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
December 10, 2017 at 6:52 am

The avalanche danger is LOW at all elevations and on all aspects today. Both human triggered and natural avalanches are unlikely.  Small wind slabs may exist in leeward terrain 10,000ft and higher on Mount Shasta. Very firm and icy snow surfaces can be found on the upper mountain as well. Arresting a fall in these conditions could be difficult.   

Click here to see the full advisory for
December 9, 2017 at 6:09 am

The avalanche danger is LOW at all elevations and aspects today. Use extra caution when traveling in exposed, steep terrain with high consequences where typically small and benign avalanches pose a significant hazard. Also, watch out for sudden patches of icy snow surfaces on the upper mountain. Self arrest could be difficult.

Click here to see the full advisory for
December 8, 2017 at 5:57 am

The avalanche danger is LOW at all elevations and aspects today. Extra caution is warranted when traveling in exposed, steep terrain with high consequences where typically small and benign avalanches pose a significant hazard. 

Watch out for sudden patches of icy snow surfaces on the upper mountain. Self arrest could be difficult and a slide for life possible.

Click here to see the full advisory for
December 7, 2017 at 6:30 am

Today, Mt Shasta hosts low avalanche danger. Normal caution is advised. Watch out for sudden patches of icy snow surfaces. Self arrest could be difficult and a slide for life possible. Isolated small, hard wind slabs exist near and above treeline and will be difficult to trigger.

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

The avalanche danger is LOW at all elevations throughout the advisory area. Natural and human triggered avalanches are unlikely. Exercise NORMAL CAUTION when traveling in the backcountry. Small wind slabs are unlikely to be seen, but could still linger in some alpine areas unaffected by the current warming trend.

Click here to see the full advisory for
December 5, 2017 at 7:00 am

The avalanche danger is LOW at all elevations throughout the advisory area. Small wind slabs may exist in isolated areas above treeline on Mount Shasta. Natural and human triggered avalanches are unlikely. Be sure to monitor changing snow surface conditions as temperatures rapidly warm up today.   

Click here to see the full advisory for
December 4, 2017 at 6:57 am

Wind slabs 1-2ft thick exist on NE-E-SE-S-SW aspects near treeline and above treeline. The avalanche danger is MODERATE above treeline and LOW near and below treeline today. Natural avalanches are unlikely while human triggered avalanches remain possible.

Click here to see the full advisory for
December 3, 2017 at 6:59 am

Shallow wind slabs have formed on NE-E-SE-S aspects near and above treeline on Mount Shasta. MODERATE avalanche danger exists above treeline, while the avalanche danger is LOW near and below treeline. Natural avalanches are unlikely, but small human triggered avalanches are possible on steep wind loaded slopes. Thin snow cover also poses a significant hazard for skiers and riders.  

Click here to see the full advisory for
December 2, 2017 at 6:46 am

A winter weather advisory is in effect today. Southwest winds will dominate along with a couple inches of new snow. Low danger and normal caution is advised. Early season conditions rule. Large objects like rocks, trees and shrubs can be seen easily, other small hazards may lurk below new snow surfaces. Tread lightly. 

Extremely icy conditions will be encountered on Mt Shasta above 8,000 feet. Be prepared. A climb of Mt Shasta with these conditions brings increased difficulty and consequences.

Click here to see the full advisory for
December 1, 2017 at 6:45 am

LOW Danger and Normal Caution is advised for the Mt Shasta area backcountry. Early season conditions prevail with our barely usable snowpack above 6,500 feet. Watch for rocks, trees and other objects sticking above the snow surface.

Extremely firm and icy conditions will be encountered on Mt Shasta above 8,000 feet. Self-arrest is nearly impossible, even on low angle slopes. Be prepared. A climb of Mt Shasta with these conditions brings increased difficulty and consequences.

Click here to see the full advisory for
November 4, 2017 at 7:53 am

Winter is right around the corner! The Mount Shasta Avalanche Center will begin issuing daily Avalanche Advisories in December. As the snow begins to fly, it's time to start thinking about avalanche safety if you plan to head into the backcountry. The fall is a great time to dust off your avalanche rescue skills and make sure all of your equipment is tuned and ready for winter. Check out our Fall Statement for more information on early season avalanche concerns.

