River Flood Warnings in South Dakota
1,284 river flood warnings since 1986. An alert counts here when it covered any part of the state, so the counties below add up to more than the state. The archive of river flood warnings reaches back to 2005.
River Flood Warnings by county
Each county as a circle sized by its count since 1986. Tap one for its archive.
- River Flood Warnings
- 1,284
- Busiest year
- 2019321 river flood warnings
- Average year
- 68over 19 years on file
Over time
By year
Before late 2005 the archive holds only tornado, severe thunderstorm, flash flood and marine warnings, and from 1997 SPC's watches, so the jump that year is the archive widening, not the weather.
By month of the year
By county
Every county with at least one alert. A county page lists each alert that covered it.
- Minnehaha County241
- Union County151
- Moody County138
- Brookings County118
- Lincoln County107
- Codington County94
- Turner County69
- Spink County60
- Brown County57
- Hamlin County48
- Clay County47
- Yankton County42
- Davison County39
- Bon Homme County36
- Charles Mix County31
- Hutchinson County25
- Corson County25
- Haakon County24
- Lyman County21
- Ziebach County21
- Grant County20
- Tripp County19
- McCook County18
- Hanson County17
- Roberts County17
- Sanborn County16
- Beadle County15
- Meade County14
- Dewey County13
- Harding County12
- Jackson County12
- Perkins County11
- Jones County11
- Mellette County11
- Stanley County8
- Pennington County7
- Brule County4
- Butte County2
The latest river flood warnings
The most recent on file, newest first.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 31, 9:10 AM CDT | River Flood Warning | ABR | Roberts | 4 hr |
| Jul 10, 2:58 AM CDT | River Flood Warning | FSD | Brookings | 49 hr |
| Jul 9, 5:39 PM CDT | River Flood Warning | ABR | Hamlin | 17 hr |
| Jul 9, 12:15 AM CDT | River Flood Warning | FSD | Brookings, Hamlin | 21 days |
| Jul 8, 10:03 PM CDT | River Flood Warning | ABR | Codington | 16 hr |
| Jul 8, 7:23 PM CDT | River Flood Warning | ABR | Grant | 4 hr |
| Jul 8, 6:39 PM CDT | River Flood Warning | ABR | Codington | 9 hr |
| Jul 8, 5:16 PM CDT | River Flood Warning | ABR | Codington | 25 hr |
| Jul 8, 2:19 AM CDT | River Flood Warning | ABR | Brown | 8 hr |
| Jun 5, 6:58 AM CDT | River Flood Warning | FSD | Brookings | 71 hr |
| Jun 4, 12:20 PM CDT | River Flood Warning | FSD | Brookings, Hamlin | 70 hr |
Nearby
Sources
National Weather Service watches, warnings, advisories and statements from the Iowa Environmental Mesonet's VTEC archive, which reconstructs tornado, severe thunderstorm, flash flood and marine warnings back to 1986 from the NWS text archive. Storm Prediction Center watches and mesoscale discussions from SPC's archive through the Mesonet. County centers from the US Census Bureau. Warning verification from the Mesonet's Cow. Rebuilt daily.