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Web Portal Changes: The Advanced Hydrologic Prediction Service (AHPS) hosted at will be replaced by the National Water Prediction Service (NWPS), with a target of March 2024. Existing AHPS content and features will be preserved and expanded within NWPS.

Experimental National Water Center Products: The National Hydrologic Discussion, Area Hydrologic Discussion, and Flood Hazard Outlook, and real-time geospatial services depicting River Forecast Center and National Water Model forecasts, continue to be accessible via, as described in the StoryMap here.

Hydrograph River at a Glance Download
Mississippi River at Guttenberg Tailwater (ft)Highest Observation: 11.9 ft at 8:00PM May 29, 2023Highest Observation: 11.9 ft at 9:00PM May 29, 2023Observed: 11.89 ft at 10:00PM May 29, 2023Observed: 11.88 ft at 11:00PM May 29, 2023Observed: 11.87 ft at 12:00AM May 30, 2023Observed: 11.86 ft at 1:00AM May 30, 2023Observed: 11.84 ft at 2:00AM May 30, 2023Observed: 11.85 ft at 3:00AM May 30, 2023Observed: 11.84 ft at 4:00AM May 30, 2023Observed: 11.83 ft at 5:00AM May 30, 2023Observed: 11.81 ft at 6:00AM May 30, 2023Observed: 11.81 ft at 7:00AM May 30, 2023Observed: 11.8 ft at 8:00AM May 30, 2023Observed: 11.79 ft at 9:00AM May 30, 2023Observed: 11.77 ft at 10:00AM May 30, 2023Observed: 11.76 ft at 11:00AM May 30, 2023Observed: 11.74 ft at 12:00PM May 30, 2023Observed: 11.75 ft at 1:00PM May 30, 2023Observed: 11.73 ft at 2:00PM May 30, 2023Observed: 11.71 ft at 3:00PM May 30, 2023Observed: 11.71 ft at 4:00PM May 30, 2023Observed: 11.69 ft at 5:00PM May 30, 2023Observed: 11.67 ft at 6:00PM May 30, 2023Observed: 11.65 ft at 7:00PM May 30, 2023Observed: 11.65 ft at 8:00PM May 30, 2023Observed: 11.63 ft at 9:00PM May 30, 2023Observed: 11.63 ft at 10:00PM May 30, 2023Observed: 11.62 ft at 11:00PM May 30, 2023Observed: 11.6 ft at 12:00AM May 31, 2023Observed: 11.6 ft at 1:00AM May 31, 2023Observed: 11.58 ft at 2:00AM May 31, 2023Observed: 11.57 ft at 3:00AM May 31, 2023Observed: 11.56 ft at 4:00AM May 31, 2023Observed: 11.55 ft at 5:00AM May 31, 2023Observed: 11.55 ft at 6:00AM May 31, 2023Observed: 11.52 ft at 7:00AM May 31, 2023Observed: 11.51 ft at 8:00AM May 31, 2023Observed: 11.5 ft at 9:00AM May 31, 2023Observed: 11.49 ft at 10:00AM May 31, 2023Observed: 11.47 ft at 11:00AM May 31, 2023Observed: 11.46 ft at 12:00PM May 31, 2023Observed: 11.43 ft at 1:00PM May 31, 2023Observed: 11.42 ft at 2:00PM May 31, 2023Observed: 11.42 ft at 3:00PM May 31, 2023Observed: 11.37 ft at 4:00PM May 31, 2023Observed: 11.36 ft at 5:00PM May 31, 2023Observed: 11.35 ft at 6:00PM May 31, 2023Observed: 11.32 ft at 9:00PM May 31, 2023Observed: 11.28 ft at 10:00PM May 31, 2023Observed: 11.28 ft at 11:00PM May 31, 2023Observed: 11.26 ft at 12:00AM Jun 01, 2023Observed: 11.22 ft at 2:00AM Jun 01, 2023Observed: 11.2 ft at 3:00AM Jun 01, 2023Observed: 11.18 ft at 4:00AM Jun 01, 2023Observed: 11.18 ft at 5:00AM Jun 01, 2023Observed: 11.16 ft at 6:00AM Jun 01, 2023Observed: 11.14 ft at 7:00AM Jun 01, 2023Observed: 11.12 ft at 8:00AM Jun 01, 2023Observed: 11.1 ft at 9:00AM Jun 01, 2023Observed: 11.1 ft at 10:00AM Jun 01, 2023Observed: 11.1 ft at 11:00AM Jun 01, 2023Observed: 11.07 ft at 12:00PM Jun 01, 2023Observed: 11.03 ft at 1:00PM Jun 01, 2023Observed: 11.04 ft at 2:00PM Jun 01, 2023Observed: 11 ft at 3:00PM Jun 01, 2023Observed: 10.96 ft at 6:00PM Jun 01, 2023Observed: 10.94 ft at 7:00PM Jun 01, 2023Highest Forecast: 10.8 ft 1:00AM Jun 02, 2023Forecast: 10.7 ft 7:00AM Jun 02, 2023Forecast: 10.6 ft 1:00PM Jun 02, 2023Forecast: 10.4 ft 7:00PM Jun 02, 2023Forecast: 10.3 ft 1:00AM Jun 03, 2023Forecast: 10.2 ft 7:00AM Jun 03, 2023Forecast: 10.1 ft 1:00PM Jun 03, 2023Forecast: 10 ft 7:00PM Jun 03, 2023Forecast: 9.9 ft 1:00AM Jun 04, 2023Forecast: 9.8 ft 7:00AM Jun 04, 2023Forecast: 9.7 ft 1:00PM Jun 04, 2023Forecast: 9.6 ft 7:00PM Jun 04, 2023Forecast: 9.5 ft 1:00AM Jun 05, 2023Forecast: 9.4 ft 7:00AM Jun 05, 2023Forecast: 9.3 ft 1:00PM Jun 05, 2023Forecast: 9.2 ft 7:00PM Jun 05, 2023Forecast: 9.1 ft 1:00AM Jun 06, 2023Forecast: 9 ft 7:00AM Jun 06, 2023Forecast: 8.9 ft 1:00PM Jun 06, 2023Forecast: 8.8 ft 7:00PM Jun 06, 2023Forecast: 8.7 ft 1:00AM Jun 07, 2023Forecast: 8.6 ft 7:00AM Jun 07, 2023Forecast: 8.5 ft 1:00PM Jun 07, 2023Forecast: 8.4 ft 7:00PM Jun 07, 2023Forecast: 8.2 ft 1:00AM Jun 08, 2023Forecast: 8.1 ft 7:00AM Jun 08, 2023Forecast: 8 ft 1:00PM Jun 08, 2023Forecast: 7.8 ft 7:00PM Jun 08, 2023USACE - Rivergages.comGTTI4(plotting HTIRG) Graph Created (7:45PM Jun 1, 2023)ObservedForecast (issued 7:07PM Jun 1)Latest observed value: 10.94 ft at 7:00 PM CDT 1-Jun-2023. Flood Stage is 15 ft
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Tabular Data (UTC)
Tabular Data (CDT)
XML Data
RSS Files
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 Guttenberg are issued routinely during the warm season, and as needed at other times of the year.

