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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]
[8] [9] This enhanced form of a tornado warning is issued mainly by Weather Forecast Offices within the National Weather Service's Central and Southern Region Headquarters; a tornado emergency is the highest level of a three-tiered Impact Based Warning system for tornadoes used by all WFOs within the Central Region Headquarters, and eight ...
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.
The devastation left by the violent twisters that struck Middle Tennessee on December 9 will take years to overcome. But recovery is underway.
Sign in. Mail. 24/7 Help. ... The tornado in Jefferson County had wind speeds of 100 miles per hour. ... Multiple business was destroyed in Jessamine County near U.S. 27 after strong storms swept ...
Not only may a few of the strongest storms continue to set off tornadoes in the Southeast, but storms with intense winds and torrential rain may hinder travel as far north as the mid-Atlantic ...
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 ...
A post-Christmas severe weather event put more than 10 million people at risk for damaging thunderstorms across part of the south-central United States. The area that was at risk for severe ...