Support the forecast! Support the forecast!

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

Observation: Summit

Location: Manitoba

Date:
Observer:
Route & General Observations

Standard route to summit of Manitoba. Stopped a few hundered feet short of summit on west ridge to dig pit on south aspect. 8-12 inches of new dense heavy powder all the way up. A few localized collapses observed below tree line putting in fresh skin track.

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

No avalanches observed. A lot of severe wind affect on exposed ridges of most aspects. Minor localized collapses.

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

8-12 inches fresh dense heavy powder. High cloud cover, some blue sky and patchy fog. Slight downslope breeze. 29.7 F in Parking lot (10am), 24.7F at pit location ( 1:30pm).

Snow surface

Dense heavy powder. Breakthrough crust at times underneath new storm snow, mostly below tree line. Wind crust developing at Manitoba Summit.

Snowpack

Dug pit at 110cm snow depth. Obvious weak layers at 65cm and 70cm. ECT 7-8 Result affecting 1/3 of column. ECT 26 Q2. Temp gradient min/max .6F/.8F per 10cm. 26.9F at 50cm, 23.3F at 100cm, 24.7F air temp.

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.