Alert archive / South Dakota / River Flood Warnings in 2025
River Flood Warning 3, NWS Aberdeen, SD
NWS Aberdeen, SD issued this river flood warning at May 20, 2025, 10:25 PM MDT for Corson County, South Dakota. It took effect at May 20, 2025, 10:39 PM MDT. It was in force for 18 hr.
The area
The counties it named.
The facts
- Issued
- May 20, 2025, 10:25 PM MDT (04:25 UTC)
- In effect from
- May 20, 2025, 10:39 PM MDT
- Expired
- May 21, 2025, 4:14 PM MDT
- In force
- 18 hr
- Issued by
- NWS Aberdeen, SD
- Area
- Storm-based polygon
- Flood severity
- Minor
County Corson County, SD
The radar
The Bismarck radar (KBIS), 123 km from the middle of the area, began a volume at 04:25 UTC, the scan nearest the moment this went out.
Open the radar archive at this moment
The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.
The river
Written for the forecast point Grand River (SD) near Little Eagle (LIES2). The gauge peaked at 15.45 ft at May 21, 2025, 6:00 AM MDT.
- Action stage
- 13 ft
- Minor stage
- 15 ft
- Moderate stage
- 17 ft
- Major stage
- 21 ft
This gauge today: stage, forecast and historic crests
Stage from the USGS instantaneous record for site 06357800, one reading an hour, from a day before the product to a day after it ended. Flood stages are today's.
The office that day
Everything else NWS Aberdeen, SD issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 21, 1:14 PM MDT | Frost Advisory | ABR | Campbell, Corson, Dewey, Edmunds, Faulk, McPherson and 2 more | 18 hr |
Nearby
River Flood Warnings in South Dakota, 2025Every river flood warning in 2025
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; radar from the NEXRAD Level II archive; the gauge from the NWS water service and the USGS.