Eleven Guides PM Report (Cat Tenure Irwin)

CB Avalanche Center2017-18 Observations

Location: Kebler Pass Area
Date of Observation: 02/10/2018
Name: Eleven Guides

Subject: Eleven Guides PM Report (Cat Tenure Irwin)
Aspect: South, South West, West
Elevation: 10,100-12,300


Several Dry Loose avalanches (D-1) on steeper slopes especially later in the day
running moderate speeds within new snow. Surprised to see JA glade sluff, pick up speed and deliver a small
powder cloud into the trees. Thornton’s Glade ran faster with more mass. Thornton’s was the only run that
we observed a storm slab crack and propagate 100′ wide but still ran like a dry loose but with some mass to
it D1.5.

Weather: Obscured, Snowing S5 most of the day, winds west moderate with strong gusts, high temps
were at midnight (29F) and cooling all day. 17F & 11F at 16:00. Still snowing at 17:00 S2.
Snowpack observations:

Snowpack: Very little to no cracking in the new snow, not feeling slabby even as high as
Moonrise. New snow came in denser and got lighter through the day and seems like it will continue tonight
with cold temps. Not sure how well it is bonded to the old crusts on southerlies as we stayed mostly
straight west. The sluffs were not running at the interface but within new snow where it got less dense.
Avalanche observations: