Lawine

Norway Basin

WAHSouthern Wallowas
Auf der Karte ansehen

Quick report

Many loose wet avalanches were observed in the afternoon on steep slopes. Roller balls in the AM, D1 loose wet avalanches in the afternoon

Weather

Air Temp
32-36
Cloud Cover
obscured
Wind Loading
none
Rain Elevation
Unknown
Recent Snowfall
10
Snow Avail For Transport
none

Warm mostly foggy day with calm and occasional light wind from the south. Light snow showers in the afternoon but on accumulation.

Snowpack

Surface is saturated followed by 20cm of heavy snow from the last 48 hours. No hand shear results through the day. Signs of wind transported snow near ridges from previous days, but the surface is too saturated to be available for transport at this point.

Avalanche

Size
D1.5 R3
Type
HS
Aspect
NE
Trigger
AS
Elevation
7200 ft

This was a hard slab avalanche triggered by a skier unintentionally. The avalanche was large enough to partially bury a person. It was triggered in a relatively thin portion of the snowpack and slid on a faceted layer down 60cm. The avalanche occurred on a short but steep slope. The start zone was 37 degrees, the average slope angle was 30 degrees. Crown height averaged 2.5 feet and propagated 100’ across the slope, horizontal run 300’, vertical fall was 120’.