Peak tornado season is often April or May, but that’s not always the case
May is by far the favorite in total counts. April leads for strong tornadoes.
Category: Tornado Maps
May 3-4, 1999 tornado outbreak and the Bridge Creek-Moore F5
It was the biggest tornado event in modern Oklahoma history.
The most tornadoes in a calendar day by state
All states have had a big tornado day, and many have come in recent decades.
Rethinking how we conceptualize tornado days
Simple ways of defining tornado days leave a lot to be desired.
A look at tornadoes by rating (maps)
Examining tornadoes by a 0-5 ranking offers some clues to their patterns.
An overview of the modern tornado record, 1950 through present (maps)
Here's a concise look at the official tornado record.
A look at all the tornado warnings since 2008 (maps)
Tornado warnings outpace tornadoes by about 2.5 to 1. But where are they most common year-to-year?
The largest tornado outbreaks of 2017
Events throughout the course of the year that feature 20 or more confirmed tornadoes.
The calendar days with the most and fewest tornadoes
With more than 65 years of tornado records, we have a good idea of when activity is most and least…
Tracking the tornadoes of 2016 (this project has been discontinued)
Getting a true sense of the current year's tornado activity has typically been something of an educated guessing game. We're…
Annual and monthly tornado averages for each state (maps)
When it comes to tornadoes throughout the year, it's usually a matter of how many occur and where they happen.…
The strongest tornadoes of 2016
EF3+ tornadoes, often referred to as "intense," make up less than 5 percent of all twisters in the United States.…