Flood — Hanson, South Dakota

2024-06-20 to 2024-06-25 · near Rockport, Hanson, South Dakota

Event narrative

Rainfall amounts across Hanson County from June 20-22 ranged from 6 to 8 inches. Overland flooding ensued with additional major flooding along the James River. Several roads were closed and damaged due to flooding. Preliminary damage assessments estimate loss to public infrastructure across the county to be 251 thousand dollars. The majority of overland flooding subsided by June 25, but river flooding continued through the end of the month. For additional information on river flooding, please see other flood entries for Hanson County.

Wider weather episode

A multi-day significant heavy rainfall event from June 20-22 resulted in widespread rain totals between 5 and 10 inches with pockets in excess of 15 inches across portions of southeast South Dakota, northwest Iowa, and southwest Minnesota. As rainfall reached area streams and rivers, major to record flooding was observed, devastating several towns and communities. Extensive overland flooding also resulted in significant impacts and damages. All river crest information is preliminary until made official by the gauge owner.

A Presidential Disaster Declaration was signed for Aurora, Bon Homme, Brule, Charles Mix, Clay, Davison, Douglas, Gregory, Hanson, Hutchinson, Lake, Lincoln, McCook, Miner, Minnehaha, Moody, Sanborn, Turner, Union, and Yankton Counties.

View location on OpenStreetMap → (43.5021, -97.9618)

Source: NOAA Storm Events Database, event_id 1194966. Narrative written by the NWS forecast office that issued the report.