Use this page to view archived advisories. The table below shows the overall danger rating and the bottom line for the 20 most recent advisories. Click on the time and date link above each danger rating icon to view the full advisory for that day. Use the date chooser or the pager at the bottom to scroll through the older advisories.

E.g., Monday, July 24, 2017
E.g., Monday, July 24, 2017
E.g., Monday, July 24, 2017
Date the advisory was published:sort ascending Forecast Region
Click here to see the full advisory for 2017-01-21
January 21, 2017 at 6:29

Concerns in our snowpack remain with the variety of weak layers in our pack along with wind slabs that formed earlier in the week. The avalanche danger is MODERATE above 5000 feet. Human triggered avalanches are possible particularly on steep, wind loaded slopes and terrain with shallow snow where it is easier to affect deeper instabilities. Dig into the snow to look for these weak, faceted layers and carefully assess recently wind loaded terrain before committing to it.

Whitefish Range
Click here to see the full advisory for 2017-01-21
January 21, 2017 at 6:29

Concerns in our snowpack remain with the variety of weak layers in our pack along with wind slabs that formed earlier in the week. The avalanche danger is MODERATE above 5000 feet. Human triggered avalanches are possible particularly on steep, wind loaded slopes and terrain with shallow snow where it is easier to affect deeper instabilities. Dig into the snow to look for these weak, faceted layers and carefully assess recently wind loaded terrain before committing to it.

Swan Range
Click here to see the full advisory for 2017-01-21
January 21, 2017 at 6:29

Concerns in our snowpack remain with the variety of weak layers in our pack along with wind slabs that formed earlier in the week. The avalanche danger is MODERATE above 5000 feet. Human triggered avalanches are possible particularly on steep, wind loaded slopes and terrain with shallow snow where it is easier to affect deeper instabilities. Dig into the snow to look for these weak, faceted layers and carefully assess recently wind loaded terrain before committing to it.

Flathead Range and southern Glacier National Park
Click here to see the full advisory for 2017-01-20
January 20, 2017 at 6:39

The cooler temperatures overnight helped to stabilize the surface snow, but weak layers lurk deeper in the snow pack. The avalanche danger is MODERATE above 5000 feet. Human triggered avalanches are possible particularly on steep, wind loaded slopes and terrain with shallow snow where it is easier to affect deeper instabilities. Dig into the snow to look for these weak, faceted layers and carefully assess recently wind loaded terrain before committing to it.

Whitefish Range
Click here to see the full advisory for 2017-01-20
January 20, 2017 at 6:39

The cooler temperatures overnight helped to stabilize the surface snow, but weak layers lurk deeper in the snow pack. The avalanche danger is MODERATE above 5000 feet. Human triggered avalanches are possible particularly on steep, wind loaded slopes and terrain with shallow snow where it is easier to affect deeper instabilities. Dig into the snow to look for these weak, faceted layers and carefully assess recently wind loaded terrain before committing to it.

Swan Range
Click here to see the full advisory for 2017-01-20
January 20, 2017 at 6:39

The cooler temperatures overnight helped to stabilize the surface snow, but weak layers lurk deeper in the snow pack. The avalanche danger is MODERATE above 5000 feet. Human triggered avalanches are possible particularly on steep, wind loaded slopes and terrain with shallow snow where it is easier to affect deeper instabilities. Dig into the snow to look for these weak, faceted layers and carefully assess recently wind loaded terrain before committing to it.

Flathead Range and southern Glacier National Park
Click here to see the full advisory for 2017-01-19
January 19, 2017 at 7:00

The latest system brought about rapid change to the snow pack with added water weight, wind transported snow, and warming temperatures. Dangerous conditions exist in the upper elevations. The avalanche danger is CONSIDERABLE above 6000 feet. Carefully evaluate the snow pack and choose conservative terrain while it adjusts to the recent stress.

Whitefish Range
Click here to see the full advisory for 2017-01-19
January 19, 2017 at 7:00

The latest system brought about rapid change to the snow pack with added water weight, wind transported snow, and warming temperatures. Dangerous conditions exist in the upper elevations. The avalanche danger is CONSIDERABLE above 6000 feet. Carefully evaluate the snow pack and choose conservative terrain while it adjusts to the recent stress.

Swan Range
Click here to see the full advisory for 2017-01-19
January 19, 2017 at 7:00

The latest system brought about rapid change to the snow pack with added water weight, wind transported snow, and warming temperatures. Dangerous conditions exist in the upper elevations. The avalanche danger is CONSIDERABLE above 6000 feet. Carefully evaluate the snow pack and choose conservative terrain while it adjusts to the recent stress.

Flathead Range and southern Glacier National Park
Click here to see the full advisory for 2017-01-18
January 18, 2017 at 7:00

How warm and how much precipitation?  Confidence in weather forecasts is low and conditions could be highly variable.  Wind slabs continue to develop and snow structure isn't favorable for increased load or rapid warming. The avalanche danger is CONSIDERABLE at all elevations. Carefully evaluate the snowpack and your terrain choices. Pay close attention to the changing weather today and be aware that quickly warming temperatures or precipitation may increase the avalanche danger.

