In all likelihood they are not. The main factor in this is improved detection. We are now recording many of the F0 and F1 tornadoes that would have been missed 50 years ago. Additionally, the more active years tend to be more memorable while we tend to forget the quiter ones.
If six or more tornadoes form in one day from the same storm system it is called a tornado outbreak. A tornado outbreak can last anywhere from a few hours to a few days.
Tornadoes are often referred to simply as "tornadoes" or "twisters."
Tennessee averages about 30 tornadoes per year.
Tornadoes are storms, and thus naturally occurring.
On average, there are about 1,000 tornadoes reported in the United States each year. However, the frequency of tornadoes can vary depending on the region and the time of year. Areas known as "Tornado Alley" in the central United States typically experience more frequent tornado activity.
If six or more tornadoes form in one day from the same storm system it is called a tornado outbreak. A tornado outbreak can last anywhere from a few hours to a few days.
Currently, on November 24, 2010 there are no tornadoes occurring.
While it may appear that multiple tornadoes are merging into each other, it is more likely that they are separate tornadoes occurring in close proximity. Tornadoes can interact with each other, but they do not typically combine or merge into a single, larger tornado.
The U.S. gets more tornadoes than any other country.
The number of tornadoes that occur in a day varies greatly. This is largely because many tornadoes occur in outbreaks, events where a weather system produces multiple tornadoes over the course of a few hours to a few days. During a major outbreak it is possible for there to be several dozen tornadoes in a single day. On days between outbreaks there may be a handful of isolated tornadoes or none at all. Overall tornado activity also varies seasonally, with tornadoes occurring more often in the warmer months.
It would be impossible to list all tornadoes. Since official record keeping began in 1950 there have been over 56,000 tornadoes in the United States alone with thousands more occurring in other countries or going undocumented.
Tornadoes do not happen as frequently during winter or fall, with the lowest activity (at least in the U.S.) occurring in January and December. They mostly occur during the spring and summertime of April, May, and June.
Wikianswers cannot give real-time information on where tornadoes are. Most tornadoes last no more than a few minutes, so even if there were a tornado occurring as these words are typed it will probably have dissipated before anyone reads them. The chances that there is a tornado occurring somewhere at any given moment are rather small. For real-time information on weather events in the United States go to the website of the National Weather Service.
occurring, found, or done often
Tornadoes can occur at any time of year. A few tornadoes will happen in January almost every year, with some tornadoes occurring as early as January 1.
It is impossible to say; tornadoes have been occurring there since before anyone was around to record them. It is likely they have been occurring there since the land that would become Washington first formed.
They are called funnel clouds or, more often, twisters.