A series of storms with a Southerly flow will be moving through Southcentral Alaska over the next few days and into the weekend. Today ridgetop winds will be in the 20-30mph with 4-6” of new snow expected to fall throughout the day. Temperatures will continue to climb, which could bring rain as high as 1200’ by this afternoon.
Wind Slabs: Expect fresh wind slabs to be tender and isolated to leeward terrain features. These slabs will be growing throughout the day and could be as thick as 12” by this afternoon. Pay attention to the wind direction and where the snow is being loaded. Shooting cracks and any observed avalanche activity is a reminder that conditions are worsening and to avoid steeper slopes.
Cornices: Cornices will continue to grow with the addition of new snow and moderate winds. These features have been tender over the last few days and may release naturally with the additional weight of blowing snow. Give cornices lots of space by avoiding travel on or below them.
Moderate Northeasterly ridgetop winds were observed in Summit Lake, Fresno Ridge yesterday as well as in Turnagain Pass.
Glides continue to be widespread throughout Turnagain Pass in the 1000’-2500’ elevation band. Since glide cracks can spontaneously release at any time, take the time to identify slopes with this unpredictable hazard. This week with warming temperatures and forecasted rain and snow, glides will continue widening and may release without warning. Avoid steep slopes that harbor a big “brown frown.”
Glide cracks observed on the East face of Seattle Ridge from Sunburst. Photo taken on Feb.1 by Graham Predeger.
Yesterday Easterly winds started building in the afternoon; 20-30mph with gusts in the 40’s mph. Temperatures also started climbing with light rain falling below 700′. Overnight 3 € of new snow was recorded at Center Ridge Weather Station.
Today moderate Easterly ridgetop winds will continue throughout the day. 4-6 € of new snow is expected, and intensity will increase by early evening. Rain may push as high as 1200′.
Overnight 1.0 € of water is forecasted which could bring another 12 € of snow above 1200′ with rain below this elevation. Moderate Easterly winds may increase to strong by early tomorrow morning. Expect stormy conditions to continue for the next few days.
|Temp Avg (F)||Snow (in)||Water (in)||Snow Depth (in)|
|Center Ridge (1880′)||31||3||0.3||92|
|Summit Lake (1400′)||31||trace||0.1||27|
|Alyeska Mid (1700′)||32||2||0.2||69|
|Temp Avg (F)||Wind Dir||Wind Avg (mph)||Wind Gust (mph)|
|Seattle Ridge (2400′)||25||n/a||n/a||n/a|
|04/21/21||Turnagain||Observation: Sunburst||Schauer/ Behney Forecaster|
|04/19/21||Turnagain||Avalanche: Triangle, Seattle creek||Will Morrison|
|04/18/21||Turnagain||Avalanche: Turnagain Pass Road Obs||Andy Moderow|
|04/18/21||Turnagain||Observation: Seattle Ridge, approximately 300 yards south of the up track||Brent Byrne|
|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|
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.