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Upstream Locations Upstream Gauge Downstream Gauge Downstream Gauge - at Dubuque (LD11)
Flood Categories (in feet)
Major Flood Stage: 21
Moderate Flood Stage: 18
Flood Stage: 15
Action Stage: 12
Low Stage (in feet): -9999

Historic Crests
(1) 23.65 ft on 04/24/1965
(2) 21.68 ft on 04/21/2001
(3) 20.98 ft on 04/28/2023 (P)
(4) 20.15 ft on 06/30/1993
(5) 19.98 ft on 04/27/2019
Show More Historic Crests

(P): Preliminary values subject to further review.

Recent Crests
(1) 20.98 ft on 04/28/2023 (P)
(2) 15.26 ft on 10/13/2019 (P)
(3) 17.59 ft on 05/31/2019
(4) 19.98 ft on 04/27/2019
(5) 16.14 ft on 05/28/2017
Show More Recent Crests

(P): Preliminary values subject to further review.

Low Water Records
(1) 2.82 ft on 02/23/1964
(2) 2.83 ft on 11/07/1976
(3) 2.98 ft on 08/01/2006
Show More Low Water Records

For more information on your flood risk go to

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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.
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If you notice any errors in the below information, please contact our Webmaster
29.6 The water begins to overtop the protective levee.
24 Water begins to flow over the lock walls and the protective earthen dikes.
23.65 Water levels reach the flood of record.
21 Flooding of some residential areas occurs. Lock and Dam 10 is closed to navigation.
20 Some basements may begin to experience flooding due to seepage, with most problems occurring on the approaches to town.
19 The water is over Island Road.
18 Sewer and street flooding begins to occur in Glen Haven, Wisconsin.
15.5 The water is over Marina Road.
15 Minor lowland flooding begins to occur.
(1) Upstream view at Guttenberg, September 28th, 2011, Stage = 11.17 ft
(2) Downstream view at Guttenberg, September 28th, 2011, Stage = 11.17 ft
About This Location Collapse

Latitude: 42.785000° N, Longitude: 91.095000° W, Horizontal Datum: NAD83/WGS84

River Stage
Reference Frame
Gauge Height Flood Stage Uses
NWS stage 0 ft 15 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 600 ft 615 ft U.S. Army Corps of Engineers utilizes the 1912 Datum

Current/Historical Observations:

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  • Link to text page with Hourly River Stage Level and Water Temperatures
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