Week in Review for 3/10/2018 - 3/16/2018

Dates of the Week: 
3/10/2018 to 3/16/2018
Avalanche Problems: 
General Snowpack Structure: 


  • PWL gains strength most evidence points to layer going dormant with a few outliers
  • Slab above PWL continues to consolidate
  • Added rain crusts to snowpack above the snow from the beginning of March.
  • Friday adds storm snow and wind slabs to snowpack above the rain crust.
Weather Events: 


  • Weak warm storm with little precip passes through the area on Sat-Sun
  • Warming and clearing Mon
  • Significant storm on Tuesday-Wed. Starting with rain up to at least 9200 probably higher. Ending with 15 to 22 inches of snow by Thursday morning
  • Small break in the weather on Thursday morning before another significant storm starts Thursday afternoon and runs through Sat. (28 to 50 inches of new snow)
  • Strong to gale force SW winds during the storms.

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
03/11/2018 - 12:30 Nat Geo, Granite Chief Peak Cabin Creek, Deep Creek, or Pole Creek Area Avalanche Observation Surface Hoar Rounding Facets, North Aspect, 8300' Loose Dry avalanche in Nat Geo Guide
Alpenglow Expeditions
03/11/2018 - 11:30 Chickadee Ridge Mount Rose Area Snowpack Observation Public
03/11/2018 - 08:00 Wildflower Ridge Donner Summit Area Snowpack Observation Public
03/11/2018 - 01:00 Elephants Hump Carson Pass Area Snowpack Observation Mid level cloud cover from 7000' to 8000' from Homewood through South Lake Tahoe at 1pm.  Limited roller balls on sun exposed NE aspects in late morning hours. Forecaster