Forecast for the Abajos Area Mountains

Eric Trenbeath
Issued by Eric Trenbeath for
Monday, March 7, 2022
The avalanche danger is CONSIDERABLE on steep, wind drifted slopes facing the north side of the compass, and human triggered avalanches 1'-2' deep, failing on a buried persistent weak layer of sugary, faceted snow are likely. A MODERATE avalanche danger as you wrap around to slopes facing W. Most S facing terrain has generally LOW danger.
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Weather and Snow
Camp Jackson and Buckboard SNOTEL sites are reporting 5"-7" of new snow since Friday night and this could translate to as much as 8"-10" up high. Today, look for mostly cloudy skies and a chance for snow showers as a mid level low pressure system moves through the region. Westerly winds will be light and high temps will be in the upper teens. We'll see a break on Tuesday, with sunny skies and warmer temps before yet another system moves through Wed-Thu followed by a clear and dry weekend. The mid week storm doesn't look real promising, but long range model runs show precipitation kicking in again next week.
Snow totals and temps at Buckboard SNOTEL (8924')
Snow totals and temps at Camp Jackson SNOTEL (8858')
Snowpack
It's not been a huge load of new snow but with the fragile nature of the underlying snowpack, it has been enough for a return to dangerous conditions and human triggered avalanches, 1'-2' are likely. Matt Cozart confirmed as much in his travels yesterday where he experienced collapsing and whumphing, red flag signs of instability. The problem is a buried persistent weak layer of loose, sugary, faceted snow that formed during the extended period of high pressure in Jan-Feb. Starting last week, this weak layer has been getting buried and a slab 1'-2' deep exists on top. New and wind drifted snow has added more stress to this weak layer and all that is needed is a trigger. This problem exists primarily on slopes facing W-N-NE-E with possible outlying problems on upper elevevation slopes facing SE.
Avalanche Problem #1
Persistent Weak Layer
Type
Location
Likelihood
Size
Description
A persistent weak layer of sugary, faceted snow sits beneath a slab 1'-2' thick. New and wind drifted snow now sits on top of this slab adding more stress to the buried weak layer. Human triggered avalanches failing on this weak layer are likely, primarily on steep slopes facing NW-N-NE-E but W facing slopes are also suspect.
This video was shot in the La Sals on Saturday, March 5. The Abajos don't have as much snow on top, but they do have the weak, faceted layer underneath.
Avalanche Problem #2
Wind Drifted Snow
Type
Location
Likelihood
Size
Description
Blowing and drifting snow has caused the danger to increase. Unstable, fresh drifts have formed on the leeward sides of ridge crests and terrain features. Drifts are recognizable by their smooth, rounded appearance and cracking is a sign of instability. Fresh drifts have also added more stress to the buried persistent weak layer on northerly facing slopes increasing the odds for a deeper and more dangerous avalanche.
General Announcements
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This forecast is from the U.S. Forest Service, which is solely responsible for its content. This forecast describes general avalanche conditions and local variations always occur.