Bollettino valanghe

Stevens Pass

Northwest Avalanche Center
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Pericolo valanghe

Fri
Alta quota
1 · Debole
Limite del bosco
2 · Moderato
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

You may be able to trigger avalanches on steep slopes where you find moist snow on or near the surface. The sun may filter through the clouds to warm the snow surface. Expect mostly cloudy skies, mild temperatures and light precipitation.

Problemi valanghivi

  • Loose Wet

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

    While there's not a major concern for avalanches on Thursday, conditions aren't generally safe. Avalanches will be most likely at middle elevations, especially if the snow surface doesn't freeze overnight. Watch for the sun warming surfaces through the clouds. 1-2 feet of recent snow could slide on the early April crust where it remains moist and unfrozen.

    If you find these conditions, move to lower-angle and more shaded terrain. You may not be able to trigger wet avalanches unless you're on very steep (40 degree) slopes.  Even small avalanches can be dangerous if they push you into rocks or gullies.

    (4/9/2024)

    10 inches of new snow at Stevens Pass Ski Area and warm temperatures caused natural wet avalanche activity Tuesday in closed terrain. Expect more of this activity on Wednesday

    Photo: Stevens Pass Ski Patrol

Avalanche Discussion

If you travel above 6,000 feet, you may encounter recently drifted snow. We expect that any lingering wind slabs will be difficult to trigger. However, be prepared to make your own assessment. Use small test slopes and wind features in low-angle terrain to see how easily wind-drifted slabs will break. If you see cracks that shoot through the snow, consider steering around drifted pillows of snow on slopes steeper than 35 degrees.

On Wednesday, sun and warm temperatures melted the already moist recent snow. Observers reported a number of avalanches in the recent snow in the past couple of days. These were mostly small wet loose avalanches, though some small, drier storm and wind slab avalanches were reported on Tuesday. Up to 1 foot of snow accumulated by Tuesday morning, leaving the early April crust 1.5-2' below the surface. Below 4,500ft there was little accumulation as most of the precipitation was liquid. 

Most snow will likely be wet or moist. Upper-elevation shady slopes may have dry snow on the surface. At low and middle elevations, you will find that much of the snowpack is moist and unfrozen. Snowlines are rapidly receding and open creeks and holes are appearing in the snow at lower and mid elevations. Many low-elevation areas lack enough snow for winter travel or avalanches.

Your avalanche, snowpack, or weather observations are extremely valuable to the avalanche community. Help create a more accurate forecast by submitting your observations HERE. 

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