Lake George Ridge Snow Profile

Lakes Basin Observation
Submission Info
Thursday, February 27, 2020 - 1:15pm
Red Flags: 
Lake George Ridge 37° 36' 12.492" N, 119° 0' 56.1492" W
Snowpit Observations
More detailed information about the snowpack: 

Toured out to the Lakes Basin today to do some terrain analysis exercise with the AIARE Pro 1 Avalanche Course that is in town this week.  Part of the course is taking observations to the SWAG standard for sharing information within the operation and more broadly.

The surface is warming at lower elevations so surface crusts aren't as firm later in the day, but the warming has not been enough to consistently strong between solar and shaded aspects to make the skiing predictable.  Nor have the cold clear nights been enough to break down the crusts on northerly aspects except in the most sheltered locations where you can avoid tracks and the melt freeze on the surface.  At the moment that mix of criteria is making it difficult to find facet skiing.  On the other hand, skiing in the sun where the Melt Freeze curst is supportable can be pleasant.

For those of us who are committed to this season until the end, we are still looking at snowpack structure beyond skiability.  The surface conditions are intensely variable there is no question about it.  This extends to the snowpack structure underneath.  When(obvious optimism implied) we get new snow the expectation is that uncertainty about the stability of our snowpack will increase dramatically.  For a snapshot of the current structure on a NW Aspect hovering around the treeline zone please see the attached snow profile graph.

Snowpit or crown profile photo or graph: 
Any other comments about the observation or links to outside pages that have more info on the observation: 

Thank you to Josh Feinberg of ESAC for joining us at Mammoth Mountain and presenting a seasonal snowpack history.

Please consider donating to your local avalanche center;

Thank you to Mammoth Mountain Ski Patrol.  Without your support we would not be able to conduct this industry training program.  Special thanks to, Mike, Neil, Q and our local patrol candidates for your dedication to professional development.

Check MMSP on their website for Weather Station and other information;

Weather Observations
Blowing Snow: 
Cloud Cover: 
25% of the sky covered by clouds
Air temperature: 
Above Freezing
Wind Speed: 
Air temperature trend: 
Wind Direction: 
Accumulation rate: 
More detailed information about the weather: 

We had variable and calm to light surface winds in the Lakes Basin today.  The temperatures were mild to very warm depending on sun and shade.  It feels like spring out there.

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