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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
1237161600March 16, 2009 12:00Outside of Advisory Area - Tincan NW AspectThis is the fourth week I have dug in this spot as part of Ben's snow study plot. My compression test scores on the layer of facets above the January rain crust, now buried 63 cm deep (2 ft), incre …
1237075200March 15, 2009 12:00Outside of Advisory Area - Headwaters of Lyon CreekRecent cornice break on a west aspect at approx. 3500-3800 feet elevation.
1237075200March 15, 2009 12:00Outside of Advisory Area - Center RidgeThis is a cross-section of snow from 2,000 feet on Center Ridge where the snow collapsed locally. Joe's finger is pointing to the top of the rain crust. The snow collapsed on the facets above the r …
1236988800March 14, 2009 12:00Outside of Advisory Area - Southern Flank Pastoral PeakSeveral of our observers dug this pit at 3800 feet on a NW aspect at the head of Bertha Creek drainage on a southern flank of Pastoral Peak. Although they got collapsing at the lower elevations du …
1236902400March 13, 2009 12:00Outside of Advisory Area - Pete's North (SW Aspect)Ben and I dug this pit at 2200 feet on a SW aspect. We found the January rain crust buried 1.5 feet deep. Our compression test scores on the facets above the crust were the lowest ones yet, a sig …
1236643200March 10, 2009 12:00Outside of Advisory Area - Main BowlThe facets have developed a lot more in this pit compared to the last one at this location on 2/19/2009. The temperature gradient changed since that last pit. We've been watching this bad tempera …
1236556800March 9, 2009 12:00Outside of Advisory Area - Pete's SouthThis snowpit goes with the photo from Pete's South. The photo shows a crack extended down to the Jaunuary Hurricane rain crust that you can see about 1 foot deep (40 cm) down in this pit profile. …
1236556800March 9, 2009 12:00Turnagain - Pete's SouthThis human-triggered crack on top of the January Hurricane rain crust suggests that this weak layer continues to show signs of instability.
1236556800March 9, 2009 12:00Outside of Advisory Area - Tincan NW AspectThis is the third week I have dug in this spot as part of Ben's snow study plot. My compression test scores are still decreasing on the layer of facets above the January rain crust, still buried 50 …
1236384000March 7, 2009 12:00Outside of Advisory Area - Sunburst W Aspect
1236384000March 7, 2009 12:00Outside of Advisory Area - SunburstA widespread freezing rain crust formed the night of 3/4/2009 on all aspects from sea level to the ridgetops. It was easy to see today in the bright sunshine because it reflected like a mirror. T …
1236384000March 7, 2009 12:00Outside of Advisory Area - Sunnyside E AspectThis small Class 1 slide (2800' E aspect) on the motorized side of Turnagain Pass most likely happened on Friday 3/6 during the wind event. It looks like it might have stepped down to another weak …
1236384000March 7, 2009 12:00Outside of Advisory Area - Portage Valley SW AspectThis slide also occurred on Friday 3/6 during the wind event. It's on a SW aspect at approx. 2000 ft. in Portage Valley across from Moose Flats Day Use Area.
1236384000March 7, 2009 12:00Outside of Advisory Area - Penguin Ridge NE AspectStrong to gale force winds on Friday 3/6 caused these avalanches at approx. 3000 ft. on a NE aspect in the California Creek drainage.
1236211200March 5, 2009 12:00Outside of Advisory Area - SunburstThe Sunburst web camera had a bunch of snow on it when I checked this morning; so, we headed up there to clean it off and get some observations above 3500 feet. Turns out, it must have been frozen …
1236038400March 3, 2009 12:00Outside of Advisory Area - Eddy'sThe rain crust was a lot thicker here than I've seen at other locations. Its still showing signs of instability. The facets on top of the crust are rounding their edges even though the temperatur …
1235952000March 2, 2009 12:00Outside of Advisory Area - Tincan North AspectThis is the second week I have dug in this spot as part of Ben's snow study plot. My compression test scores actually decreased slightly on the layer of facets above the rain crust, now buried 50 …
1235952000March 2, 2009 12:00Outside of Advisory Area - Sunnyside East AspectThis natural avalanche occurred sometime Sunday 3/1 on the slope right across from the motorized parking lot in Turnagain Pass (west side of highway). A combination of shallow windslabs and sluffs …
1235865600March 1, 2009 12:00Turnagain - Pete's North (W Aspect)
1235865600March 1, 2009 12:00Outside of Advisory Area - Center Ridge Weather StationFebruary Snowfall Totals for Center Ridge Wx Station 2009: 23" snow 1.8" water 2008: 86" snow 10.5" water 2007: 4" snow 0.7" water 2006: 66" snow 11.6" water
1235865600March 1, 2009 12:00Turnagain - Pete's North
1235865600March 1, 2009 12:00Turnagain - Tincan NW Aspect
1235779200February 28, 2009 12:00Outside of Advisory Area - Sunburst SW AspectLots of spacial variability in my snowpits today! Easy to hard shears under the rain crust on well-developed 2-3mm facets, all clean Q2 shears. The 2 inch thick windslab near the surface failed d …
1235692800February 27, 2009 12:00Outside of Advisory Area - Sunburst
1235606400February 26, 2009 12:00Outside of Advisory Area - Sunburst Ridge, Turnagain PassMore sastrugi snow!
Showing 2476 - 2500 of 2600 items
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