Very weak snowpack where Thanksgiving storms fell on old snow. Truly impressive rumbling collapses traveling many hundreds of feet, lasting for up to 10 seconds.
Wind found only in upper elevation, exposed terrain. Passing, isolated mid-level stratus did not significantly affect radiation picture.
|D2||SS||N-Natural||Difficult to be certain on bed surface and crown depth as these failed during the storm and had been filled in slightly. Based on widespread collapsing and poor test scores on Thanksgiving FC/DH (buried 11/26) I'd have to guess that that was the culprit, but near FCsf and SH are also contenders.|
Depth hoar produced repeatable ECTP scores in the low single digits (see snowpack image).
Layer Depth/Date: 11/26
Comments: FC/DH buried just before Thanksgiving (11/26)
Layer Depth/Date: 12/7
Comments: SH buried 12/7. Found in several locations. Unreactive in standard and non-standard stability tests, but probably worth keeping on the radar for a bit. Grains were standing upright and intruding into snow above.
Avoided all avalanche terrain that held sufficiently connected snow prior to 11/26. Paid close attention to the terrain above me. Would not have felt comfortable entering this area without a detailed knowledge of this year's snowpack evolution.