Today is all about what the weather might do. Snow has been the talk of Southcentral Alaska over the last few days, but unfortunately Girdwood and Turnagain have only received a trace of new snow. It looks like today might be more of the same as most of the precipitation tracks up Cook Inlet. There remains a chance of snow (2-4”) at higher elevations and freezing rain at sea level. Rain/snow line could be as high as 1000’ today.
Ridgetop winds are expected to be moderate (15-25mph) from the Northeast, just enough to form small isolated wind slabs on leeward features in the alpine. Currently 2-6” of low-density snow is available for transport, and if we see up to 4” of new snow, small shallow slabs (4-8”) are possible on steep leeward features at higher elevations. Heighten awareness is advised in steep terrain where smooth pillow-like windslabs could be lurking.
Pay attention to how the snow changes throughout the day and be on the lookout for small isolated soft slabs on steep features at mid elevations. We currently have a weak interface where 2-4” of poorly bonded old snow is sitting on a melt/freeze crust. Today temperatures will be in the high 20’sF to low 30’sF at mid elevations (2500-3000′,) and if we see snow today soft storm slabs (4” deep) are possible. Luckily this is a low consequence hazard, but still warrants caution on large steep terrain features above 35°.
Early seaon hazards do exist at lower elevations where rocks, branches, and frozen ice are barely covered by a trace of new snow and surface hoar at elevations below 1500′. Use caution today at this elevation band where these harzards may become less visible if we do recieve more snow.
Photo taken Jan.22, 2015 at 1200′ on the East side of Seattle Ridge uptrack.
Yesterday a trace of new snow was observed, just under an inch in Turnagain Pass and Girdwood. Ridgetop winds were moderate at times , 10-25mph, mostly from the East and Northeast. Temperatures stayed cool at sea level (teens to mid 20’sF.)
Today a low-pressure system has positioned itself nicely to deliver snow to Western Kenai Peninsula and the Matanuska Valley. Above 1000′ Girdwood and Turnagain Pass may see 2-4 € of snow today. Ridgetop winds will be moderate from the Northeast 15-25mph. Temps are expected to climb into the low 30’sF with rain/snowline around 1000′. A freezing rain advisory has been issued for roadways along Turnagain Arm until 3pm.
3-5 € of snow is forecasted for this evening with an additional 2 € overnight. Winds look like they will be light to moderate (10-20mph) from the Northeast. Temperatures are expected to cool slightly (mid to high 20’sF) increasing the potential for snow at sea level.
*Image below is screenshot at 6:41am of the the current snow storm tracking up Cook Inlet – not currently looking good for precip in Girdwood/Turnagain area.
|Temp Avg (F)||Snow (in)||Water (in)||Snow Depth (in)|
|Center Ridge (1880′)||27||trace||.05||30|
|Summit Lake (1400′)||21||0.1||1||7|
|Alyeska Mid (1700′)||26||.12||1||19|
|Temp Avg (F)||Wind Dir||Wind Avg (mph)||Wind Gust (mph)|
|Seattle Ridge (2400′)||25||Var.||13||33|
|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|
|04/12/21||Turnagain||Observation: Tincan||Johnston-Bloom / Latosuo 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.