Snowpack

Dunderberg Meadows

Spencer RogersBridgeport Avalanche Center
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Quick report

Cracking
isolated
Collapsing
widespread

Today I toured through sheltered, low angle terrain above the Dunderberg meadows area. Moderate to heavy snowfall and moderate SW wind occurred during my tour between 930 AM and 130 PM. 3-5 inches of low density snow fell while I was out. Despite winds, I observed minimal wind effect on snow surface in the sheltered areas I travelled through. At higher exposed areas this new snow could be easily transported. I received widespread feedback from the snowpack in the form of whumpfing while skinning and slope scale collapses that I could hear rumble up the slopes. Widespread whumpfing and several slope scale collapses that rumbled upslope in open sheltered terrain. I did not encounter wind slab in the sheltered low angle terrain I rode through although it seemed likely to be forming in higher more exposed areas.

Weather

Air Temp
below freezing
Cloud Cover
overcast
Wind Loading
light
Recent Snowfall
7-12 cm
Snow Avail For Transport
moderate amounts

Moderate to Heavy snowfall during midday hours. Moderate SW winds in sheltered terrain. Visibility was limited at times. Around 5” of new snow on Virginia lakes road at 130 pm. Road was clear when I began my trip. I noticed after returning home from my tour that snowfall at 6700' had turned to rain by early evening.

Snowpack

By the time I left at 130 pm, 3-5 inches of new low density snow had fallen. On E to NE facing slopes NTL I encountered widespread whumpfing and slope scale collapses while skinning. On a NE slope in an open but protected area at 9600’ I triggered a collapse that audibly rumbled quite a distance upslope. I dug in the snow on a similar slope with HS 100 cm. ECTs here produced propagating results (ECTP8 and ECTP6) at 37 cm from surface within 4f facets above a P hard crust. I found under foot cracking in new snow only in isolated locations in the sheltered terrain I traveled through.