A Tornado is a narrow, violently rotating column of air that extends from the base of a thunderstorm to the ground and is visible only if it forms a condensation funnel made up of water droplets, dust, and debris.

Explore tornado paths on an interactive map using ArcGIS.

Explore the National Risk Index dataset with the interactive map and data exploration tools. Discover your community's natural hazard risk, compare it to other communities, and create reports.

A diagram of tornado alley based on 1 tornado or more per decade. Rough location (red), and its contributing weather systems. Tornado Alley, also known as Tornado Valley, is a loosely defined location of the central United States and Canada where tornadoes are most frequent. [1]

A map of all tornado (red), hail (green), and thunderstorm wind gust (blue) reports from NWS offices in 2023. Monthly Tornadoes by State (Click on the maps to go to the maps page.)

Tornado tracker shows you the location of nearby tornadoes. The colors of the tornado radar tell you the strength of the tornado. The bigger and stronger the tornado is, the redder it appears on the tornado radar. The shape of the tornado on the radar gives information about its direction.

Explore interactive maps and data visualizations with ArcGIS Web Application.

Tornadoes FEMA GIS supports the emergency management community with world-class geospatial information, services, and technologies to prepare for, protect against, respond to, recover from and mitigate against all hazards.

2024年1月31日 · Tornado track map Web Map by AlexZeggert. Last Modified: January 31, 2024 (0 ratings, 0 comments, 543 views) More Details...

The National Risk Index Annualized Frequency Tornado feature layer includes annualized frequency data for Tornadoes at the county and Census tract level. The data are a subset of the National Risk Index, a dataset and online tool that helps to illustrate the communities most at risk for 18 natural hazards across the United States and territories.