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English: Map of tornadoes in the May 21–26, 2011 tornado outbreak sequence created using QGIS with data from the National Oceanic and Atmospheric Administration Date 2 October 2014, 19:00
English: Map of confirmed tornadoes and tornado warnings by the National Weather Service during the tornado outbreak of April 14-16, 2011. Map produced in QGIS. National Weather Service warning outlines available from the Iowa Environmental Mesonet and tornado data available from the National Centers for Environmental Information.
English: Map of confirmed tornadoes and tornado warnings by the National Weather Service during the tornado outbreak of March 21-22, 2022. Map produced in QGIS. National Weather Service warning outlines available from the Iowa Environmental Mesonet and tornado data available from the National Centers for Environmental Information.
English: Map of confirmed tornadoes, thunderstorm wind reports, and warnings issued by the National Weather Service from 12 UTC December 15 to 12 UTC December 16, 2021, over the Central and Midwestern US. Map produced in QGIS with border outlines from the United States Census Bureau. Convective wind reports from the Storm Prediction Center.
Original file (875 × 672 pixels, file size: 1.14 MB, MIME type: image/png) This is a file from the Wikimedia Commons . Information from its description page there is shown below.
While direct measurement of the most violent tornado wind speeds is nearly impossible, since conventional anemometers would be destroyed by the intense winds and flying debris, some tornadoes have been scanned by mobile Doppler radar units, which can provide a good estimate of the tornado's winds. The highest wind speed ever measured in a ...