Snowpack

McGee Creek

Jackson GeorgeWhitefish Range
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Quick report

The sun went back to work today after seemingly being on strike for the later part of November. • I observed moist surface conditions on southerlies all the way to my high point around 6400'. • Tree bombs became very active early in the day and continued until the days end. Many of these bombs initiated pinwheels. • I would expect that similar activity might have been occurring in larger/steeper terrain across the region, resulting in loose snow avalanches. The terrain I traveled in today didn't produce anything notable. • Despite the execrable sun, air temperatures remained just below freezing. (~30 degrees at noon)The cool air has continued to preserve the powder snow on polar aspects. These cooler places however are beginning to produce a nice crop of surface hoar and near surface facets. • Around 2-3pm, areas previously cursed by the sun were already beginning to refreeze into a breakable sun crust. • Snow surface remained dry below the inversion, which held strong at ~4500' all day long. *I personally wouldn't recommend skiing SE, S, SW, or W tomorrow. Unless you're traveling above 7000. I can't speak to what did or did not happen up there. Tree bombs galore and some pinwheels. No notable loose snow avalanches observed.

Weather

Air Temp
30
Cloud Cover
few
Wind Loading
none
Recent Snowfall
0
Snow Avail For Transport
moderate amounts

Bright sunny day above the inversion. Stratus deck loomed at ~4500' all day. The air temp remained just below freezing all day, however the calm winds allowed the sun to wreak havoc. approximately 5-10mph winds out of the south on ridge top. No breeze felt on windward slopes below ridge top. A trace amount of very light snowfall below the inversion in the early morning.

Snowpack

• Did not dig a pit today or conduct stability tests. Structure for this area was documented by FAC yesterday. • Notable changes since yesterday, was the moist surface snow on southerlies, and the fresh crop of surface hoar forming on polar slopes. Most of the surface hoar I observed is still pretty small, with the largest grains being 4mm. • Handpits mid-day revealed that the upper 4-6 inches was moist on southerlies at middle elevations up to my highpoint (6400').