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., Friday, October 20, 2017
E.g., Friday, October 20, 2017
E.g., Friday, October 20, 2017
Date the advisory was published:sort ascending Forecast Region
Click here to see the full advisory for 2017-10-20
October 20, 2017 at 9:35

Fall Advisory Statement:  A series of increasingly powerful systems will bring snow and wind to high elevations through the weekend.  Watch for changing conditions and isolated instabilities developing on wind-loaded slopes above treeline.  Exposed rocks and cliffs will amplify the consequences of an avalanche. Identify and avoid thicker deposits of wind-drifted snow.  The FAC will monitor conditions through the fall and post updates as the snowpack evolves.  

Whitefish Range
Click here to see the full advisory for 2017-10-20
October 20, 2017 at 9:35

Fall Advisory Statement:  A series of increasingly powerful systems will bring snow and wind to high elevations through the weekend.  Watch for changing conditions and isolated instabilities developing on wind-loaded slopes above treeline.  Exposed rocks and cliffs will amplify the consequences of an avalanche. Identify and avoid thicker deposits of wind-drifted snow.  The FAC will monitor conditions through the fall and post updates as the snowpack evolves.  

Swan Range
Click here to see the full advisory for 2017-10-20
October 20, 2017 at 9:35

Fall Advisory Statement:  A series of increasingly powerful systems will bring snow and wind to high elevations through the weekend.  Watch for changing conditions and isolated instabilities developing on wind-loaded slopes above treeline.  Exposed rocks and cliffs will amplify the consequences of an avalanche. Identify and avoid thicker deposits of wind-drifted snow.  The FAC will monitor conditions through the fall and post updates as the snowpack evolves.  

Flathead Range and southern Glacier National Park
Click here to see the full advisory for 2017-10-15
October 15, 2017 at 7:36

Fall Advisory Statement:  Avalanche accidents can happen long before the chairlifts start spinning.  Recent snow accompanied by gusty winds has increased the threat of sensitive wind slabs at higher elevations.  Be wary of fresh wind drifts below ridgelines or in cross-loaded gullies.  Even a small avalanche can have severe consequences if you get dragged into rocks or through vegetation.   The FAC will monitor conditions through the fall and post updates as the snowpack evolves. 

Whitefish Range
Click here to see the full advisory for 2017-10-15
October 15, 2017 at 7:36

Fall Advisory Statement:  Avalanche accidents can happen long before the chairlifts start spinning.  Recent snow accompanied by gusty winds has increased the threat of sensitive wind slabs at higher elevations.  Be wary of fresh wind drifts below ridgelines or in cross-loaded gullies.  Even a small avalanche can have severe consequences if you get dragged into rocks or through vegetation.   The FAC will monitor conditions through the fall and post updates as the snowpack evolves. 

Swan Range
Click here to see the full advisory for 2017-10-15
October 15, 2017 at 7:36

Fall Advisory Statement:  Avalanche accidents can happen long before the chairlifts start spinning.  Recent snow accompanied by gusty winds has increased the threat of sensitive wind slabs at higher elevations.  Be wary of fresh wind drifts below ridgelines or in cross-loaded gullies.  Even a small avalanche can have severe consequences if you get dragged into rocks or through vegetation.   The FAC will monitor conditions through the fall and post updates as the snowpack evolves. 

Flathead Range and southern Glacier National Park
Click here to see the full advisory for 2017-10-02
October 2, 2017 at 20:13

Fall Advisory Statement:  Avalanche accidents can happen long before the chairlifts start spinning.  If you are traveling on high elevation, snow-covered slopes, be mindful of isolated instabilities.  The consequences of a small avalanche this time of year are amplified by rocks, trees, or cliffs.  Be wary of windloaded or deeper snow in alpine terrain, especially where it has accumulated over old snow or ice layers.  The FAC will monitor conditions through the fall and post updates as the snowpack evolves. 

Whitefish Range
Click here to see the full advisory for 2017-10-02
October 2, 2017 at 20:13

Fall Advisory Statement:  Avalanche accidents can happen long before the chairlifts start spinning.  If you are traveling on high elevation, snow-covered slopes, be mindful of isolated instabilities.  The consequences of a small avalanche this time of year are amplified by rocks, trees, or cliffs.  Be wary of windloaded or deeper snow in alpine terrain, especially where it has accumulated over old snow or ice layers.  The FAC will monitor conditions through the fall and post updates as the snowpack evolves. 

Swan Range
Click here to see the full advisory for 2017-10-02
October 2, 2017 at 20:13

Fall Advisory Statement:  Avalanche accidents can happen long before the chairlifts start spinning.  If you are traveling on high elevation, snow-covered slopes, be mindful of isolated instabilities.  The consequences of a small avalanche this time of year are amplified by rocks, trees, or cliffs.  Be wary of windloaded or deeper snow in alpine terrain, especially where it has accumulated over old snow or ice layers.  The FAC will monitor conditions through the fall and post updates as the snowpack evolves. 

