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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 National Weather Service in Chicago issued 16 tornado warnings on Monday around the region, the most in a single day in 20 years. This included Cook and DuPage counties, where O'Hare and ...
The city’s Office of Emergency Management and Communications issued a severe storm warning at about 7:15 p.m., which was expected to last until 9 p.m., while the National Weather Service ...
An example of a tornado warning polygon issued by the National Weather Service. A tornado warning (SAME code: TOR) is a public warning that is issued by weather forecasting agencies to an area in the direct path of a tornado, or a severe thunderstorm capable of producing one, and advises individuals in that area to take cover.
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 ...
In Canada, a severe thunderstorm is defined as having wind gusts of greater than 90 km/h (56 mph), hail with a diameter of greater than two centimetres (0.79 in), rainfall rates of greater than 50 millimetres (2.0 in) in one hour or greater than 75 millimetres (3.0 in) in three hours, or tornadoes. [14]
A radar-confirmed tornado swept through suburban Chicago, damaging homes, toppling trees, knocking out power and causing some injuries, officials said. At least four injuries were reported in ...
Warning sirens could be heard ringing out in downtown Chicago as multiple tornadoes touched down close to the city on Wednesday 12 July. The eerie sound could be heard in footage posted by Twitter ...