Snowpack

Small Creek

Gareth BrownIntermountain
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Observation photo 1Observation photo 2

Quick report

Cracking
specific

On the drive up, did not notice any major natural avalanche activity besides Town mountain with debris deposited on the bench above crooked creek.  Clouds prevented a clear view of evrything but was better on the way back to town.

Signs of instability existed in areas where fresh wind slabs were forming.  Shooting cracks were observed up to 15' in length on cross-loaded slope, and one small natural wind slab had released at 3600'/NW./1 foot deep.  There was still plenty of protected in snow sheltered terrain at mid elevations but this was changing during the day with the distribution of wind affected areas increasing.  All visible high peaks in the area were flagging heavily.

Pit results produced ECTN17 down 20cms and ECTN27 down 50 cms at New/old Interface. HS 250cms/3500'/N.

Shooting cracks were found on the rollovers of freshly cross loaded terrain 1-2 feet in depth. Natural R1-D1 windslab was observed @3600' on a loaded NW aspect 1 foot deep/ 100' wide

Weather

Air Temp
-2
Cloud Cover
broken
Wind Loading
moderate
Rain Elevation
1900
Recent Snowfall
50
Snow Avail For Transport
large amounts

Flat light, cold and windy

Snowpack

15 cms of snow was found on a rain crust that formed on 1/26 up to 1900'.  Above that settled storm snow averaged 50 cms in depth, with some thinner areas due to storm wind redistribution.  Settled storm snow was found to be right side up without any notable reaction in stability tests.  Snow structure was good beneath the storm snow as well.

Primary concern was reactive and potentially deep wind slab formation