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Hurricane wind categories: (Saffir-Simpson scale) Category 1: wind speeds 74-95 m.p.h; category 2: 96-110 m.p.h; category 3: 111-130 m.p.h.; category 4: 131-155 m.p.h.; category 5: over 155 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 Dennis Haller plus weather producer Bill Snyder contribute to this page.
