Sawtooth Avalanche Center

Public Field Report

Observation Details

Observation Date:
December 3, 2019
Submitted:
December 3, 2019
Zone or Region:
Galena Summit and Eastern Mtns
Activity:
Skiing/Snowboarding
Location:
Anti Cross --> Camp --> Avalanche

Signs of Unstable Snow

Did you see shooting cracks? 
No
Did you experience collapsing or whumpfing? 
Yes, Widespread

Observations

Clr. warm temps 30+ with inversion.
snow began to take some heat on solars by 11a. some glopping

extensive FCsf 5-8mm W--> N

frequent collapsing on N aspects
minimal snow on all other aspects 10-20cm

50-70cm on N aspects > 8500'
on N profile: 70-35- F PP/DF, 35-33 FC - MFcr - FC, 33-ground 2-3mm FC
ECTP8, ECTP6 down 35 on FC -MFcr

Media

extensive surface hoar on W-N

Advanced Observations

Observed Avalanche Problem #1: 
Wind Slab
Comments: 
NE 8400-9000. D1. reactive. LOC FC-Cr-FC combo down 30-35 .