Certified copies of storm data can only be provided through the National Climatic Data Center . Online data provided directly from NWS Sioux Falls is considered for information purposes only and uncertified.
Every effort is made to post the latest weather information.
However, occasions arise when access may be difficult. If you depend on weather information for mission critical use, read the full notice about accessing National Weather Service information via the Internet, as well as our privacy statement . The NWS is an Equal Opportunity Employer that promotes diversity in the workplace.