These observations document past conditions at a small and variable scale. They are not to be confused with an avalanche forecast. They come from a variety of sources. We can only vouch for the quality of those produced by the SAC forecasters and professional observers.
Date and time of observation or avalanche occurrence Location Region Observation Type Photos Snowpack, Avalanche, Weather Videos Snowpit videos (tests, etc) Observation made by
02/25/2022 - 11:19 Tamarack Peak Snowpack Observation Soft snow with wind texture BT Wind transport onto SE aspect Reverse tracks and variable hardness of snow surfaces Small surface hoar in protected areas Public
02/25/2022 - 10:15 Polaris Point Blackwood Canyon or Ward Canyon Area Snowpack Observation F to 4F+ hard slab over 1 cm 1F- mf crust on top of F hard old near surface facets. ECTN-13 on top of facet layer. PST 25/100 SF along the top of the old near surface facet layer. Forecaster
02/24/2022 - 14:00 Andesite Donner Summit Area Snowpack Observation Snow observation demonstration for A1 students Educator
West Wind CollectivehW
02/24/2022 - 13:30 Silver Peak Cabin Creek, Deep Creek, or Pole Creek Area Snowpack Observation Ridgetop skin track refill after about 1 hr. Only a 3 inch thick wind slab that did not extend more than a few feet downhill, but had 30 foot wide propagation. Triggered from a ski cut. Recent storm snow over facets. ECTN-14. bottom of slab 4F+ hard, facets F+ hard with a 1.5 to 2 cm thick 1 F hard crust in between the two. Shaded N aspect at 7,600'. Small roller balls and pinwheels on SE aspect terrain at around 7,800. Forecaster
02/24/2022 - 11:00 Flagpole Echo Summit Area Snowpack Observation Professional Observer
02/24/2022 - 10:00 Mt Houghton Mount Rose Area Snowpack Observation Small cornices starting to form on Relay ridge The thickest consolidated slab we found was about 2" Public
02/23/2022 - 13:15 Hidden Peak West Shore Area Snowpack Observation Small natural cornice collapses along W side of summit ridge. Cornices collapsed on approach with fairly wide propagation given the size of the terrain. Evidence of NE winds scouring and drifting along the ridgetop. Tiny skier triggered storm slab in NE aspect wind protected terrain below treeline. Forecaster
02/23/2022 - 12:21 Trimmer Peak Luther Pass Area (including Job and Freel) Snowpack Observation New wind feature that cracked open with ski kick. Scattered skies looking over Tallac and Jake's. 30cm of new snow on top of Jan. rain crust. @ 8200' Planar result in compression test. Professional Observer
02/23/2022 - 12:00 Elephant's Hump Carson Pass Area Snowpack Observation Professional Observer
02/23/2022 - 11:00 Powderhouse Luther Pass Area (including Job and Freel) Snowpack Observation Educator
Lake Tahoe Community College - Wilderness EducationhL
02/23/2022 - 10:35 Trestle Peak Donner Summit Area Snowpack Observation View of the crest out of Coldstream Canyon. Mid morning. Public
02/22/2022 - 14:00 Hope Valley Carson Pass Area Snowpack Observation Professional Observer
02/22/2022 - 12:00 Tamarack Peak Mount Rose Area Snowpack Observation 43cm of HST on top of old near surface facets. Small cracking on wind loaded test slopes. About a foot of snow near the trailhead with 1.5'+ at the higher elevations. Small cracking in exposed wind loaded terrain. Forecaster
02/21/2022 - 16:01 Castle Peak Little Truckee Summit Areas Avalanche Observation Top of the S face of castle peak, 3” wind slab released immediately on stepping onto the slope. Wind was blowing hard Ski cut lower on castle peak, at tree line. No slab yet N face of castle peak, 3-5” of new snow on 1” crust over softer layer. Public
02/21/2022 - 12:40 Caples Lake Carson Pass Area Snowpack Observation A trace of fresh graupel was on the snow surface. About 5cms of facets under a stout crust on a NE aspect. About 10cms of weak facets under a very thin crust on a N aspect. Looking at the mostly bare S face of Peak 9452 Still very rough surface conditions on exposed SE aspects Professional Observer


Subscribe to Central Sierra Nevada / Lake Tahoe Snowpack, Weather, and Avalanche Observations for California and Nevada from SAC