Lawinenlagebericht

Lawinenlagebericht

Payette Avalanche Center
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Lawinengefahr

Hochgebirge
3 · Erheblich
Waldgrenze
2 · Mässig
Unterhalb
2 · Mässig
Veraltet — dieser Lagebericht ist 2 years ago abgelaufen. Du siehst vergangene Verhältnisse, nicht den aktuellen Bericht.

Kernpunkte

Over 2 feet of new snow and rising temps have likely created dry loose and storm slab avalanche danger.  Loose snow on steep slopes may move with you and knock you over and into bad places.

Use caution on slopes steeper than 35 degrees. Keep eyes on your partners from a safe spot out of avalanche terrain. If you are seeing cracking or other red flags, choose another lower angle slope to travel. 

Lawinenprobleme

  • Loose Dry

    • Hochgebirge
    • Waldgrenze
    • Unterhalb der Waldgrenze
    Wahrscheinlichkeit
    Likely
    Größe
    1–2

    As you increase the slope angle you are riding or sliding on, you are going to get more snow moving with you, maybe up to 3 feet deep in upper elevations. The higher you climb in elevation, the more serious this problem becomes as more snow can be entrained and swallow you whole. Utilizing islands of safety and sluff management techniques is going to be prudent in steep and consequential terrrain. 

    Terrain with traps like benches, gullies, and cliffs should be aproached with caution if not avoided entirely.

  • Storm Slabs

    • Hochgebirge
    • Waldgrenze
    • Unterhalb der Waldgrenze
    Wahrscheinlichkeit
    Possible
    Größe
    1–2

    The last 7 days have been snowy and have dropped over 30 inches of new snow with temps climbing toward the end of the cycle on Wednesday and Thursday. The upper 7-10 inches of snow is warmer and denser and may take upon slab like charactherisics as the upper snowpack settles.

    This denser upper foot or so has potential to relase storm slabs on slopes between 30 and 50 degrees. If you are seeing cracking or other red flags find another lower angle slope to play on.  Stay alert for changes in slope angle throught your travels!

     

Avalanche Discussion

Last Thursday, our latest storm cycle began and now has left us with just over 2 feet of new snow in the mountains. Winds have been light over the last few days toward the end of the storm and any lingering wind slabs have likely healed by now. The Sun will likely heat up solar surfaces and form crusts and release loose snow on steep and rocky East through West terrain which should be small, or D-1. 

Beneath the latest 2+ feet of new snow there is a possible weak layer that formed during a clear spell 2/11-2/12 when we noticed surface hoar that formed overnight. We have not seen any evidence of this in our observations, yet near west mountain earlier in the storm cycle (2/15) we had a report of a rider triggering an avalanche near Council Mtn.

Utilize good travel protocols like spreading out one at a time on slopes steeper than 30 degrees, watch your partners one at a time, and ease into steep terrain---use small slopes to test the snowpack in your favorite way in case you find a tender spot with a buried weak layer.

Check out the most recent observations, and if you have some good photos or info to share with others go ahead and submit an observation of your own...Thanks!

 

Today’s advisory is sponsored by Brundage Mountain Resort. Thank You Ken Rider and Crew, the PAC appreciates your continued support!