Bagley Basin - Baker BC
Jan. 8, 2019, 7:30 p.m. PST
Weather: OVC > X by 10am - local south wind (gusting to strong by noon) began redistributing snow onto N'ly slopes and features at 9am - intense wind transport low in NTL terrain by noon. Much snow available for transport.
Snowpack: 40-60cm HST over 12/5 MFcr (rain event) - +100cm wind loaded locations. Touchy new wind slabs forming today to 40cm - primarily on N'ly slopes and cross-loaded features. Failing in F PP/DF - this layer was snow surface 12/8 AM. Older storm layers and wind slabs from 12/5 thru 12/7 present but unreactive in testing - some older wind slabs (>36hrs) in higher, more loaded terrain were most likely still reactive first thing in the AM
Avalanches: 1 skier triggered D1.5 on north facing cross loaded feature @ 4500' + many test slopes failing by 12pm. Touchy new wind slabs to 40cm deep with slow propagation - still enough to pull out adjoining pockets. These were failing on F snow below newly formed wind slabs.
Observation by Lee Lazzara
Did you see any avalanches? Yes
Did you trigger any avalanches? Yes
Was anyone caught in an Avalanche? No