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., Wednesday, June 19, 2024
E.g., Wednesday, June 19, 2024
E.g., Wednesday, June 19, 2024
Date the advisory was published:sort descending Forecast Region
Click here to see the full advisory for 2014-12-23
December 23, 2014 at 6:53

The avalanche hazard above 5000 feet is CONSIDERABLE today. Dangerous avalanche conditions exist. Buried surface hoar 1.5 to 2 feet deep and fresh wind slabs continue to make human triggered avalanches likely. These conditions require careful snowpack evaluation, cautious route-finding, and conservative decision making. 

Swan Range
Click here to see the full advisory for 2014-12-23
December 23, 2014 at 6:53

The avalanche hazard above 5000 feet is CONSIDERABLE today. Dangerous avalanche conditions exist. Buried surface hoar 1.5 to 2 feet deep and fresh wind slabs continue to make human triggered avalanches likely. These conditions require careful snowpack evaluation, cautious route-finding, and conservative decision making. 

Flathead Range and Glacier National Park
Click here to see the full advisory for 2014-12-23
December 23, 2014 at 6:53

The avalanche hazard above 5000 feet is CONSIDERABLE today. Dangerous avalanche conditions exist. Buried surface hoar 1.5 to 2 feet deep and fresh wind slabs continue to make human triggered avalanches likely. These conditions require careful snowpack evaluation, cautious route-finding, and conservative decision making. 

Whitefish Range
Click here to see the full advisory for 2014-12-24
December 24, 2014 at 6:54

AVALANCHE WARNING issued for entire advisory area including the Whitefish, Swan, and Flathead Ranges, and portions of Glacier Park. The avalanche hazard is HIGH. Very dangerous avalanche conditions exist. Human triggered avalanches reported every day over the last four days. New snow and winds over buried surface hoar 1.5 to 2.5 feet deep make human triggered avalanches very likely and natural avalanches likely with the potential to be large and destructive. Travel in avalanche terrain is not recommended. 

Swan Range
Click here to see the full advisory for 2014-12-24
December 24, 2014 at 6:54

AVALANCHE WARNING issued for entire advisory area including the Whitefish, Swan, and Flathead Ranges, and portions of Glacier Park. The avalanche hazard is HIGH. Very dangerous avalanche conditions exist. Human triggered avalanches reported every day over the last four days. New snow and winds over buried surface hoar 1.5 to 2.5 feet deep make human triggered avalanches very likely and natural avalanches likely with the potential to be large and destructive. Travel in avalanche terrain is not recommended. 

Flathead Range and Glacier National Park
Click here to see the full advisory for 2014-12-24
December 24, 2014 at 6:54

AVALANCHE WARNING issued for entire advisory area including the Whitefish, Swan, and Flathead Ranges, and portions of Glacier Park. The avalanche hazard is HIGH. Very dangerous avalanche conditions exist. Human triggered avalanches reported every day over the last four days. New snow and winds over buried surface hoar 1.5 to 2.5 feet deep make human triggered avalanches very likely and natural avalanches likely with the potential to be large and destructive. Travel in avalanche terrain is not recommended. 

Whitefish Range
Click here to see the full advisory for 2014-12-24
December 24, 2014 at 7:00

AVALANCHE WARNING issued for entire advisory area including the Whitefish, Swan, and Flathead Ranges, and portions of Glacier Park. The avalanche hazard is HIGH. Very dangerous avalanche conditions exist. Human triggered avalanches reported every day over the last four days. New snow and winds over buried surface hoar 1.5 to 2.5 feet deep make human triggered avalanches very likely and natural avalanches likely with the potential to be large and destructive. Travel in avalanche terrain is not recommended. 

Swan Range
Click here to see the full advisory for 2014-12-24
December 24, 2014 at 7:00

AVALANCHE WARNING issued for entire advisory area including the Whitefish, Swan, and Flathead Ranges, and portions of Glacier Park. The avalanche hazard is HIGH. Very dangerous avalanche conditions exist. Human triggered avalanches reported every day over the last four days. New snow and winds over buried surface hoar 1.5 to 2.5 feet deep make human triggered avalanches very likely and natural avalanches likely with the potential to be large and destructive. Travel in avalanche terrain is not recommended. 

Flathead Range and Glacier National Park
Click here to see the full advisory for 2014-12-24
December 24, 2014 at 7:00

AVALANCHE WARNING issued for entire advisory area including the Whitefish, Swan, and Flathead Ranges, and portions of Glacier Park. The avalanche hazard is HIGH. Very dangerous avalanche conditions exist. Human triggered avalanches reported every day over the last four days. New snow and winds over buried surface hoar 1.5 to 2.5 feet deep make human triggered avalanches very likely and natural avalanches likely with the potential to be large and destructive. Travel in avalanche terrain is not recommended. 

