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Hydrograph River at a Glance Download
Mississippi River at Keokuk Tailwater (ft)Flow (kcfs)Observed: 8.21 ft at 6:00AM Mar 27, 2023Highest Observation: 8.22 ft at 8:00AM Mar 27, 2023Observed: 8.03 ft at 10:00AM Mar 27, 2023Observed: 7.93 ft at 12:00PM Mar 27, 2023Observed: 7.92 ft at 2:00PM Mar 27, 2023Observed: 7.71 ft at 4:00PM Mar 27, 2023Observed: 7.69 ft at 6:00PM Mar 27, 2023Observed: 7.63 ft at 8:00PM Mar 27, 2023Observed: 7.65 ft at 10:00PM Mar 27, 2023Observed: 7.57 ft at 12:00AM Mar 28, 2023Observed: 7.55 ft at 2:00AM Mar 28, 2023Observed: 7.53 ft at 4:00AM Mar 28, 2023Observed: 7.59 ft at 6:00AM Mar 28, 2023Observed: 7.71 ft at 8:00AM Mar 28, 2023Observed: 7.82 ft at 10:00AM Mar 28, 2023Observed: 7.81 ft at 12:00PM Mar 28, 2023Observed: 7.76 ft at 2:00PM Mar 28, 2023Observed: 7.46 ft at 4:00PM Mar 28, 2023Observed: 7.35 ft at 6:00PM Mar 28, 2023Observed: 7.29 ft at 8:00PM Mar 28, 2023Observed: 7.28 ft at 10:00PM Mar 28, 2023Observed: 7.29 ft at 12:00AM Mar 29, 2023Observed: 7.26 ft at 2:00AM Mar 29, 2023Observed: 7.25 ft at 4:00AM Mar 29, 2023Observed: 7.23 ft at 6:00AM Mar 29, 2023Observed: 7.39 ft at 8:00AM Mar 29, 2023Observed: 7.59 ft at 10:00AM Mar 29, 2023Observed: 7.65 ft at 12:00PM Mar 29, 2023Observed: 7.67 ft at 2:00PM Mar 29, 2023Observed: 7.73 ft at 4:00PM Mar 29, 2023Observed: 7.53 ft at 6:00PM Mar 29, 2023Observed: 7.51 ft at 8:00PM Mar 29, 2023Observed: 7.52 ft at 10:00PM Mar 29, 2023Observed: 7.47 ft at 12:00AM Mar 30, 2023Observed: 7.45 ft at 2:00AM Mar 30, 2023Observed: 7.48 ft at 4:00AM Mar 30, 2023Highest Forecast: 7.3 ft 7:00AM Mar 30, 2023Highest Forecast: 7.3 ft 1:00PM Mar 30, 2023Highest Forecast: 7.3 ft 7:00PM Mar 30, 2023Highest Forecast: 7.3 ft 1:00AM Mar 31, 2023Highest Forecast: 7.3 ft 7:00AM Mar 31, 2023Highest Forecast: 7.3 ft 1:00PM Mar 31, 2023Highest Forecast: 7.3 ft 7:00PM Mar 31, 2023Highest Forecast: 7.3 ft 1:00AM Apr 01, 2023Highest Forecast: 7.3 ft 7:00AM Apr 01, 2023Highest Forecast: 7.3 ft 1:00PM Apr 01, 2023Highest Forecast: 7.3 ft 7:00PM Apr 01, 2023Highest Forecast: 7.3 ft 1:00AM Apr 02, 2023Highest Forecast: 7.3 ft 7:00AM Apr 02, 2023Highest Forecast: 7.3 ft 1:00PM Apr 02, 2023Forecast: 7.2 ft 7:00PM Apr 02, 2023Forecast: 7.2 ft 1:00AM Apr 03, 2023Forecast: 7.2 ft 7:00AM Apr 03, 2023Forecast: 7.2 ft 1:00PM Apr 03, 2023Forecast: 7.2 ft 7:00PM Apr 03, 2023Forecast: 7.2 ft 1:00AM Apr 04, 2023Highest Forecast: 7.3 ft 7:00AM Apr 04, 2023Highest Forecast: 7.3 ft 1:00PM Apr 04, 2023Highest Forecast: 7.3 ft 7:00PM Apr 04, 2023Highest Forecast: 7.3 ft 1:00AM Apr 05, 2023Highest Forecast: 7.3 ft 7:00AM Apr 05, 2023U.S. Army Corps of EngineersEOKI4(plotting HTIRZ) Graph Created (5:18AM Mar 30, 2023)ObservedForecast (issued 8:37PM Mar 29)Latest observed value: 7.48 ft at 4:00 AM CDT 30-Mar-2023. Flood Stage is 16 ft
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Tabular Data (UTC)
Tabular Data (CDT)
XML Data
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Datum: Not Available
Metadata
NOTE: River forecasts for this location take into account past precipitation and the precipitation amounts expected approximately 48 hours into the future from the forecast issuance time.

