Home         Current Avalanche Conditions         Local Observations         Incidents         Links        Contact

Local Observations

Need to look up a definition? See observation reporting standards here.

DateNameLocationNew SnowWindsSky/CloudsLayersRecent Avalanche ActivityObservations/Assessments
17-DEC-2014JeffNadahini; Pass18" - 24"WeakPartly sunny with cloudsDug a quick hand pit at ~4,000ft on a NE aspect. Found about two feet of semi-consolidated storm snow on top of a 3-4" pencil hard crust, with ~6-10" of facets mixed with rounds to the ground. A lot of serious whumping right in the flats from the car. Jumped on mini-cornices, with results and even delayed propagation. Group remotely triggered one of these cornices which ran to the ground.Shallow, scary, deep slab! A scenerio on more exposed terrain may be multiple riders hitting the same slope before propogating a significant slide, especially if the trigger is heavier, like a snowmachine. Best case scenerio is we get more snow to pummel those weak layers during another avy cycle!!

DateNameLocationNew SnowWindsSky/CloudsLayersRecent Avalanche ActivityObservations/Assessments
04-DEC-2014g-rampass0-15weakhigh overcastGenerally hard wind packed snow on all aspects and elevations. Low density windblown accumulation in gullies and protected areas from a few inches to a foot and a half make for a nice skiable surface.widespread small windslabs only at highway elevation on cross loaded gullies failed on surface hoar which was seen in the valley bottom previous to storm. No natural avalanches seen at higher elevations but wind loaded gullies with 15+ inches of low density snow over variable hard surfaces (windboard/sun crust(south)) had stiff pockets with potential for windslab avalanches with human trigger. Was able to trigger small stiff windslab over slippery hard layer in protected steep gully wall.should be interesting to see what happens after this next storm. Pretty classic shallow continental snow pack setting up in the pass. A couple layers to keep an eye on, namely recent pockets of low density snow overlying hard layers. Surface hoar not observed much above valley bottoms during previous outings, consistent with small collapses down low. PS. I'm gonna win one of those hoodies.

DateNameLocationNew SnowWindsSky/CloudsLayersRecent Avalanche ActivityObservations/Assessments
March 14th -16thErik StevensTakhin Ridge~6"light, variablemostly cloudyBelow 3500 feet: Top meter of snow consisted of dense soft slab with two discernable interfaces within it, one at 15cm down, another at 60cm down. Ice crust 1m down with 3cm of small-grained facets atop it. No failures on compression or extended column tests. The 1m deep layer did fail with shovel shearing, the failure plane was rated a Q3 shear.Only two small pockets of deep slab (both R1D2), both of which were likely sympathetic step-downs from lots of debris coming down over them. They were located in the middle paths of large avalanche chutes, estimated angle around 35 degrees. N aspects.Snow on some slopes was very stable with hardly any sluffing even on steep slopes.

Disclaimer: Use the data on this website at your own discretion as part of a thorough evaluation of the avalanche hazard in the field. Remember that conditions vary greatly from place to place and hour to hour, so evaluate the snow you find locally, and compare it to what you read on this website. We are not responsible for how you use the information contained on this site, and assume no liability for its use. Remember, information is no substitute for experience. Educate yourself in avalanche safety. The information on this website is not sufficient for completely safe backcountry decision making. Use at your own risk.