Observations from Tamarack Peak - Far East Ridge

Snowpit data in this area today showed a trend of increasing stability on the March 6 near crust facet layer. Snowpit test results compared to the March 11 snowpit test results and March 9 snowboarder triggered avalanche in this area indicate that triggering a persistent slab avalanche in this area has become unlikely at this time.

Snowpit tests continue to show that weak layers both above and below the crust combined with the overlying slab continue to hold the necessary characteristics for propagation to occur. Triggering is currently difficult. This may change and become much easier if the forecast storm event for March 19/20 verifies. With 1 to 2+ feet of new snow loading, this weak layer may reawaken and contribute to a persistent deep slab avalanche cycle.

Video: PST 37/100 (end) on March 6 near crust facet layer.

A test pit dug in very open near treeline terrain near the summit of Tamarack Peak at 9,730' on a NE aspect (39.31695, -119.91919) revealed dense windpack, no crust or facet layer at the old/recent storm snow interface, ECTX results, and a HS of 205cm. This elevation appeared to be above the upper limit of the melt-freeze crust that exists on the Far East Ridge at the documented pit profile/video location of 9,010' on a N aspect.

Despite thick cloud cover and moderate speed SW winds for most of the morning hours, 2 to 3 inches of wet surface snow existed on all aspects below 9,500' at noon.