Whitefish Range
Click here to see the full advisory for 2017-01-18
January 18, 2017 at 7:00

How warm and how much precipitation?  Confidence in weather forecasts is low and conditions could be highly variable.  Wind slabs continue to develop and snow structure isn't favorable for increased load or rapid warming. The avalanche danger is CONSIDERABLE at all elevations. Carefully evaluate the snowpack and your terrain choices. Pay close attention to the changing weather today and be aware that quickly warming temperatures or precipitation may increase the avalanche danger.

Swan Range
Click here to see the full advisory for 2017-01-18
January 18, 2017 at 7:00

How warm and how much precipitation?  Confidence in weather forecasts is low and conditions could be highly variable.  Wind slabs continue to develop and snow structure isn't favorable for increased load or rapid warming. The avalanche danger is CONSIDERABLE at all elevations. Carefully evaluate the snowpack and your terrain choices. Pay close attention to the changing weather today and be aware that quickly warming temperatures or precipitation may increase the avalanche danger.

Flathead Range and southern Glacier National Park
Click here to see the full advisory for 2017-01-17
January 17, 2017 at 6:56

Southwest winds have increased overnight likely forming fresh wind slabs. Older wind slabs have been slow to strengthen. Weak layers formed earlier in the season have continued to weaken and remain a concern. The avalanche danger is MODERATE above 5000 feet. Carefully evaluate the snowpack and your terrain choices. Pay close attention to the changing weather today and be aware that quickly warming temperatures may increase the avalanche danger.

Whitefish Range
Click here to see the full advisory for 2017-01-17
January 17, 2017 at 6:56

Southwest winds have increased overnight likely forming fresh wind slabs. Older wind slabs have been slow to strengthen. Weak layers formed earlier in the season have continued to weaken and remain a concern. The avalanche danger is MODERATE above 5000 feet. Carefully evaluate the snowpack and your terrain choices. Pay close attention to the changing weather today and be aware that quickly warming temperatures may increase the avalanche danger.

Swan Range
Click here to see the full advisory for 2017-01-17
January 17, 2017 at 6:56

Southwest winds have increased overnight likely forming fresh wind slabs. Older wind slabs have been slow to strengthen. Weak layers formed earlier in the season have continued to weaken and remain a concern. The avalanche danger is MODERATE above 5000 feet. Carefully evaluate the snowpack and your terrain choices. Pay close attention to the changing weather today and be aware that quickly warming temperatures may increase the avalanche danger.

Flathead Range and southern Glacier National Park
Click here to see the full advisory for 2017-01-16
January 16, 2017 at 6:36

Above 5000 feet, the avalanche danger is MODERATE and human triggered avalanches are possible.  At upper elevation locations fresh wind slabs continue to form and older wind slabs have been slow to strengthen. Carefully evaluate wind loaded terrain before committing to a slope. Weak layers exist throughout our pack and remain a concern. Avoid steep, rocky terrain and slopes with a shallow snow pack.

Whitefish Range
Click here to see the full advisory for 2017-01-16
January 16, 2017 at 6:36

Above 5000 feet, the avalanche danger is MODERATE and human triggered avalanches are possible.  At upper elevation locations fresh wind slabs continue to form and older wind slabs have been slow to strengthen. Carefully evaluate wind loaded terrain before committing to a slope. Weak layers exist throughout our pack and remain a concern. Avoid steep, rocky terrain and slopes with a shallow snow pack.

Swan Range
Click here to see the full advisory for 2017-01-16
January 16, 2017 at 6:36

Above 5000 feet, the avalanche danger is MODERATE and human triggered avalanches are possible.  At upper elevation locations fresh wind slabs continue to form and older wind slabs have been slow to strengthen. Carefully evaluate wind loaded terrain before committing to a slope. Weak layers exist throughout our pack and remain a concern. Avoid steep, rocky terrain and slopes with a shallow snow pack.

Flathead Range and southern Glacier National Park
Click here to see the full advisory for 2017-01-15
January 15, 2017 at 6:02

Above 5000 feet, the avalanche danger is MODERATE and human triggered avalanches are possible.  Fresh wind slabs continue to form in the alpine terrain. Older wind slabs have been slow to strengthen. Carefully evaluate wind loaded terrain before committing to a slope. Weak layers exist throughout our pack and remain a concern. Avoid steep, rocky terrain and slopes with a shallow snow pack.

Whitefish Range
Click here to see the full advisory for 2017-01-15
January 15, 2017 at 6:02

Above 5000 feet, the avalanche danger is MODERATE and human triggered avalanches are possible.  Fresh wind slabs continue to form in the alpine terrain. Older wind slabs have been slow to strengthen. Carefully evaluate wind loaded terrain before committing to a slope. Weak layers exist throughout our pack and remain a concern. Avoid steep, rocky terrain and slopes with a shallow snow pack.

