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
02/01/2019 - 10:30
Snowpack Observation 		Jakes
West Shore Area 		Public
01/31/2019 - 13:00
Snowpack Observation 		Stevens Peak
Carson Pass Area 		4mm surface hoar on N aspect terrain showing signs of lasting through the day. Shallow surface facets on NNE aspect terrain, unaffected by previous melt. We were breaking trail for this skin track. Forecaster
01/31/2019 - 12:15
Snowpack Observation 		Jake's Peak
West Shore Area 		Public
01/31/2019 - 11:30
Snowpack Observation 		Castle Peak
Donner Summit Area 		Professional Observer
01/31/2019 - 10:15
Snowpack Observation 		Johnson Canyon
Donner Summit Area 		2 inches of corn on a supportable melt-freeze layer on a W aspect at 1:15 Crack in the snowpack as a cornice pulls away from the ridge. Forecaster
01/30/2019 - 15:00
Snowpack Observation 		Rose Knob
Mount Rose Area 		Public
01/30/2019 - 13:30
Snowpack Observation 		Scotts Lake
Luther Pass Area (including Job and Freel) 		Melting snow surfaces exposed to full sun. View of the S face of Waterhouse Peak Breakable crust present in some areas that receive partial shade Observation wall of the snowprofile highlighting the layer of buried surface hoar Pieces of buried surface hoar on the underside of a slab from a CT test Public
01/30/2019 - 12:00
Snowpack Observation 		Jakes Peak
West Shore Area 		1 to 2 inches of corn on a supportable surface at 11:15 am on a S aspect. 2 to 3 inches of corn snow on a supportable surface at 12:15 on the same S aspect. Cloud cover moved into the area around 1 pm and you can still see sunlight glinting off of exposed crusts in the distance. Smoke cloud with a flat top showing the height of the morning's inversion. Forecaster
01/30/2019 - 12:00
Snowpack Observation 		Angora Peak
Desolation Wilderness Area (including Emerald Bay) 		Professional Observer
01/30/2019 - 11:45
Snowpack Observation 		Rose Knob Peak
Mount Rose Area 		Ascending through 7,900' on open ESE aspect terrain at 10:15 am found 4 cm wet snow on top of 12 cm of 1 F hard melt-freeze crust. Open fracture behind cornice at ~8,900'. Conditions becoming unsupportable to travel on skis in treed SE aspect terrain at ~7,600' at 11:45 am. Forecaster
01/29/2019 - 11:30
Snowpack Observation 		Slide Mountain
Mount Rose Area 		After a period of morning sun the clouds rolled back into the area around 11 am. It looked like periods of sun also occurred in the afternoon hours. Ankle to boot-top deep wet snow on solar aspects below 8200 ft. Below 8000 ft. numerous shrubs and bushes still remained exposed. Forecaster
01/28/2019 - 12:00
Snowpack Observation 		Castle Peak
Donner Summit Area 		Looking south down the Sierra Crest. High level cloud cover preventing widespread snow surface softening Forecaster
01/28/2019 - 10:30
Snowpack Observation 		Stevens Peak
Carson Pass Area 		Cloudy skies kept the snow surfaces firm and frozen. Mostly supportable but sometimes breakable sun crusts existed on E aspects. Firm uneven surfaces including exposed rain crusts existed on E-NE aspects. Small pinwheels and rollerballs triggered by a ski cut on an ENE facing slope around 8200 ft. Forecaster
01/27/2019 - 14:30
Snowpack Observation 		White Rock Lake and surrounding are
Independence Lake Area 		Public
01/26/2019 - 14:45
Snowpack Observation 		The Grills AKA Tom's Meadow
Independence Lake Area 		Public

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