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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.
NOAA National Weather Service Improves Tornado Rating System at NOAA News; The Enhanced Fujita Scale (EF Scale) at Storm Prediction Center; EF-Scale Training Archived June 21, 2017, at the Wayback Machine at The Warning Decision Training Branch of National Weather Service (NWS) The Enhanced Fujita Tornado Scale at National Climatic Data Center
Completed Tornado Diagram. Tornado diagrams, also called tornado plots, tornado charts or butterfly charts, are a special type of Bar chart, where the data categories are listed vertically instead of the standard horizontal presentation, and the categories are ordered so that the largest bar appears at the top of the chart, the second largest appears second from the top, and so on.
A warning means a tornado has been sighted or weather radar indicates rotation and a possible tornado. It represents imminent danger to life and property and urges immediate action to get to a ...
A tornado warning is more severe than a tornado watch, indicating that people take action and seek shelter. A watch signals that a tornado could occur, while a warning signals once a tornado has ...
A small severe weather outbreak produced numerous tornadoes along the Gulf Coast. On April 9, the Storm Prediction Center issued an enhanced risk of severe weather from Central Texas through western Louisiana, including a 10% risk for tornadoes. On April 10, the Storm Prediction Center issued a moderate risk for south-central Louisiana into ...
A tornado warning means "take action now" as a tornado has been sighted or is indicated by weather radar. There is imminent danger to life and property. Move to an interior room on the lowest ...
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 ...