Lawinenlagebericht

East Cabinet Mountains

Idaho Panhandle Avalanche Center
Auf der Karte ansehen

Lawinengefahr

Wed
Hochgebirge
4 · Gross
Waldgrenze
4 · Gross
Unterhalb
3 · Erheblich
Open full map
Veraltet — dieser Lagebericht ist 3 years ago abgelaufen. Du siehst vergangene Verhältnisse, nicht den aktuellen Bericht.

Kernpunkte

Heavy snowfall and strong winds will create dangerous avalanche conditions at tree line and above on Tuesday and Wednesday. Human triggered avalanches are very likely in steep terrain today. Avoid travelling in or below terrain steeper than 30 degrees.

Lawinenprobleme

  • Storm Slabs

    • Hochgebirge
    • Waldgrenze
    • Unterhalb der Waldgrenze
    Wahrscheinlichkeit
    Very Likely
    Größe
    1.5–3

    A winter storm rolled in last night and is bringing heavy snowfall with southwest winds predicted to crank at over 30 mph and gusts into the 50's. Predicted snowfall amounts at elevations above 5,000' range from 9-15" today, and another 6-14" tonight. Snowfall amounts will favor the West and East Cabinets and lesser amounts falling in the Purcell Range. This scenario will leave us with cohesive slabs of storm snow and wind slabs that will be easily triggered in steep terrain, particularly in wind loaded locations near ridgelines. Today is a "no-brainer" when making terrain choices. If you want to stay out of trouble, simply avoid travelling in or below steep and open slopes.

Avalanche Discussion

Today's avalanche danger is very much driven by current and predicted weather conditions. While this storm is just getting started, there is high confidence that it will continue to deliver heavy snowfall and winds over the next 24 hours. Prior to this storm our snowpack has been thin and relatively stable with layers that have potential but lack a significant slab or loading to cause an avalanche concern. That is all changing today as we add a cohesive load of new snow to the recipe. The most significant avalanche danger will be found at elevations above 5,500' today. Elevations below that will remain somewhat anchored by vegetation as the snowpack is very thin below 5,500'. The exception to this will be terrain in the East Cabinets where there is potential for larger avalanches to run out into terrain at lower elevations. 

Over the past month I have been doing most of my snowpack observations in the West and East Cabinets while avoiding the Purcell's due to the lack of snow. If you decide to venture into the Purcell's it is important to keep in mind that the thin snowpack also harbors multiple weak layers that were not a concern until now as we add a slab on top of this weak structure. These layers will remain a concern for weeks to come. The Purcell snowpack also has a much thinner base so you can expect to hit lots of buried obstacles if you decide to travel into that corner of the world.

Abgedeckte Regionen