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.
The largest tornado on record actually occurred in 2004, hitting the town of Hallam, Nebraska. A major tornado outbreak occurred in the southern U.S. in 1932, primarily affecting Alabama and Georgia, but none of the tornadoes were noted for record or near record size.
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Yes, wind near a tornado spirals in towards the tornado.
Air near the ground spirals inward and upward in and near the tornado.
If there is a tornado then the National Weather Service will issue a tornado waring saying a tornado has been detected.
A satellite tornado is a tornado that touches down near and usually orbits a larger tornado within the same mesocyclone.
They don't need to be any color in particular. Though they are often green. The clouds near a tornado and even the tornado itself may appear orange if it occurs near sunset. Clouds near a tornado can also be gray or black.
As of April 27, 2014, there is an ongoing tornado outbreak. Tornadoes have ocurred in Oklahoma, Kansas, Nebraska, Missouri, and Arkansas. Reports indicate a tornado in Quapaw, Oklahoma is reported to have killed 2 people. A large, destructive tornado caused major damage in Mayflower and Vilonia, Arkansas, with unconfirmed reports of fatalities. It will probably be a few days before all the tornadoes are accounted for. On April 25, an EF3 tornado killed an infant near Chocowinty, North Carolina.
Chicago, IL is not near any mountains.
No. While Ontario does get tornadoes, it is nowhere near Tornado Alley. Tornado Alley is farther west.
Don't go near windows.
Tornado do happen near and on the coast. It just so happens that the areas that get strong tornadoes (the tornadoes that get all the attention) happen to be inland. The strong thunderstorms that produce most tornadoes form most easily when warm, moist air collides with cool and/or dry air along with a few other conditions. These meet most ideally in inland areas but tornado outbreak along coasts have also ocurred.