Support the forecast! Support the forecast!

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

Observation: Turnagain

Location: Magnum NW shoulder

Date:
Observer:
Route & General Observations

Standard route up NW shoulder to 2750′.

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

Older wet loose debris visible on Seattle Ridge, but nothing observed today before 3pm.

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

Clear skies
Mid 20F's
Light South wind

Snow surface

2mm crust at parking lot 950', all aspects - light rain crust?
Above 1000' -Suncrust on SW - S aspects 3- 4cm thick was softening by 2:30pm, but wasn't pushable yet
-Wind crust or 8-10cm dry loose snow on low angle and shaded aspects

Snowpack

Dug two pits on North aspects off the the NW shoulder of Magnum, each with very different structure

Test Pit 1: 2250', HS=105cm, 35*slope
CT15 - down 25cm on Leap Day NSF
CT20, ECTP27, ECTP25 down 70cm on 2mm facets below the NYE crust
*Dug adjacent to old debris from mid Feb avalanche cycle. Probed a fair bit. HS varied from 70cm to 120cm and I could feel crust/weak layers

Test Pit: 2750', HS=75cm, 34*
CTNx2
*The snow structure was very different in this area than the first pit. Although thin, it was right side up and didn't find any weak layers. I probed a 200-300' to get an overall sense of snow-depth and structure. Overall this area was shallow, 30 - 75cm, but didn't feel any obvious week layers. Mostly dense wind board or rimed crust.

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.