There were no tornadoes in Chicago in 2009.
No. First of all, there seems to be a some confusion here. The Oak lawn tornado outbreak was not a tornado, it was an outbreak of at least 45 tornadoes across the Midwest and Great Lakes regions. Second, the F4 tornado that struck Oak Lawn was not the only tornado in the area of Chicago. Among other events, an F3 tornado struck downtown Chicago in 1871, an F4 tornado hit Bolingbrook in 1976, and an F5 tornado hit Plainfield in 1990.
Chicago has been hit by a number of tornadoes. Official records go back as far as 1950. Since then, Chicago itself has been hit by an F2 tornado in March 4, 1961, an F1 tornado on May 29, 1983, and an F0 tornado on September 22, 2006. Even more tornadoes have hit the greater Chicago area. The worst of these was the F4 that hit Oak Lawn on April 21, 1967. Before official records, in 1871 an F3 tornado tore through downtown Chicago.
There have been 92 tornado's in Chicago and the surrounding areas since 1855.
It is impossible to make long term predictions of whether or when a specific location will have a tornado. When we do determine that a town or city is going to be hit, the time to the tornado's impact is measured in minutes.
The most violent tornado and only F5 tornado recorded in the month of August struck Plainfield, Illinois, southwest of Chicago, on August 28, 1990.
Chicago is a relatively small target for a tornado to strike and so unlikely to be hit. So it really is only by chance that tornadoes have missed Chicago. However, tornadoes have occurred in the Chicago area, so it is entirely possible for one to hit the city itself.
Yes, tornadoes are not uncommon in northern Illinois. One the most notable of these was the F5 tornado that struck Plainfield, Illinois, not far from Chicago, on August 28, 1990 killing 29 people.
Yes, Chicago can experience both earthquakes and tornadoes. While rare, earthquakes can occur in the region due to the New Madrid Seismic Zone. Tornadoes are more common, with the city being in the Tornado Alley region, experiencing severe weather and occasional tornado outbreaks.
A tornado likely impacted Washington D.C. when the British attacked in in 1814. A tornado may also make history if it causes catastrophic damage to a major metropolis such as Chicago, Dallas, or St. Louis.
There is no official beginning or end to tornado season anywhere, but for Illinois it can generally said to end in mid June. Tornadoes do occur outside of the normal season, just less frequently. One of the most notable examples came on August 28, 1990 when an F5 tornado hit Plainfield, a suburb of Chicago, killing 29 people.
There is no official beginning or end to tornado season anywhere, but for Illinois it can generally said to end in mid June. Tornadoes do occur outside of the normal season, just less frequently. One of the most notable examples came on August 28, 1990 when an F5 tornado hit Plainfield, a suburb of Chicago, killing 29 people.