Manto nevoso

G̱eisán

Jeff MoskowitzLutak
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Foto dell’osservazione 1Foto dell’osservazione 2

Quick report

Surface conditions were firm with a thin crust that capped a few inches of snow from this past weekend. This was all over a widespread hard re-frozen crust from the Jan 27-28th rain and warming event. Surface hoar was growing in protected areas. Fixed the snow sensor on the weather station and probed a total height of snow at 245cm which is 8ft.

Weather

Air Temp
23
Cloud Cover
clear

Clear skies with building high-level clouds later in the day. Calm.

Snowpack

  • Dug a quick pit at 2,800' on an E-aspect.
  • The total snow depth was 290cm.
  • A thin surface crust capped 5cm of new snow from last weekend.
  • Then the 27-29th layer of 35cm pencil hard melt-freeze crust -- This is the strong widespread crust.
  • Below that was an easy-to-see rain crust/facet combo interface over a 20cm layer of 1-finger 1-2mm facets.
  • This was over another 35cm+ hard melt-freeze crust with moist snow below that.
  • Strong temperature gradients appear to be at work between the two thick melt-freeze crusts.