Storm tracker Beta
Snowpack, layer by layer
Every storm this season drawn as a layer in the snowpack, the way it would look on the wall of a snow pit.
This page is a summary. Read the source:
Season snow depth
Drag to dig the pit on any day of the season.
- 1Each band is one storm
Newest on top. The first snow of the season sits on the ground and is marked Base.
- 2Width and grain show density
A wider band with tighter grain is snow that has packed down. Pale is light powder as it fell, deep green is dense.
- 3A line is a surface that sat out
Gold means a possible crust. Dotted red means a long dry spell, when a weak layer could have formed.
Storm log
Sources
- California Data Exchange Center (CDEC)Daily snow water, depth and temperature: Mammoth Pass, Rock Creek Lakes, Dana Meadows, South Lake
- USDA NRCS Snow Survey (SNOTEL)The same daily readings: Virginia Lakes Ridge, Leavitt Lake
- National Weather ServiceThe incoming-storm forecast, and wind recorded at Mammoth Mountain summit
- Eastern Sierra and Bridgeport Avalanche Centers, via avalanche.orgThe forecast quoted beside the layers
* Layer boundaries, thickness, density, the base call and every "possible" surface are estimated by this page from the readings above. Where a depth sensor under-reads, snowfall is estimated from water and marked "about".
Questions and corrections · 0