Flood, Corson
- When
- March 23, 4:00 AM CST to March 25, 8:00 AM CST
- Where
- Corson forecast zone
- Coordinates
- 45.709, -101.197 (the zone’s center; the record gives no point)
Flood in South Dakota, March 23 to 25, 1997
Snowmelt runoff and ice jams forced the Grand River through Corson County over flood stage in the early morning hours of the 23rd. 3 feet on March 24th.
Where it happened
Every event with a place to put it; 1 filed by county or forecast zone are drawn at its center, in a lighter ring. Tap one for its entry below.
- Tornadoes
- Tropical storms and surge
- Floods
- Wind
- Hail
- Winter weather
- Heat and drought
- Cold
- Fire, smoke and dust
- Marine and coastal
- Other
The toll
- Deaths
- 0
- Injuries
- 0
- Property damage
- None recorded
- Crop damage
- None recorded
- Events
- 1
Deaths and injuries are direct and indirect together, as the offices filed them. Damage is property and crops in the dollars of the year, not adjusted for inflation, and only where an office estimated it.
What happened
The episode as NWS ABR wrote it up.
Snowmelt runoff and ice jams forced the Grand River through Corson County over flood stage in the early morning hours of the 23rd. The Grand River 1 mile south of Little Eagle rose to 17.3 feet on March 24th. Flood stage is 15 feet. Flooding of lowlands and some roads resulted. The Grand River again went above flood stage from March 28th to the 29th and rose to 16.2 feet.
The radar
The national radar mosaic for the moment the first event began.
Event by event
1 flood. Local standard time, as filed.
What these are
- Flood
- Flooding that develops more slowly than a flash flood: rivers leaving their banks, or water standing over land for an extended time.
After NWS Directive 10-1605, the rules offices file Storm Data by.
The same day elsewhere
More
Every storm in South Dakota in 1997Every state in 1997This day in weather historyWarnings in South Dakota, March 1997
Sources
NOAA National Centers for Environmental Information, Storm Events Database, compiled from the National Weather Service’s monthly Storm Data. Complete through 2026-06; NCEI adds each month about 75 days after it ends and revises past years a few times a year. Rebuilt 2026-10-01. Each event’s entry at NCEI: 5591679.