Whitefish Range
Click here to see the full advisory for 2014-12-25
December 25, 2014 at 7:00

AVALANCHE WARNING above 5000 ft. continues. HIGH hazard exists above 5000 ft. as human triggered avalanches are very likely on slopes steeper than 34 degrees. It's still likely to trigger an avalanche on less steep slopes and lower elevations where there is a CONSIDERABLE hazard. A weak layer (buried surface hoar) 2-3 feet below the surface continues to cause problems. Avalanches were reported every day since last Saturday and current conditions require sticking to simple low angled terrain.

Swan Range
Click here to see the full advisory for 2014-12-25
December 25, 2014 at 7:00

AVALANCHE WARNING above 5000 ft. continues. HIGH hazard exists above 5000 ft. as human triggered avalanches are very likely on slopes steeper than 34 degrees. It's still likely to trigger an avalanche on less steep slopes and lower elevations where there is a CONSIDERABLE hazard. A weak layer (buried surface hoar) 2-3 feet below the surface continues to cause problems. Avalanches were reported every day since last Saturday and current conditions require sticking to simple low angled terrain.

Flathead Range and Glacier National Park
Click here to see the full advisory for 2014-12-25
December 25, 2014 at 7:00

AVALANCHE WARNING above 5000 ft. continues. HIGH hazard exists above 5000 ft. as human triggered avalanches are very likely on slopes steeper than 34 degrees. It's still likely to trigger an avalanche on less steep slopes and lower elevations where there is a CONSIDERABLE hazard. A weak layer (buried surface hoar) 2-3 feet below the surface continues to cause problems. Avalanches were reported every day since last Saturday and current conditions require sticking to simple low angled terrain.

Whitefish Range
Click here to see the full advisory for 2014-12-26
December 26, 2014 at 7:03

The AVALANCHE WARNING has expired, however dangerous conditions persist in the advisory area. Though natural avalanche activity should decrease today, human triggered avalanches remain likely. Continue to choose conservative, low angle terrain if traveling in the backcountry.

Whitefish Range
Click here to see the full advisory for 2014-12-26
December 26, 2014 at 7:03

The AVALANCHE WARNING has expired, however dangerous conditions persist in the advisory area. Though natural avalanche activity should decrease today, human triggered avalanches remain likely. Continue to choose conservative, low angle terrain if traveling in the backcountry.

Swan Range
Click here to see the full advisory for 2014-12-26
December 26, 2014 at 7:03

The AVALANCHE WARNING has expired, however dangerous conditions persist in the advisory area. Though natural avalanche activity should decrease today, human triggered avalanches remain likely. Continue to choose conservative, low angle terrain if traveling in the backcountry.

Flathead Range and Glacier National Park
Click here to see the full advisory for 2014-12-27
December 27, 2014 at 7:00

Recent human triggered and natural avalanches associated with a a layer of buried surface hoar were reported in six of the last seven days. Though obvious signs of instability may subside, little has changed to improve this weak layer. For today the avalanche hazard is rated considerable above 5000 feet. Human triggered avalanches are likely, particularly on steep slopes. Continue to play it safe and avoid steep terrain and convex roll-overs.

Whitefish Range
Click here to see the full advisory for 2014-12-27
December 27, 2014 at 7:00

Recent human triggered and natural avalanches associated with a a layer of buried surface hoar were reported in six of the last seven days. Though obvious signs of instability may subside, little has changed to improve this weak layer. For today the avalanche hazard is rated considerable above 5000 feet. Human triggered avalanches are likely, particularly on steep slopes. Continue to play it safe and avoid steep terrain and convex roll-overs.

Swan Range
Click here to see the full advisory for 2014-12-27
December 27, 2014 at 7:00

Recent human triggered and natural avalanches associated with a a layer of buried surface hoar were reported in six of the last seven days. Though obvious signs of instability may subside, little has changed to improve this weak layer. For today the avalanche hazard is rated considerable above 5000 feet. Human triggered avalanches are likely, particularly on steep slopes. Continue to play it safe and avoid steep terrain and convex roll-overs.

Flathead Range and Glacier National Park
Click here to see the full advisory for 2014-12-27
December 27, 2014 at 7:00

Recent human triggered and natural avalanches associated with  a layer of buried surface hoar were reported in six of the last seven days. Though obvious signs of instability may subside, little has changed to improve this weak layer. For today the avalanche hazard is rated considerable above 5000 feet. Human triggered avalanches are likely, particularly on steep slopes. Continue to play it safe and avoid steep terrain and convex roll-overs.

