![]() ![]() NOAA Research is working to increase tornado warning lead-times much further. ![]() The current average lead-time for tornado warnings is 13 minutes. How much advance warning can forecasters give us before a tornado strikes? The area that has the most strong and violent tornadoes includes eastern South Dakota, Nebraska, Kansas, Oklahoma, northern Texas, and eastern Colorado. Tornado Alley is a nickname for an area that has more tornadoes than other parts of the U.S. They also occur in many other parts of the world, including Australia, Europe, Africa, Asia, and South America. Tornadoes can occur whenever and wherever conditions are right! Tornadoes can occur in every state in the United States, on any day of the year, and at any hour. A tornado is a narrow, violently rotating column of air that extends from the base of a thunderstorm to the ground. ![]()
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