Close

Professional Observation

       

Basic Information

Observation Details

Observation Date:
January 22, 2023
Submitted:
January 22, 2023
Observer:
Geoff Unger | Key Observer
Zone or Region:
Mammoth Lakes
Location:
Sherwin Ridge

Signs of Unstable Snow

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

Key Points

The day dawned warm and just got colder as things went along. Winds shifting to the East and North probably accelerated this trend.  On the Sherwin Ridge at 10,000 feet the wind was Light gusting Moderate though no snow was being transported.

Surface conditions were variable on the main face of the Sherwins with more wind board and breakable crust than soft snow on the upper half.  The conditions improved on the lower half of the face especially with less exposure to the wind.

 

Media

Advanced Information

Weather Summary

Cloud Cover:
Mostly Cloudy
Temperature:
-9.0 degrees C
Wind:
Light , NE

Field Weather Observation

Location

Sherwin Ridge

Time

1145

Elevation

9800

Aspect

N

Sky

SCT

Tair/Tsurf/T20

-9.0/-7.5/-8.0

Precipitation Type/Rate

NO

Wind

L->NE G M

Blow Snow

None

Surface Form/Size

RGwp

HST

0

HS

0-320+

Pen Boot/Pen Ski

5cm/0cm

Comments

Crisp to cold with wind chill

Close