2026

...WINTER STORM WARNING IN EFFECT FROM 6 PM THIS EVENING TO 6 PM MDT 
SATURDAY...

* WHAT...Periods of moderate to heavy snow expected. Total snow 
  accumulations between 8 and 12 inches with up to 18 inches at the 
  highest elevations. Winds gusting as high as 35 mph.

* WHERE...Big Belt, Bridger and Castle Mountains, Elkhorn and 
  Boulder Mountains, Helena Valley, and Meagher County Valleys.

* WHEN...From 6 PM this evening to 6 PM MDT Saturday.

* 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. The hazardous 
  conditions could impact the Thursday evening and Friday morning 
  commutes.

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.

&&

$$

MTZ315-327-131045-
/O.EXT.KTFX.WS.W.0003.000000T0000Z-260315T0000Z/
Upper Blackfoot and MacDonald Pass-Northwest Beaverhead County-
Including the following locations: Flesher Pass, Lincoln,
MacDonald Pass, Wise River, Big Hole Pass, Dewey, Chief Joseph
Pass, Wisdom, and Marysville
136 PM MDT Thu Mar 12 2026

...WINTER STORM WARNING NOW IN EFFECT UNTIL 6 PM MDT SATURDAY...

* WHAT...Snow and blowing snow will diminish later this afternoon as 
  winds decrease. However, snow redevelops tonight with periods of 
  moderate to heavy snow expected at times Friday through Saturday. 
  Additional snow accumulations between 10 and 20 inches. Winds 
  gusting as high as 60 mph this afternoon then decreasing to gusts 
  as high as 30 to 40 mph tonight.

* WHERE...Upper Blackfoot and MacDonald Pass and Northwest 
  Beaverhead County.

* WHEN...Until 6 PM MDT Saturday.

* 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. Strong winds could 
  cause tree damage.

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 can 
be obtained by calling 5 1 1 or visiting the MDT Road Report website.

Remember, a Winter Storm Warning means that there is at least an 80% 
chance of impactful winter weather conditions during the warning 
period.

&&

$$

MTZ302-308-131045-
/O.EXT.KTFX.WW.Y.0015.000000T0000Z-260313T0000Z/
/O.CON.KTFX.WS.W.0003.260313T0000Z-260315T0000Z/
Northern High Plains-Southern High Plains-
Including the following locations: Dupuyer, Browning, Bynum,
Choteau, Pendroy, and Heart Butte
136 PM MDT Thu Mar 12 2026

...WINTER WEATHER ADVISORY NOW IN EFFECT UNTIL 6 PM MDT THIS 
EVENING...
...WINTER STORM WARNING REMAINS IN EFFECT FROM 6 PM THIS EVENING TO 
6 PM MDT SATURDAY...

* WHAT...For the Winter Weather Advisory, blowing snow with periods 
  of snow showers through the rest of this afternoon. Additional 
  snow accumulations up to one inch. Winds gusting as high as 55 
  mph. For the Winter Storm Warning, snow redeveloping tonight with 
  periods of moderate to heavy snow expected late Friday and 
  Saturday. Total new snow accumulations between 6 and 12 inches. 
  Winds gusting as high as 45 mph.

* WHERE...The foothills and plains adjacent to the Rocky Mountain 
  Front.

* WHEN...For the Winter Weather Advisory, until 6 PM MDT this 
  evening. For the Winter Storm Warning, from 6 PM this evening to 6 
  PM MDT Saturday.

* IMPACTS...Travel could be very difficult. Widespread blowing snow 
  could significantly reduce visibility through the rest of this 
  afternoon.

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 can 
be obtained by calling 5 1 1 or visiting the MDT Road Report website.



&&

$$

MTZ317-318-131045-
/O.CON.KTFX.WS.W.0003.000000T0000Z-260315T0000Z/
Little Belt and Highwood Mountains-Snowy and Judith Mountains-
Including the following locations: Kings Hill Pass, Monarch, and
Neihart
136 PM MDT Thu Mar 12 2026

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 6 PM MDT SATURDAY...

