DescriptionHurricane Irma max wind gusts Polk County.png
English: Preliminary top observed wind gusts (miles per hour; 1 mph = 1.6 km/h) during Hurricane Irma in Polk County, Florida. This file was made by the National Weather Service's Ruskin (Tampa Bay) office a few hours after Irma's passage and these preliminary measurements are subject to review, calibration of equipment, and other error corrections. Numbers in purple are hurricane force (74+ mph). Numbers in red are tropical storm force (39-73 mph).
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/fsd/disclaimer: "By submitting images, you understand that your image is being released into the public domain. This means that your photo or video may be downloaded, copied, and used by others."