A layer of weak snow sitting between the January crust and the February snow has the potential to cause problems today. While this layer has become less reactive over the last week, it is still not trustworthy. The nature of a persistent weak layer is that it sticks around for a long time. Unlike storm related instabilities, a layer like this does not heal quickly. Rather, it lurks below the surface, waiting for the right trigger.
Areas where you would be most likely to activate this weak layer today are on slopes greater than 35 degrees, steep rollovers, and previously wind loaded pockets. Sunshine and excellent riding conditions have the potential to lure people onto bigger and steeper terrain. Don’t let a lack of activity on lower angle slopes allow you to let your guard down. It is much easier to manage this problem with conservative terrain choices than trying to outsmart this complex instability.
On steep sunlit aspects loose snow avalanches will be easy to trigger today. Expect these to be relatively low volume. Managing this problem requires awareness of snow moving around you and the ability to get out of its way. Loose snow sluffs have the potential to knock over skiers and snowboarders (less of an issue for snowachiners). This issue becomes more serious when terrain traps (e.g. trees, gullies, cliff bands) are below.
In the past 24 hours no new precipitation has fallen. Ridgetop winds have been light out of a variety of directions averaging 5mph with a max gust of 21mph. Temperatures at 3,800′ have averaged 9 degrees F.
Today expect mostly clear skies in the morning with clouds developing throughout the day. Temperatures will climb into the low 20s F at 1,000 feet. Ridgetop winds will be out of the Southeast at 15 mph.
A strengthening area of high pressure to the East and North of us is keeping several Low pressure systems at bay, limiting the chance for precipitation over the next several days.
|05/21/22||Turnagain||Avalanche: Magnum, Lipps and Tincan||CNFAIC Staff|
|05/17/22||Turnagain||Avalanche: Sunburst||CNFAIC Staff|
|05/17/22||Turnagain||Observation: Tincan Ridge||Joe Kurtak|
|05/11/22||Turnagain||Avalanche: Cornbiscuit and Magnum west faces||CNFAIC Staff Forecaster|
|05/07/22||Turnagain||Observation: Granddaddy||Kit Barton|
|04/29/22||Turnagain||Observation: Sunburst wx station||AS/ MM/ AM/ NH|
|04/28/22||Turnagain||Observation: More Turnagain Pass/Summit Lake wet slab activity||Alex Marienthal|
|04/27/22||Turnagain||Observation: Magnum||Sykes / Buttrick Forecaster|
|04/27/22||Turnagain||Observation: Girdwood/Summit/Turnagain Road obs||A S|
|04/24/22||Turnagain||Avalanche: Seattle Ridge – large glide avalanche on Repeat Offender path||CNFAIC Staff 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.