The 1974 outbreak was not a single tornado but series of 148 tornadoes.
It is famous because it was the most intense as well as one of the deadliest and until recently the biggest of all tornado outbreaks on record.
That title goes to the Super Outbreak of April 3-4 1974, with a total of 30 violent tornadoes. Officially, 7 tornadoes were rated F5 and 23 rated F4.
The of April 25-28 2011. There were over 350 tornadoes in the whole outbreak with 207 in a 24 hour period on April 27.
It is difficult to determine, as until the 1990s we did not have an accurate count of weak tornadoes. The largest number of recorded weak tornadoes tornadoes in an outbreak would probably go to the Super Outbreak of April 25-28, 2011 with 264 tornadoes rated as weak. This outbreak also holds the record for most tornadoes overall at 349.
April 3, 1974 held the majority of the Super Outbreak, which was until recently the largest single-day tornado outbreak in U.S. history. In a 15 hour period starting April 3, and continuing into early April 4 13 U.S. states and 1 Canadian province were hit by 148 tornadoes that killed over 300 people. This outbreak also holds the record for the most F5 tornadoes in a day (6), and for combined F4 and F5 tornadoes (30). This outbreak, now ranks second for number of tornadoes in a 24-hour period, as an estimated 208 tornadoes touched down on April 27, 2011.
The most tornadoes recorded in a single outbreak is 219 on April 27, 2011, during the Super Outbreak in the United States. This outbreak affected several states in the southern and eastern U.S., resulting in widespread devastation and loss of life.
There are different ways of assessing this as "worst" is subjective.The deadliest outbreak in U.S. history was the on which produced the Tri-State tornado of March 18, 1925. In all, this outbreak killed 747 people, including 695 from a single tornado. There are record of 9 tornadoes in this outbreak, but it is likely that many others were not reported.The most intense outbreak on record in terms of the number of violent tornadoes was the Super Outbreak of April 3-4, 1974. There were 148 officially documented tornadoes with this outbreak. Of these, an astonishing 24 were rated F4 and 6 were rated F5. It is one of only two outbreaks to have produced more than two F5 or EF5 tornadoes. In all, 319 people were killed. This outbreak also held the title of most tornadoes within 24 hours until 2011.The costliest outbreak in terms of property damage was the Super Outbreak of April 25-28, 2011. It was also the largest tornado outbreak ever recorded. The cost of damage amounted to about $5 billion. Most of the damage was on April 27. In all the outbreak produced 351 tornadoes, of which 207 were on April 27, the current holder for the 24-hour record. Of these tornadoes, 11 were rated EF4 and 4 were rated EF5. The outbreak killed 324 people.
There have been two events that have been called a "Super Outbreak." For Decades Super Outbreak referred only to the devastating outbreak of April 3-4, 1974. This outbreak was, at the time, the largest tornado outbreak ever recorded, producing 148 tornadoes in 18 hours. Tornadoes occurred across a large area stretching from Ontario to Alabama. To this day it stands as the most violent outbreak on record with 23 tornadoes rated F4 and 7 Rated F5. Several tornadoes killed 20 or more people each in area of Ohio, Kentucky, and Alabama. The deadliest tornado of this outbreak hit Xenia, Ohio, killing 32 people. Major killer tornadoes also hit Brandenburg, Kentucky (31 dead); Tanner, Alabama (28 dead); and Guin, Alabama (28 dead). In all the tornadoes of this outbreak killed 319 people. More recent was the Super Outbreak of April 25-28, 2011. It stands as the largest tornado outbreak ever recorded, having produced 351 tornadoes in just over 3 days. It also holds the record for most tornadoes in 24 hours, with 208 tornadoes touching down on April 27, the worst day of the outbreak. It is also one of the most violent outbreaks on record, with 11 tornadoes rated EF4 and 4 rated EF5, all on April 27. This marks only the second time in history that more than two F5 or EF5 tornadoes struck on the same day. While the range of the outbreak was similar to that of the 1974 Super Outbreak, all of the violent tornadoes were limited to the southern states, with Alabama suffering the worst damage. This outbreak distinguishes itself from the 1974 event with two tornadoes with extremely high death tolls. A long-track EF5 tornado killed 72 people across numerous towns in northern, Alabama, the deadliest single tornado in state history. Another tornado, rated EF4 killed 64 people in Tuscaloosa and Birmingham in central Alabama, the state's second deadliest tornado. Other major killer tornadoes hit Rainsville, Alabama (25 dead); Smithville, Mississippi (23 dead); Ohatchee, Alabama (22 dead); and Ringgold, Georgia (20 dead). In all the tornadoes of this outbreak killed 324 people.
The year with the most violent tornadoes on record was 1974, with a total of 36 tornadoes rated as violent.
Xenia, Ohio has experienced multiple tornadoes throughout its history, with some notable events occurring in 1974, 1989, and 2000. The most significant tornado outbreak in Xenia occurred on April 3, 1974, when an F5 tornado devastated the town.
One of the famous thunderstorms took place in Moore , Oklama may, 3.
because 148 tornadoes touchdown in less than 24 hours, making it the most intense tornado outbreak ever recorded.
The Super Outbreak, which occurred from April 3 to April 4, 1974, lasted approximately 18 hours. It involved a series of tornadoes that struck several states in the central and eastern United States, resulting in significant destruction and numerous fatalities. This outbreak is one of the largest and most intense tornado events in U.S. history.