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Observations

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|Anchorage Front Range|Hatcher Pass|Outside of Advisory Area
PhotosDateLocationAvalanche?General Observations
1232496000January 21, 2009 12:00Outside of Advisory Area - Magnum, T. PassMagnum Mt. class 3 avalanche, released at 3000 ft on west aspect on Jan 16, 2009.
1232496000January 21, 2009 12:00Outside of Advisory Area - MagnumBig pile of debris from this avalanche that occured between January 14-16.
1232496000January 21, 2009 12:00Outside of Advisory Area - MagnumThis is a crown profile of a large class 3/small class 4 natural avalanche that occurred on Magnum last week. The avalanche occured sometime between January 14th and January 16th, 2009. The slide p …
1232409600January 20, 2009 12:00Outside of Advisory Area - Main Bowl/Seattle RidgeJon and I dug this pit at 3000 feet on an ENE aspect. This is the third time I have dug in this spot (11/21/08 and 12/16/08 were the previous days) Amazingly we found the October surface hoar abou …
1232409600January 20, 2009 12:00Outside of Advisory Area - Seattle RidgeRepeat Offender is the avalanche path above the snowmachine up- track that killed 6 people in 1999. We dug a pit at about 2200 feet. We found the January facets buried about 4 feet deep. This is …
1232236800January 18, 2009 12:00Turnagain - Tincan West AspectThese small class 1 avalanches were triggered by the first skier down the slope. They happened on a windloaded west aspect at 2500 feet near the skin track. These are excellent test slopes to jum …
1232150400January 17, 2009 12:00Outside of Advisory Area - Sunburst North AspectYou can barely see the debris piles at the bottom of Elevator Shaft and the chute to the looker's right. These natural avalanches possibly happened on Wed. 1/14.
1232150400January 17, 2009 12:00Outside of Advisory Area - Tincan SW AspectThis class 2 avalanche happened at 2500' on a SW aspect sometime during the Jan. 13-16 storm.
1232150400January 17, 2009 12:00Outside of Advisory Area - Tincan West AspectThis small class 1 avalanche happened at 2500' on a wind-loaded west aspect sometime during the Jan 13-16 storm.
1232150400January 17, 2009 12:00Outside of Advisory Area - Magnum West AspectHere is another photo of the natural avalanche on Magnum that most likely occurred at the end of the storm on Friday 1/16. The debris came down into the alders.
1232150400January 17, 2009 12:00Outside of Advisory Area - Magnum Western AspectThere are multiple crown faces that are wind hammered. It is difficult to say exactly what happened here; but, it sure looks like the entire upper bowl (Catcher's Mit) of the western aspect avalanc …
1231977600January 15, 2009 12:00Outside of Advisory Area - Center RidgeWe found about 18-20 inches of new snow on top of the facets near the Center Ridge Weather station. We felt several collapses. Hand pits all failed on the back cut. Plus, we remotely triggered t …
1231977600January 15, 2009 12:00Outside of Advisory Area - Center Ridge Weather StationBen Faucher (the CNFAIC intern) helped hike new batteries up to the Center Ridge Weather Station on 01-15-2009. NRCS is working on getting the station back on line soon.
1231804800January 13, 2009 12:00Outside of Advisory Area - TincanThere are 5-6 inches of facets (square symbol in pit graph) under 4-6 inches of new snow as of 01/13/09. These facets have been failing and causing very small inconsequential avalanches over the p …
1231804800January 13, 2009 12:00Outside of Advisory Area - TincanI dug this pit at 2500 feet on a west aspect. Once we got above treeline where the wind was actively loading leeward aspects, we were able to trigger some small surface soft slabs 3-6 inches thick …
1231545600January 10, 2009 12:00Turnagain - Pete's NorthThe notes from this pit mention how the surface facets where easy to sluff out with skis. That is not a good sign that all those facets are so easy to trigger even when there is not a new load of …
1231372800January 8, 2009 12:00Outside of Advisory Area - Pyramid Mtn. approachThis is a photo of a small skier-triggered sluff avalanche on an east aspect near the powerline at 1300 feet elevation.
1230768000January 1, 2009 12:00Outside of Advisory Area - Glacier Ranger District OfficeDescription: December Totals: 2008* 42" Snow*, 3.6" Water* 2007 66" Snow, 5.4" Water 2006 158" Snow, 13.9" Water 2005 43" Snow, 8.7" Water *Center Ridge weather station recorded no data from 12/21-12 …
1230595200December 30, 2008 12:00Outside of Advisory Area - Main Bowl/Seattle RidgeJust like Bill's pit on Sunburst on saturday 12/27/08, the top 1- 2 feet of this Main Bowl snowpit shows a bad temperature gradient near the surface. I took a close look with my magnifying glass an …
1230336000December 27, 2008 12:00Outside of Advisory Area - SunburstCheck out how the red temperature line shifts way to the left in the top ~40cm (~1-2 feet) of snow. A drastic snow temperature change like this can create facets and make a dangerous weak layer af …
1230336000December 27, 2008 12:00Outside of Advisory Area - Lipps SW AspectHere is a current photo of the large glide crack on the SW face of Lipps. Half of it released 2 weeks ago, with the other half slowly creeping downhill.
1229990400December 23, 2008 12:00Outside of Advisory Area - Stock Run Bowl NW AspectI was unable to find the buried surface hoar or the crust above the October facets that we have seen in other pits. Compression tests showed good stability. My main concern was the failure on top …
1229990400December 23, 2008 12:00Outside of Advisory Area - Stock Run Bowl/Seattle RidgeTotal snowpack depth at this site was 4.3 feet. I easily found the buried surface hoar mixed with rounding-out facets 3.5 feet down on top of a 4 inch thick crust. This, in turn, was sitting on a …
1229558400December 18, 2008 12:00Outside of Advisory Area - Cornbiscuit SE AspectThis pit was about 4 feet deep on top of rocks and tundra. I did not get any failures on the October facets near the ground until I really hammered on my shovel. The weak layer of greatest concer …
1229558400December 18, 2008 12:00Outside of Advisory Area - Magnum Southwest AspectGlide cracks are very easy to see, but difficult to predict. They don't always avalanche. When they do, they fail all the way to the ground. Sometimes they avalanche when its storming, sometimes …
Showing 2551 - 2575 of 2600 items
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