Skip Navigation Link weather.gov  
NOAA logo - Click to go to the NOAA homepage National Weather Service NWS logo - Click to go to the NWS homepage
Advanced Hydrologic Prediction Service
Image background of Navigation bar Left
Bookmark and Share Navigation Bar End Cap

  
 
Hydrograph River at a Glance Download
Illinois River at Marseilles Lock & Dam (tailwater) Tailwater (ft)Flow (kcfs)Observed: 459.38 ft at 8:30AM Nov 20, 2021Observed: 459.26 ft at 9:00AM Nov 20, 2021Observed: 459.26 ft at 9:30AM Nov 20, 2021Observed: 459.25 ft at 10:00AM Nov 20, 2021Observed: 459.24 ft at 10:30AM Nov 20, 2021Observed: 459.47 ft at 11:00AM Nov 20, 2021Observed: 459.28 ft at 11:30AM Nov 20, 2021Observed: 459.25 ft at 12:00PM Nov 20, 2021Observed: 459.13 ft at 12:30PM Nov 20, 2021Observed: 459.12 ft at 1:00PM Nov 20, 2021Observed: 459.26 ft at 1:30PM Nov 20, 2021Observed: 459.09 ft at 2:00PM Nov 20, 2021Observed: 459.03 ft at 2:30PM Nov 20, 2021Observed: 459.1 ft at 3:00PM Nov 20, 2021Observed: 459.14 ft at 3:30PM Nov 20, 2021Observed: 459.12 ft at 4:00PM Nov 20, 2021Observed: 459.18 ft at 4:30PM Nov 20, 2021Observed: 459.17 ft at 5:00PM Nov 20, 2021Observed: 459.2 ft at 5:30PM Nov 20, 2021Observed: 459.33 ft at 6:00PM Nov 20, 2021Observed: 459.42 ft at 6:30PM Nov 20, 2021Observed: 459.48 ft at 7:00PM Nov 20, 2021Observed: 459.44 ft at 7:30PM Nov 20, 2021Observed: 459.44 ft at 8:00PM Nov 20, 2021Observed: 459.45 ft at 8:30PM Nov 20, 2021Observed: 459.5 ft at 9:00PM Nov 20, 2021Observed: 459.54 ft at 9:30PM Nov 20, 2021Observed: 459.55 ft at 10:00PM Nov 20, 2021Observed: 459.55 ft at 10:30PM Nov 20, 2021Observed: 459.57 ft at 11:00PM Nov 20, 2021Observed: 459.58 ft at 11:30PM Nov 20, 2021Observed: 459.58 ft at 12:00AM Nov 21, 2021Observed: 459.58 ft at 12:30AM Nov 21, 2021Observed: 459.51 ft at 1:00AM Nov 21, 2021Observed: 459.49 ft at 1:30AM Nov 21, 2021Observed: 459.48 ft at 2:00AM Nov 21, 2021Observed: 459.55 ft at 2:30AM Nov 21, 2021Observed: 459.55 ft at 3:00AM Nov 21, 2021Observed: 459.51 ft at 3:30AM Nov 21, 2021Observed: 459.53 ft at 4:00AM Nov 21, 2021Observed: 459.41 ft at 4:30AM Nov 21, 2021Observed: 459.48 ft at 5:00AM Nov 21, 2021Observed: 459.38 ft at 5:30AM Nov 21, 2021Observed: 459.37 ft at 6:00AM Nov 21, 2021Observed: 459.42 ft at 6:30AM Nov 21, 2021Observed: 459.43 ft at 7:00AM Nov 21, 2021Observed: 459.42 ft at 7:30AM Nov 21, 2021Observed: 459.39 ft at 8:00AM Nov 21, 2021Observed: 459.35 ft at 8:30AM Nov 21, 2021Observed: 459.36 ft at 9:00AM Nov 21, 2021Observed: 459.33 ft at 9:30AM Nov 21, 2021Observed: 459.35 ft at 10:00AM Nov 21, 2021Observed: 459.44 ft at 10:30AM Nov 21, 2021Observed: 459.33 ft at 11:00AM Nov 21, 2021Observed: 459.35 ft at 11:30AM Nov 21, 2021Observed: 459.31 ft at 12:00PM Nov 21, 2021Observed: 459.25 ft at 12:30PM Nov 21, 2021Observed: 459.24 ft at 1:00PM Nov 21, 2021Observed: 459.14 ft at 1:30PM Nov 21, 2021Observed: 459.18 ft at 2:00PM Nov 21, 2021Observed: 