Boletín de aludes

Central Sierra Nevada

Sierra Avalanche Center
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Peligro de aludes

Alta montaña
1 · Débil
Límite del bosque
1 · Débil
Bajo el límite
1 · Débil
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Desactualizado: este boletín caducó 7 years ago. Estás viendo condiciones pasadas, no el boletín vigente.

Lo esencial

Firm surfaces, breakable crusts, and continued NE winds will continue to vex backcountry travelers today. Mostly frozen snow surfaces and very little new snow for the wind to blow around should keep significant avalanche activity unlikely today. LOW avalanche danger exists at all elevations.

Problemas de aludes

  • Cornices

    • Alta montaña
    • Límite del bosque
    • Bajo el límite del bosque
    Probabilidad
    Unlikely
    Tamaño
    1

    NE winds will continue to hammer exposed slopes today. Expect to find hard wind-scoured surfaces and refrozen melt-freeze crusts on exposed areas in the backcountry today. A fall on one of these icy slopes could result in a long slide that would be difficult to arrest. In more sheltered areas, variable surface conditions with breakable crusts, firm surfaces, and some patches of "dust on crust" exist. Some lower elevation sun-exposed slopes may soften a bit today, but the weather should not allow enough warming for loose wet instabilities to form. 

    Blowing snow may exist still along ridgelines; however, fresh snowdrifts should still remain small in size and limited in distribution since very little snow is available for transport. 

    Even though avalanche problems remain unlikely, the firm and variable conditions pose other challenges. Travel using normal caution in the backcountry today. Make a travel plan that matches the intended terrain to your group's travel skills.

Avalanche Discussion

* In the Carson Pass area yesterday, observers reported blowing snow, blowing debris (including some rocks), and blowing trees. The extreme NE winds remained sustained all day.

* On Elephant's Hump yesterday, snow conditions were variable with small drifts of windblown snow next to areas of scoured crusts. Snowmobilers also reported variable conditions in the Blue Lakes area. In both these areas, the small areas of drifted snow would crack with ski or snowmobile cuts, but no drifts large enough to cause problems for backcountry travelers were observed.

* Sensors and observations indicate that limited new snow accumulated yesterday with maybe up to 3 inches in the Carson and Ebbetts Pass areas and less than 2 inches in some other places. Many areas did not receive any appreciable new snow. 

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