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Summary
DescriptionRadar collage of a long-lived supercell radar on December 10-11, 2021.png
English: Collage of radar imagery of a long-lived supercell that tracked across several states on the night of December 10-11, 2021. The supercell produced at least one tornado that caused fatalities in each of the labeled locations. Also shown are tornado warnings issued by the National Weather Service in connection with this supercell. Map produced in QGIS with border outlines from the United States Census Bureau. National Weather Service warning outlines available from the Iowa Environmental Mesonet.
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