The .gov means it’s official.
Federal government websites often end in .gov or .mil. Before sharing sensitive information, make sure you’re on a federal government site.
The site is secure.
The https:// ensures that you are connecting to the official website and that any information you provide is encrypted and transmitted securely.
Please note: Beginning 8/22, NCEI will be upgrading its systems, which will temporarily interrupt access to some services. The upgrade is expected to take several weeks. We apologize for the inconvenience.
Please Note: The CrowdMag project has transitioned to CIRES, University of Colorado. The underlying data will continue to be available, but this page will be removed on September 8, 2025. Send comments and questions to ncei.info@noaa.gov.
