Bollettino valanghe

Summit Lake

Chugach National Forest Avalanche Center
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Pericolo valanghe

Wed
Alta quota
2 · Moderato
Limite del bosco
1 · Debole
Sotto il limite
1 · Debole
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Non aggiornato — questo bollettino è scaduto 2 years ago. Stai vedendo condizioni passate, non il bollettino in corso.

In sintesi

Fresh wind slabs up to 12” deep will be our main concern today. These may be easier to trigger and be a little larger than expected if they are sitting over buried weak layers. Wind slabs can be found about 2,500’ on steep wind loaded slopes, such as below ridges and in loaded gullies. 

SPECIAL ANNOUNCEMENTS:

SnowBall 2025 is this Friday! The Friends of the Chugach Avalanche Center and the Alaska Avalanche School are hosting the annual Snowball to celebrate another great winter season! There will be a silent auction, hors d’oeuvres, and live music from Wiley Post. All funds raised will benefit snow and avalanche safety in Alaska. Join us for a great night! 

Click here for more information.

Problemi valanghivi

  • Wind Slabs

    • Alta quota
    • Limite del bosco
    • Sotto il limite del bosco
    Probabilità
    Possible
    Dimensione
    1–2

    Winds slabs up to 1’ deep will be the main concern today above 2,500’. East winds are decreasing already and should average 5 to 15 mph today. It is also likely that these wind slabs will be sitting over weak faceted snow that has been forming on the surface. When this happens wind slabs tend to be easier to trigger for a bit longer and may produce larger than expected avalanches. 

    Wind slabs are typically found below ridge lines, on convex rolls, or in loaded gullies. Stiff snow over loose snow, and shooting cracks underneath you are clues you are traveling on a wind slab. Trying to trigger wind slabs on small inconsequential slopes is an excellent way to test the stability of the snow. Safer snow can be found on wind sheltered slopes. 

    Deep Persistent Slabs: There is an unlikely chance a wind slab avalanche could trigger a larger slab avalanche on a layer of buried weak snow. Although the ingredients exist for a deep persistent avalanche there has not been an observed avalanche failing on these layers in 2 weeks. Areas where the snow is thin are also more common places to trigger these weak layers. Consider thid hazard as you plan your route and travel in the backcountry. 

    (2/10/2025)

    Clouds flagging off of Wrong Mtn which generally means winds are blowing snow into fresh wind slabs.  

    Photo: Daniel Krueger

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