The 10 deadliest U.S. tornadoes on record
updated 12:09 PM EDT, Tue May 21, 2013
The "Tri-State" tornado of 1925 traveled through Missouri, Illinois and Indiana, killing nearly 700 people.
(CNN) -- Here are the 10 deadliest tornadoes to touch down in the United States, according to the National Oceanic and Atmospheric Administration:
1. The "Tri-State Tornado" killed 695 people and injured 2,027, traveling more than 300 miles through Missouri, Illinois and Indiana on March 18, 1925. It was rated an F5 at the top of the old Fujita scale (with winds of 260-plus mph).
2. The "Natchez Tornado" killed 317 people and injured 109 on May 6, 1840, along the Mississippi River in Louisiana and Mississippi. The official death toll may not have included slaves, according to the Federal Emergency Management Agency.
The "St. Louis Tornado" of 1896 killed 255 people in Missouri and Illinois.
3. The "St. Louis Tornado" killed 255 people and injured 1,000 on May 27, 1896, in Missouri and Illinois. It had winds of between 207 mph and 260 mph.
4. The "Tupelo Tornado" killed 216 people and injured 700 on April 5, 1936, in the northeastern Mississippi city.
5. The "Gainesville Tornado" was a pair of storms that converged April 6, 1936, in Gainesville, Georgia, killing 203 people and injuring 1,600. The tornado destroyed four blocks and 750 houses in the northern Georgia town.
6. The "Woodward Tornado" wreaked havoc across parts of Texas, Oklahoma and Kansas on April 9, 1947. The storm, which killed 181 people and injured 970, reportedly was more than a mile wide in places.
A search team looks for possible victims after a tornado hit Joplin, Missouri, in May 2011.
7. The tornado that struck Joplin, Missouri, on May 22, 2011, killed 158 people and injured more than a thousand. The storm packed winds in excess of 200 mph and was on the ground for more than 22 miles.
8. The "Amite/Pine/Purvis Tornado" killed 143 people and injured 770 on April 24, 1908. The storm left only seven houses intact in Purvis, Mississippi, and also caused damage in Amite, Louisiana.
9. The "New Richmond Tornado" killed 117 people and injured 200 on June 12, 1899, in New Richmond, Wisconsin.
10. The "Flint Tornado" killed 115 people and injured 844 on June 8, 1953, in Flint, Michigan. The tornado was the deadliest twister ever recorded in the state.
What you need to know about tornadoes
Part of complete coverage on
Oklahoma City Tornado
updated 2:04 PM EDT, Wed May 22, 2013
Much of Moore, Oklahoma, is now a devastated pile of rubble. Learn how you can help through these groups.
updated 7:14 PM EDT, Fri May 24, 2013
Families share memories and snapshots of those we lost in the Oklahoma tornado devastation.
updated 11:54 AM EDT, Thu May 23, 2013
A rescue worker finds someone trapped under a collapsed home, bringing another bit of happiness to a city that has too little of it.
updated 10:39 AM EDT, Wed May 22, 2013
It's one of the most familiar pieces of advice from authorities to people in the path of a tornado: Get into your basement.
updated 8:43 AM EDT, Thu May 23, 2013
Call it maternal instinct. Terimy Miller put her three sons in a closet in their house. But something didn't feel right. So she put her boys in the family car.
updated 7:55 AM EDT, Thu May 23, 2013
On Sunday, a mystery photograph fluttered from the sky and landed near Leslie Hagelberg's mailbox in West Tulsa, Oklahoma.
updated 7:30 AM EDT, Thu May 23, 2013
Photographer Paul Hellstern snapped his shutter just minutes after the tornado reduced Oklahoma City's Briarwood Elementary School to rubble.
updated 2:31 PM EDT, Wed May 22, 2013
Second-grade teacher Tammy Glasgow walks around what's left of Briarwood Elementary, struggling to pick out of its wreckage the things that once made a school.
updated 9:19 AM EDT, Wed May 22, 2013
It was the end of the school day. The kids at Plaza Towers Elementary School were stuffing their backpacks, looking forward to going home, playing with friends, eating snacks.
updated 6:44 AM EDT, Thu May 23, 2013
Inside Moore Medical Center's emergency room, Dr. Stephanie Barnhart had been monitoring the weather all afternoon.
updated 11:15 AM EDT, Wed May 22, 2013
The governor of Oklahoma, Mary Fallin, says it is "hard to believe" another monster tornado could devastate the Oklahoma City suburb of Moore.
The tornado spanned 1.3 miles -- the length of more than 22 football fields lined up end-to-end -- carved a 17-mile path of destruction.
updated 9:10 AM EDT, Wed May 22, 2013
The massive tornado that devastated communities touched down just five minutes after the first warnings went out.
updated 12:09 PM EDT, Tue May 21, 2013
The "Tri-State Tornado" killed 695 people and injured 2,027, traveling more than 300 miles.
updated 9:30 AM EDT, Wed May 22, 2013
The Oklahoma tornado ranks among the strongest storms ever to strike the United States, packing powerful winds that topped 200 mph.
updated 1:33 PM EDT, Fri May 24, 2013
See the best images from the deadly storm.
See the path of the tornado that ripped through Moore, Oklahoma.