Although the official boundaries of Tornado Alley are not clearly defined, its core extends from northern Texas, Louisiana, Oklahoma, Kansas, Nebraska, Iowa along with South Dakota. Minnesota, Wisconsin, Illinois, Indiana, and western Ohio are sometimes included in Tornado Alley.
Oklahoma's 146 tornadoes in 2019 are the most on record, but twisters may have been under-counted in the past
- A tornado briefly emerges out of the rain on a murky day in eastern Oklahoma on May 22. (
- A tornado strikes east of Moorefield, Neb., on May 17. (
Although the official boundaries of Tornado Alley are not clearly defined, the main alley extends from northern Texas, through Oklahoma, Kansas, Colorado, Nebraska, Missouri, Iowa, South Dakota, and North Dakota. States such as Minnesota, Wisconsin, Illinois, Indiana, and Ohio are sometimes included in Tornado Alley.
The tornado that struck the city of Xenia, Ohio stands as the deadliest individual tornado of the 1974 Super Outbreak, killing 32 people and destroying a significant portion of the town. The tornado formed near Bellbrook, Ohio, southwest of Xenia, at about 4:30 pm EDT.
Texas and Kansas average the most tornadoes each year.
The recent tornadoes that caused destruction across the Dayton region could be part of an eastward shifting 'Tornado Alley' into the Midwest and Southeast, including Ohio, experts say. Meanwhile Texas, Oklahoma and the Great Plains are seeing a declining number of twisters.
Tornadoes do not hit big cities." MYTH. Tornadoes hit large metropolitan areas with a high relative frequency. Tornadoes are not diverted by any structure or terrain. Tornado strikes on large cities seem less common only because there are few cities relative to the size of the rural areas in the U.S.
Ohio Tornadoes 1950-2012.
The last large storm to hit Dayton came in 2008, when Hurricane Ike knocked the city into a blackout for about a week. But in that case, its water supply was not affected, officials said Tuesday.
Tornado outbreak sequence of May 2019
| Part of the Tornadoes of 2019 |
|---|
| Map of tornado warnings and confirmed tornadoes from the outbreak |
|---|
| Highest winds | Tornadic – 170 mph (270 km/h) in Dayton, Ohio on May 27; and 187+ mph in Linwood, Kansas on May 28 Non-tornadic – 94 mph (151 km/h) near Marshall, Oklahoma on May 20 |
The western half of Ohio, including Toledo, Columbus, Cincinnati and Dayton, has a two percent chance of a tornado. Again, this percent chance sounds low. However, remember that the historical chance of a tornado on any March day is around one-tenth of one percent.
At a Glance. April, May and June are the peak months for tornadoes in the United States. Intense tornadoes are more likely to occur during the spring.
While there exists no area completely risk-free from potential disasters, some regions have a lower probability and risk factor than others for certain types of disasters. Ohio is at risk for these natural occurrences, just not to the same degree as some of its neighbors.
Ohio's tornado season is defined as April through June. Spring Severe Weather Awareness Week in Ohio is March 22-28, with a statewide tornado drill set for 9:50 a.m. on March 25. According to the state of Ohio, 2019 had more tornadoes than in recent years, at 49.
While tornadoes can occur at any time of the year, Ohio's peak tornado season is April through July. There were 39 confirmed tornadoes in Ohio in 2017, with a tornado outbreak Nov. 5, resulting in 17 tornadoes in Ohio alone, according to state data.
While tornadoes can occur at any time of the year, Ohio's peak tornado season is April through July. There were 39 confirmed tornadoes in Ohio in 2017, with a tornado outbreak Nov. 5, resulting in 17 tornadoes in Ohio alone, according to state data.
More than 2-million Ohio residents lost power, and the disaster led to $1.255 billion in insured losses. Hurricane Ike first wreaked havoc on the Gulf Coast states of Texas and Louisiana when it made landfall on September 13, 2008. The Category 2 hurricane remnants then moved north to Ohio.
The tornado that struck the city of Xenia, Ohio stands as the deadliest individual tornado of the 1974 Super Outbreak, killing 32 people and destroying a significant portion of the town. The tornado formed near Bellbrook, Ohio, southwest of Xenia, at about 4:30 pm EDT.
Ohio's most common natural disasters include severe storms, floods, tornadoes, winter storms, landslides, and power outages. Other disasters that are less common are wildfires, extreme heat, and tropical storms.
Ohio has recorded at least 200 earthquakes above 2.0 magnitude since the earliest record in 1776. Most of these events have been small, in the 2 to 3 magnitude range, but at least 15 earthquakes centered in the state have caused damage.
Tornadoes have occurred within Ohio during every month, but about seven out of 10 Ohio tornadoes occur between April 1 and July 31. Nearly three of four Ohio tornadoes touch ground between 2 and 10 PM Eastern Standard Time; however, tornadoes may occur at any time of day or night.
According to the National Weather Service and the Insurance Information Institute, the top 10 states with most tornadoes in 2018 were:
- Mississippi: 68.
- Illinois: 64.
- Alabama: 52.
- Texas: 52.
- Florida: 48.
- Missouri: 48.
- Kansas: 45.
- Kentucky: 41.
Tornado Alley can also be defined as an area reaching from central Texas to the Canadian prairies and from eastern Colorado to western Pennsylvania. A 2018 study found in the U.S., over the study period 1979-2017, an overall eastward shift of tornado frequency and impacts - toward Dixie Alley.
The land in the Great Plains is relatively flat, which allows cold dry polar air from Canada to meet warm moist tropical air from the Gulf of Mexico. It's along the front between the two airmasses that most tornadoes form. Most tornadoes in the United States form in an area called "Tornado Alley".
Yes. Since 1950, counties with 35 or more tornadoes are mostly clustered along Interstate 30 and U.S. Highway 67/167. This includes areas from Arkadelphia (Clark County) to Little Rock (Pulaski County) and Jonesboro (Craighead County). Tornado deaths are highest in this part of the state as well.
- United States. At well north of 1,200 tornadoes annually most years, the US by far has the most tornadoes in the world.
- Canada. While Canada is larger than the United States in terms of land area, it only has a tenth of the number of tornadoes that the US has.
- England.
- New Zealand.
- Japan.
- Australia.
- India.
- Bangladesh.
Counting Irma, Florida has now sustained 117 direct hits by hurricanes in recorded history -- far more than any other US state, according to NOAA. That's almost twice as many major storms as have hit the runner-up, Texas. Louisiana is third in hurricane landfalls, followed by North Carolina and South Carolina.
Tornadoes occur when a mass of cold air collides with warm and moist air causing the warm air to rise rapidly. The air is hottest in the late afternoon which just makes a higher temperature differential and higher energy potential. That's why the strong storms happen then.
