Sonora

Location Name: 
Sardine Meadow
Region: 
BWRA
Date and time of observation: 
Sat, 03/02/2019 - 12:00
Location Map: 


Red Flags: 
Recent avalanche activity
Recent loading by new snow, wind, or rain

Observation made by: Public
Snowpit Observations
More detailed information about the snowpack: 

Route today was from the People's Gate up to Sardine Meadow and back.  We attempted to head higher up the road but poor visibility turned us around about a mile past Sardine Meadow.  

Snow levels were below 6500' on our drive to the trailhead at 10am with rates varying from S2 to S5 and increasing as we made our way up the road.  HNS at the People's Gate was 7in @ 10am.  High density snow at the trailhead transitioned to medium density snow above 8K.   

There was wet activity in the form of pinwheels mainly below 8K.  It seemed like it would've been easy to initiate some point release style wet avalanches in 40+ degree terrain.  As we gained elevation up the road we observed numerous R1 D1 storm slab avalanches.  They all appeared to be about 4in deep, failing at an interface within the new snow.  They were all confined to steep (40+ degree), convex terrain features and none propagated more than about 20' wide.  

The sledding was great with 1-2ft of hero snow sitting on a supportable base.  I didn't experience any cracking within the new snow, however we spent the day entirely in flat or low angle terrain.  

Upon returning to the trailhead around 2pm snow levels had risen to about 7500' with rain below.  

Weather Observations
Blowing Snow: 
No
Cloud Cover: 
100% of the sky covered by clouds
Air temperature: 
Below Freezing
Wind Speed: 
Light
Precipitation: 
Snow
Air temperature trend: 
Warming
Wind Direction: 
Accumulation rate: 
Greater than 1 in. per hour
More detailed information about the weather: 

Calm to light winds below treeline throughout our field day.  I did not observe any notable wind transport, howevery visibility was limited to .5 miles or less.   Snowfall rates varied from S2 to S5 throughout the day.