459.24 ft at 2:30PM Nov 21, 2021Observed: 459.21 ft at 3:00PM Nov 21, 2021Observed: 459.24 ft at 3:30PM Nov 21, 2021Observed: 459.21 ft at 4:00PM Nov 21, 2021Observed: 459.28 ft at 4:30PM Nov 21, 2021Observed: 459.34 ft at 5:00PM Nov 21, 2021Observed: 459.28 ft at 5:30PM Nov 21, 2021Observed: 459.19 ft at 6:00PM Nov 21, 2021Observed: 459.21 ft at 6:30PM Nov 21, 2021Observed: 459.18 ft at 7:00PM Nov 21, 2021Observed: 459.13 ft at 7:30PM Nov 21, 2021Observed: 459.32 ft at 8:00PM Nov 21, 2021Observed: 459.14 ft at 8:30PM Nov 21, 2021Observed: 459.11 ft at 9:00PM Nov 21, 2021Observed: 459.24 ft at 9:30PM Nov 21, 2021Observed: 459.48 ft at 10:00PM Nov 21, 2021Observed: 459.32 ft at 10:30PM Nov 21, 2021Observed: 459.3 ft at 11:00PM Nov 21, 2021Observed: 459.28 ft at 11:30PM Nov 21, 2021Observed: 459.3 ft at 12:00AM Nov 22, 2021Observed: 459.33 ft at 12:30AM Nov 22, 2021Observed: 459.32 ft at 1:00AM Nov 22, 2021Observed: 459.31 ft at 1:30AM Nov 22, 2021Observed: 459.3 ft at 2:00AM Nov 22, 2021Observed: 459.28 ft at 2:30AM Nov 22, 2021Observed: 459.3 ft at 3:00AM Nov 22, 2021Observed: 459.32 ft at 3:30AM Nov 22, 2021Observed: 459.3 ft at 4:00AM Nov 22, 2021Observed: 459.31 ft at 4:30AM Nov 22, 2021Observed: 459.32 ft at 5:00AM Nov 22, 2021Observed: 459.33 ft at 5:30AM Nov 22, 2021Observed: 459.34 ft at 6:00AM Nov 22, 2021Observed: 459.34 ft at 6:30AM Nov 22, 2021Observed: 459.34 ft at 7:00AM Nov 22, 2021Observed: 459.34 ft at 7:30AM Nov 22, 2021Observed: 459.44 ft at 8:00AM Nov 22, 2021Observed: 459.35 ft at 8:30AM Nov 22, 2021Observed: 459.38 ft at 9:00AM Nov 22, 2021Observed: 459.38 ft at 9:30AM Nov 22, 2021Observed: 459.38 ft at 10:00AM Nov 22, 2021Observed: 459.4 ft at 10:30AM Nov 22, 2021Observed: 459.43 ft at 11:00AM Nov 22, 2021Highest Observation: 459.73 ft at 11:30AM Nov 22, 2021Observed: 459.54 ft at 12:00PM Nov 22, 2021Observed: 459.45 ft at 12:30PM Nov 22, 2021Observed: 459.57 ft at 1:00PM Nov 22, 2021Observed: 459.4 ft at 1:30PM Nov 22, 2021Observed: 459.43 ft at 2:00PM Nov 22, 2021Observed: 459.38 ft at 2:30PM Nov 22, 2021Observed: 459.35 ft at 3:00PM Nov 22, 2021Observed: 459.28 ft at 3:30PM Nov 22, 2021Observed: 459.26 ft at 4:00PM Nov 22, 2021Observed: 459.3 ft at 4:30PM Nov 22, 2021Observed: 459.2 ft at 5:00PM Nov 22, 2021Observed: 459.23 ft at 5:30PM Nov 22, 2021Observed: 459.23 ft at 6:00PM Nov 22, 2021Observed: 459.25 ft at 6:30PM Nov 22, 2021Observed: 459.26 ft at 7:00PM Nov 22, 2021Observed: 459.32 ft at 7:30PM Nov 22, 2021Observed: 459.37 ft at 8:00PM Nov 22, 2021Observed: 459.34 ft at 8:30PM Nov 22, 2021Observed: 459.38 ft at 9:00PM Nov 22, 2021Observed: 459.3 ft at 9:30PM Nov 22, 2021Observed: 459.31 ft at 10:00PM Nov 22, 2021Observed: 459.28 ft at 10:30PM Nov 22, 2021Observed: 459.28 ft at 11:00PM Nov 22, 2021Observed: 459.3 ft at 11:30PM Nov 22, 2021Observed: 459.26 ft at 12:00AM Nov 23, 2021Observed: 459.26 ft at 12:30AM Nov 23, 2021Observed: 459.26 