Big Sioux River At Lake Poinsett Inlet/Outlet (PONS2)

Flood Stage: 1654 Feet

Latest Stage: 1651.44

Current Warnings/Statements/Advisories:None currently.

Complete information about the Big Sioux River at Lake Poinsett Inlet/Outlet available from NWS Aberdeen, SD

Flood Categories (in feet)

Major Flood Stage:	1657
Moderate Flood Stage:	1655
Flood Stage:	1654
Action Stage:	1651.5
Low Stage (in feet):	-9999

Historic Crests
(1) 1,657.60 ft on 04/05/2011
(2) 1,657.00 ft on 04/22/2019
(3) 1,656.44 ft on 07/17/2010
(4) 1,656.20 ft on 05/12/1997
(5) 1,655.50 ft on 05/02/2001
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(P): Preliminary values subject to further review.

Recent Crests
(1) 1,654.31 ft on 04/14/2020
(2) 1,657.00 ft on 04/22/2019
(3) 1,651.29 ft on 10/08/2015
(4) 1,652.04 ft on 05/12/2014
(5) 1,650.93 ft on 10/28/2013
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(P): Preliminary values subject to further review.

Low Water Records
Currently none available.

Big Sioux River Near Bruce (BRCS2)

NOTE: No forecasts are available for this location

Flood Stage: 8 Feet

Latest Stage: 4.45

Current Warnings/Statements/Advisories:None currently.

Vertical Datum updated from NGVD29 to NAVD88 by gauge owner.

Complete information about the Big Sioux River near Bruce available from NWS Sioux Falls, SD

Flood Categories (in feet)

Major Flood Stage:	11.5
Moderate Flood Stage:	9.5
Flood Stage:	8
Action Stage:	7
Low Stage (in feet):	-9999

Historic Crests
(1) 11.56 ft on 03/29/2011
(2) 10.88 ft on 03/29/2019
(3) 10.75 ft on 03/24/2009
(4) 10.60 ft on 04/09/2001
(5) 10.46 ft on 06/25/2013
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(P): Preliminary values subject to further review.

Recent Crests
(1) 8.80 ft on 03/30/2020
(2) 10.88 ft on 03/29/2019
(3) 10.20 ft on 04/23/2018
(4) 8.01 ft on 02/21/2017
(5) 5.03 ft on 08/14/2016
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(P): Preliminary values subject to further review.

Low Water Records
Currently none available.

Big Sioux River Near Brookings (BRKS2)

NOTE: River forecasts for this location take into account past precipitation and the precipitation amounts expected approximately 24 hours into the future from the forecast issuance time.

Flood Stage: 9 Feet

Latest Stage: 3.4

Current Warnings/Statements/Advisories:None currently.

Vertical Datum updated from NGVD29 to NAVD88 by gauge owner.

Complete information about the Big Sioux River near Brookings available from NWS Sioux Falls, SD

Flood Categories (in feet)

Major Flood Stage:	12
Moderate Flood Stage:	10.5
Flood Stage:	9
Action Stage:	8
Low Stage (in feet):	-9999

Historic Crests
(1) 14.77 ft on 04/09/1969
(2) 14.34 ft on 09/13/2019
(3) 13.70 ft on 06/22/1984
(4) 13.66 ft on 09/25/2010
(5) 13.50 ft on 07/04/1993
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(P): Preliminary values subject to further review.

Recent Crests
(1) 11.05 ft on 03/12/2020
(2) 14.34 ft on 09/13/2019
(3) 13.11 ft on 03/22/2019 (P)
(4) 12.30 ft on 04/24/2018
(5) 7.40 ft on 05/25/2017
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(P): Preliminary values subject to further review.

Low Water Records
Currently none available.

Big Sioux River At Flandreau (FLAS2)

NOTE: No forecasts are available for this location

Flood Stage: 0 KCFS

Latest Flow: n/a

Current Warnings/Statements/Advisories:None currently.

Complete information about the Big Sioux River at Flandreau available from NWS Sioux Falls, SD

Flood Categories (in feet)

Major Flood Stage:	15
Moderate Flood Stage:	12
Flood Stage:	11
Action Stage:	9
Low Stage (in feet):	-9999

Historic Crests
(1) 17.80 ft on 04/09/1969
(2) 15.30 ft on 09/12/2019
(3) 15.00 ft on 06/22/1984
(4) 14.20 ft on 06/17/1957
(5) 14.00 ft on 07/04/1993
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(P): Preliminary values subject to further review.

Recent Crests
(1) 15.30 ft on 09/12/2019
(2) 13.90 ft on 03/23/2011 (P)
(3) 12.20 ft on 03/17/2010
(4) 12.60 ft on 04/23/2001
(5) 13.60 ft on 04/03/1997
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(P): Preliminary values subject to further review.

Low Water Records
Currently none available.

Big Sioux River Near Dell Rapids (DERS2)

NOTE: River forecasts for this location take into account past precipitation and the precipitation amounts expected approximately 24 hours into the future from the forecast issuance time.

Flood Stage: 12 Feet

Latest Stage: 3.93

Current Warnings/Statements/Advisories:None currently.

Vertical Datum updated from NGVD29 to NAVD88 by gauge owner.

Complete information about the Big Sioux River near Dell Rapids available from NWS Sioux Falls, SD

Flood Categories (in feet)

Major Flood Stage:	15
Moderate Flood Stage:	14
Flood Stage:	12
Action Stage:	11
Low Stage (in feet):	-9999

Historic Crests
(1) 16.70 ft on 09/13/2019
(2) 16.47 ft on 04/09/1969
(3) 16.29 ft on 09/25/2010
(4) 16.02 ft on 03/15/2007
(5) 15.98 ft on 03/24/2019 (P)
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(P): Preliminary values subject to further review.

Recent Crests
(1) 13.38 ft on 03/14/2020
(2) 16.70 ft on 09/13/2019
(3) 15.98 ft on 03/24/2019 (P)
(4) 14.20 ft on 04/27/2018
(5) 9.37 ft on 05/24/2017
Show More Recent Crests

(P): Preliminary values subject to further review.

Low Water Records
Currently none available.

Big Sioux River At Sioux Falls I-90 (SFLS2)

NOTE: River forecasts for this location take into account past precipitation and the precipitation amounts expected approximately 24 hours into the future from the forecast issuance time.

Flood Stage: 12 Feet

Latest Stage: 8.08

Current Warnings/Statements/Advisories:None currently.

Complete information about the Big Sioux River at Sioux Falls I-90 available from NWS Sioux Falls, SD