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Professional Observation

       

Basic Information

Observation Details

Observation Date:
February 4, 2023
Submitted:
February 4, 2023
Observer:
Geoff Unger | Key Observer
Zone or Region:
Mammoth Lakes
Location:
Mammoth Lakes Basin Weather and Surface Snow Observation

Signs of Unstable Snow

Recent Avalanches? 
None Observed
Cracking? 
None Experienced
Collapsing? 
None Experienced

Snow Stability

Stability Rating: 
Good
Confidence in Rating: 
High
Stability Trend: 
Steady

Key Points

This week has been a lot of wind with little wind slab formation.   The wind at low and mid elevations was strong enough for transport, but the actual transportable snow was limited.

More significant was looking at surface conditions in front of the inbound storm.  Surface facets and other relatively weak layers near the current surface snow may accentuate any new snow instabilities.

See photos for a series of relevant wind transport and other surface observations from today.

Media

Advanced Information

Weather Summary

Location

Lake Mary

Time

1215

Elevation

9400

Aspect

NE

Sky

-OVC

Tair/Tsurf/T20

0 degrees C

Precipitation Type/Rate

NO

Wind

L-SW gusting M

Blow Snow

Prev

Surface Form/Size

FC 0.5mm

HST

0cm

HS

320+

Pen Boot/Pen Ski

10cm/3cm

Comments

Some drifting possible in this location.

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