It is the personal responsibility of each user of CNFAIC to decide whether or how to use any information found here.

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.

Submit an Observation All Regions|Turnagain|Girdwood|Portage/Placer|Summit|Seward|Chugach State Park|Hatcher Pass|Other Regions
PhotosDateLocationAvalanche?General Observations
1298073600February 19, 2011 12:00Turnagain - TincanNew snow sloughing on the south side of the Tincan ridge.
1298073600February 19, 2011 12:00Other Regions - Seattle RidgeNaturally triggered wind slab that ran almost full length of the gully. Photo taken while the slide was in motion!
1298073600February 19, 2011 12:00Other Regions - SilvertipNaturally triggered wind slab on the east face of Silvertip.
1298073600February 19, 2011 12:00Other Regions - MarmotThis photo was taken in the Hatcher Pass area and shows what looks like a slide (likely a wind slab) near the ridge that pulled out adjacent soft slabs on the steep side wall terrain of gully while it …
1298073600February 19, 2011 12:00Other Regions - Penguin RidgeNatural wind slab on the Girdwood side of Penguin Ridge.
1298073600February 19, 2011 12:00Other Regions - Turnagain PassGreat photo showing snow being transported by strong winds along the peaks and ridges on Turnagain Pass.
1297728000February 15, 2011 12:00Other Regions - RaggedtopThis avalanche was believed to be initiated by a fresh wind slab that stepped down and pulled out sections of a deeper slab further down the slope. It washed over and caught one person about 200' down …
1297468800February 12, 2011 12:00Turnagain - SunburstA skier initiated (on left) and natural (of right) loose snow sluffs in the new 5-8" of low density storm snow on Sunbust.
1297468800February 12, 2011 12:00Other Regions - LippsA skier was able to ski cut and trigger this soft slab avalanche on the west side of Lipps. The ski cut was placed on a steep roll over near the top and involved only the most recent storm snow (possi …
1297468800February 12, 2011 12:00Turnagain - TincanThis is a soft wind slab triggered by a skier/snowboarder on the lower section of the Tincan ridge, southwest facing. Estimated at 12" at deepest point and possibly 100' wide running around 200'.
1297382400February 11, 2011 12:00Other Regions - S. Fork Eagle River, N. BowlSkied North Bowl in whiteout conditions this afternoon. Winds were light everywhere but on the ridge where gusts were moderate. Dug a test pit at ~3800 on a 30 degree slope to the skiers left of the …
1297123200February 8, 2011 12:00Turnagain - TincanJumping on this test slope resulted in a tiny slab avalanche. Shooting cracks broke down to a buried layer of 1mm surface hoar from our recent clear weather. Continued strong winds have increased t …
1297036800February 7, 2011 12:00Other Regions - Magnum South FaceRider triggered avalanche on 2-7-11. Triggered in steep rocky terrain around shallow points.
1297036800February 7, 2011 12:00Other Regions - North End of Seattle RidgeThis glide avalanche failed sometime on February 7th between 11:00am and 4:00pm. Glide cracks could start emerging as a hazard again; if so, avoid travelling beneath any open cracks.
1297036800February 7, 2011 12:00Other Regions - Magnum - South FaceA snowboarder triggered this deep slab avalanche on a run down the South Face of Magnum. The avalanche was reportedly triggered near exposed rocks, where buried weak snow is closer to the surface. …
1296950400February 6, 2011 12:00Other Regions - Seattle RidgeTwo snowboarders triggered this slide on Repeat Offender on the east facing side of Seattle Ridge. Estimated at 100' wide and 1-3' deep. It broke above them while they were part way down the slope, th …
1296864000February 5, 2011 12:00Other Regions - Eagle River - North Bowl, HighRemote skier triggered avalanche from Eagle River in North Bowl. This was around 1.5� deep and 100� wide, remotely triggered on low angle terrain from around 100m away.
1296777600February 4, 2011 12:00Other Regions - Seattle ridge, JuniorsSeattle ridge webcam looking at Junior's Bowl, southwest face. Avalanche occurred between 130 and 230 in the afternoon.
1296777600February 4, 2011 12:00Other Regions - Summit Lake, ColoradoThese avalanches and another outside the photo happened during or immediately after the storm around 2-3-11. Notice the distribution of the failure which indicates sympathetic or upslope propagation. …
1296777600February 4, 2011 12:00Other Regions - Between lynx and silvertipThis very large natural avalanche happened on 2-3 or 2-4. Photo taken from the Johnson pass trailhead parking. Width is estimated at 2000+ feet. Likely old persistent weak layers. Propagation is e …
1296777600February 4, 2011 12:00Other Regions - West side of Twin Tip, SummitThis large natural occurred during or after the storm around 2-3-11. Notice the propagation on the lower tier of the avalanche including upslope on the left side. The upper bowl crown wraps around t …
1296777600February 4, 2011 12:00Other Regions - Silvertip, twintipThese mid slope avalanches occurred on 2-3 or 2-4. Total width extends from nearly the far left to far right of picture.
1296691200February 3, 2011 12:00Other Regions - Deep Slab Anatomy
1296604800February 2, 2011 12:00Other Regions - January Weather Chart
1296345600January 30, 2011 12:00Other Regions - Butch Mountain, Summit LakeDescription: This avalanche was triggered 1/29 by a group of 4 skiers. One was fully buried, two were partially buried, and one was not buried. The bed surface shown at the crown is snow which was bur …
Showing 3376 - 3400 of 3738 items
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