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You will never hear a wind speed report of 11 m.p.h. Wind speeds are measured in whole knots and then converted into miles per hour. Because one knot equals 1.15 miles per hour, 9 knots converts to 10 m.p.h. and 10 knots converts to 12 m.p.h.
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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.
