Professional Observation
Basic Information
Observation Details
Observation Date:
December 31, 2022Submitted:
December 31, 2022Observer:
Geoff Unger | Key ObserverZone or Region:
Mammoth LakesLocation:
Mammoth Lakes Basin Snowpack and Weather ObsSigns of Unstable Snow
Recent Avalanches?
None ObservedCracking?
None ExperiencedCollapsing?
None ExperiencedSnow Stability
Stability Rating:
PoorConfidence in Rating:
Stability Trend:
WorseningKey Points
A little tour to stretch the legs and get soaked this morning. We toured from Mill City at the end of Old Mammoth Road and it was snowing hard with moderate winds in sheltered areas. This led to our Gore Tex getting soaked through pretty fast. Long story short the snowpack is getting loaded rapidly from heavy wet snow that is being transported by wind.
Media
Advanced Information
Weather Summary
Cloud Cover:
ObscuredTemperature:
Near to above freezingWind:
Moderate , SW
Here are a few weather observations from different locations.
|
Location |
Mill City |
|
Time |
1100 |
|
Elevation |
8450 |
|
Aspect |
E |
|
Sky |
Obscured |
|
Tair/Tsurf/T20 |
Approximately 32 F |
|
Precipitation Type/Rate |
S2 |
|
Wind |
Moderate -> W |
|
Blow Snow |
Moderate |
|
Surface Form/Size |
PP |
|
Comments |
10cm of new in top of wet grains 2cm thick |
|
Location |
Mammoth Lakes Basin |
|
Time |
1130 |
|
Elevation |
8800 |
|
Aspect |
W |
|
Sky |
Obscurred |
|
Precipitation Type/Rate |
S5 |
|
Wind |
Moderate -> SW |
|
Blow Snow |
Moderate |
|
Surface Form/Size |
PP |
|
Comments |
15cm of new snow from today on top of moist to wet grains |
|
Location |
Pano Dome |
|
Time |
12:30 |
|
Elevation |
8900 |
|
Aspect |
N |
|
Sky |
OBS |
|
Precipitation Type/Rate |
S3 |
|
Wind |
S -> SW gusting X |
|
Blow Snow |
I |
|
Surface Form/Size |
PP |
|
Pen Boot/Pen Ski |
55cm/2cm |