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Winter Weather Advisory 0059
Issued by the Great Falls Forecast Office

Action Issued Starts Expiration
New 2025-12-19 15:16:55 2025-12-19 21:00:00 2025-12-20 18:00:00
Continued 2025-12-19 21:46:34 2025-12-20 18:00:00
Continued 2025-12-20 02:15:11 2025-12-20 18:00:00
Continued 2025-12-20 14:15:23 2025-12-20 18:00:00
Expired 2025-12-20 17:47:28 2025-12-20 18:00:00


Action: New
Issued At: 2025-12-19 15:16:55

348 
WWUS45 KTFX 192116
WSWTFX

URGENT - WINTER WEATHER MESSAGE
National Weather Service Great Falls MT
216 PM MST Fri Dec 19 2025

MTZ301-307-201230-
/O.CAN.KTFX.WW.Y.0058.000000T0000Z-251220T0100Z/
/O.NEW.KTFX.WW.Y.0059.251220T0300Z-251221T0000Z/
East Glacier Park Region-Southern Rocky Mountain Front-
Including the following locations: Saint Mary, Babb, Rogers Pass,
Logan Pass, East Glacier Park, Marias Pass, and Kiowa
216 PM MST Fri Dec 19 2025

...WINTER WEATHER ADVISORY IN EFFECT FROM 8 PM THIS EVENING TO 5 PM 
MST SATURDAY...
...WINTER WEATHER ADVISORY IS CANCELLED...

* WHAT...Snow expected. Total snow accumulations of 3 to 6 inches at 
  Marias Pass, with up to 10 inches at higher peaks.

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

* WHEN...From 8 PM this evening to 5 PM MST Saturday.

* IMPACTS...Travel could be very difficult. Areas of blowing snow 
  could reduce visibility.

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.


&&

$$

MTZ327-200400-
/O.CON.KTFX.WW.Y.0058.000000T0000Z-251220T0400Z/
Northwest Beaverhead County-
Including the following locations: Wisdom, Big Hole Pass, Chief
Joseph Pass, Wise River, and Dewey
216 PM MST Fri Dec 19 2025

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

* WHAT...Snow. Additional snow accumulations up to 2 inches at lower 
  elevations, with up to 5 inches above pass level. Winds gusting 
  over 50 mph at times over the ridgetops.

* WHERE...Northwest Beaverhead County.

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

* IMPACTS...Plan on slippery road conditions. Areas of blowing snow 
  could reduce visibility.

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.


&&

$$

MTZ330-200700-
/O.CON.KTFX.WW.Y.0058.000000T0000Z-251220T0700Z/
Gallatin and Madison County Mountains and Centennial Mountains-
Including the following locations: Targhee Pass, West
Yellowstone, Raynolds Pass, and Big Sky
216 PM MST Fri Dec 19 2025

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

* WHAT...Snow. Additional snow accumulations up to 3 inches at pass 
  level, with up to 6 inches above 7,000ft. Winds gusting over 50 
  mph at times over the ridgetops.

* WHERE...Gallatin and Madison County Mountains and Centennial 
  Mountains.

* WHEN...Until midnight MST tonight.

* IMPACTS...Plan on slippery road conditions. Areas of blowing snow 
  could reduce visibility.

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.


&&

$$

Wilson


Action: Continued
Issued At: 2025-12-19 21:46:34

305 
WWUS45 KTFX 200346
WSWTFX

URGENT - WINTER WEATHER MESSAGE
National Weather Service Great Falls MT
846 PM MST Fri Dec 19 2025

MTZ330-200500-
/O.CAN.KTFX.WW.Y.0058.000000T0000Z-251220T0700Z/
Gallatin and Madison County Mountains and Centennial Mountains-
Including the following locations: Raynolds Pass, West
Yellowstone, Targhee Pass, and Big Sky
846 PM MST Fri Dec 19 2025

...WINTER WEATHER ADVISORY IS CANCELLED...

