Wind and snow that came as a result of a quick hitting storm on 12/18 have left stiff wind slabs in upper elevation starting zones. Winds from this recent storm deposited slabs on generally West, Southwest and South facing slopes. These slabs are “upside down” where the wind was most prevalent and are sitting on weak snow on top of a crust. It has been 24 hours since this last storm abated. As a result the snow will be less reactive today. That does not mean that things have “healed”. Given the general makeup of our snowpack, it will still be possible to trigger old wind slabs that are not well bonded to the underlying snow.
If you experience collapsing like we did yesterday, it will be worth scaling back your objectives and terrain choices. Collapsing is one of three obvious signs of instability (the others are recent avalanches and shooting cracks). When any one of these signs are present it is the snow telling you to “back off”. Avoiding steep slopes with snow that sounds hollow or has a rounded, pillowy look to it will help in avoiding this problem today.
In the past 24 hours no new snow was reported. Temperatures have risen overnight with increased cloud cover. Ridge top temperatures are currently in the low 20s F. Winds have been light out of the East and Southeast.
Today we can expect snow showers beginning in the morning and increasing late in the day into the overnight hours. Accumulation of 1-2 € is possible by the end of the day. Temperatures will continue a general upward trend and should remain in the mid to upper 20s F at ridge tops. Winds will be light out of the Southwest.
A trough of low pressure in the Bering Sea will continue to send small shots of moisture in our direction into the weekend. Continued light snow showers and rising temps are on tap for the next several days.
|04/18/21||Turnagain||Avalanche: Turnagain Pass Road Obs||Andy Moderow|
|04/17/21||Turnagain||Avalanche: Road obs||Johnston-Bloom / Moderow Forecaster|
|04/16/21||Turnagain||Avalanche: Seattle Ridge||Wendy Wagner Forecaster|
|04/16/21||Turnagain||Avalanche: Turnagain Pass, non-motorized side seen from Seattle Ridge||CNFAIC Staff Forecaster|
|04/16/21||Turnagain||Observation: Sunburst||Lance breeding|
|04/15/21||Turnagain||Observation: Tincan||Schauer/ Rothman Forecaster|
|04/13/21||Turnagain||Observation: Turnagain Pass Road Obs||A Schauer Forecaster|
|04/12/21||Turnagain||Observation: Tincan||Johnston-Bloom / Latosuo Forecaster|
|04/10/21||Turnagain||Observation: north sides||lance breeding|
|04/09/21||Turnagain||Observation: Girdwood to Turnagain Road Observations||W Wagner Forecaster|
Status of riding areas across the Chugach NF is managed by the Glacier and Seward Ranger Districts, not avalanche center staff. Riding area information is posted as a public service to our users and updated based on snow depth and snow density to prevent resource damage at trailhead locations. Riding area questions contact: email@example.com
|Area||Status||Weather & Riding Conditions|
This is a general backcountry avalanche advisory issued for Turnagain Arm with Turnagain Pass as the core advisory area. This advisory does not apply to highways, railroads or operating ski areas.