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
February 3, 2018 at 6:08 am

The avalanche danger is LOW for all elevations and aspects throughout the forecast area. NORMAL CAUTION is advised. Always practice safe travel protocols. Watch for unstable snow on isolated terrain features and falling rime ice off the upper mountain.

Click here to see the full advisory for
February 2, 2018 at 6:19 am

The avalanche danger is LOW for all elevations and aspects throughout the forecast area. NORMAL CAUTION is advised. Always practice safe travel protocols and watch for unstable snow on isolated terrain features and falling rime ice above treeline.

Click here to see the full advisory for
February 1, 2018 at 6:35 am

The avalanche danger is LOW for all elevations and aspects throughout the forecast area. Practice safe travel protocols and watch for unstable snow on isolated terrain features. Watch for falling rime ice above treeline.

Click here to see the full advisory for
January 31, 2018 at 4:03 am

Avalanche danger is LOW. Wind slabs may be found in isolated areas above 9000 ft on SE-E-NE slopes steeper than 35 degrees. Watch out for falling rime ice above treeline.

Click here to see the full advisory for
January 30, 2018 at 6:44 am

Avalanches are unlikely, and the danger is LOW. Small wind slabs may still exist in isolated areas above 9,000 ft on SE-E-NE aspects. Falling rime ice is a significant concern above treeline on Mount Shasta.

Click here to see the full advisory for
January 29, 2018 at 6:47 am

The avalanche danger is MODERATE above treeline and LOW near and below treeline. Wind slabs exist on SE-E-NE aspects above 9,000 ft where human triggering remains possible. With continued warm temperatures, falling rime ice is a concern above treeline on Mount Shasta. 

Click here to see the full advisory for
January 28, 2018 at 7:00 am

The avalanche danger is MODERATE near and above treeline. In these elevation bands, fresh wind slabs exist on S-SE-E-NE-N aspects. Human triggered avalanches are possible, while natural avalanches are unlikely. Warming temperatures today may weaken snow surfaces. Rime icefall will also be a significant concern. Below treeline, the avalanche danger is LOW.

Click here to see the full advisory for
January 27, 2018 at 6:24 am

The avalanche danger is LOW below treeline and MODERATE near and above treeline. The wind slab avalanche problem remains a concern due to strong winds expected near and above treeline on Mount Shasta. Human triggered avalanches are possible in steep, freshly wind loaded terrain on NE-E-SE facing aspects. Rime ice is plastered to exposed rocks. Wear a helmet.

 

 

 

Click here to see the full advisory for
January 26, 2018 at 6:40 am

Below treeline, the avalanche danger is LOW. Near and above treeline, expect MODERATE avalanche danger for existing wind slab avalanches. Natural activity is unlikely, human triggered slabs are possbile in steep terrain. Fresh, low density snow and increasing west/southwest winds over the next 24 hours will continue to add snow to leeward SE-E-NE aspects. A stubborn wind slab today could be touchy tomorrow.

 

 

Click here to see the full advisory for
January 25, 2018 at 6:41 am

Multiple avalanche problems give way to CONSIDERABLE avalanche danger today, near and above treeline, all aspects. Below treeline, expect MODERATE avalanche danger. Wind slab, Loose-Dry and Storm Slab instabilities are possible, both natural and human triggered. Careful snowpack evaluation, cautious route finding and conservative decision-making are essential today.

 

Click here to see the full advisory for
January 24, 2018 at 7:00 am

The avalanche danger will rise to CONSIDERABLE above treeline by this afternoon. Fresh wind slabs will form near and above treeline on SE-E-NE-N-NW aspects. Natural avalanches are possible and human triggered avalanche are likely. Heightened avalanche danger is expected through the end of the week as an active weather pattern continues.

Click here to see the full advisory for
January 23, 2018 at 6:53 am

The avalanche danger is LOW at all elevations. Shallow wind slabs still exist on S-SE-E-NE-N aspects above 9,000 ft on Mount Shasta. Expect increasing avalanche danger tomorrow through the end of the week as a significant winter storm impacts the area.

Click here to see the full advisory for
January 22, 2018 at 6:52 am

MODERATE avalanche danger exists near and above treeline. Fresh wind slabs are a concern on S-SE-E-NE-N aspects above 8,000 ft. Human triggered avalanches are possible while natural avalanches are unlikely. The avalanche danger is LOW below treeline. 

Click here to see the full advisory for
January 21, 2018 at 7:01 am

MODERATE avalanche danger exists near and above treeline. Watch for fresh wind slabs above 8,000ft on S-SE-E-NE-N aspects. A winter storm will begin this morning and avalanche danger is expected to rise this afternoon and by tomorrow. Monitor changing conditions throughout the day.

 

 

Click here to see the full advisory for
January 20, 2018 at 6:03 am

MODERATE avalanche danger exists for the wind slab problem on Mount Shasta today. Human triggered wind slabs will be stubborn to trigger, but are possible. Expect wind slabs specifically on N-NE-E-SE facing slopes above 9,000 feet. For all other aspects and elevations, the avalanche danger is LOW. Firm, icy surfaces exist on windward, exposed ridgelines and a slide for life is possible without immediate self-arrest. Watch for falling rime ice.

 

 

Click here to see the full advisory for
January 19, 2018 at 6:44 am

The wind slab problem will continue due to strong westerly winds and new snow over the past 24 hours. Near and above treeline, MODERATE avalanche danger exists on leeward, wind loaded N-NE-E-SE facing slopes. A human triggered wind slab is possible today, especially on unsupported slopes steeper than 35 degrees. Below treeline, the avalanche danger is LOW. 

Icy surfaces still exist on windward, exposed ridgelines and a slide for life is possible without immediate self-arrest. 

 

 

Click here to see the full advisory for
January 18, 2018 at 6:38 am

A winter storm will impact the area over the next 36 hours. The avalanche danger is LOW this morning, but will rise to MODERATE this afternoon as new snow and wind create fresh wind slabs near and above treeline on Mount Shasta. Pay attention to changing conditions today. Below treeline, LOW avalanche danger will continue.

 

Click here to see the full advisory for
January 17, 2018 at 6:16 am

Avalanche danger is LOW. Isolated wind slabs may be encountered on NE-E-SE aspects above 9,000 ft. Monitor changing conditions as a new storm moves in after 4 p.m.

Click here to see the full advisory for
January 16, 2018 at 7:00 am

The avalanche danger is LOW. Shallow wind slabs may have recently formed on N-NE-E-SE-S aspects above 9,000ft on Mount Shasta. Expect a break today and tomorrow before the active weather pattern returns Thursday.

Click here to see the full advisory for
January 15, 2018 at 7:00 am

LOW avalanche danger and generally safe avalanche conditions exist. Shallow snowpack hazards are still problematic. A series of storms beginning tonight will bring changing conditions throughout the week.

Pages