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., Tuesday, June 26, 2018
E.g., Tuesday, June 26, 2018
E.g., Tuesday, June 26, 2018
Date the advisory was published:sort ascending Forecast Region
Click here to see the full advisory for 2018-04-02
April 2, 2018 at 7:04

The return of snow and wind has elevated the avalanche danger. In many locations, fresh slabs are resting on a surface crust which will inhibit bonding. Evaluate new snow amounts and look for cracking in the snow surface. Safer riding will be in non-wind loaded terrain.

Whitefish Range
Click here to see the full advisory for 2018-04-02
April 2, 2018 at 6:56

The return of snow and wind has elevated the avalanche danger. In many locations, fresh slabs are resting on a surface crust which will inhibit bonding. Evaluate wind loaded terrain before committing to a slope. Cracking in the snow surface is a sign of instability. Safer riding will be in non-wind loaded terrain.

Swan Range
Click here to see the full advisory for 2018-04-02
April 2, 2018 at 6:56

The return of snow and wind has elevated the avalanche danger. In many locations, fresh slabs are resting on a surface crust which will inhibit bonding. Evaluate wind loaded terrain before committing to a slope. Cracking in the snow surface is a sign of instability. Safer riding will be in non-wind loaded terrain.

Flathead Range and Glacier National Park
Click here to see the full advisory for 2018-04-01
April 1, 2018 at 7:00

The snowpack is generally stable. Lingering wind slab instabilities remain, especially near the Continental Divide. A potent storm will impact our area later today with the avalanche danger rising around sunset. Be prepared for changing conditions.

Whitefish Range
Click here to see the full advisory for 2018-04-01
April 1, 2018 at 7:00

The snowpack is generally stable. Lingering wind slab instabilities remain, especially near the Continental Divide. A potent storm will impact our area later today with the avalanche danger rising around sunset. Be prepared for changing conditions.

Swan Range
Click here to see the full advisory for 2018-04-01
April 1, 2018 at 7:00

The snowpack is generally stable. Lingering wind slab instabilities remain, especially near the Continental Divide. A potent storm will impact our area later today with the avalanche danger rising around sunset. Be prepared for changing conditions.

Flathead Range and Glacier National Park
Click here to see the full advisory for 2018-03-31
March 31, 2018 at 7:13

Gusty shifting winds are forming isolated thin slabs on all aspects. The snowpack is generally stable. Evaluate all wind-loaded slopes and look for surface cracks as a sign of instability.

Whitefish Range
Click here to see the full advisory for 2018-03-31
March 31, 2018 at 7:13

Gusty shifting winds are forming isolated thin slabs on all aspects. The snowpack is generally stable. Evaluate all wind-loaded slopes and look for surface cracks as a sign of instability.

Swan Range
Click here to see the full advisory for 2018-03-31
March 31, 2018 at 7:00

Recent snow and shifting winds are forming thin slabs on all aspects. Slabs will be thickest and most reactive near the Continental Divide. Evaluate all wind-loaded slopes and look for surface cracks as a sign of instability.

Flathead Range and Glacier National Park
Click here to see the full advisory for 2018-03-30
March 30, 2018 at 7:02

The return of snow and wind may form thin slabs over a variety of snow surfaces. The danger is MODERATE but could rise to CONSIDERABLE by this afternoon. Evaluate snow totals and look for surface cracks as a sign of instability.

Whitefish Range
Click here to see the full advisory for 2018-03-30
March 30, 2018 at 7:02

The return of snow and wind may form thin slabs over a variety of snow surfaces. The danger is MODERATE but could rise to CONSIDERABLE by this afternoon. Evaluate snow totals and look for surface cracks as a sign of instability.

Swan Range
Click here to see the full advisory for 2018-03-30
March 30, 2018 at 7:02

The return of snow and wind may form thin slabs over a variety of snow surfaces. The danger is MODERATE but could rise to CONSIDERABLE by this afternoon. Evaluate snow totals and look for surface cracks as a sign of instability.

Flathead Range and Glacier National Park
Click here to see the full advisory for 2018-03-29
March 29, 2018 at 6:55

Thick wind slabs exist on leeward terrain features at mid and upper elevations. These slabs are more difficult to trigger today but are more extensive in distribution from unusually strong winds earlier in the week. Wind sheltered terrain offers the safest and best riding conditions today.

Whitefish Range
Click here to see the full advisory for 2018-03-29
March 29, 2018 at 6:55

Thick wind slabs exist on leeward terrain features at mid and upper elevations. These slabs are more difficult to trigger today but are more extensive in distribution from unusually strong winds earlier in the week. Wind sheltered terrain offers the safest and best riding conditions today.

