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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.

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Date the advisory was published: Bottom Line
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February 13, 2018 at 7:00 am

Avalanche danger is LOW for all elevations. Avalanches are unlikely and NORMAL CAUTION is advised. Firm and icy snow surfaces are widespread. Shallow snowpack hazards exist. Icefall continues to be a concern above 10,000 ft on Mount Shasta.

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February 12, 2018 at 6:41 am

Avalanche danger is LOW for all elevations. Avalanches are unlikely and NORMAL CAUTION is advised. Firm and icy snow surfaces are widespread. Shallow snowpack hazards exist. Falling rime ice continues to be a concern above 10,000 ft on Mount Shasta.

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February 11, 2018 at 7:01 am

Avalanche danger is LOW for all elevations. Avalanches are unlikely and NORMAL CAUTION is advised. Shallow snowpack hazards exist. Falling rime ice continues to be a concern above 10,000 ft on Mount Shasta.

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February 10, 2018 at 5:49 am

Avalanche danger is LOW. Avalanches are unlikely and NORMAL CAUTION is advised. Shallow snowpack hazards exist. Beware of falling rime ice above 9500 ft.

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February 9, 2018 at 5:55 am

Avalanche danger is LOW. Avalanches are unlikely and NORMAL CAUTION is advised. Shallow snowpack hazards exist. Beware of falling rime ice above 9500 ft.

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February 8, 2018 at 5:51 am

Avalanche danger is LOW. Avalanches are unlikely and NORMAL CAUTION is advised. Shallow snowpack hazards exist. Beware of falling rime ice above 9500 ft.

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February 7, 2018 at 5:56 am

Avalanche danger is LOW. Avalanches are unlikely and NORMAL CAUTION is advised. Shallow snowpack hazards exist. Beware of falling rime ice above 9500 ft.

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February 6, 2018 at 6:30 am

The avalanche danger is LOW for all elevations and aspects throughout the advisory area. Avalanches are unlikely and NORMAL CAUTION is advised. Shallow snowpack hazards exist. Watch for falling rime ice in upper elevation terrain on Mount Shasta.

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February 5, 2018 at 6:40 am

The avalanche danger is LOW for all elevations and aspects throughout the forecast area. Avalanches are unlikely and NORMAL CAUTION is advised. Shallow snowpack hazards exist. Watch for falling rime ice in upper elevation terrain on Mount Shasta.

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February 4, 2018 at 6:11 am

The avalanche danger is LOW for all elevations and aspects throughout the forecast area. Avalanches are unlikely and NORMAL CAUTION is advised. Be especially careful of falling rime ice in upper elevation terrain on Mount Shasta.

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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.

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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.

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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.

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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.

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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.

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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. 

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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.

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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.

 

 

 

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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.

 

 

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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.

 

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