Whitefish Range
Click here to see the full advisory for 2014-12-27
December 27, 2014 at 7:00

Recent human triggered and natural avalanches associated with  a layer of buried surface hoar were reported in six of the last seven days. Though obvious signs of instability may subside, little has changed to improve this weak layer. For today the avalanche hazard is rated considerable above 5000 feet. Human triggered avalanches are likely, particularly on steep slopes. Continue to play it safe and avoid steep terrain and convex roll-overs.

Swan Range
Click here to see the full advisory for 2014-12-27
December 27, 2014 at 7:00

Recent human triggered and natural avalanches associated with  a layer of buried surface hoar were reported in six of the last seven days. Though obvious signs of instability may subside, little has changed to improve this weak layer. For today the avalanche hazard is rated considerable above 5000 feet. Human triggered avalanches are likely, particularly on steep slopes. Continue to play it safe and avoid steep terrain and convex roll-overs.

Flathead Range and Glacier National Park
Click here to see the full advisory for 2014-12-28
December 28, 2014 at 6:50

Substantial new snowfall and wind drifted snow in the past 24 hours added a considerable amount stress to a previously weak snow pack. Today, wind loaded terrain is rated as HIGH, travel in this terrain is not recommended. Non-windloaded slopes are rated CONSIDERABLE meaning that human triggered avalanches remain likely. Conservative decision making and terrain selection are essential today. Avoid wind loaded terrain and run-out zones.

Whitefish Range
Click here to see the full advisory for 2014-12-28
December 28, 2014 at 6:50

Substantial new snowfall and wind drifted snow in the past 24 hours added a considerable amount stress to a previously weak snow pack. Today, wind loaded terrain is rated as HIGH, travel in this terrain is not recommended. Non-windloaded slopes are rated CONSIDERABLE meaning that human triggered avalanches remain likely. Conservative decision making and terrain selection are essential today. Avoid wind loaded terrain and run-out zones.

Flathead Range and Glacier National Park
Click here to see the full advisory for 2014-12-28
December 28, 2014 at 7:00

An AVALANCHE WARNING has been issued for the Swan Range for today. Substantial new snowfall and wind drifted snow in the past 24 hours added a considerable amount of stress to a previously weak snow pack. For today, terrain above 6000 feet in the Swan Range is rated HIGH. Travel in this terrain is not recommended and run-out zones should be avoided.

Swan Range
Click here to see the full advisory for 2014-12-29
December 29, 2014 at 8:35 Whitefish Range
Click here to see the full advisory for 2014-12-29
December 29, 2014 at 8:35 Swan Range
Click here to see the full advisory for 2014-12-29
December 29, 2014 at 8:35 Flathead Range and Glacier National Park
Click here to see the full advisory for 2014-12-30
December 30, 2014 at 6:42

Tricky snowpack conditions require conservative decision making and careful terrain selection. Numerous human triggered avalanches were reported over the past eight days failing on a weak layer (buried surface hoar) 2-3 feet from the surface. Moderate to strong north-northeast winds over the past 48 hours created wind slabs above 5000 feet. Avoid wind loaded slopes and continue to stick to simple, low angled terrain. The avalanche hazard is CONSIDERABLE above 5000 feet and MODERATE below 5000 feet today. 

Whitefish Range
Click here to see the full advisory for 2014-12-30
December 30, 2014 at 6:42

Tricky snowpack conditions require conservative decision making and careful terrain selection. Numerous human triggered avalanches were reported over the past eight days failing on a weak layer (buried surface hoar) 2-3 feet from the surface. Moderate to strong north-northeast winds over the past 48 hours created wind slabs above 5000 feet. Avoid wind loaded slopes and continue to stick to simple, low angled terrain. The avalanche hazard is CONSIDERABLE above 5000 feet and MODERATE below 5000 feet today. 

Swan Range
Click here to see the full advisory for 2014-12-30
December 30, 2014 at 6:42

Tricky snowpack conditions require conservative decision making and careful terrain selection. Numerous human triggered avalanches were reported over the past eight days failing on a weak layer (buried surface hoar) 2-3 feet from the surface. Moderate to strong north-northeast winds over the past 48 hours created wind slabs above 5000 feet. Avoid wind loaded slopes and continue to stick to simple, low angled terrain. The avalanche hazard is CONSIDERABLE above 5000 feet and MODERATE below 5000 feet today. 

Flathead Range and Glacier National Park

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