* WHAT...Periods of moderate to heavy snow expected. Total snow 
  accumulations between 1 and 3 feet. Winds gusting as high as 65 
  this afternoon, diminishing to 25 to 35 mph tonight.

* WHERE...The Highwood, Little Belt, Judith, and Snowy Mountains.

* WHEN...Until 6 PM MDT Saturday.

* 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.

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 can 
be obtained by calling 5 1 1 or visiting the MDT Road Report website.

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.

&&

$$

MTZ309-312-316-131045-
/O.CON.KTFX.WS.W.0003.260313T0000Z-260315T0000Z/
Eastern Pondera and Eastern Teton-Cascade County below 5000ft-
Gates of the Mountains-
Including the following locations: Brady, Great Falls, Conrad,
Ledger, Canyon Creek, Wolf Creek, and Craig
136 PM MDT Thu Mar 12 2026

...WINTER STORM WARNING REMAINS IN EFFECT FROM 6 PM THIS EVENING TO 
6 PM MDT SATURDAY...

* WHAT...Snow developing tonight with periods of moderate snowfall 
  expected late Friday through early Saturday. Total snow 
  accumulations between 6 and 10 inches. Winds gusting as high as 35 
  mph.

* WHERE...Eastern Pondera and Eastern Teton Counties, Cascade County 
  below 5000ft, and Gates of the Mountains.

* WHEN...From 6 PM this evening to 6 PM MDT Saturday.

* IMPACTS...Travel could be difficult.

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 can 
be obtained by calling 5 1 1 or visiting the MDT Road Report website.

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.

Remember, a Winter Storm Warning means that there is at least an 80% 
chance of impactful winter weather conditions during the warning 
period.

&&

$$

MTZ313-314-131045-
/O.CON.KTFX.WS.W.0003.260313T0000Z-260315T0000Z/
Judith Basin County and Judith Gap-Fergus County below 4500ft-
Including the following locations: Raynesford, Hobson, Lewistown,
Moccasin, Benchland, Hilger, Stanford, Windham, and Geyser
136 PM MDT Thu Mar 12 2026

...WINTER STORM WARNING REMAINS IN EFFECT FROM 6 PM THIS EVENING TO 
6 PM MDT SATURDAY...

* WHAT...Snow developing tonight with periods of moderate snowfall 
  expected late Friday through early Saturday. Total snow 
  accumulations between 10 and 20 inches. Winds gusting as high as 
  40 mph.

* WHERE...Fergus County below 4500ft and Judith Basin County and 
  Judith Gap.

* WHEN...From 6 PM this evening to 6 PM MDT Saturday.

* IMPACTS...Travel could be very difficult to impossible. P

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 can 
be obtained by calling 5 1 1 or visiting the MDT Road Report website.

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.


&&

$$

MTZ303-304-310-311-131045-
/O.CON.KTFX.WW.Y.0016.260313T0000Z-260315T0000Z/
Eastern Glacier, Western Toole, and Central Pondera-Eastern Toole
and Liberty-Western and Central Chouteau County-Bears Paw
Mountains and Southern Blaine-
Including the following locations: Ethridge, Chester, Galata,
Rocky Boy, Whitlash, Cut Bank, Carter, Floweree, Fort Benton,
Lothair, Joplin, Santa Rita, Devon, and Shelby
136 PM MDT Thu Mar 12 2026

...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 6 PM THIS EVENING 
TO 6 PM MDT SATURDAY...

* WHAT...Periods of snow expected tonight through Saturday. Total 
  snow accumulations between 3 and 9 inches. Winds gusting as high 
  as 35 mph.

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

* WHEN...From 6 PM this evening to 6 PM MDT Saturday.

* IMPACTS...Travel could be very difficult.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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.

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.

Remember, a Winter Weather Advisory means that there is at least an 
80% chance of minor impacts due to winter weather conditions during 
the advisory period.atchy blowing snow could significantly reduce 
visibility.

&&

$$

Hoenisch

Area Forecast Discussion
National Weather Service Great Falls MT
1117 AM MDT Wed Mar 11 2026

Aviation Section Updated.

.KEY MESSAGES...

