Support the forecast! Support the forecast!

Give to Friends of the Chugach National Forest Avalanche Info Center.

Observation: Summit

Location: Manitoba tree line

Date:
Observer:
Route & General Observations

Alaska Guide Collective Level 1 course. Manitoba west face to 3000’

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?No
Collapsing (Whumphing)?Yes
Cracking (Shooting cracks)?No
Observer Comments

Whumpfing 3-4 meter radius at 2000’

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

Clear to partly cloudy, single digit temps, calm winds, no precipitation

Snow surface

Surface hoar to up to 1 cm, largest near tree line. Smooth powder, now tracked.

Snowpack

At 2000’ we heard whumpfing. 2 out of 12 pits had propagation down 33cm on facets.
ECT-medium

At 2500’ zero out of 8 had propagation in extended column tests.

Right side up snow pack

Photos & Video
Please upload photos below. Maximum of 5 megabytes per image. Click here for help on resizing images. If you are having trouble uploading please email images separately to staff.