Observation: Summit

Location: General Observation Summit Lake

Date:

December 22, 2017 12:08pm

Observer:

Alex McLain Professional

Route & General Observations

Today windy conditions in the upper elevations. Wind loading was observed on West facing aspects. In the Twin Peaks/Roaring Ridge area natural avalanche activity was observed with active wind loading of those slopes. Wind loading was also observed in the area around Butch and Tenderfoot Ridge. Very shallow and windswept ridges were observed on East facing aspects including Summit Peak, Colorado Peak and Fresno. See Pictures below.

Red Flags

Red flags are simple visual clues that are a sign of potential avalanche danger. Please record any sign of red flags below.

Obvious signs of instability

Recent Avalanches?	Yes
Collapsing (Whumphing)?	No
Cracking (Shooting cracks)?	No

Observer Comments

Active wind loading observed at upper elevations and ridge tops.

Weather & Snow Characteristics

Please provide details to help us determine the weather and snowpack during the time this observation took place.

Weather

Partly cloudy. Windy.
Summit Lake: Temperature 26F Past 24 hours Low 12F high 26F. Snow Depth 12"
Summit Lake MP45 (3800') Current Temperature: 26F Low 22F High 27F. Winds SSE 8-17mph,Gust 27mp

Photos & Video

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Natural Avalanche Near Twin Peaks and Roaring Ridge. Possible cornice break. Active windloading.

Windloading Tenderfoot Ridge area.

Tenderfoot Ridge....thin snowpack

Tenderfoot Ridge from the south.

Location

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