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Turnagain Pass Avalanche Forecast RSS

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ARCHIVED FORECAST - All forecasts expire after 24 hours from the posting date/time.
Issued
Thu, April 24th, 2014 - 7:00AM
Expires
Fri, April 25th, 2014 - 7:00AM
Forecaster
Kevin Wright
The Bottom Line

Avalanche danger is generally  LOW again today at all elevations.  The possible exception to this will be late in the day as the snowpack warms up and loses strength.

We have seen some wet loose avalanche activity from warm temperatures in the afternoon/evening.  These slow moving avalanches can pick up enough volume to be dangerous if you are in the wrong place at the wrong time.  

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Thu, April 24th, 2014
Alpine
Above 2,500'
Low (1)
Avalanche risk
Treeline
1,000'-2,500'
Low (1)
Avalanche risk
Below Treeline
Below 1,000'
Low (1)
Avalanche risk
Alpine
Above 2,500'
Avalanche risk
Low (1)
Treeline
1,000'-2,500'
Avalanche risk
Low (1)
Below Treeline
Below 1,000'
Avalanche risk
Low (1)
Danger Scale:
No Rating (0)
Low (1)
Moderate (2)
Considerable (3)
High (4)
Extreme (5)
Avalanche Problem 1
  • Normal Caution
    Normal Caution
Normal Caution
Normal Caution means triggering an avalanche is unlikely but not impossible.
More info at Avalanche.org

The snowpack continues to melt slowly each day.  Night-time temperatures are the key right now, with below freezing temps allowing the snowpack to maintain a little bit of strength.  This strength will be lost (and avalanche danger may increase significantly) if we get nights without freezing temperatures.  For today, we don’t expect a significant change from conditions over the last week.  

Wet loose avalanches have been noted in our zone recently.  The West face of Pyramid peak had a couple of lobes of wet loose snow travel the full length of the face sometime in the last 2 days.  This kind of avalanche activity is very unlikely in the morning when temperatures are colder, and increases in probability as the day gets warmer and the snow gets softer.  

Cornice fall will also become more dangerous late in the day as warming increases the possibility for spontaneous or human triggered cornices.  

The snowpack is very close to an “isothermal” state.  This is the point where all layers in the snowpack are the same temperature – 32 degrees.  Clues we monitor to gage the strength of the snowpack at this point include – natural avalanche activity, boot or ski penetration, “wetness” of the snowpack, and free water being released from the snowpack.  If these factors get significantly worse, then the backcountry could become dangerous.

Weather
Thu, April 24th, 2014

With no precipitation to speak of in several days, temperature is the most significant meteorological factor.  At mid elevations, temperatures are reaching the mid 40s during the peak of the day.  Overnight we had cooling down to below freezing.

                                     Low    High
Sunburst (3,812′)                     25       34.9
Seattle (2,400′)                           27.4     34.5
Center Ridge (1,880′)     28.9     48.7  

Our recent stretch of sunny and warm days looks to be coming to a close today.  Clouds will be moving in this afternoon with a chance of rain over the next few days.  Wind will increase tonight, with a Southeast flow to 16-25mph at the ridgetops.  

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Riding Areas
Updated Mon, October 26th, 2020

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: mailroom_r10_chugach@fs.fed.us

Area Status Weather & Riding Conditions
Glacier District
Johnson Pass
Closed
Placer River
Closed
Skookum Drainage
Closed
Turnagain Pass
Closed
Twentymile
Closed
Seward District
Carter Lake
Closed
Lost Lake Trail
Closed
Primrose Trail
Closed
Resurrection Pass Trail
Closed
Snug Harbor
Closed
South Fork Snow River Corridor
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Summit Lake
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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.