Access Tools
Regional Snowfall Index (RSI) Interactive Map
The Regional Snowfall Index (RSI) interactive map documents significant snowstorms that impact the eastern two thirds of the U.S. The RSI ranks snowstorm impacts on a scale from 1 to 5, similar to the Fujita scale for tornadoes or the Saffir-Simpson scale for hurricanes.
Weather and Climate Data Access
The NCEI Data Access application offers a wide variety of download and subsetting options for a growing collection of environmental data.
Past Weather
Search for recent weather data in your area. Weather forecasts are available through the National Weather Service.