The exact setup that led to the formation of the tornado was unknown, as at the time we did not closely study the weather and had no idea how tornadoes worked. However, it almost certainly formed under the same basic conditions that other violent tornadoes do. A low-pressure system was likely moving across the eastern portions of the United States, bringing with it the associated fronts. Along the cold front a comparatively cool air mass would have pushed into a warm, moist unstable air mass, triggering thunderstorms. Wind shear then set these storms rotating, turning them into supercells, which can produce tornadoes. One particularly intense supercell then produced a large, violent tornado that hit Natchez and surrounding areas.
The Great Natchez tornado struck the towns of Natchez, Mississippi and Vidalia, Louisiana of May 7, 1840.
The Natchez tornado of 1840 was a supercell tornado, as are nearly all killer tornadoes, and was probably an F5.
Many houses and businesses, docks, and boats in the Natchez area were damaged or destroyed by the 1840 tornado.
The Great Natchez tornado of 1840 killed 317 people, making it the second deadliest tornado in U.S. history.
The 1840 Natchez tornado killed at least 317 people and injured another 109.
Some were the Tri State Tornado, the Natchez tornado , also the Gainesville tornadoes.
We do not know. The Natchez tornado was in 1840, and it is hard to get reliable information from records that old. The tornado itself was probably an F4 or F5, which would put wind speeds in the range of 200 mph or more, but that does not indicate anything about how fast the tornado itself moved.
The Great Natchez tornado was never rated. The Fujita scale, which rates tornadoes, was crated in 1971, but has been used to rate tornadoes retrospectively. To rate a tornado you need information on the severity of the damage it did and the quality of construction of the buildings it hit. Unfortunately, as you look at older records, there is generally less useful information. Because of this, no tornado that occurred before 1871 has received a rating. The Natchez tornado was in 1840. That said, by comparing this tornado with other major killers, it is reasonable to say that it was probably an F4 or F5.
it was the second deadliest single tornado that killed 317 people and tore a whole northern part of a city to shreds
The deadliest tornado in Mississippi was the Natchez, Mississippi tornado of May 6, 1840. It killed 317 people, making it the second deadliest tornado in U.S. history.
Tornado Alley did not occur. It was not an event. Tornado Alley is a region in the central United States.
a tornado can occur at any time of the day or the year