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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|Chugach State Park|Hatcher Pass|Outside of Advisory Area| Photos | Date | Location | Observer | Avalanche? | General Observations |
|---|---|---|---|---|---|
| 1237334400March 18, 2009 12:00 | Outside of Advisory Area - Twin Peaks | We saw this natural avalanche on Wednesday 3/18/09. The crown face still looks clean enough that I'm guessing it ripped out sometime Tuesday 3/17/09. I'm also guessing that this failed on the "gl … | |||
| 1237161600March 16, 2009 12:00 | Outside of Advisory Area - Tincan NW Aspect | This 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 12:00 | Outside of Advisory Area - Headwaters of Lyon Creek | Recent cornice break on a west aspect at approx. 3500-3800 feet elevation. | |||
| 1237075200March 15, 2009 12:00 | Outside of Advisory Area - Center Ridge | This 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 12:00 | Outside of Advisory Area - Southern Flank Pastoral Peak | Several 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 12:00 | Outside 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 12:00 | Outside of Advisory Area - Main Bowl | The 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 12:00 | Outside of Advisory Area - Pete's South | This 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 12:00 | Turnagain - Pete's South | This 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 12:00 | Outside of Advisory Area - Tincan NW Aspect | This 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 12:00 | Outside of Advisory Area - Sunburst W Aspect | ||||
| 1236384000March 7, 2009 12:00 | Outside of Advisory Area - Sunburst | A 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 12:00 | Outside of Advisory Area - Sunnyside E Aspect | This 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 12:00 | Outside of Advisory Area - Portage Valley SW Aspect | This 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 12:00 | Outside of Advisory Area - Penguin Ridge NE Aspect | Strong 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 12:00 | Outside of Advisory Area - Sunburst | The 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 12:00 | Outside of Advisory Area - Eddy's | The 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 12:00 | Outside of Advisory Area - Sunnyside East Aspect | This 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 … | |||
| 1235952000March 2, 2009 12:00 | Outside of Advisory Area - Tincan North Aspect | This 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 … | |||
| 1235865600March 1, 2009 12:00 | Turnagain - Tincan NW Aspect | ||||
| 1235865600March 1, 2009 12:00 | Turnagain - Pete's North (W Aspect) | ||||
| 1235865600March 1, 2009 12:00 | Outside of Advisory Area - Center Ridge Weather Station | February 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 12:00 | Turnagain - Pete's North | ||||
| 1235779200February 28, 2009 12:00 | Outside of Advisory Area - Sunburst SW Aspect | Lots 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 12:00 | Outside of Advisory Area - Sunburst |