Flathead Range and southern Glacier National Park
Click here to see the full advisory for 2017-04-30
April 30, 2017 at 2:09

Spring Avalanche Statement -Spring in northwest Montana brings a mixed bag of weather. Snow, rain, sun, and everything in between can occur all in one day. This can greatly affect avalanche conditions. It is essential to pay attention to changing conditions as these changes can happen rapidly and stability can also deteriorate fairly quickly. Avalanches still happen in the spring and it is important to not let your guard down.

Whitefish Range
Click here to see the full advisory for 2017-04-30
April 30, 2017 at 2:09

Spring Avalanche Statement -Spring in northwest Montana brings a mixed bag of weather. Snow, rain, sun, and everything in between can occur all in one day. This can greatly affect avalanche conditions. It is essential to pay attention to changing conditions as these changes can happen rapidly and stability can also deteriorate fairly quickly. Avalanches still happen in the spring and it is important to not let your guard down.

Swan Range
Click here to see the full advisory for 2017-04-30
April 30, 2017 at 2:09

Spring Avalanche Statement -Spring in northwest Montana brings a mixed bag of weather. Snow, rain, sun, and everything in between can occur all in one day. This can greatly affect avalanche conditions. It is essential to pay attention to changing conditions as these changes can happen rapidly and stability can also deteriorate fairly quickly. Avalanches still happen in the spring and it is important to not let your guard down.

Flathead Range and southern Glacier National Park
Click here to see the full advisory for 2017-04-28
April 28, 2017 at 7:36

Special Advisory Statement: Significant amounts of new snow combined with a warming trend will create dangerous avalanche conditions into the weekend, especially on Saturday.  Natural loose wet avalanches will become likely under rising freezing levels and direct sunshine (see video).  With snowfall in excess of 20" in higher terrain, these slides can entrain dangerously large volumes. Watch for rapidly changing conditions and be mindful of overhead hazards if you are traveling in the mountains this weekend.

Whitefish Range
Click here to see the full advisory for 2017-04-28
April 28, 2017 at 7:36

Special Advisory Statement: Significant amounts of new snow combined with a warming trend will create dangerous avalanche conditions into the weekend, especially on Saturday.  Natural loose wet avalanches will become likely under rising freezing levels and direct sunshine (see video).  With snowfall in excess of 20" in higher terrain, these slides can entrain dangerously large volumes. Watch for rapidly changing conditions and be mindful of overhead hazards if you are traveling in the mountains this weekend.

Swan Range
Click here to see the full advisory for 2017-04-28
April 28, 2017 at 7:36

Special Advisory Statement: Significant amounts of new snow combined with a warming trend will create dangerous avalanche conditions into the weekend, especially on Saturday.  Natural loose wet avalanches will become likely under rising freezing levels and direct sunshine (see video).  With snowfall in excess of 20" in higher terrain, these slides can entrain dangerously large volumes. Watch for rapidly changing conditions and be mindful of overhead hazards if you are traveling in the mountains this weekend.

Flathead Range and southern Glacier National Park
Click here to see the full advisory for 2017-04-10
April 10, 2017 at 6:00

Spring Avalanche Statement -Spring in northwest Montana brings a mixed bag of weather. Snow, rain, sun, and everything in between can occur all in one day. This can greatly affect avalanche conditions. It is essential to pay attention to changing conditions as these changes can happen rapidly and stability can also deteriorate fairly quickly. Avalanches still happen in the spring and it is important to not let your guard down.

Whitefish Range
Click here to see the full advisory for 2017-04-10
April 10, 2017 at 6:00

Spring Avalanche Statement -Spring in northwest Montana brings a mixed bag of weather. Snow, rain, sun, and everything in between can occur all in one day. This can greatly affect avalanche conditions. It is essential to pay attention to changing conditions as these changes can happen rapidly and stability can also deteriorate fairly quickly. Avalanches still happen in the spring and it is important to not let your guard down.

Swan Range
Click here to see the full advisory for 2017-04-10
April 10, 2017 at 6:00

Spring Avalanche Statement -Spring in northwest Montana brings a mixed bag of weather. Snow, rain, sun, and everything in between can occur all in one day. This can greatly affect avalanche conditions. It is essential to pay attention to changing conditions as these changes can happen rapidly and stability can also deteriorate fairly quickly. Avalanches still happen in the spring and it is important to not let your guard down.

Flathead Range and southern Glacier National Park
Click here to see the full advisory for 2017-04-09
April 9, 2017 at 6:57

Light snow overnight, combined with wind, has elevated the avalanche danger. This new and windblown snow is being deposited onto a crust which will act as a slippery bed surface for wind slabs and storm slabs. The avalanche danger is MODERATE above 5000'. Evaluate all wind loaded terrain and areas favored by snowfall before committing to a slope. Today is the last daily advisory issued by the FAC for the season. 

