You are here

Archived Avalanche Advisories from the Mount Shasta Avalanche Center

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.

More information?
More information?
Date the advisory was published: Bottom Line
Click here to see the full advisory for
January 4, 2018 at 6:53 am

Above treeline on Mount Shasta, the avalanche danger is MODERATE. Human triggered avalanches are possible on steep, recently wind drifted slopes and particularly on slopes facing the north half of the compass.  Near and below treeline offers generally LOW avalanche danger with continued shallow snowpack hazards. Watch out for icy slopes in select areas on the upper mountain.

Click here to see the full advisory for
January 3, 2018 at 6:12 am

LOW avalanche danger and generally safe avalanche conditions exist. Sparse coverage and icy slopes present significant travel hazards in the backcountry. Monitor changing conditions Thursday and Friday with rain and snow expected.

Click here to see the full advisory for
January 2, 2018 at 6:50 am

LOW avalanche danger and generally safe avalanche conditions exist. Sparse coverage and icy slopes present significant travel hazards in the backcountry. 

Click here to see the full advisory for
January 1, 2018 at 6:43 am

LOW avalanche danger and generally safe avalanche conditions exist. Sparse coverage and icy slopes present significant travel hazards in the backcountry. 

Click here to see the full advisory for
December 31, 2017 at 6:50 am

LOW avalanche danger and normal caution continue. Generally safe avalanche conditions exist. Sparse coverage and firm and icy slopes present significant travel hazards in the backcountry. 

Click here to see the full advisory for
December 30, 2017 at 6:06 am

LOW avalanche danger and normal caution continue. Generally safe avalanche conditions exist. Sparse coverage and firm and icy slopes present significant travel hazards on Mt Shasta. 

Click here to see the full advisory for
December 29, 2017 at 6:00 am

LOW avalanche danger and normal caution continue. Generally safe avalanche conditions exist. Sparse coverage and firm and icy slopes present significant travel hazards on Mt Shasta. 

Click here to see the full advisory for
December 28, 2017 at 6:44 am

LOW avalanche danger and normal caution continue. Generally safe avalanche conditions exist. Sparse coverage and firm and icy slopes present significant travel hazards on Mt Shasta. 

Click here to see the full advisory for
December 27, 2017 at 6:16 am

Avalanche danger is LOW at all elevations. Normal caution is advised. Sparse coverage and firm icy slopes present significant travel hazards in the backcountry.

Click here to see the full advisory for
December 26, 2017 at 7:00 am

LOW avalanche danger and normal caution continue. Generally safe avalanche conditions exist. Sparse coverage and firm and icy slopes present significant travel hazards in the backcountry.

Click here to see the full advisory for
December 25, 2017 at 7:00 am

LOW avalanche danger exists on all aspects and at all elevations. Normal caution is advised. Many shallow snowpack hazards exist. Use extreme caution in steep, upper elevation terrain where icy and firm snow surfaces are widespread.

Click here to see the full advisory for
December 24, 2017 at 6:45 am

Triggering an avalanche is unlikely, and LOW avalanche danger exists at all elevations. Watch for unstable snow on isolated terrain features. Shallow snowpack hazards are still problematic. Climbers and ski mountaineers should use extreme caution on steep slopes at upper elevations where icy and firm snow surfaces are widespread. 

Click here to see the full advisory for
December 23, 2017 at 6:28 am

Avalanche conditions are generally safe in the backcountry and LOW avalanche danger remains for all aspects & elevations. Evaluate terrain carefully, identify where avalanche problems exist and avoid those areas. Watch for unstable snow on isolated terrain features.



Scoured ridgelines and icy surfaces dominate the upper mountain along with many rocks protruding from the thin snowpack. Climbers and ski mountaineers, use extreme caution on steep slopes. Carry an ice axe, crampons and helmet and know how to use them.

 

Click here to see the full advisory for
December 22, 2017 at 6:38 am

For today, expect LOW avalanche danger on Mt Shasta for all elevations and aspects. Evaluate terrain carefully, identify where avalanche problems exists and avoid those areas. 



Scoured ridgelines and icy surfaces dominate the upper mountain along with many rocks protruding from the thin snowpack. Climbers and ski mountaineers, use extreme caution on steep slopes. Carry an ice axe, crampons and helmet and know how to use them.

 

Click here to see the full advisory for
December 21, 2017 at 6:22 am

For today, expect overall LOW avalanche danger on Mt Shasta. Watch for small, isolated wind slabs on leeward terrain near and above treeline. Scoured ridgelines and icy surfaces still exist along with many hidden rocks protruding from the thin snowpack. 

 

Click here to see the full advisory for
December 20, 2017 at 2:50 am

Avalanche danger is MODERATE near and above treeline due to wind slabs forming on leeward aspects greater than 35 degrees. Moderate means human triggered avalanches are possible and natural avalanches are unlikely. If riding in the backcountry today, watch out for rocks hidden below the new snow. Avalanche danger below treeline is LOW.

Click here to see the full advisory for
December 19, 2017 at 7:00 am

LOW avalanche danger continues throughout the advisory area today. The National Weather Service has issued a WINTER WEATHER ADVISORY IN EFFECT FROM 1PM THIS AFTERNOON TO 7AM WEDNESDAY. The avalanche danger will rise overnight. Wind slabs are expected to form near and above treeline by tomorrow.   

Click here to see the full advisory for
December 18, 2017 at 6:55 am

LOW avalanche danger continues throughout the advisory area. Firm and icy snow surfaces are widespread, and climbers should exercise caution in alpine terrain on Mount Shasta. The National Weather Service has issued a winter storm watch in effect Tuesday afternoon through Wednesday morning.

Click here to see the full advisory for
December 17, 2017 at 6:51 am

LOW avalanche danger exists throughout the advisory area and will continue until a significant precipitation event occurs. Early season hazards associated with our shallow snowpack are still problematic. Climbers should exercise caution in alpine terrain on Mount Shasta where firm and icy snow surfaces are widespread.  

Click here to see the full advisory for
December 16, 2017 at 6:31 am

LOW avalanche danger remains for all elevations and aspects. Gale force winds out of the north will preside near and above treeline on Mt Shasta today.  

Other notable hazards for the backcountry include: 

*firm, icy snow surfaces making self-arrest difficult

*numerous exposed and barely covered obstacles.  

*rime ice / rockfall 

Pages