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Since its initial usage in May 1999, the National Weather Service (NWS) in the United States has used the tornado emergency bulletin — a high-end classification of tornado warning — sent through either the issuance of a warning or via a "severe weather statement" that provides updated information on an ongoing warning—that is issued when a violent tornado (confirmed by radar or ground ...
The tornado first touched down at 11:02 p.m. in the Springbrook Prairie Forest Preserve, [5] with the first tornado warning including Naperville and Woodridge issued at 11:05 p.m. for radar-indicated rotation. This warning included areas of Chicago as well, specifically the Chicago Lawn and Midway International Airport areas. [8] Around this ...
Map of regions covered by the 122 Weather Forecast Offices. The National Weather Service operates 122 weather forecast offices. [1] [2] Each weather forecast office (WFO or NWSFO) has a geographic area of responsibility, also known as a county warning area, for issuing local public, marine, aviation, fire, and hydrology forecasts.
Parts of the Chicago area could see severe thunderstorms Tuesday evening, with hail, strong winds and tornadoes possible, according to the National Weather Service. Northwestern Illinois and the ...
The weather service also issued a tornado warning for much of north Cook County through 8:30 p.m. Tuesday. A tornado watch means weather conditions make tornado formation likely. A tornado warning ...
A severe thunderstorm warning (SAME code: SVR) is a type of public warning for severe weather that is issued by weather forecasting agencies worldwide when one or more severe thunderstorms have been detected by Doppler weather radar, observed by weather spotters, or reported by an emergency management agency, law enforcement, or the general ...
Later that evening, a separate system, the remnants of the previous day's derecho and fueled by the same Ring of Fire pattern, produced a small-scale tornado outbreak and damaging wind event across the Chicago metropolitan area, with two tornadoes confirmed in the city of Chicago itself, and wind gusts reaching 90 mph (140 km/h). An additional ...
A short time later, the weather service said the Chicago forecast area was “currently tornado warning free.” Tornado touches down near Chicago's O'Hare airport, disrupting hundreds of flights ...