Lawinenlagebericht

East Slopes South

Northwest Avalanche Center
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Lawinengefahr

Thu
Hochgebirge
Keine Stufe
Waldgrenze
Keine Stufe
Unterhalb
Keine Stufe
Veraltet — dieser Lagebericht ist 6 years ago abgelaufen. Du siehst vergangene Verhältnisse, nicht den aktuellen Bericht.

Kernpunkte

Avalanche conditions are generally stabilizing. Keep alert for and navigate around steep slopes where wind transported snow has accumulated, especially at upper elevations and near the Cascade crest. At lower elevations consider the effect of the sun on recent snow and steer away from solar slopes if you see roller balls, pinwheels, or other signs of weakening snow surfaces.

Avalanche Discussion

Uncertainty might not be the right word, but there are a lot of divergent factors in Wednesday's avalanche forecast. Erratic snow distribution, a strong temperature inversion with multiple freezing levels, and cool wind in Easterly flow are all factors that mean dramatically different avalanche conditions will be found at different aspects, elevations, and even slope to slope.

Last weekend's beautiful weather left snow surfaces at most elevations and aspects firm either by wind scouring or the sun's melt/freezing action. Monday's powerful winds and heavy snow deposited an erratic arrangement of snow depths and textures. Areas in the alpine are scoured bare or packed with dense wind affected snow. At lower elevations, sun-exposed slopes have begun to feel the effect of rising temperatures while shaded slopes still hold cold, poorly bonded snow.

The bottom line is that although conditions are generally stabilizing, vastly different conditions will be found at different elevations and on different sides of the mountain.  At lower elevations recognize where sun-affected snow is beginning to form roller balls and pinwheels suggesting you could trigger loose wet avalanches on slopes steeper than 35 degrees. In non-sun-affected terrain consider the bond between recent snow and the firm old snow beneath.  Recognize when you transition into wind affected terrain and navigate around cornices and steep pillow-like drifts.

 

During the ongoing Covid-19 pandemic, continue to follow the latest guidance from local, state and federal health officials. Avoid unnecessary risks that could impact first responders and stress medical resources.  Wear a mask when appropriate, practice social distancing, and consider recreating closer to home.

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