Snowpack

Leavitt Lake/Sonora Pass

Spencer RogersBridgeport Avalanche Center
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Quick report

We rode up in the BWRA to see the effects of recent rain on the snowpack.  Multiple recent natural wet-loose avalanches were observed in D1-2 range.  We did not observe any wet-slab activity in this area.

It looked like our last storm rained up to around 10000' give or take. Runnels were present most locations below this elevation. Just a tad of new snow was visible on the tops of the highest peaks.

At 9800' on a NW aspect we found that rain had saturated the upper snowpack down to about 10-15cm from surface. The surface had superficially refrozen, but low temps got to only 35 F at Leavitt Lake Snotel last night. Facet/crust combo buried on 2/10 was present 85 cm from surface. These faceted grains were 4F hard and rounding, under an overlying 1F to 4F+ upper snowpack.

Recent rain has taken a toll on snowpack leaving obstacles closer to surface and larger sections of bare road.

Multiple natural wet loose avalanches from recent rains were observed.

Weather

Cloud Cover
few
Wind Loading
none
Snow Avail For Transport
none

Warm temps. Light to moderate winds on ridgetops.

Snowpack

At 9800' on a NW aspect we found that rain had saturated the upper snowpack down to about 10-15cm from surface. The surface had superficially refrozen, but low temps got to only 35 F at Leavitt Lake Snotel last night. Facet/crust combo buried on 2/10 was present 85 cm from surface. These faceted grains were 4F hard and rounding, under an overlying 1F to 4F+ upper snowpack.