Bollettino valanghe

East Slopes South

Northwest Avalanche Center
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Pericolo valanghe

Fri
Alta quota
1 · Debole
Limite del bosco
1 · Debole
Sotto il limite
1 · Debole
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Non aggiornato — questo bollettino è scaduto 4 years ago. Stai vedendo condizioni passate, non il bollettino in corso.

In sintesi

Sunshine and warm temperatures may cause another round of small wet avalanches. Give steep, sunny slopes some space if you notice signs of instability such as rollerballs or pinwheels initiating.

Problemi valanghivi

  • Loose Wet

    • Alta quota
    • Limite del bosco
    • Sotto il limite del bosco
    Probabilità
    Unlikely
    Dimensione
    1–1.5

    As the sun and temperatures rise, you may encounter small wet loose avalanches on sunny slopes.  These will likely be small and isolated, since most sunny slopes have already gone through this process multiple times. However, this wet snow should still be on your mind as you travel through the mountains, especially if you decide to travel in more consequential terrain where a small slide can have a less-than-ideal outcome.  

    Use visual clues to help you identify slopes of concern, such as looking for rollerballs and pinwheels initiating. These are indicators that larger, wet loose avalanches may soon follow. Give yourself some space from steep, sunny slopes if you see these signs. 

    (1/25/2023)

    Look for rollerballs like this to help you identify slopes of concern as the day warms up. 

    Photo: Jere Burrell - Guided Exposure

Avalanche Discussion

Thursday should be another pleasant day to be in the mountains across the East-South. You will likely encounter a mixed bag of conditions while out.  Due to recent warm temperatures and high freezing levels, aspects that face the sun will likely have a thin crust in the morning. To find better riding conditions, you’ll want to find more shaded slopes where cold, dry snow still exists. Although you’ll still want to dig down and look for a possible, preserved buried weak layer above a crust about 12 inches down. 

At the highest elevations on north facing slopes, you may still find preserved, soft snow sitting on a crust. In these isolated areas, you may still find stubborn, old wind slabs or even fresh shallow ones forming as NW winds ramp up during the afternoon. These will likely be small and isolated (if it even occurs), however, it will be good for you to be in tune with the changing conditions as the day progresses.  

On Tuesday, I traveled in the Gold Hill Ridge area on SR410 corridor. I found variable conditions with south aspects holding a shallow, isothermal-like snowpack.  On more east facing slopes I found a deeper, colder, and more layered snowpack.  Check out my observation here for more details. 

If you get out into the mountains, let us know what you see by submitting an observation ! Even just a simple picture can go a long way.

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