Jumbo Pass

Quick report

Riding Quality

amazing

Weather

Sky Condition

overcast

Precipitation Type

snow

Snowpack

Depth

200

Obs Type

summary

Test Fracture

sudden

Test Initiation

veryEasy

Cracking Observed

1

Whumpfing Observed

1

CTE 2 dn 65 SP on SH/FC 5-10mm East Asp. 35+ degree 2000 m

Avalanche

Trigger Type

skier

Trigger Sub Type

remote

Number Of Avalanches

6-10

Avalanche Occurrence Datetime

2018-01-09T12:00:00

Several skier remote triggered and sympathetic avalanches Sz 1-2. 4-50m distance away Generally 4F soft slab. Elevation range, 2000-2400m. All aspects except NW-N. Mostly East. Steep unsupported features (35+ deg), some East were surprisingly low angle. Slab depth 40-70 cm. Slab width 10-200m Run length 10-100m. very fast, but not as far as expected. Failure plane was SH/FC, SH-Sz 5-10mm. Suspect Dec 27th interface. Poor visibility. Photos were hard to capture. avalanche with skier tracks was triggered days earlier from trees in foreground, approx. 50 m away.