Alert archive / South Dakota / River Flood Warnings in 2021

River Flood Warning 2, NWS Sioux Falls, SD

August 29, 2021Lincoln County, South Dakota

NWS Sioux Falls, SD issued this river flood warning at Aug 29, 2021, 7:44 AM CDT for Lincoln County, South Dakota. It was in force for 15 hr.

The area

The outline as issued.

The facts

Issued
Aug 29, 2021, 7:44 AM CDT (12:44 UTC)
Expired
Aug 29, 2021, 10:28 PM CDT
In force
15 hr
Issued by
NWS Sioux Falls, SD
Area
Storm-based polygon
Flood severity
Minor

County Lincoln County, SD

The radar

The Sioux Falls radar (KFSD), 30 km from the middle of the area, began a volume at 12:45 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 Beaver Creek (SD) at Canton (BCCS2).

Action stage
1246 ft
Minor stage
1247 ft
Moderate stage
1249 ft
Major stage
1251 ft

This gauge today: stage, forecast and historic crests

Stage from the USGS instantaneous record, one reading an hour, from a day before the product to a day after it ended. Flood stages are today's.

The text

As transmitted.

687 
WGUS43 KFSD 291244
FLWFSD

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Flood Warning
National Weather Service Sioux Falls SD
744 AM CDT Sun Aug 29 2021

...The National Weather Service in Sioux Falls SD has issued a Flood 
Warning for the following rivers in South Dakota...

  Beaver Creek at Canton affecting Lincoln County.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Motorists should not attempt to drive around barricades or drive 
cars through flooded areas.

Turn around, don't drown when encountering flooded roads. Most flood 
deaths occur in vehicles.

Additional information is available at www.weather.gov.

The next statement will be issued Monday morning at 945 AM CDT.

&&


SDC083-301445-
/O.NEW.KFSD.FL.W.0002.210829T1244Z-000000T0000Z/
/BCCS2.1.ER.210829T0840Z.210829T1200Z.000000T0000Z.UU/
744 AM CDT Sun Aug 29 2021

The National Weather Service in Sioux Falls has issued a

* Flood Warning for
  the Beaver Creek at Canton.
* From this morning until further notice.
* At 7:00 AM CDT Sunday the stage was 1247.8 feet.
* Flood stage is 1247.0 feet.
* Minor flooding is occurring.
* Recent Activity...The maximum river stage in the 24 hours ending 
  at 7:00 AM CDT Sunday was 1247.8 feet.
* Forecast...No forecast is available for this location.
* Impact...At 1247.0 feet, minor flooding of pasture and other 
  agricultural lands begins.

&&


            Fld   Observed           Forecasts (unknown time) 
Location    Stg   Stg   Day/Time     d1    d2    d3           

Beaver Creek
Canton      1247. 1247. Sun 7 AM CDT MSG   MSG   MSG          





&&

LAT...LON 4336 9677 4334 9663 4332 9660 4328 9658
      4327 9659 4331 9661 4332 9665 4334 9677

$$

APT
2 follow-up statements
896 
WGUS83 KFSD 292337
FLSFSD

Flood Statement
National Weather Service Sioux Falls SD
637 PM CDT Sun Aug 29 2021

...The Flood Warning continues for the following rivers in South 
Dakota...

  Beaver Creek at Canton affecting Lincoln County.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Motorists should not attempt to drive around barricades or drive 
cars through flooded areas.

Turn around, don't drown when encountering flooded roads. Most flood 
deaths occur in vehicles.

Additional information is available at www.weather.gov.

The next statement will be issued Monday morning by 11:00 AM CDT.

&&


SDC083-310145-
/O.CON.KFSD.FL.W.0002.000000T0000Z-000000T0000Z/
/BCCS2.1.ER.210829T0840Z.210829T1415Z.000000T0000Z.UU/
637 PM CDT Sun Aug 29 2021

...The Flood Warning remains in effect...

The Flood Warning continues for
  the Beaver Creek at Canton.
* Until further notice.
* At 6:00 PM CDT Sunday the stage was 1247.4 feet.
* Flood stage is 1247.0 feet.
* Minor flooding is occurring.
* Recent Activity...The maximum river stage in the 24 hours ending 
  at 6:00 PM CDT Sunday was 1248.1 feet.
* Forecast...No forecast is available for this location.
* Impact...At 1247.0 feet, minor flooding of pasture and other 
  agricultural lands begins.

&&


            Fld   Observed            
Location    Stg   Stg   Day/Time          

Beaver Creek
Canton      1247. 1247. Sun 6 PM CDT      




&&

LAT...LON 4336 9677 4334 9663 4332 9660 4328 9658
      4327 9659 4331 9661 4332 9665 4334 9677

$$

TRM
117 
WGUS83 KFSD 300328
FLSFSD

Flood Statement
National Weather Service Sioux Falls SD
1028 PM CDT Sun Aug 29 2021

...The Flood Warning is cancelled for the following rivers in South 
Dakota...

  Beaver Creek at Canton affecting Lincoln County.

SDC083-300430-
/O.CAN.KFSD.FL.W.0002.000000T0000Z-210830T0328Z/
/BCCS2.1.ER.210829T0840Z.210829T1415Z.210830T0210Z.UU/
1028 PM CDT Sun Aug 29 2021

...The Flood Warning for the Beaver Creek at Canton has been 
cancelled...

The Flood Warning is cancelled for
  the Beaver Creek at Canton.
* At 10:00 PM CDT Sunday the stage was 1246.9 feet.
* Flood stage is 1247.0 feet.
* Forecast...No forecast is available for this location.

&&


            Fld   Observed          
Location    Stg   Stg   Day/Time              

Beaver Creek
Canton      1247. 1246. Sun 10 PM CDT           





&&

LAT...LON 4336 9677 4334 9663 4332 9660 4328 9658
      4327 9659 4331 9661 4332 9665 4334 9677

$$

Kalin

The office that day

Everything else NWS Sioux Falls, SD issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Aug 28, 7:23 PM CDTSevere Thunderstorm Warning Considerable damage threatFSDLincoln52 min
Aug 28, 7:25 PM CDTSevere Thunderstorm Warning Considerable damage threatFSDHanson, Lake, McCook, Miner, Minnehaha, Moody50 min
Aug 28, 7:27 PM CDTSevere Thunderstorm WarningFSDBon Homme, Hutchinson, Turner, Yankton48 min
Aug 28, 7:48 PM CDTSevere Thunderstorm WarningFSDLake, McCook, Minnehaha, Moody, Turner31 min
Aug 28, 7:50 PM CDTSevere Thunderstorm WarningFSDBon Homme, Clay, Hutchinson, Lincoln, Turner, Yankton40 min
Aug 28, 8:52 PM CDTSevere Thunderstorm WarningFSDLincoln, Minnehaha23 min
Aug 28, 9:13 PM CDTSevere Thunderstorm WarningFSDLincoln47 min
Aug 28, 9:20 PM CDTFlash Flood WarningFSDLincoln, Minnehaha85 min
Aug 28, 9:29 PM CDTFlash Flood WarningFSDLincoln, Minnehaha3 hr
Aug 28, 10:36 PM CDTFlash Flood WarningFSDLincoln, Minnehaha114 min
Aug 28, 11:46 PM CDTRiver Flood WarningFSDLincoln, Minnehaha8 hr

Nearby

River Flood Warnings in South Dakota, 2021Every river flood warning in 2021

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.