- Widespread, long duration strong winds pick up late Wednesday
  evening into Thursday.

- Heavy mountain snowfall will impact the Continental Divide
  during Wednesday through Saturday, with moderate to heavy lower
  elevation snowfall possible Friday and Saturday in North-Central
  MT.

- Another round of gusty winds for Southwest MT saturday.

- Warmer temperatures, a few rounds of precipitation, and windy
 conditions are on tap for next week.

&&

.DISCUSSION...
/Issued 520 AM MDT Wed Mar 11 2026/

 - Meteorological Overview:

Westerly flow over the Continental Divide will keep bringing in
moisture and orographic lift to keep snow showers over the
mountains Wednesday morning and afternoon. A low pressure system
moving in will bring better forcing for heavy snow to begin over
the Continental Divide late Wednesday into Thursday. Westerly
flow aloft will bring in a strong mid level jet up to 80-100kts
statewide late Wednesday into Thursday as well. Strong winds look
to develop region-wide through Thursday despite timing of the
peak mid level jet being overnight into Thursday morning. Perhaps
this is due to precipitation helping mix down these winds, the
pressure gradient tightening during the night, and mountain wave
activity. The combination of the strong winds and heavy snowfall
along the Continental Divide will bring near whiteout condtions
at times, particularly Thursday morning.

A warm front Thursday morning will allow for light snow to
develop along the Hi-line before the main snow system comes in. A
Canadian cold front will push south into the Hi- line and North-
Central MT. This will help undercut the strong winds and bring
widespread snow to North-Central MT. The front is forecasted to
stall somewhere across North-Central MT Thursday. Westerly flow
aloft bringing in remnant moisture from the Pacific atmospheric
river will over run the stalled front, and bring periods of
moderate to heavy snow at lower elevations Friday and Saturday.
The best corridor for heavier snowfall will be where the front
stalls out. Periods of snow continues through Saturday/overnight
into Sunday before exiting.

Southwest MT being south of the front will not be impacted as much
by the snow. There will be periods of light snow to more moderate
snow at the mountain peaks during this time period. However, the
main concern for Southwest MT during this time frame will be
periods of gusty winds.

Next week, an upper-level ridge builds in over the Western U.S.
Montana will be on the eastern edge of this ridge. This will
continue northwest flow aloft into the beginning of next week,
before the ridge flattens out mid next week. This will bring a
few waves of rain/snow as well as windy conditions and much above
normal temperatures.

 - Forecast Confidence & Scenarios:

Winds Late Wednesday Into Thursday:

Model guidance has been pretty consistent in the strength of the
700mb winds. Although the timing of these peak winds is during
the nighttime and pre-dawn hours and therefore not utilizing peak
day time vertical mixing, deterministic and hi-res ensembles
still have these stronger winds mix down to the surface. Mountain
wave activity will be possible overnight, and will likely be the
main driver for the strongest winds that develop. Snow and a
building pressure gradient will also help mix down strong winds
during this time period as well, but there remains a slight chance
in these peak winds being limited by happening during the
overnight hours. This 700mb jet will be persistent for a long
period of time, which winds can become longer duration. The main
window of concern will be early Thursday morning through about
noon time. Travel will be difficult to dangerous for high profile
vehicles, and if a longer duration of winds do set up, then
tree/power line damage will also be a concern. Strong winds also
bring an increase risk of wildfire spread if one does develop.
Higher end values exceed 90 mph over the Rocky Mountain Foothills
and 80 mph across the North- Central MT plains.

Snowfall Wednesday Through Saturday:

Moderate snow will build back in along the Continental Divide
Wednesday morning and will transition to heavy snow Wednesday
evening. From Wednesday evening through Saturday, it is currently
forecasted for snow accumulations to reach 1-4 feet of snow.
Heavy convective snow combined with gusty winds Thursday morning
will bring whiteout conditions at times should the winds mix down
to the surface. The heavy snow will make travel over Marias Pass
extremely difficult. The heavy snow will also weigh down on
power lines and trees, which can cause them to fall down.