The threat for snow has ended.

$$

MTZ327-200500-
/O.EXP.KTFX.WW.Y.0058.000000T0000Z-251220T0400Z/
Northwest Beaverhead County-
Including the following locations: Dewey, Big Hole Pass, Wisdom,
Wise River, and Chief Joseph Pass
846 PM MST Fri Dec 19 2025

...WINTER WEATHER ADVISORY WILL EXPIRE AT 9 PM MST THIS EVENING...

The threat for snow has ended.

$$

MTZ301-307-201900-
/O.CON.KTFX.WW.Y.0059.000000T0000Z-251221T0000Z/
East Glacier Park Region-Southern Rocky Mountain Front-
Including the following locations: Saint Mary, Kiowa, East
Glacier Park, Rogers Pass, Logan Pass, Babb, and Marias Pass
846 PM MST Fri Dec 19 2025

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 5 PM MST 
SATURDAY...

* WHAT...Snow expected. Total snow accumulations of 3 to 6 inches at 
  Marias Pass, with up to 10 inches at higher peaks.

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

* WHEN...Until 5 PM MST Saturday.

* IMPACTS...Travel could be very difficult. Areas of blowing snow 
  could reduce visibility.

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.

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.

&&

$$

Glinskas


Action: Continued
Issued At: 2025-12-20 02:15:11

225 
WWUS45 KTFX 200814
WSWTFX

URGENT - WINTER WEATHER MESSAGE
National Weather Service Great Falls MT
114 AM MST Sat Dec 20 2025

MTZ301-307-210000-
/O.CON.KTFX.WW.Y.0059.000000T0000Z-251221T0000Z/
East Glacier Park Region-Southern Rocky Mountain Front-
Including the following locations: Rogers Pass, Kiowa, Logan
Pass, Marias Pass, East Glacier Park, Saint Mary, and Babb
114 AM MST Sat Dec 20 2025

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 5 PM MST THIS 
AFTERNOON...

* WHAT...Snow expected. Additional snow accumulations of 2 to 5 
  inches at Marias Pass, with up to 10 inches or greater over the 
  higher terrain along the Rocky Mountain Front.

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

* WHEN...Until 5 PM MST this afternoon.

* IMPACTS...Travel could be very difficult. Areas of blowing snow 
  could reduce visibility.

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.


&&

$$

RG


Action: Continued
Issued At: 2025-12-20 14:15:23

620 
WWUS45 KTFX 202014
WSWTFX

URGENT - WINTER WEATHER MESSAGE
National Weather Service Great Falls MT
114 PM MST Sat Dec 20 2025

MTZ301-307-210000-
/O.CON.KTFX.WW.Y.0059.000000T0000Z-251221T0000Z/
East Glacier Park Region-Southern Rocky Mountain Front-
Including the following locations: Babb, Logan Pass, Kiowa, East
Glacier Park, Marias Pass, Rogers Pass, and Saint Mary
114 PM MST Sat Dec 20 2025

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 5 PM MST THIS 
AFTERNOON...

* WHAT...Snow. Additional snow accumulations up to two inches at 
  Marias Pass, with locally higher amounts over the higher terrain.

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

* WHEN...Until 5 PM MST this afternoon.

* IMPACTS...Plan on slippery road conditions. Areas of blowing snow 
  could reduce visibility.

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.


&&

$$

Wilson


Action: Expired
Issued At: 2025-12-20 17:47:28

186 
WWUS45 KTFX 202347
WSWTFX

URGENT - WINTER WEATHER MESSAGE
National Weather Service Great Falls MT
447 PM MST Sat Dec 20 2025

MTZ301-307-210100-
/O.EXP.KTFX.WW.Y.0059.000000T0000Z-251221T0000Z/
East Glacier Park Region-Southern Rocky Mountain Front-
Including the following locations: Saint Mary, Babb, Rogers Pass,
East Glacier Park, Logan Pass, Marias Pass, and Kiowa
447 PM MST Sat Dec 20 2025

...WINTER WEATHER ADVISORY WILL EXPIRE AT 5 PM MST THIS AFTERNOON...

The threat for heavy snow has ended.

$$

Glinskas



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