Observation: Public

Observation Details

Signs of Unstable Snow

Observations

A fair amount of recent snowfall near Granite Lakes seems to have deposited around 8"~16" of snow up high in wind sheltered areas around Thompson Point and Revolution Peak. I was booting today (not snowshoeing) and my feet were sinking down 16" on the approach to Thompson Point (near treeline). Did not observe any noticeable instabilities on the mountain, but I didn't look too closely today given the terrain breaks (trees, vegetation) would have blocked large slides and many of the slopes I was on were well under 35°.

Some of the ridges in non-leeward areas had hard wind crusts and there were some cornices starting to form up on Revolution Peak's summit from recent S-SE winds.

Temps were extremely low along the ridge line with wind chill (anecdotally down in the 20s), and were higher gusts than forecast by NOAA (<5mph sustained; 15mph gusts) in the afternoon. The wind died down around 16:45 when I got back to Thompson Point. Visibility was 100% obscured all day with fog in the evening. Snow below treeline was a mix of heavy powder and slush below 3k' due to heavy rain showers in the evening.