State of the Snowpack for 1/12/2019 - 1/18/2019

Dates of the Week: 
1/12/2019 to 1/18/2019
Avalanche Problems: 
General Snowpack Structure: 
Weather Events: 
  • Jan 15-Jan 17 storm cycle deposited 3-5' of snow.
  • Gale force SW winds
  • Jan 18 light rain/misting event up to 9000-9500'.

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

Date and time of observation or avalanche occurrence Location Region Observation Type Photos Snowpack, Avalanche, Weather Videos Snowpit videos (tests, etc) Observation made by
01/16/2019 - 12:45 Slide Mountain Mount Rose Area Avalanche Observation Avalanche on Slide Mountain Public
01/16/2019 - 11:30 Rubicon Peak West Shore Area Snowpack Observation Shooting crack triggered while breaking trail. Connects ski pole to ski pole and beyond for a total of ~20'. Digging out the crack to look at the weak layer of buried surface hoar and density change. Forecaster
01/16/2019 - 11:30 Below Scott Peak Blackwood Canyon or Ward Canyon Area Snowpack Observation Surface hoar buried under 65cm of new snow Surface hoar grains removed from bottom of slab on ECTP6 Public
01/16/2019 - 11:00 Hwy. 89 North of Tahoe City Blackwood Canyon or Ward Canyon Area Avalanche Observation Forecaster
01/16/2019 - 11:00 Powderhouse Peak Luther Pass Area (including Job and Freel) Snowpack Observation This crack shot out approximately 40 feet in front of my ski. Profile of where crack propagated. Professional Observer
01/16/2019 - 11:00 Red Lake Carson Pass Area Avalanche Observation Shooting crack that triggered slide Crack ran about 50 yards in a curve to the starting point, a wind slab next to trees Looking down looking down and behind Looking behind us down the road we skinned up. The slide moved uphill from its original start Public
01/16/2019 - 09:30 Picnic Rock Brockway Sawtooth Ridge to Tahoe City Avalanche Observation Public
01/16/2019 - 02:00 Incline Lake Peak Mount Rose Area Avalanche Observation Public
01/16/2019 - 01:30 Bottom of Waterhouse Luther Pass Area (including Job and Freel) Snowpack Observation Educator
Alpine Skills International (ASI)
01/15/2019 - 14:15 Munchkins East Bowl Snowpack Observation

Munchkins Zone Storm Instability 1/15/19

Public
01/15/2019 - 13:15 Incline lake peak Mount Rose Area Snowpack Observation Calm to light winds on Ridge North aspect unsupported convex test slope loose dry/sluff Very small loose dry on 40 degree east aspect Public
01/15/2019 - 13:00 Scott Creek Blackwood Canyon or Ward Canyon Area Snowpack Observation Professional Observer
01/15/2019 - 12:00 Mt. Rose Mount Rose Area Snowpack Observation Surface hoar buried under ~2-3 cm (~1 inch) of new snow. Small failure on a wind-loaded test slope that we think failed on the buried Surface Hoar. Forecaster
01/15/2019 - 11:00 Jakes Peak West Shore Area Snowpack Observation Buried surface hoar was both widespread and reactive in this open terrain both below treeline and near treeline. , Forecaster
01/15/2019 - 08:00 Jake's Peak West Shore Area Snowpack Observation A view of the pit with distinct layers. Snow fall rates picked up to S1 or S2 as we continued to ascend. Minor surface instabilities/slough (NSF and new snow) were easy to trigger in steeper terrain. Public

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