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 Media Observation made by
11/27/2022 - 11:00

Snowpack Observation
Mt. Judah

Donner Summit Area
Coverage on the lower half of Mt. Judah was poor and the snow surfaces were highly variable. More rocks and other obstacles protruding through the snowpack. Some areas at mid elevations where wind-blown snow had collected had better covereage. The E face of Judah had been scoured and still has lots of exposed rocks. The snow continues to weaken, but still is not showing signs of instability since there is nothing on top of the weak snow. Forecaster
11/27/2022 - 10:30

Snowpack Observation
Crater Lake

Carson Pass Area
Professional Observer
11/26/2022 - 14:00

Snowpack Observation
Tamarack Peak

Mount Rose Area
Public
11/26/2022 - 13:34

Snowpack Observation
Elephants Back

Carson Pass Area
Trace amount of graupel on surface. Scoured ridge of Elephants Back. A look down at Red Lake and the service road. Thinning snow on Elephants Hump. No cornice build on Elephants Back. Isolated areas of breakable wind slabs. Professional Observer
11/26/2022 - 12:00

Snowpack Observation
Tamarack Peak

Mount Rose Area
Recent winds have scoured snow surfaces in near and above treeline areas. Thin snow coverage throughout this area. Faceted weak snow developing in all shaded northerly terrain. Forecaster
11/26/2022 - 11:00

Snowpack Observation
Tamarack Peak

Mount Rose Area
moist snow surfaces on E aspect sugary faceted surface on N aspect Public
11/25/2022 - 12:00

Snowpack Observation
Rubicon Peak

West Shore Area
Lots of rocks existed at or just below the snow surface, especially below 8500 ft. Shaloow snow with some weak snow but no slab. ECTN 30 snowpit test results. Forecaster
11/24/2022 - 15:07

Snowpack Observation
North side Donner Peak

Donner Summit Area
Trap door skinning Public
11/23/2022 - 13:11

Snowpack Observation
Red Lake Peak

Carson Pass Area
Snow depth @ 7400' at trailhead on 11/10. Snow depth @ 7400'  at trailhead on 11/23. Large surface hoar on shaded slopes @ 7600'. Minimal snow on solar aspects of Stevens peak. 30cm of boot pen. Pit profile on N aspect @ 8800'. A mix of larger rounded facets and clustered grains beneath rain crust. Hasty pit on wind slab. Professional Observer
11/23/2022 - 12:00

Snowpack Observation
Andesite Peak

Donner Summit Area
The windward side of the ridge was fully scoured back to dirt by the east winds. These winds have even blown some dust onto the snow on the leeward side of the ridge. Wind scoured surfaces and lots of exposed rocks existed on the open E-facing slopes The summit of Andesite also has been hammered by SW and E-NE winds. Looking at coverage on Castle and Basin Peak. Forecaster
11/22/2022 - 13:30

Snowpack Observation
Red Lake

Carson Pass Area
Public
11/22/2022 - 11:30

Snowpack Observation
Chickadee Ridge

Mount Rose Area
Sun crust with soft snow below it on sunny southerly facing aspects. The soft faceted snow below the sun crust on southerly aspects still would clump together when squeezed. Coverage is thin in this area even on the shady N facing aspects Snowpit on a shady slope with facets but no slab. ECTX results. Forecaster
11/21/2022 - 12:00

Snowpack Observation
Silver Peak

Cabin Creek, Deep Creek, or Pole Creek Area
Surface hoar was widespread in the morning. The current stability allowed us to dig a snowpit in an avalanche path. The snow was shallow and getting weaker. ECTN29 test result on a 36 degree N-facing slope Wind scouring along the ridge. Previously wind loaded area where the snow was quite firm. Now, the snow surface is softer and more punchy. Forecaster
11/20/2022 - 10:30

Snowpack Observation
Winnemucca Lake

Carson Pass Area
NE facing ridge below Round Top. Bony, eroded snow. Public
11/18/2022 - 10:55

Snowpack Observation
Lincoln Ridge

Yuba Pass Area
Notable large surface hoar in open areas below treeline. Notable large surface hoar in open areas below treeline. Cornices along Lincoln Ridge are still large enough to act as avalanche start zones despite recent NE wind scouring. Forecaster

Pages