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Winter Storm Severity Index
 
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EXPERIMENTAL PRODUCT

Feedback from this experimental product will be used to evaluate product development. The purpose of the Winter Storm Severity Index (WSSI) is to provide NWS partners and the general public with an indication of the level of winter precipitation (snow and ice) severity and its potential related societal impacts. The WSSI does not depict official warnings, and should always be used in context with official NWS forecasts and warnings. Because this is an experimental product, it may not update in a timely fashion. Always check the creation and valid times. For more information, please refer to the following links: Product/Service Description Document, WSSI Users Guide.


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Click legend for a detailed description of severity levels