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Hydrograph River at a Glance Download
Mississippi River at Keokuk Tailwater (ft)Flow (kcfs)Observed: 7.04 ft at 4:00PM Apr 24, 2015Observed: 7.03 ft at 6:00PM Apr 24, 2015Observed: 6.72 ft at 8:00PM Apr 24, 2015Observed: 6.4 ft at 10:00PM Apr 24, 2015Observed: 6.28 ft at 12:00AM Apr 25, 2015Observed: 6.24 ft at 2:00AM Apr 25, 2015Observed: 6.16 ft at 4:00AM Apr 25, 2015Observed: 6.13 ft at 6:00AM Apr 25, 2015Observed: 6.15 ft at 8:00AM Apr 25, 2015Observed: 6.23 ft at 10:00AM Apr 25, 2015Observed: 6.33 ft at 12:00PM Apr 25, 2015Observed: 6.54 ft at 2:00PM Apr 25, 2015Observed: 6.59 ft at 4:00PM Apr 25, 2015Observed: 6.62 ft at 6:00PM Apr 25, 2015Observed: 6.65 ft at 8:00PM Apr 25, 2015Observed: 6.62 ft at 10:00PM Apr 25, 2015Observed: 6.62 ft at 12:00AM Apr 26, 2015Observed: 6.72 ft at 2:00AM Apr 26, 2015Observed: 6.73 ft at 4:00AM Apr 26, 2015Observed: 6.6 ft at 6:00AM Apr 26, 2015Observed: 6.58 ft at 8:00AM Apr 26, 2015Observed: 6.41 ft at 10:00AM Apr 26, 2015Observed: 6.2 ft at 12:00PM Apr 26, 2015Observed: 6.09 ft at 2:00PM Apr 26, 2015Observed: 6.24 ft at 4:00PM Apr 26, 2015Observed: 6.43 ft at 6:00PM Apr 26, 2015Observed: 6.52 ft at 8:00PM Apr 26, 2015Observed: 6.56 ft at 10:00PM Apr 26, 2015Observed: 6.62 ft at 12:00AM Apr 27, 2015Observed: 6.66 ft at 2:00AM Apr 27, 2015Observed: 6.74 ft at 4:00AM Apr 27, 2015Observed: 6.79 ft at 6:00AM Apr 27, 2015Observed: 7.08 ft at 8:00AM Apr 27, 2015Observed: 7.19 ft at 10:00AM Apr 27, 2015Observed: 7.28 ft at 12:00PM Apr 27, 2015Highest Observation: 7.42 ft at 2:00PM Apr 27, 2015Forecast: 7.4 ft 7:00PM Apr 27, 2015Forecast: 7.5 ft 1:00AM Apr 28, 2015Forecast: 7.5 ft 7:00AM Apr 28, 2015Highest Forecast: 7.6 ft 1:00PM Apr 28, 2015Highest Forecast: 7.6 ft 7:00PM Apr 28, 2015Highest Forecast: 7.6 ft 1:00AM Apr 29, 2015Forecast: 7.5 ft 7:00AM Apr 29, 2015Forecast: 7.5 ft 1:00PM Apr 29, 2015Forecast: 7.4 ft 7:00PM Apr 29, 2015Forecast: 7.3 ft 1:00AM Apr 30, 2015Forecast: 7.3 ft 7:00AM Apr 30, 2015Forecast: 7.2 ft 1:00PM Apr 30, 2015Forecast: 7.1 ft 7:00PM Apr 30, 2015Forecast: 7 ft 1:00AM May 01, 2015Forecast: 7 ft 7:00AM May 01, 2015Forecast: 6.9 ft 1:00PM May 01, 2015Forecast: 6.8 ft 7:00PM May 01, 2015Forecast: 6.7 ft 1:00AM May 02, 2015Forecast: 6.7 ft 7:00AM May 02, 2015Forecast: 6.6 ft 1:00PM May 02, 2015Forecast: 6.6 ft 7:00PM May 02, 2015Forecast: 6.5 ft 1:00AM May 03, 2015Forecast: 6.4 ft 7:00AM May 03, 2015Forecast: 6.4 ft 1:00PM May 03, 2015Forecast: 6.3 ft 7:00PM May 03, 2015Forecast: 6.2 ft 1:00AM May 04, 2015Forecast: 6.2 ft 7:00AM May 04, 2015U.S. Army Corps of EngineersEOKI4(plotting HTIRZ) Graph Created (3:32PM Apr 27, 2015)ObservedForecast (issued 1:10PM Apr 27)Latest observed value: 7.42 ft at 2:00 PM CDT 27-Apr-2015. Flood Stage is 16 ft
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Tabular Data (UTC)
Tabular Data (CDT)
XML Data
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Datum: Not Available
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.

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

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Upstream Gauge - at Burlington 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): 0

Historic Crests
(1) 27.58 ft on 07/10/1993
(2) 26.95 ft on 06/17/2008
(3) 23.50 ft on 04/23/1973
(4) 23.44 ft on 07/07/2014 (P)
(5) 22.94 ft on 05/14/2001
(6) 22.17 ft on 04/20/2013 (P)
(7) 22.14 ft on 05/01/1965
(8) 21.83 ft on 04/04/1960
(9) 21.00 ft on 06/06/1851
(10) 20.85 ft on 05/27/1944
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(P): Preliminary values subject to further review.

Recent Crests
(1) 23.44 ft on 07/07/2014 (P)
(2) 18.54 ft on 07/03/2013 (P)
(3) 19.71 ft on 06/06/2013 (P)
(4) 16.90 ft on 05/05/2013 (P)
(5) 22.17 ft on 04/20/2013 (P)
(6) 18.92 ft on 06/15/2011
(7) 16.32 ft on 06/03/2011
(8) 16.15 ft on 05/26/2011
(9) 18.98 ft on 04/23/2011
(10) 26.95 ft on 06/17/2008
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

Zoom Level:16
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Gauge LocationGauge Map Marker
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 north of Alexandria.
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)
(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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Page last modified: 12-Feb-2015 9:35 PM
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