Avalanche

Tuckerman Ravine, Bottom of R Cubed

Mark RensonPresidential Range
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Quick report

Cracking
isolated

Wind affected snow noted at Pinkham Notch 2028' and observed on the ascent all the way into the Bowl. The prior day along the Cog, no wind affected snow was noted from the base until we reached elevation 3800' - notable difference from one aspect to the other opposite one. Instability tests revealed CTM 45 down Q3 and ECTP (26) 45 down. Another test revealed a planar failure 52 down score 33 using 2arms from the shoulder (think of it as CTVH as in CT Very Hard - yeah, not a formal test, I know). Shooting crack next to TRT below Connection Cache. Result on a ski cut on a rollover next to TRT at 2900'

Weather

Air Temp
14
Cloud Cover
clear
Wind Loading
light
Rain Elevation
n/a
Recent Snowfall
0
Snow Avail For Transport
small smounts

11:30 at Hermit lake: -10.0C, Wind Calm, CLR, Winds on Headwall Moderate Swirling. TAir in Bowl at 12:30 -9.5C.

Snowpack

Huge spatial variability noted below R-Cubed. One probe measurement was 235cm while I probed a spot that took my entire 300cm probe without hitting bottom in a spot roughly 8 meters away. Upper 120cm was P+ wind slab over 1F.

Avalanche

Crowns noted above Test Slope, in Bowl, Lion Head and next to Raymond Cataract.