Winter Storm Warning

URGENT - WINTER WEATHER MESSAGE
National Weather Service Missoula MT
1217 PM MDT Fri Jun 20 2025

MTZ002-221800-
/O.EXT.KMSO.WS.W.0008.250621T0800Z-250622T1800Z/
West Glacier Region-
1217 PM MDT Fri Jun 20 2025

...WINTER STORM WARNING NOW IN EFFECT FROM 2 AM SATURDAY TO NOON MDT
SUNDAY ABOVE 5000 FEET...

* WHAT...Heavy wet snow expected above 5000 feet. Likelihood of
  extreme impacts from 5 to 12 inches of snow is greater than 90
  percent above 6000 feet, and up to a 30 percent chance of isolated
  impacts from around 2 feet of snow in the highest terrain. Wind
  gusts up to 40 mph in exposed areas.

* WHERE...Marias Pass and Glacier National Park higher elevations
  including Going-to-the-Sun Road and Logan Pass.

* WHEN...From 2 AM Saturday to noon MDT Sunday.

* IMPACTS...For MAJOR impacts from snow, expect considerable
  disruptions to normal activities. Dangerous or impossible
  conditions. Avoid travel in the impacted areas if possible.
  Widespread closures and disruptions to infrastructure may occur.
  For EXTREME impacts from snow, expect substantial disruptions to
  normal activities. Extremely dangerous or impossible conditions.
  Travel in the impacted areas is not advised. Extensive and
  widespread closures and disruptions to infrastructure may occur.
  Life saving actions may be needed. Increased risk of hypothermia.

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.

&&

$$

URGENT - WINTER WEATHER MESSAGE
National Weather Service Great Falls MT
146 PM MDT Fri Jun 20 2025

MTZ301-211215-
/O.CON.KTFX.WS.W.0014.250621T1500Z-250622T1800Z/
East Glacier Park Region-
Including the following locations: Logan Pass, Babb, Saint Mary,
Marias Pass, East Glacier Park, and Kiowa
146 PM MDT Fri Jun 20 2025

...WINTER STORM WARNING REMAINS IN EFFECT FROM 9 AM SATURDAY TO NOON
MDT SUNDAY...

* WHAT...Heavy, wet snow. Total snow accumulations up to 6 inches
  below 6000 feet, with 12 to 18 inches above 6000 feet. Isolated
  higher amounts. Winds could gust as high as 50 mph.

* WHERE...East Glacier Park Region Zone.

* WHEN...From 9 AM Saturday to noon MDT Sunday.

* IMPACTS...Hazardous travel conditions, especially on
  Going-to-the-Sun Road, Looking Glass Road from East Glacier to
  Kiowa, and US Hwy 89 over the Hudson Bay Divide. Dangerous
  backcountry conditions, especially for those hiking in areas of
  exposure due to icy trail conditions and or those camping in the
  backcountry. The combination of heavy, wet snow accumulating on
  trees and powerlines along with the gusty winds may lead to power
  outages and downed trees.

* ADDITIONAL DETAILS...Rain preceding the change to snow and
  fluctuating temperatures could lead to rock slides.

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.

&&

$$