NOTE: Gauge reading may be affected by ice.

NOTE: Forecasts for the Mississippi River at Keokuk are issued routinely year-round.

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Upstream Gauge - at Fort Madison Upstream Gauge Downstream Gauge Downstream Gauge - at Gregory Landing
Flood Categories (in feet)
Major Flood Stage: 19
Moderate Flood Stage: 17.5
Flood Stage: 16
Action Stage: 14
Low Stage (in feet): -9999

Historic Crests
(1) 27.58 ft on 07/10/1993
(2) 26.95 ft on 06/17/2008
(3) 25.60 ft on 05/30/2019
(4) 23.50 ft on 05/02/2019 (P)
(5) 23.50 ft on 04/23/1973
(6) 23.38 ft on 07/07/2014
(7) 22.94 ft on 05/14/2001
(8) 22.20 ft on 04/20/2013
(9) 22.14 ft on 05/01/1965
(10) 21.83 ft on 04/04/1960
Show More Historic Crests

(P): Preliminary values subject to further review.

Recent Crests
(1) 25.60 ft on 05/30/2019
(2) 23.50 ft on 05/02/2019 (P)
(3) 19.78 ft on 04/11/2019 (P)
(4) 16.91 ft on 09/11/2018
(5) 16.19 ft on 06/02/2017
(6) 16.84 ft on 12/28/2015
(7) 16.50 ft on 06/27/2015
(8) 23.38 ft on 07/07/2014
(9) 22.20 ft on 04/20/2013
(10) 18.92 ft on 06/15/2011
Show More Recent Crests

(P): Preliminary values subject to further review.

Low Water Records
Currently none available.

For more information on your flood risk go to www.floodsmart.gov.
Zoom Level:16
KML Image
Gauge LocationGauge Map Marker
 Disclaimer
Latitude/Longitude Disclaimer: The gauge location shown in the above map is the approximate location based on the latitude/longitude coordinates provided to the NWS by the gauge owner.
Flood Impacts & Photos Collapse
If you notice any errors in the below information, please contact our Webmaster
30 Water reaches the top of the Keokuk city levee that protects industrial area along Mississippi Drive south of Victory Park.
27 Water affects residences in Nauvoo and reaches the top of the levee protecting the historical Nauvoo House.
25.5 Water affects the railroad tracks in downtown Keokuk.
24 Water affects low lying buildings in Hamilton and affects U.S. Highway 136 near the Mississippi River bridge. Water also affects Keokuks sewage treatment plant.
23 Water affects Illinois Highway 96 between Nauvoo and Hamilton.
22 Water affects the Warsaw water treatment plant.
21.2 Lock and Dam 19 is closed.
21 Water affects Keokuks Victory Drive.
20 Water affects the industrial area in Keokuk south of the city levee and affects the parking lot at Victory Park as well as much of the park. In Alexandria, water affects U.S. Highway 61 in several places.
19.5 Water reaches critical stage for Des Moines and Mississippi Levee District Number 1.
19 Water affects low lying buildings in Warsaw and affects County Road 12.
18.4 U.S. Highway 61 closes at the bridge over the Des Moines River between Alexandria and Keokuk.
16 Water affects low lying buildings in rural areas. Water affects the railroad tracks in Alexandria.
About This Location Collapse

Latitude: 40.397500° N, Longitude: 91.374167° W, Horizontal Datum: NAD83/WGS84

River Stage
Reference Frame		 Gauge Height Flood Stage Uses
NWS stage 0 ft 16 ft Interpreting hydrographs and NWS watch, warnings, and forecasts, and inundation maps
Vertical Datum Elevation
(gauge height = 0)		 Elevation
(gauge height = flood stage)		 Elevation information source
NAVD88 Not Available Not Available Survey grade GPS equipment, FEMA flood plain maps, newer USGS topographic maps
NGVD 29 Not Available Not Available Older USGS topographic maps, NGVD29 benchmarks
MSL Not Available Not Available Older USGS topographic maps, MSL benchmarks
Other 477.83 ft 493.83 ft  

Current/Historical Observations:
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The National Weather Service prepares its forecasts and other services in collaboration with agencies like the US Geological Survey, US Bureau of Reclamation, US Army Corps of Engineers, Natural Resource Conservation Service, National Park Service, ALERT Users Group, Bureau of Indian Affairs, and many state and local emergency managers across the country. For details, please click here.
NWS Information
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