This image is in the public domain because it was stored on the web servers of the U.S. National Weather Service. NWS-created images are automatically public domain in the U.S. since the NWS is a part of the U.S. government. However, the NWS sites also host non-NWS images which have been submitted by individuals: these are generally shown as "Courtesy of ...". Such images have explicitly been released to the public domain by the copyright owner as part of the upload process.
As stated at https://www.weather.gov/disclaimer/: "The information on National Weather Service Web servers and Web sites is in the public domain, unless specifically annotated otherwise, and may be used freely by the public."
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Uploaded a work by Sean Ernst from ArcGIS Story Map: [https://storymaps.arcgis.com/stories/093349694ec3437abbe61ea85fe12161 April 19, 2023 Large Hail & Tornado Event] with UploadWizard
File usage
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