Swan Range
Click here to see the full advisory for 2018-03-29
March 29, 2018 at 6:55

Thick wind slabs exist on leeward terrain features at mid and upper elevations. These slabs are more difficult to trigger today but are more extensive in distribution from unusually strong winds earlier in the week. Wind sheltered terrain offers the safest and best riding conditions today.

Flathead Range and Glacier National Park
Click here to see the full advisory for 2018-03-28
March 28, 2018 at 7:00

Unusually strong winds have formed tender slabs on leeward terrain features at mid and upper elevations. Yesterday, skiers triggered numerous wind slabs up to several feet thick.  Wind protected terrain offers the safest and best riding conditions today.

Flathead Range and Glacier National Park
Click here to see the full advisory for 2018-03-28
March 28, 2018 at 6:59

Unusually strong winds have formed tender slabs on leeward terrain features at mid and upper elevations. Yesterday, skiers triggered numerous wind slabs up to several feet thick.  Wind protected terrain offers the safest and best riding conditions today.

Whitefish Range
Click here to see the full advisory for 2018-03-28
March 28, 2018 at 6:59

Unusually strong winds have formed tender slabs on leeward terrain features at mid and upper elevations. Yesterday, skiers triggered numerous wind slabs up to several feet thick.  Wind protected terrain offers the safest and best riding conditions today.

Swan Range
Click here to see the full advisory for 2018-03-27
March 27, 2018 at 6:32

Watch for changing conditions and the danger to rise to MODERATE by this afternoon.  New snow drifted by strong westerly winds will form small, easily triggered slabs in leeward terrain.

Swan Range
Click here to see the full advisory for 2018-03-27
March 27, 2018 at 6:32

Watch for changing conditions and the danger to rise to MODERATE by this afternoon.  New snow drifted by strong westerly winds will form small, easily triggered slabs in leeward terrain.

Flathead Range and Glacier National Park
Click here to see the full advisory for 2018-03-27
March 27, 2018 at 6:32

Watch for changing conditions and the danger to rise to MODERATE by this afternoon.  New snow drifted by strong westerly winds will form small, easily triggered slabs in leeward terrain.

Whitefish Range
Click here to see the full advisory for 2018-03-26
March 26, 2018 at 6:59

The snowpack is generally stable.  Watch for small pockets of unstable snow in leeward terrain.  Continue to practice safe travel techniques.

Swan Range
Click here to see the full advisory for 2018-03-26
March 26, 2018 at 6:59

The snowpack is generally stable.  Watch for small pockets of unstable snow in leeward terrain.  Continue to practice safe travel techniques.

Flathead Range and Glacier National Park
Click here to see the full advisory for 2018-03-26
March 26, 2018 at 6:59

The snowpack is generally stable.  Watch for small pockets of unstable snow in leeward terrain.  Continue to practice safe travel techniques.

Whitefish Range
Click here to see the full advisory for 2018-03-25
March 25, 2018 at 6:59

Yesterday's winds formed thin slabs on top of a crust at upper elevations. The snowpack is generally stable on slopes that have not been wind loaded and at lower elevations. Evaluate leeward terrain before committing to a slope.

Swan Range
Click here to see the full advisory for 2018-03-25
March 25, 2018 at 6:59

Yesterday's winds formed thin slabs on top of a crust at upper elevations. The snowpack is generally stable on slopes that have not been wind loaded and at lower elevations. Evaluate leeward terrain before committing to a slope.

Flathead Range and Glacier National Park
Click here to see the full advisory for 2018-03-25
March 25, 2018 at 6:59

Yesterday's winds formed thin slabs on top of a crust at upper elevations. The snowpack is generally stable on slopes that have not been wind loaded and at lower elevations. Evaluate leeward terrain before committing to a slope.

Whitefish Range
Click here to see the full advisory for 2018-03-24
March 24, 2018 at 7:00

Instabilities within recently formed thin wind slabs exist at upper elevations. Wind and snow will add thickness to these slabs today. Generally, safe conditions exist in areas without wind loading.  Evaluate all wind-loaded slopes especially in the alpine terrain. Surface cracking is a tell-tale sign of a slab.

Swan Range
Click here to see the full advisory for 2018-03-24
March 24, 2018 at 7:00

Instabilities within recently formed thin wind slabs exist at upper elevations. Wind and snow will add thickness to these slabs today. Generally, safe conditions exist in areas without wind loading.  Evaluate all wind-loaded slopes especially in the alpine terrain. Surface cracking is a tell-tale sign of a slab.

Flathead Range and Glacier National Park
Click here to see the full advisory for 2018-03-24
March 24, 2018 at 7:00

Instabilities within recently formed thin wind slabs exist at upper elevations. Wind and snow will add thickness to these slabs today. Generally, safe conditions exist in areas without wind loading.  Evaluate all wind-loaded slopes especially in the alpine terrain. Surface cracking is a tell-tale sign of a slab.

Whitefish Range

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