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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 23, 2013 at 7:03 am

A variety of snow conditions exist today in the forecast area. Overall low with pockets of moderate avalanche danger. We received 4-6 inches of new snow over the week with strong winds from various directions.We received up to an inch in the last 24 hours. While some areas have been scoured down to old snow surface by winds in the past several days, instabilities will be found in isolated wind loaded areas near ridgetops, bowls, rock outcrops, chutes and gullies.

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February 22, 2013 at 6:57 am

A variety of snow conditions exist today in the forecast area. Overall low to moderate avalanche danger prevails. We received 4-6 inches of new snow over the week with strong winds from various directions. While some areas have been scoured down to old snow surface by winds in the past several days, instabilities will be found in isolated wind loaded areas near ridgetops, bowls, rock outcrops, chutes and gullies

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February 17, 2013 at 8:04 am

Overall, avalanches are unlikely today in the forecast area. A variety of conditions will be found out there with most areas trending on the firm side. Wind slabs have bonded well to the widespread crust layer and are not a concern. A thick layer of facets still exists below our thick crust, however we do not have any slabs above this layer from our recent observations. With plentiful sunshine, any southerly aspect should warm nicely and any instability will be limited to roller balls during the warmest portion of the day. Other aspects will remain firm and funky!

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February 17, 2013 at 7:02 am

Overall, avalanches are unlikely today in the forecast area. A variety of conditions will can be found out there with most areas trending on the firm side. Wind slabs have bonded well to the widespread crust layer and are not a concern. A thick layer of facets still exists below our thick crust, however we do not have any slabs above this layer from our observations. With plentiful sunshine, any southerly aspect should warm nicely and any instability will be limited to roller balls during the warmest portion of the day. Other aspects will remain firm and funky!

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February 16, 2013 at 1:34 am

Overall, avalanches are unlikely today in the forecast area. A variety of conditions will can be found out there with most areas trending on the firm side. Wind slabs have bonded well to the widespread crust layer and are not a concern. A thick layer of facets still exists below our thick crust, however we do not have any slabs above this layer from our observations. With plentiful sunshine, any southerly aspect should warm nicely and any instability will be limited to roller balls during the warmest portion of the day. Other aspects from the top 180 degrees of the compass will remain firm and funky!

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