FloodZoneMap.org

Flood — Bon Homme, SD

Jun 26, 2018

Starting June 20, the area was impacted adversely by several very slow moving mid-level waves which drifted across the northern and central Plains and interacted with a nearly stationary region of baroclinicity during the following week. High precipitable water and persistent lift forcing resulted in a widespread 2 to 6 inches of rainfall, inundating crop and pasture land.

Source: NOAA National Weather Service Storm Events Database (event 764808). Narrative written by NWS staff at the time of the event.

Flood Risk Context for Bon Homme, SD

This event is one of many recorded floods in Bon Homme County. See the full FEMA flood zone map, NFIP claim totals, and disaster history for the area.

View Bon Homme County flood data →

More Flood Stories

Flood$1.2M damage

Bon Homme, SD · Jun 21, 2024

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.

Read the full account →
Flood$1.5M damage

Bon Homme, SD · Mar 13, 2019

Rainfall of one to three inches on frozen ground and into a snow pack with between 2 and 5 inches of liquid water equivalent resulted in considerable overland flooding.||One of the hardest hit areas was around Yankton, where a No Travel Advisory was issued for the city on March…

Read the full account →
Flood$10K damage

Bon Homme, SD · Sep 1, 2019

Continued high dam releases, along with another period of very heavy rainfall in the middle of the month, maintained river flooding along much of the Missouri River between Fort Randall and Gavins Point Dams.

Read the full account →
Flood$10K damage

Bon Homme, SD · Sep 1, 2019

Continued high dam releases, along with another period of very heavy rainfall in the middle of the month, maintained river flooding along much of the Missouri River between Fort Randall and Gavins Point Dams.

Read the full account →