CNFAIC LogoCNFAIC Logo

Observations

Region: Anchorage Front Range
Location: Arctic Valley
Observer:
Date:

Route & General Observations

Toured up low angle terrain above tubing hill. Stayed to the right of Nike site and ravine below Nike site. Obscured peak until 4PM. Snowpack is variable across much of terrain due to previous wind.

Weather

Weather

Temp at Arctic Valley ridgetop temp 2.9 degrees F. Wind blowing from W at 1-2 mph. Obscured peaks. Actively snowing ranging from S1 to S-1.

Snow Characteristics

Snow surface

20 cm of new light snow.

Snowpack

Very variable snow depth and snowpack throughout valley. 20-30cm of this week's snow over bare ground to 180cm wind drifts, average of about 70cm coverage on southern aspects.
Previous wind affect from south and west wind.

Dug pit at 3100' SW aspect. Thirty cm of light new snow over rounded recent snow. Buried surface hoar/near surface facets evident at 35 cm down over harder rounded grain slab with variable melt freeze crust at 53 cm down. Rounded grain slab below that. CTH 21 Q2 (on BSH/near surface facets layer), CTE 6 PC in new snow, CTN. At same elevation, solar ice crust on S aspect.

Depth hoar sudden collapse in test in another pit in shallower area.



USFS SNOW AND AVALANCHE HOTLINE (907) 754-2369
If you have comments or questions regarding CNFAIC operations or winter recreation management, please email staff@chugachavalanche.org
© 2017 Chugach National Forest Avalanche Information Center. All rights reserved.
FCNFAIC
Donate
If you think a public avalanche
center is important then we urge
you to become a member & donate.


PickClickGive