National Weather Service United States Department of Commerce

Heavy Rain and Severe Thunderstorms in the Southwest; Coastal Flooding Along Portions of the Eastern Seaboard

A slow moving front will produce a threat for heavy rainfall and severe weather from the southwest into the western High Plains through the weekend. Heavy rainfall and isolated flash flooding and gusty winds will be possible this weekend into early next week in portions of southern Florida. Coastal flooding impacts remain possible through the weekend along the Southeast and Mid-Atlantic coasts Read More >

The National Weather Service completed a service assessment for flooding along the Missouri and Souris Rivers that occurred from May through August 2011. The final report of this assessment may be read at:
 
 
Service assessments are internal reviews of the National Weather Service’s performance during certain Hydrometeorological, oceanographic, and geological events. They identify best practices and areas for product and service improvements in the form of findings and recommendations.
 
Additional information regarding this and other floods across South Dakota from 1881 to 2019 can be found here, courtesy of the U.S. Corps of Engineers (alternatively here, via the South Dakota State Historical Society).