Image description: this animated gif shows the annual cycle of severe weather threats based on data gathered by the National Weather Services from 1985 to 1989. Each of its 52 frames shows the probability of a severe storm occurring within 25 miles of any point for that week. More info about this image and the data used to create it.
It’s tornado season. Tornadoes are nature’s most violent storms and they can be deadly. Learn how to prepare for tornadoes and what to do when one strikes at ready.gov/tornadoes.