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Weather Forecast Office Quad Cities, IA North Central River Forecast Center

Hydrograph River at a Glance Download Weekly Chance of
Exceeding Levels		 Chance of Exceeding Levels
During Entire Period
Mississippi River at New Boston Observed crest: 3.9 ft at 8:00am Oct 03 Observed: 4.39 ft at 10:00am Sep 26 Observed: 4.41 ft at 12:00pm Sep 26 Observed: 4.4 ft at 2:00pm Sep 26 Observed: 4.4 ft at 4:00pm Sep 26 Observed: 4.38 ft at 6:00pm Sep 26 Observed: 4.39 ft at 8:00pm Sep 26 Observed: 4.46 ft at 10:00pm Sep 26 Observed: 4.5 ft at 12:00am Sep 27 Observed: 4.5 ft at 2:00am Sep 27 Observed: 4.5 ft at 4:00am Sep 27 Observed: 4.5 ft at 6:00am Sep 27 Observed: 4.51 ft at 8:00am Sep 27 Observed: 4.52 ft at 10:00am Sep 27 Observed: 4.52 ft at 12:00pm Sep 27 Observed: 4.52 ft at 2:00pm Sep 27 Observed: 4.52 ft at 4:00pm Sep 27 Observed: 4.51 ft at 6:00pm Sep 27 Observed: 4.5 ft at 8:00pm Sep 27 Observed: 4.49 ft at 10:00pm Sep 27 Observed: 4.49 ft at 12:00am Sep 28 Observed: 4.48 ft at 2:00am Sep 28 Observed: 4.47 ft at 4:00am Sep 28 Observed: 4.47 ft at 6:00am Sep 28 Observed: 4.47 ft at 8:00am Sep 28 Observed: 4.47 ft at 10:00am Sep 28 Observed: 4.45 ft at 12:00pm Sep 28 Observed: 4.45 ft at 2:00pm Sep 28 Observed: 4.45 ft at 4:00pm Sep 28 Observed: 4.45 ft at 6:00pm Sep 28 Observed: 4.44 ft at 8:00pm Sep 28 Observed: 4.44 ft at 10:00pm Sep 28 Observed: 4.44 ft at 12:00am Sep 29 Observed: 4.43 ft at 2:00am Sep 29 Observed: 4.43 ft at 4:00am Sep 29 Observed: 4.44 ft at 6:00am Sep 29 Observed: 4.46 ft at 8:00am Sep 29 Observed: 4.46 ft at 10:00am Sep 29 Observed: 4.34 ft at 12:00pm Sep 29 Observed: 4.3 ft at 2:00pm Sep 29 Observed: 4.32 ft at 4:00pm Sep 29 Observed: 4.3 ft at 6:00pm Sep 29 Observed: 4.29 ft at 8:00pm Sep 29 Observed: 4.29 ft at 10:00pm Sep 29 Observed: 4.28 ft at 12:00am Sep 30 Observed: 4.28 ft at 2:00am Sep 30 Observed: 4.28 ft at 4:00am Sep 30 Observed: 4.28 ft at 6:00am Sep 30 Observed: 4.27 ft at 8:00am Sep 30 Observed: 4.27 ft at 10:00am Sep 30 Observed: 4.21 ft at 12:00pm Sep 30 Observed: 4.17 ft at 2:00pm Sep 30 Observed: 4.16 ft at 4:00pm Sep 30 Observed: 4.15 ft at 6:00pm Sep 30 Observed: 4.22 ft at 8:00pm Sep 30 Observed: 4.18 ft at 10:00pm Sep 30 Observed: 4.18 ft at 12:00am Oct 1 Observed: 4.17 ft at 2:00am Oct 1 Observed: 4.17 ft at 4:00am Oct 1 Observed: 4.17 ft at 6:00am Oct 1 Observed: 4.2 ft at 8:00am Oct 1 Observed: 4.21 ft at 10:00am Oct 1 Observed: 4.19 ft at 12:00pm Oct 1 Observed: 4.2 ft at 2:00pm Oct 1 Observed: 4.19 ft at 4:00pm Oct 1 Observed: 4.2 ft at 6:00pm Oct 1 Observed: 4.22 ft at 8:00pm Oct 1 Observed: 4.21 ft at 10:00pm Oct 1 Observed: 4.21 ft at 12:00am Oct 2 Observed: 4.22 ft at 2:00am Oct 2 Observed: 4.22 ft at 4:00am Oct 2 Observed: 4.22 ft at 6:00am Oct 2 Observed: 4.23 ft at 8:00am Oct 2 Observed: 4.24 ft at 10:00am Oct 2 Observed: 4.23 ft at 12:00pm Oct 2 