National Snowfall Analysis

• The National Snowfall Analysis, version 2, estimates snowfall in the recent past by gathering several operational data sets into a unified analysis.
• The 24, 48, and 72 hour accumulations can also be browsed on an interactive map.
• The climatological snowfall to liquid equivalent ratio (SLR) data used to generate the snowfall background (first guess) are available here.
• These products are prototype data, and are offered here as a snapshot of our investigation and development of a routine snowfall analysis technique. The data shown on this page represent the second development stage, following version 1. For more information, refer to Updated NWS Technical Implementation Notice 15-05.
• Transition of this analysis to an experimental product and towards future operations in accordance with NWSI 10-102 will be conducted in coordination with the Winter Weather Program

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