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Observations

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Skiing, snowboarding, snowmachining, hiking, walking, and all other methods of travel or recreation on snow are dangerous and a potential hazard to personal safety. Each person who ventures onto snow is responsible for his or her own safety. Many snow travelers find that education, information, and experience can increase their safety when they are on snow. The public observations reported on this site may appear to offer information about the safety of traveling or recreating on snow, but it is critical to remember that such observations are not evaluated or edited for accuracy and represent the subjective experience of the author.

Individuals may have widely differing perceptions, for a given location, date, and time, of the safety of traveling or recreating on snow, of avalanche hazards, and of skiing or snowboarding conditions. The hazards and conditions reported in an observation can change rapidly. In addition, individuals can differ greatly in both their perception of objective hazards and their acceptance of the risk to personal safety of these hazards.

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PhotosDateLocationAvalanche?General Observations
1235088000February 20, 2009 12:00Other Regions - AlyeskaAlyeska Ski Patrol confirmed the weak layer from Tuesday's (2/17/09) artillery-triggered avalanches on the outer area of the Alyeska's North Face called the "Money's. The facets on top of the Janua …
1235088000February 20, 2009 12:00Other Regions - Skookum ValleyThis natural avalanche probably occured on Sunday or Monday 2/15 or 2/16. We just saw this one today 2/20. It's at the right elevation for the rain crust/facet weak layer. Be extra careful at th …
1235001600February 19, 2009 12:00Other Regions - Main BowlCompare this pit to the pit from 2/10/2009. My main concern with this pit are the facets on top of the rain crust. If Turnagain Pass ever gets a load like Girdwood did last weekend, then this wil …
1234915200February 18, 2009 12:00Other Regions - Upper Girdwood ValleyCPG intentionaly ski cut this avalanche at about 4500 feet on a WSW aspect on A-1 glacier. They found some sensitive slabs failing under their skis when they increased their slope angles above 30 …
1234915200February 18, 2009 12:00Other Regions - TincanThis skier-triggered avalanche happened sometime between 4pm yesterday and 1:30 pm today (2/18/09). It is on a western aspect at about 2800 feet. A similar elevation band as the natural avalanche …
1234915200February 18, 2009 12:00Other Regions - Peterson CreekThese natural avalanches at about 1800 feet on steep terrain probably avalanched during Sunday night or Monday morning.
1234915200February 18, 2009 12:00Other Regions - Alyeska North FaceThe "Moneys" is an outer area on the North Face of Alyeska. This picture shows how artillery ripped out avalanches across the entire face of this slope.
1234828800February 17, 2009 12:00Other Regions - WolverineHere is another clue that the rain crust at lower elevations is a dangerous weak layer. That rain crust extends from sea-level to about 3000 feet. We have been finding facets above and below this …
1234828800February 17, 2009 12:00Other Regions - Eddy'sThis natural avalanche on the WSW aspect of Eddies probably ripped out on Monday 2/16/2009. Natural avalanches can be indicators that the snowpack is losing its tolerance for extra weight.
1234828800February 17, 2009 12:00Other Regions - TincanThis natural avalanche on the north side of Tincan near CFR probably occured on Monday 2/16/2009. It not very big, but we have not seen natural avalanches in the upside down surface snow until thi …
1234828800February 17, 2009 12:00Other Regions - Byron Glacier ValleyThis is a poor quality photo, but its worth showing that deep crown face we saw out in Portage Valley. I'm guessing that the crown face is at least 15 feet deep. This avalanche probably ripped ou …
1234742400February 16, 2009 12:00Other Regions - Silvertip CreekThis slab avalanche was triggered remotely by the skier in the photo. It was 12-16 inches deep, ran 150-200 feet around the next ridge to the left.
1234569600February 14, 2009 12:00Other Regions - Sunburst SW AspectThis pit was located on a SW aspect at 2300 feet not far from the skintrack. The snowpack was fairly shallow at this location...only 3.5 feet to the ground. We got moderate Q2 and Q3 shears below …
1234224000February 10, 2009 12:00Other Regions - Main BowlThere is a bad temperature gradient above the top crust. We saw rounds turning into facets in the snow above that crust, and that is also where the stability tests showed the most action. Crusts …
1234137600February 9, 2009 12:00Other Regions - Tincan SW aspect240 cm to ground. Pit located at 3170 feet on a SW aspect. Moderate to hard Q2 shears on pineapple express layer 1.5 feet down. No propagations during extended column test.
1234137600February 9, 2009 12:00Other Regions - Pyramid
1234051200February 8, 2009 12:00Other Regions - Pete's North SW AspectSkier sluff triggered a 4-6 inch thick wind slab on a cross- loaded rib on the SW face of Pete's North. The slab was 30-40 feet wide and ran 500 feet over a rocky convexity.
1234051200February 8, 2009 12:00Turnagain - Pete's North SW AspectAnother photo of the Pete's North slide taken on 2/10/2009.
1233964800February 7, 2009 12:00Other Regions - Cornbiscuit South AspectI took this photo from Lipps looking over to the south face of Cornbiscuit. You can see a shallow skier triggered soft slab to the right of the gully under some rocks. The debris stopped before i …
1233964800February 7, 2009 12:00Other Regions - Lipps West AspectTotal snowpack depth at this site was 6.5 ft., however I only dug down 4 feet. Pit located on a west aspect at 3280 feet just above the highest skier triggered slide from the day before. Found a …
1233964800February 7, 2009 12:00Turnagain - Cornbiscuit South AspectThird photo of Cornbiscuit slide.
1233878400February 6, 2009 12:00Other Regions - Sunnyside East AspectA skier easily triggered this wind pillow on a 40 degree slope at 1500 feet elevation. It failed within the wind-deposited layers.
1233878400February 6, 2009 12:00Other Regions - LippsThese skier triggered soft slabs pulled out additional surface slabs as the debris ran to the flats below. The bed surface was the January monsoon layer (hard dense slab up high transitioning to a …
1233619200February 3, 2009 12:00Other Regions - Tincan Proper South aspectSkier triggered wind slab on South aspect of Tincan Proper, 3900 ft. Skier skied off the slab. This 12" deep wind slab ran the whole length of the slope sending debris onto the lower valley flats …
1233446400February 1, 2009 12:00Turnagain - Tincan South AspectShooting cracks high on Tincan ridge are an indication that the surface snow is unstable. Moderate to strong winds a few days earlier blew the new low density snow into 2-12" thick wind slab. Most …
Showing 3451 - 3475 of 3540 items
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