Click here to see the full advisory for
April 16, 2017 at 6:33 am

The Mount Shasta Avalanche Center has closed its doors for the 2016-2017 winter season. We will resume issuing daily avalanche advisories in the fall of 2017.

The climbing rangers will be updating the Overall Climbing Conditions and Climbing Route webpages throughout the 2017 climbing season. Avalanche activity will likely continue to occur this spring throughout the advisory area. For an overview of the most common springtime avalanche concerns, please read the full spring avalanche statement below.

Click here to see the full advisory for
April 15, 2017 at 7:04 am

The avalanche danger is MODERATE near and above treeline. Warm temperatures and intense solar radiation will create wet and unconsolidated snow surfaces, and the likelihood of wet loose avalanches will increase throughout the day. Wind slabs also remain a concern, primarily on easterly aspects above treeline. The avalanche danger is LOW below treeline.

Click here to see the full advisory for
April 14, 2017 at 6:37 am

Avalanche danger is CONSIDERABLE above treeline and MODERATE near treeline. Wind slabs remain a concern and may continue to grow at higher elevations. Excercise caution when approaching slopes greater than 35 degrees. Cornice falls are also a concern. Stay off of slopes under large overhanging cornices today. Avalanche danger below treeline is LOW.

Click here to see the full advisory for
April 13, 2017 at 6:14 am

Avalanche danger is CONSIDERABLE near and above treeline due to the presence of wind slabs. Human triggered avalanches are likely and natural avalanches are possible. Evaluate the snowpack carefully and choose your routes wisely. Stay clear of wind loaded aspects greater than 35 degrees. Though unlikely, a secondary concern is storm slabs in sheltered areas. Avalanche danger below treeline is MODERATE.

Click here to see the full advisory for
April 12, 2017 at 6:28 am

Avalanche danger is expected to rise to CONSIDERABLE throughout the day due to the continued growth of wind slabs. Stay clear of wind loaded aspects greater than 35 degrees. Wind slabs will be most prevalent on NW-N-NE aspects, but mountain winds can be unpredictable so pay attention near all steep terrain. Avalanche danger is MODERATE below treeline due to the potential of a storm slab problem.

Click here to see the full advisory for
April 11, 2017 at 6:43 am

The avalanche danger is MODERATE near and above treeline. A potent winter storm will begin today bringing snowfall, gale force winds, and unseasonably cold temperatures. Wind slabs are the primary avalanche concern. Southerly winds continue to form wind slabs on W-NW-N-NE-E-SE aspects near and above treeline. Be sure to monitor conditions as they change, and anticipate increasing avalanche danger as the storm progresses over the next 24-48 hours. The avalanche danger is LOW below treeline.

Click here to see the full advisory for
April 10, 2017 at 6:51 am

The avalanche danger is MODERATE near and above treeline. Human triggered wind slab avalanches are possible. New snow and southwesterly winds continue to form shallow wind slabs on NW-N-NE-E-SE aspects near and above treeline. Natural avalanches are unlikely. LOW avalanche danger exists below treeline.

Click here to see the full advisory for
April 9, 2017 at 6:32 am

Avalanche danger is MODERATE near and above treeline. MODERATE means natural avalanches are unlikely and human triggered avalanches are possible. Unlikely does not mean impossible so evaluate the snowpack when traveling on or near slopes greater than 35 degrees. Avalanche danger below treeline is LOW.

Click here to see the full advisory for
April 8, 2017 at 6:56 am

CONSIDERABLE avalanche danger exists above treeline and near treeline. Wind slab avalanches are the primary concern.  Natural avalanches are possible and human triggered avalanches are likely on wind loaded slopes 35 degrees and steeper. The avalanche danger is MODERATE below treeline. A storm slab avalanche problem is an additional concern today as the snowpack adjusts to the weight of the recent snow.

Pages