The cold front pushing through Thursday will usher in colder air
into North-Central MT through the weekend. There remains a little
variability in where this front stalls out, but general consensus
at the time is somewhere around the Central Island ranges through
the MT Highway 200 corridor through Roger's Pass. Generally, snow
accumulations of 6-10" look plausible for lower elevations in
North-Central MT and exceeding a foot in the Central MT mountains
and areas that the front stalls out in. Snow will accumulate
better at night and morning hours where overnight temperatures
drop into the 20s/teens. Marginal temperatures in the afternoon
may slightly limit accumulations in areas that don't develop a
heavier snow band. The current Winter Weather Watches remain on
track. -Wilson

&&

.AVIATION...
11/18z TAF Period

Initial concern this TAF period will be for breezy winds through the
remainder of the afternoon and early evening before subsiding
briefly. Winds aloft will already be increasing this evening as
surface winds subside, which will result in at least isolated
instances of LLWS. Confidence in this occurring was too low to
place in any TAF at this time however.

Later this evening and tonight surface winds increase again,
becoming strong over the plains and adjacent areas between 6Z and
12Z. These stronger winds spread southward through the morning,
remaining gusty through the day. Low-level turbulence will be common
as early as 6Z over the plains, spreading to all areas by late
morning Thursday.

All the while, precipitation along the Continental Divide will
obscure mountains through the TAF period, occasionally making
inroads further east of the divide. -AM

&&

.PRELIMINARY POINT TEMPS/POPS...
GTF  44  37  49  29 /  10  40  70  90
CTB  39  27  41  20 /  10  50  60  60
HLN  46  38  51  33 /  20  50  90 100
BZN  46  35  56  34 /  10  20  50  70
WYS  34  27  46  33 /  20  60  60  60
DLN  44  35  52  38 /  10  30  40  40
HVR  45  29  46  20 /  10  70  80  70
LWT  41  31  47  24 /  10  40  90 100

&&

.TFX WATCHES/WARNINGS/ADVISORIES...
Winter Weather Advisory until 6 PM MDT this evening for East
Glacier Park Region-Southern Rocky Mountain Front.

Winter Storm Warning from 6 PM this evening to 6 PM MDT Saturday
for East Glacier Park Region-Southern Rocky Mountain Front.

Winter Storm Watch from Thursday evening through Saturday
afternoon for Bears Paw Mountains and Southern Blaine-Cascade
County below 5000ft-Eastern Glacier, Western Toole, and Central
Pondera-Eastern Pondera and Eastern Teton-Eastern Toole and
Liberty-Fergus County below 4500ft-Judith Basin County and
Judith Gap-Little Belt and Highwood Mountains-Northern High
Plains-Snowy and Judith Mountains-Southern High Plains-Western
and Central Chouteau County.

High Wind Warning from midnight tonight to 6 PM MDT Thursday for
Beaverhead and Western Madison below 6000ft-Big Belt, Bridger
and Castle Mountains-Canyon Ferry Area-Cascade County below
5000ft-Eastern Pondera and Eastern Teton-Eastern Toole and
Liberty-Elkhorn and Boulder Mountains-Gallatin Valley-Gallatin
and Madison County Mountains and Centennial Mountains-Gates of
the Mountains-Helena Valley-Judith Basin County and Judith Gap-
Little Belt and Highwood Mountains-Madison River Valley-Meagher
County Valleys-Missouri Headwaters-Northwest Beaverhead County-
Ruby Mountains and Southern Beaverhead Mountains-Upper Blackfoot
and MacDonald Pass-Western and Central Chouteau County.

High Wind Warning from 6 PM this evening to 3 PM MDT Thursday
for East Glacier Park Region-Eastern Glacier, Western Toole, and
Central Pondera-Northern High Plains-Southern High Plains-
Southern Rocky Mountain Front.

High Wind Warning from 3 AM to 6 PM MDT Thursday for Bears Paw
Mountains and Southern Blaine-Fergus County below 4500ft-Hill
County-Northern Blaine County-Snowy and Judith Mountains.

Winter Weather Advisory from 6 PM this evening to noon MDT
Friday for Northwest Beaverhead County.

&&

http://www.weather.gov/greatfalls