As of November 9, 2012 the last large tornado to hit the U.S. occurred northwest of the town of Newton, Mississippi. The tornado was rated EF3 and got up to half a mile wide.
Scientists are still not sure how exactly a thunderstorm produces a tornado or why one storm will produce a tornado while another won't. They are still not sure what determines how strong or how large a tornado will be or how long it will last.
As of May 25, 2012 the last tornado in Georgia was on March 3.
The last tornado to hit Gulfport, Mississippi was an EF1 on August 29, 2012. The tornado was spawned by Hurricane Isaac.
The last confirmed tornado was in Texas on September 17, 2011. It was rated EF0
As of May 8, 2012 the last confirmed tornado was in eastern Illinois on May 6.
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The last F5 or EF5 tornado in Iowa was on May 25, 2008 when a large tornado caused EF5 damage in the towns of Parkersburg and New Hartford, Iowa.
Yes. Tornado Alley is a region in the US with very high tornado activity. It takes up a large portion of the Great Plains.
In 2011 there were 552 tornado fatalities in the United States, tying it as the second deadliest tornado year in U.S. history.
The most recent large tornadoes in the United States, as of October 28, 2013, occurred on October 4. Several large tornadoes touched down across parts of Nebraska and Iowa.
As of November 23, 2015 the last fatal tornado in the US killed one person near Cameron, Texas on May 25. It was rated EF2.
The last tornadoes in the US in 2014 struck southeastern Texas on December 27.
The last tornado to hit Seattle was in 1971.
Scientists are still not sure how exactly a thunderstorm produces a tornado or why one storm will produce a tornado while another won't. They are still not sure what determines how strong or how large a tornado will be or how long it will last.
As of August 24, 2013 the most recent tornado in the United States, which ocurred on August 18, did not result in any deaths. This is not surprising, as 98% of tornadoes in the US are not killers. The last killer tornado in the US was an EF1 in Iowa on June 24, which killed 1 person.
As of January 17, 2013 the last tornado in the U.S. was an EF1 near Poplarville, Mississippi on January 13. It was one of four weak tornadoes to occur in the southern U.s. that day.
Generally large tornadoes are stronger but that is not always the case.