Yesterday my partner and I watched upper elevation starting zones being actively loaded by moderate winds out of the East. These slabs will mostly be in the 1 foot range today with areas holding deeper pockets up to 3’. Reactivity of these slabs will be on the decline throughout the day. If you find yourself venturing into high elevation starting zones approach with caution. It will take slope angles greater than 35 degrees to get slabs to release. Watch for shooting cracks and check under the surface to see how well the new snow is bonding.
Glide cracks have been opening up over the past 2 weeks around the forecast area on all aspects. Most of the activity is in the mid elevations, around 2,500’. We were able to see some newer cracks yesterday that had formed during this past week. Glide avalanches are unpredictable and require avoidance, as they can release at anytime. Glide avalanches don’t behave the same as new snow instabilities like wind slabs. Simply knowing where glide cracks exist is half the battle. Check the observations page for more info.
Photo: Glide crack that opened up sometime in the past week on Tincan, below Common Bowl.
Temperatures over the past 24 hours have cooled with freezing levels hovering around the 1,000-1,500' level this morning. Showery precipitation brought 1 € of new snow above 1,500' and rain below. Winds have slowed down overnight with ridgetop stations reporting speeds in the 5-10 mph range this morning out of the East.
Today expect cloudy skies with light precipitation. Snow accumulation will be minimal with 1-2 € expected. Rain/snow line will be around the 1,000'-1,500' level. Winds will be in the 5-10 mph range out of the East/Southeast. Temps at 1,000 will climb into the mid 30s before cooling back down again overnight.
The general pattern will remain unsettled through the long weekend. Expect rain and snow showers, light winds and temperatures to remain mild.
*Seattle wind data is 6 am-12am due to station malfunction.
|Temp Avg (F)||Snow (in)||Water (in)||Snow Depth (in)|
|Center Ridge (1880')||32||1||.1||30|
|Summit Lake (1400')||32||0||0||5|
|Alyeska Mid (1700')||33||.3||.2||18|
|Temp Avg (F)||Wind Dir||Wind Avg (mph)||Wind Gust (mph)|
|Seattle Ridge (2400')||27||VAR*||14*||33*|
|05/18/21||Turnagain||Observation: Tincan Ridge||Joe Kurtak|
|04/30/21||Turnagain||Observation: Sunburst||W Wagner Forecaster|
|04/27/21||Turnagain||Observation: Tincan Ridge||Joe Kurtak|
|04/26/21||Turnagain||Observation: Magnum||Creighton/ Hoople|
|04/25/21||Turnagain||Observation: Sunburst||Nick D'Alessio|
|04/24/21||Turnagain||Observation: Airplane obs||Johnston-Bloom / DiJulia /Hilliard Forecaster|
|04/24/21||Turnagain||Observation: Corn biscuit||Heather Johnson|
|04/23/21||Turnagain||Avalanche: Lynx Ck Drainage||W Wagner Forecaster|
|04/23/21||Turnagain||Avalanche: Sunburst||Eeva Latosuo|
|04/23/21||Turnagain||Observation: Center Ridge Turnagain pass||Joe Kurtak|
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.