Observed: 4.1 ft at 2:00pm Oct 2 Observed: 4.09 ft at 4:00pm Oct 2 Observed: 3.96 ft at 6:00pm Oct 2 Observed: 3.95 ft at 8:00pm Oct 2 Observed: 3.94 ft at 10:00pm Oct 2 Observed: 3.94 ft at 12:00am Oct 3 Observed: 3.92 ft at 2:00am Oct 3 Observed: 3.91 ft at 4:00am Oct 3 Observed: 3.91 ft at 6:00am Oct 3 Observed: 3.9 ft at 8:00am Oct 3 Observed: 3.9 ft at 10:00am Oct 3 Observed: 3.9 ft at 12:00pm Oct 3 Observed: 3.87 ft at 2:00pm Oct 3 Observed: 3.89 ft at 4:00pm Oct 3 Observed: 3.88 ft at 6:00pm Oct 3 Observed: 3.87 ft at 8:00pm Oct 3 Observed: 3.86 ft at 10:00pm Oct 3 Observed: 3.85 ft at 12:00am Oct 4 Observed: 3.84 ft at 2:00am Oct 4 Observed: 3.83 ft at 4:00am Oct 4 Observed: 3.82 ft at 6:00am Oct 4 Observed: 3.84 ft at 8:00am Oct 4 Observed: 3.79 ft at 10:00am Oct 4 Observed: 3.82 ft at 12:00pm Oct 4 Observed: 3.84 ft at 2:00pm Oct 4 Observed: 3.79 ft at 4:00pm Oct 4 Observed: 3.8 ft at 6:00pm Oct 4 Observed: 3.78 ft at 8:00pm Oct 4 Observed: 3.75 ft at 10:00pm Oct 4 Observed: 3.78 ft at 12:00am Oct 5 Observed: 3.78 ft at 2:00am Oct 5 Observed: 3.75 ft at 4:00am Oct 5 Observed: 3.75 ft at 6:00am Oct 5 Observed: 3.76 ft at 8:00am Oct 5 Observed: 3.68 ft at 10:00am Oct 5 Observed: 3.62 ft at 12:00pm Oct 5 Observed: 3.61 ft at 2:00pm Oct 5 Observed: 3.61 ft at 4:00pm Oct 5 Observed: 3.6 ft at 6:00pm Oct 5 Observed: 3.6 ft at 8:00pm Oct 5 Observed: 3.59 ft at 10:00pm Oct 5 Observed: 3.59 ft at 12:00am Oct 6 Observed: 3.57 ft at 2:00am Oct 6 Observed: 3.6 ft at 4:00am Oct 6 Observed: 3.61 ft at 6:00am Oct 6 Observed: 3.62 ft at 8:00am Oct 6 Forecast: 3.8 ft at 1:00pm Oct 5 Forecast: 3.8 ft at 7:00pm Oct 5 Forecast: 3.7 ft at 1:00am Oct 6 Forecast: 3.7 ft at 7:00am Oct 6 Forecast: 3.7 ft at 1:00pm Oct 6 Forecast: 3.6 ft at 7:00pm Oct 6 Forecast: 3.6 ft at 1:00am Oct 7 Forecast: 3.6 ft at 7:00am Oct 7 Forecast: 3.5 ft at 1:00pm Oct 7 Forecast: 3.5 ft at 7:00pm Oct 7 Forecast: 3.5 ft at 1:00am Oct 8 Forecast: 3.4 ft at 7:00am Oct 8 Forecast: 3.4 ft at 1:00pm Oct 8 Forecast: 3.4 ft at 7:00pm Oct 8 Forecast: 3.4 ft at 1:00am Oct 9 Forecast: 3.4 ft at 7:00am Oct 9 Forecast: 3.3 ft at 1:00pm Oct 9 Forecast: 3.3 ft at 7:00pm Oct 9 Forecast: 3.3 ft at 1:00am Oct 10 Forecast: 3.3 ft at 7:00am Oct 10 Forecast: 3.3 ft at 1:00pm Oct 10 Forecast: 3.3 ft at 7:00pm Oct 10 Forecast: 3.3 ft at 1:00am Oct 11 Forecast: 3.3 ft at 7:00am Oct 11 Forecast: 3.2 ft at 1:00pm Oct 11 Forecast: 3.2 ft at 7:00pm Oct 11 Forecast: 3.2 ft at 1:00am Oct 12 Forecast: 3.2 ft at 7:00am Oct 12 Graph Created (9:47am Oct 6, 2008) Observed Forecast (issued 9:43am Oct 5) U.S. Army Corps of Engineers NBOI2 (plotting HTIRZ) Gage 0 Datum: 526.57 Latest observed value: 3.62 ft at 8:00 AM CDT 6-Oct-2008. Flood Stage is 15.0 ft. Forecast data shown here are official public river forecasts. Flow (kcfs)
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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.

