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Tornado season: Tornadoes occur in all seasons of the year in the United States but there are times of greatest frequency, the so-called tornado season, and it varies from region to region. It is January-March across the Gulf states and March-June across Illinois.
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Tom Skilling is chief meteorologist at WGN-TV. His forecasts can be seen Monday through Friday on WGN-TV News at noon and 9 p.m.
WGN-TV meteorologists Steve Kahn, Richard Koeneman and Paul Dailey plus weather producer Bill Snyder contribute to this page.
