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Low pressure center: On a weather map, an area of a local minimum of air pressure, often associated with inclement weather. When viewed from above, winds spiral into a low pressure center in a counterclockwise sense and usually at an angle of about 25 degrees to the tangent.
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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.