Swan Range
Click here to see the full advisory for 2017-01-15
January 15, 2017 at 6:02

Above 5000 feet, the avalanche danger is MODERATE and human triggered avalanches are possible.  Fresh wind slabs continue to form in the alpine terrain. Older wind slabs have been slow to strengthen. Carefully evaluate wind loaded terrain before committing to a slope. Weak layers exist throughout our pack and remain a concern. Avoid steep, rocky terrain and slopes with a shallow snow pack.

Flathead Range and southern Glacier National Park
Click here to see the full advisory for 2017-01-14
January 14, 2017 at 6:47

Above 5000 feet, the avalanche danger is MODERATE and human triggered avalanches are possible.  Recent winds have drifted snow onto a variety of aspects forming thin wind slabs. Carefully evaluate wind loaded terrain before committing to a slope. Weak layers formed earlier in the season continue to weaken and remain a concern. Avoid steep, rocky terrain and slopes with a shallow snow pack.

Whitefish Range
Click here to see the full advisory for 2017-01-14
January 14, 2017 at 6:47

Above 5000 feet, the avalanche danger is MODERATE and human triggered avalanches are possible.  Recent winds have drifted snow onto a variety of aspects forming thin wind slabs. Carefully evaluate wind loaded terrain before committing to a slope. Weak layers formed earlier in the season continue to weaken and remain a concern. Avoid steep, rocky terrain and slopes with a shallow snow pack.

Swan Range
Click here to see the full advisory for 2017-01-14
January 14, 2017 at 6:47

Above 5000 feet, the avalanche danger is MODERATE and human triggered avalanches are possible.  Recent winds have drifted snow onto a variety of aspects forming thin wind slabs. Carefully evaluate wind loaded terrain before committing to a slope. Weak layers formed earlier in the season continue to weaken and remain a concern. Avoid steep, rocky terrain and slopes with a shallow snow pack.

Flathead Range and southern Glacier National Park
Click here to see the full advisory for 2017-01-13
January 13, 2017 at 7:00

Today the avalanche danger is MODERATE above 5000 feet. Human triggered avalanches are possible.  Variable wind direction over the past week created slabs on multiple aspects. Carefully evaluate wind loaded terrain before committing to a slope. Additionally, weak snow exists deep in the snow pack so lower your odds of triggering a deeper layer by avoiding steep, rocky terrain and slopes with a shallow snow pack.

Whitefish Range
Click here to see the full advisory for 2017-01-13
January 13, 2017 at 7:00

Today the avalanche danger is MODERATE above 5000 feet. Human triggered avalanches are possible.  Variable wind direction over the past week created slabs on multiple aspects. Carefully evaluate wind loaded terrain before committing to a slope. Additionally, weak snow exists deep in the snow pack so lower your odds of triggering a deeper layer by avoiding steep, rocky terrain and slopes with a shallow snow pack.

Swan Range
Click here to see the full advisory for 2017-01-13
January 13, 2017 at 7:00

Today the avalanche danger is MODERATE above 5000 feet. Human triggered avalanches are possible.  Variable wind direction over the past week created slabs on multiple aspects. Carefully evaluate wind loaded terrain before committing to a slope. Additionally, weak snow exists deep in the snow pack so lower your odds of triggering a deeper layer by avoiding steep, rocky terrain and slopes with a shallow snow pack.

Flathead Range and southern Glacier National Park
Click here to see the full advisory for 2017-01-12
January 12, 2017 at 7:00

Natural avalanche activity was reported in wind loaded terrain yesterday. Wind continued to drift the snow and thicken slabs that I expect to remain sensitive to human triggers today. The avalanche danger is CONSIDERABLE above 6000 feet. Be aware of the potential for small avalanches to stress deep weak layers resulting in deeper slides. Dig into the snow and look for weak layers that exists in the mid snow pack and choose less complex terrain where present.

Whitefish Range
Click here to see the full advisory for 2017-01-12
January 12, 2017 at 7:00

Natural avalanche activity was reported in wind loaded terrain yesterday. Wind continued to drift the snow and thicken slabs that I expect to remain sensitive to human triggers today. The avalanche danger is CONSIDERABLE above 6000 feet. Be aware of the potential for small avalanches to stress deep weak layers resulting in deeper slides. Dig into the snow and look for weak layers that exists in the mid snow pack and choose less complex terrain where present.

Swan Range
Click here to see the full advisory for 2017-01-12
January 12, 2017 at 7:00

Natural avalanche activity was reported in wind loaded terrain yesterday. Wind continued to drift the snow and thicken slabs that I expect to remain sensitive to human triggers today. The avalanche danger is CONSIDERABLE above 6000 feet. Be aware of the potential for small avalanches to stress deep weak layers resulting in deeper slides. Dig into the snow and look for weak layers that exists in the mid snow pack and choose less complex terrain where present.

Flathead Range and southern Glacier National Park

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