 

Whitefish Range
Click here to see the full advisory for 2017-04-09
April 9, 2017 at 6:57

Light snow overnight, combined with wind, has elevated the avalanche danger. This new and windblown snow is being deposited onto a crust which will act as a slippery bed surface for wind slabs and storm slabs. The avalanche danger is MODERATE above 5000'. Evaluate all wind loaded terrain and areas favored by snowfall before committing to a slope. Today is the last daily advisory issued by the FAC for the season. 

 

Swan Range
Click here to see the full advisory for 2017-04-09
April 9, 2017 at 6:57

Light snow overnight, combined with wind, has elevated the avalanche danger. This new and windblown snow is being deposited onto a crust which will act as a slippery bed surface for wind slabs and storm slabs. The avalanche danger is MODERATE above 5000'. Evaluate all wind loaded terrain and areas favored by snowfall before committing to a slope. Today is the last daily advisory issued by the FAC for the season. 

 

Flathead Range and southern Glacier National Park
Click here to see the full advisory for 2017-04-08
April 8, 2017 at 6:51

Cool overnight temperatures have formed a thin surface crust at all elevations. This crust will weaken throughout the day as temperatures warm and especially if forecasted precipitation enters our area sooner than expected. At upper elevations there exists a layer of unconsolidated surface snow that is susceptible to triggering a larger wet loose avalanche. The avalanche danger is LOW. Pay attention to changing snow surface and weather conditions today while continuing to practice safe backcountry travel techniques.

 

Whitefish Range
Click here to see the full advisory for 2017-04-08
April 8, 2017 at 6:51

Cool overnight temperatures have formed a thin surface crust at all elevations. This crust will weaken throughout the day as temperatures warm and especially if forecasted precipitation enters our area sooner than expected. At upper elevations there exists a layer of unconsolidated surface snow that is susceptible to triggering a larger wet loose avalanche. The avalanche danger is LOW. Pay attention to changing snow surface and weather conditions today while continuing to practice safe backcountry travel techniques.

 

Swan Range
Click here to see the full advisory for 2017-04-08
April 8, 2017 at 6:51

Cool overnight temperatures have formed a thin surface crust at all elevations. This crust will weaken throughout the day as temperatures warm and especially if forecasted precipitation enters our area sooner than expected. At upper elevations there exists a layer of unconsolidated surface snow that is susceptible to triggering a larger wet loose avalanche. The avalanche danger is LOW. Pay attention to changing snow surface and weather conditions today while continuing to practice safe backcountry travel techniques.

 

Flathead Range and southern Glacier National Park
Click here to see the full advisory for 2017-04-07
April 7, 2017 at 7:00

Heightened wet avalanche concerns exist due to continued warm temperatures and rain on recent, unconsolidated snow. The avalanche danger is MODERATE above 6000 feet where human triggered avalanches are possible. Pay attention to changing weather conditions today. More rain than anticipated could result in deeper instabilities and increase the potential for larger wet avalanches. Below 6000 feet the danger is LOW.

 

Whitefish Range
Click here to see the full advisory for 2017-04-07
April 7, 2017 at 7:00

Heightened wet avalanche concerns exist due to continued warm temperatures and rain on recent, unconsolidated snow. The avalanche danger is MODERATE above 6000 feet where human triggered avalanches are possible. Pay attention to changing weather conditions today. More rain than anticipated could result in deeper instabilities and increase the potential for larger wet avalanches. Below 6000 feet the danger is LOW.

 

Swan Range
Click here to see the full advisory for 2017-04-07
April 7, 2017 at 7:00

Heightened wet avalanche concerns exist due to continued warm temperatures and rain on recent, unconsolidated snow. The avalanche danger is MODERATE above 6000 feet where human triggered avalanches are possible. Pay attention to changing weather conditions today. More rain than anticipated could result in deeper instabilities and increase the potential for larger wet avalanches. Below 6000 feet the danger is LOW.

 

Flathead Range and southern Glacier National Park
Click here to see the full advisory for 2017-04-06
April 6, 2017 at 7:00

Warm temperatures with rain and snow showers today will raise the avalanche danger to MODERATE at all elevations.   The warm temperatures and rain may weaken the surface snow, making it possible to trigger a loose wet avalanche. Pay attention to changing conditions.  If the sun does make an appearance, expect it to increase instability.

 

Whitefish Range
Click here to see the full advisory for 2017-04-06
April 6, 2017 at 7:00

Warm temperatures with rain and snow showers today will raise the avalanche danger to MODERATE at all elevations.   The warm temperatures and rain may weaken the surface snow, making it possible to trigger a loose wet avalanche. Pay attention to changing conditions.  If the sun does make an appearance, expect it to increase instability.

 

Swan Range
Click here to see the full advisory for 2017-04-06
April 6, 2017 at 7:00

Warm temperatures with rain and snow showers today will raise the avalanche danger to MODERATE at all elevations.   The warm temperatures and rain may weaken the surface snow, making it possible to trigger a loose wet avalanche. Pay attention to changing conditions.  If the sun does make an appearance, expect it to increase instability.

 

Flathead Range and southern Glacier National Park

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