Reliability of the Forecast: Forecast data shown here are guidance values only. Please refer to your local NWS office.

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

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Upstream Gauge - at Muscatine Upstream Gauge Downstream Gauge Downstream Gauge - at Keithsburg

Flood Categories (in feet)
Major Flood Stage:18.5
Moderate Flood Stage:16.5
Flood Stage:15
Action Stage:14

Historical Crests
(1) 25.90 ft on 07/09/1993
(2) 25.05 ft on 06/17/2008
(3) 23.14 ft on 04/28/1965
(4) 22.46 ft on 04/25/2001
(5) 21.83 ft on 05/01/2008
(6) 21.73 ft on 04/25/1973
(7) 19.76 ft on 04/26/1969
(8) 19.70 ft on 05/08/1975
(9) 19.67 ft on 04/21/1997
(10) 19.61 ft on 04/28/1951

Low Water Records
(1) -1.8 ft on 08/12/1936
(2) -1.7 ft on 12/02/1937
(3) -0.6 ft on 09/09/1937
(4) 0.5 ft on 01/01/1940
(5) 0.6 ft on 12/30/1939

 Mississippi River at New Boston location map

Flood Impacts Collapse
20.6 The Lake Odessa levee overtops.

About This Location Collapse
Latitude: 41.192000° N, Longitude: 91.058000° W, Horizontal Datum: NAD83

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)		 Elevation
(gauge height = flood stage)		 Elevation information source
NAVD88 N/A N/A Survey grade GPS equipment, FEMA flood plain maps, newer USGS topographic maps
NGVD 29 N/A N/A Older USGS topographic maps, NGVD29 benchmarks
MSL N/A N/A Older USGS topographic maps, MSL benchmarks
Other 526.57 ft 541.57 ft  

Other Data Sources:
Corps of Engineers (COE) Info for New Boston

Additional Information Collapse
How low could the river get?

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Hydrologic Resources
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Collaborative Agencies Collapse
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
National Weather Service
Quad Cities Weather Forecast Office
9050 Harrison Street
Davenport, IA 52806-7326
(563) 386-3976
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