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
01/20/2019 - 12:30 Freemont Camp - Heavenly Ski Area East Shore Area Snowpack Observation Public
01/20/2019 - 11:30 Carson Pass Carson Pass Area Snowpack Observation Scoured surfaces on the windward aspects. A mix of new snow on crusts and exposed crusts on leeward slopes. Forecaster
01/19/2019 - 12:30 Trimmer Peak Luther Pass Area (including Job and Freel) Snowpack Observation Localized cracking on wind features Public
01/19/2019 - 12:00 English Mountain Independence Lake Area Snowpack Observation Roller balls on the west side of Jackson Meadows Reservoir from rain on snow. Small crown from wet snow avalanche near noted lat/long. Another small crown from wet snow avalanche near noted lat/long. Fog and light rain on NE side of English Mtn. Forecaster
01/19/2019 - 11:45 Mt. Rose Mount Rose Area Snowpack Observation Public
01/19/2019 - 11:15 Chief Creek drainage Cabin Creek, Deep Creek, or Pole Creek Area Snowpack Observation buried surface hoar propagation saw test (pst 20/130 end) Snowpack settlement

20190119

Guide
Alpenglow Expeditions
01/18/2019 - 13:00 Incline Lake Peak Mount Rose Area Snowpack Observation Small natural cornice failure with small wind slab avalanche. Large and fragile cornices along ridgeline. Pointing to buried surface hoar down 140cm from surface. Large surface hoar under the DT that failed.  Forecaster
01/18/2019 - 12:30 Powderhouse Luther Pass Area (including Job and Freel) Snowpack Observation Public
01/18/2019 - 11:00 Near Frog Lake Carson Pass Area Snowpack Observation Settlement cone present first thing in the morning. Crown from a natural avalanche during storm. Several cornices were pulling away and revealing cracks. Down 70 cms adjacent to the old crown, 5-10mm surface hoar crystals. Around noon a wet fog rolled through coating everything in rain droplets. Professional Observer
01/18/2019 - 10:15 Shirley Canyon Cabin Creek, Deep Creek, or Pole Creek Area Snowpack Observation Minor wind slab cracking Large cornice drop, no slab failure Early stage settlement ring Roller Balls Profile Guide
Alpenglow Expeditions
01/17/2019 - 13:00 Brockway Summit Sawtooth Ridge to Tahoe City Snowpack Observation Isolating the column took some digging. The layer of with potential buried surface hoar was knee level Public
01/17/2019 - 11:00 Johnson Canyon Donner Summit Area Snowpack Observation Cornice collapse and wind slab avalanche. Shooting crack around rock following collapse with whumpf. Whumpf triggered by skier at that location. Frozen rain on tree branch. Forecaster
01/16/2019 - 15:00 Tamarack Peak Mount Rose Area Avalanche Observation Look closely and you can see a size 2 avalanche below the ridge Shooting Cracks from Ski Tips Can you Spot the Surface Hoar? Obvious layer found about 65cm Down Public
01/16/2019 - 13:00 near Frog Lake Carson Pass Area Avalanche Observation Crown at midpoint of avalanche. Lowest portion of the debris. Looking up towards the start zone. Snow pushed up against tree by slide. Looking down from where the cornice broke that triggered this slide. Profile of avalanche crown. Facets are by fingers of glove. Shovel blade is roughly at bed surface. Professional Observer
01/16/2019 - 13:00 2.5k west of peak 8740 Independence Lake Area Avalanche Observation Test slope avalanche on small wind loaded cornice Shooting crack from snowmobile ski tip Shooting crack from snowmobile track Public

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