Data Products

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Tornado Climatology

This online resource examines tornado activity across the United States across temporal and spatial scales. The contiguous United States is the most active tornado region in the world, with an average of 1,253 tornadoes occurring annually. The information and data provided here serves as a baseline for comparing current tornado activity to the past, providing a complete historical perspective.

International Best Track Archive for Climate Stewardship (IBTrACS)

NOAA’s IBTrACS system provides tropical cyclone best-track data in one centralized location to aid understanding of the distribution, frequency, and intensity of tropical cyclones worldwide.

Severe Weather Data

This online resource provides links to several NOAA online severe weather databases, including the Storm Events Database and the Severe Weather Data Inventory.  These databases provide online access to files for storm and hurricane data in commonly used formats, such as shapefiles for GIS applications, KMZ for Google Earth, comma-separated values, and extensible markup language (XML).