Central Sierra Nevada

Problemas de aludes

• 

  Wind Slabs

  N

  NE

  E

  SE

  S

  SW

  W

  NW

  • Alta montaña
  • Límite del bosque
  • Bajo el límite del bosque

  Probabilidad

  Possible

  Tamaño

  1

  Reactive wind slabs could still exist on NW-N-NE-E-SE aspects in near and above treeline terrain.  Increasing S/SW winds today along with additional snow starting this afternoon will create new wind slabs in wind exposed areas.  Warming and/or rain during the storm could make wind slab avalanches easier to trigger as they could take on wet slab characteristics.

  Look for blowing snow, cornice formation, and wind pillows.  Large cornices exist throughout the forecast area along exposed ridges and could pose travel concerns.

• 

  Loose Wet

  N

  NE

  E

  SE

  S

  SW

  W

  NW

  • Alta montaña
  • Límite del bosque
  • Bajo el límite del bosque

  Probabilidad

  Possible

  Tamaño

  1

  As this next storm impacts our area, warming conditions with the possibility of rain could make loose wet avalanches possible on all aspects in near and below treeline terrain.  Most of this loose wet activity should be in the form of roller balls, but larger avalanches that involve more snow could be possible in isolated areas.  If rain levels go higher than forecasted, more widespread avalanche activity would be expected.

  Terrain hazards like rocks, trees, or cliffs, could increase the consequences of being caught in even a small loose wet avalanche.  Small roller ball activity or pinwheels may be a precursor to larger loose wet avalanches to come.