There were 15,701 tornadoes in the U.S. in the years 2000-2011 with a preliminary count of 919 so far in 2012, bringing the total to 16,620. So far 2012 has probably had more tornadoes than the preliminary count indicates. So that figure will probably rise as some reports of minor tornadoes file in late.
Tornado Alley doesn't change from year to year, it always covers the same states of Texas, Oklahoma, Kansas, Nebraska, South Dakota, and Iowa.
However, this year much of the tornado activity has been outside of this region. So far this year 35 states have had tornadoes with 13 of those experiencing killer tornadoes. Worst hit have been Alabama, Missouri, and Tennessee.
The number of tornadoes in Ohio differs from year to year and from one part of Ohio to another. The western portion of Ohio is considered part of "Tornado Alley" which extends across the central United States, while northeastern Ohio rarely experiences twisters. The link below provides detailed statistics.
The National Weather Service estimates as many as 881 tornadoes have occurred so far this year in the U.S. A record number.
As of April 13 there have been there have been at least 280 confirmed tornadoes in the U.S. in 2012. Several tornado reports on April 13 are still pending confirmation.
As of June 12, 2013 there is a preliminary count of 41 tornadoes in northern Texas this year.
over a 1000
So far the year 2004 has had the most confirmed tornadoes in the U.S. at 1,817.
Based on a preliminary count have been 36 tornadoes officially confirmed in Oklahoma so far this year as of May 31. However, there have been numerous reports of tornadoes on May 30 and 31 that have yet to be surveyed and confirmed, and the actual number of tornadoes from these days is not known.
It is not known what the upper limit is, though the record so far for a year is 1817 in the U.S. in 2004. Worldwide statistics are not known as many countries do not keep records of tornadoes.
Based on preliminary finindings, there have been 10 confirmed tornadoes in Ohio in 2014 as of July 9.
worldwide data is not available. Since 2000 there have been 16,818 recorded tornadoes in the U.S. Note that the figure for tornadoes so far in 2013 is only a preliminary estimate.
Yes. The U.S. has recorded over 1100 tornadoes so far in 2011. More tornadoes have occurred in other parts of the world.
Preliminary estimates show that there have been 1286 tornadoes so far in the U.S., though the actual number is probably lower. More tornadoes will probably occur before the end of the year.
Michigan averages around 13 tornadoes each year.
According to my research there has been so far 80 tornadoes that have hit Hawaii.
The greatest number of tornadoes recorded so far from a single hurricane is 117.
As of June 16 there is a preliminary count of 55 tornadoes in Oklahoma in 2013.
So far tornadoes have killed 80 people worldwide including 68 in the U.S.