The unusually cool temperatures of this last spell of clear weather has helped to preserve the snow quality in many areas. This same weather pattern has also helped to weaken the snow in the upper foot of the snowpack. Throwing moderate winds into the mix has helped to move around this weak snow and create pockets of wind slab. As a result we have seen activity in the form of shallow wind slabs releasing throughout the forecast zone over the weekend. These slabs have now been sitting for a few days and will be less reactive than they have over the weekend. Despite this, it will still be prudent to pay attention to steep rollovers and wind loaded features above treeline.
The temperatures will rise enough today in the lower elevations to require careful observation of the snow surface on sunlit slopes. As the thermometer reading goes above freezing and the sun hits steep low elevation slopes, watch for small rollerballs, pinwheels and shallow point releases.
Loose Snow Avalanches. Those venturing into big and steep terrain will need to manage sluff today. Volume will be generally low and will become a greater concern in exposed terrain and above terrain traps.
The clear and relatively cold weather of the past week warmed slightly yesterday, with temps at Sunburst reaching a high of 20.8 degrees F and averaging 17 F. Winds calmed down (from an average in the teens in the morning) in the afternoon and have averaged 7 mph out of the northwest. No new precip has fallen in the past 24 hours.
In the mountains today temperatures will climb into the mid 30s F at 1,000′. Skies will remain mostly clear with potential for some clouds moving in late in the day. Winds will be very calm at 0-5 mph out of the north and northwest. No measurable precipitation is on the horizon for the next 24 hours.
The extended outlook is calling for continued dry conditions over the next several days.
Wendy will issue the next advisory tomorrow morning, April 16th.
|05/06/20||Turnagain||Avalanche: Pastoral Peak, north face||Andy Duenow|
|04/10/20||Turnagain||Avalanche: Wolverine||Mike Records|
|04/10/20||Turnagain||Observation: Eddies lookers right shoulder||Matt Yoder|
|04/09/20||Turnagain||Observation: Bench Peak||Mike Records|
|04/04/20||Turnagain||Observation: Pete’s North||Anonymous|
|03/26/20||Turnagain||Avalanche: Tincan – Proper (SW facing)||CNFAIC Staff|
|03/26/20||Turnagain||Avalanche: Seattle Ridge||W Wagner Forecaster|
|03/25/20||Turnagain||Avalanche: Sunburst Uptrack @ 2000′||J. Boisvert|
|03/24/20||Turnagain||Observation: 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: firstname.lastname@example.org
|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.