National Gridded Snowfall Analysis

The National Gridded Snowfall Analysis estimates snowfall in the recent past by gathering several operational data sets into a unified analysis. Snowfall observations are provided by numerous observing networks, including ASOS, COOP, CoCoRaHS, FAA, NWS spotters, and others.

• The 24, 48, and 72 hour accumulations can also be browsed on an interactive map. (Look under the "Select Physical Element" dropdown for "SF Analysis" items.)
• The climatological snowfall to liquid equivalent ratio (SLR) data used to generate the snowfall background (first guess) are available here.
• For more information on the National Gridded Snowfall Analysis, see the Product Description Document (PDD).
• For product questions, contact . For technical questions, contact .

National Weather Service National Operational Hydrologic Remote Sensing Center Office of Water Prediction 1735 Lake Drive W. Chanhassen, MN 55317
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