Schneedecke

Thompson Pass/ Cracked Ice

Joshua McDonaldIntermountain
Auf der Karte ansehen
Beobachtungsfoto 1

Quick report

I did not observe any new avalanche activity in the past 24 hours.

Weather

Air Temp
30 at road level. 27 at 3200 feet
Cloud Cover
broken
Wind Loading
none
Rain Elevation
Rain crust under fresh snow to 2700 feet
Recent Snowfall
10cm overnight/morning
Snow Avail For Transport
moderate amounts

Weather from Valdez to Keystone Canyon alternated between heavy snow and Rain. Snow squalls, low fog, and near whiteout conditions in Thompson Pass and Cracked Ice area gave way to a partial clearing in the afternoon. Winds were light and variable from the SE to NE. Light blowing snow through Thompson Pass summit.

Snowpack

Near road level, approximately 10 cm of new snow was sitting on top of an eroding rain crust several centimeters thick. The new snow was surprisingly low-density considering the temperature was near 0 C. About 500 feet above road level, the buried rain crust disappeared, and the new snow became dryer and lighter-density.  A full profile at 3200 feet revealed a fairly homogenous snowpack with the exception of 2 erroding rain crusts  near ground level. Test results included ECTN-11 down 25cm. This layer easily produced dry loose slides on steep test slopes. No deeper reactivity was noted in Pit tests or test slopes.