Back Arrow

SNODAS SWE Percent of Normal

SNODAS SWE Percent of Normal

Snow Water Equivalent (SWE) percent of normal for April 1, 2023 in the sierra, California. This was a massive snow year.

Tech & Sources

GDAL, PostgreSQL/PostGIS, MapServer, Apache

Bash, SQL

Data Sources (one or more):
U.S. Geological Survey (USGS), U.S. Forest Service (USFS), National Elevation Data (NED), National Land Cover Data(NLCD), National Hydrography Data (NHD), Tiger/Line Census, 3D Elevation Program (3DEP), Geographic Names Information Service (GNIS), Open Street Map (OSM), Protected Areas Database v2.1 (PAD), National Interagency Fire Center (NIFC), National Weather Service (NWS), NASA, NOAA, National Wildfire Coordinating Group (NWCG),, U.S. Department of Interior (DOI), National Digital Forecast Database (NDFD), European Space Agency (ESA),, ESRI, Google, Continental Divide Trail Coalition, Appalachian Trail Conservancy (ATC), National Snow and Ice Data Center (NSIDC), PRISM Climate Data Oregon State University, et al, and data collected in the field (trail trace)


The following uses a 'mean' raster created from SNODAS rasters Nov 2003 to present. The current date SNODAS raster and mean raster are used to determine the percent of average using

WMS Resource:
   &format=image/png © 2005-2024 - W3C - @postholer