ft at 1:00AM Nov 23, 2021Observed: 459.25 ft at 1:30AM Nov 23, 2021Observed: 459.25 ft at 2:00AM Nov 23, 2021Observed: 459.24 ft at 2:30AM Nov 23, 2021Observed: 459.18 ft at 3:00AM Nov 23, 2021Observed: 459.15 ft at 3:30AM Nov 23, 2021Observed: 459.03 ft at 4:00AM Nov 23, 2021Observed: 458.96 ft at 4:30AM Nov 23, 2021Observed: 458.95 ft at 5:00AM Nov 23, 2021Observed: 458.96 ft at 5:30AM Nov 23, 2021Observed: 458.95 ft at 6:00AM Nov 23, 2021Observed: 459.02 ft at 6:30AM Nov 23, 2021Observed: 458.93 ft at 7:00AM Nov 23, 2021Observed: 458.92 ft at 7:30AM Nov 23, 2021Observed: 458.82 ft at 8:00AM Nov 23, 2021Observed: 458.81 ft at 8:30AM Nov 23, 2021Observed: 458.84 ft at 9:00AM Nov 23, 2021Observed: 458.85 ft at 9:30AM Nov 23, 2021Observed: 458.81 ft at 10:00AM Nov 23, 2021Observed: 458.75 ft at 10:30AM Nov 23, 2021Observed: 458.83 ft at 11:00AM Nov 23, 2021Observed: 458.87 ft at 11:30AM Nov 23, 2021Observed: 459 ft at 12:00PM Nov 23, 2021Observed: 459.01 ft at 12:30PM Nov 23, 2021Observed: 459.16 ft at 1:00PM Nov 23, 2021Observed: 459.36 ft at 1:30PM Nov 23, 2021Observed: 459.3 ft at 2:00PM Nov 23, 2021Observed: 459.33 ft at 2:30PM Nov 23, 2021Observed: 459.33 ft at 3:00PM Nov 23, 2021Observed: 459.28 ft at 3:30PM Nov 23, 2021Observed: 459.26 ft at 4:00PM Nov 23, 2021Observed: 459.26 ft at 4:30PM Nov 23, 2021Observed: 459.38 ft at 5:00PM Nov 23, 2021Observed: 459.23 ft at 5:30PM Nov 23, 2021Observed: 459.39 ft at 6:00PM Nov 23, 2021Observed: 459.42 ft at 6:30PM Nov 23, 2021Observed: 459.41 ft at 7:00PM Nov 23, 2021Observed: 459.4 ft at 7:30PM Nov 23, 2021Observed: 459.44 ft at 8:00PM Nov 23, 2021Observed: 459.4 ft at 8:30PM Nov 23, 2021Observed: 459.41 ft at 9:00PM Nov 23, 2021Observed: 459.45 ft at 9:30PM Nov 23, 2021Observed: 459.48 ft at 10:00PM Nov 23, 2021Observed: 459.44 ft at 10:30PM Nov 23, 2021Observed: 459.38 ft at 11:00PM Nov 23, 2021Observed: 459.39 ft at 11:30PM Nov 23, 2021Observed: 459.38 ft at 12:00AM Nov 24, 2021Observed: 459.38 ft at 12:30AM Nov 24, 2021Observed: 459.26 ft at 1:00AM Nov 24, 2021Observed: 459.38 ft at 1:30AM Nov 24, 2021Observed: 459.4 ft at 2:00AM Nov 24, 2021Observed: 459.44 ft at 2:30AM Nov 24, 2021Observed: 459.4 ft at 3:00AM Nov 24, 2021Observed: 459.41 ft at 3:30AM Nov 24, 2021Observed: 459.4 ft at 4:00AM Nov 24, 2021Observed: 459.43 ft at 4:30AM Nov 24, 2021Observed: 459.43 ft at 5:00AM Nov 24, 2021Observed: 459.42 ft at 5:30AM Nov 24, 2021Observed: 459.43 ft at 6:00AM Nov 24, 2021Observed: 459.43 ft at 6:30AM Nov 24, 2021Observed: 459.42 ft at 7:00AM Nov 24, 2021Observed: 459.42 ft at 7:30AM Nov 24, 2021Observed: 459.43 ft at 8:00AM Nov 24, 2021Observed: 459.45 ft at 8:30AM Nov 24, 2021Observed: 459.46 ft at 9:00AM Nov 24, 2021Observed: 459.45 ft at 9:30AM Nov 24, 2021Observed: 459.46 ft at 10:00AM Nov 24, 2021Observed: 459.46 ft at 10:30AM Nov 24, 2021Observed: 459.44 ft at 11:00AM Nov 24, 2021Observed: 459.49 ft at 11:30AM Nov 24, 2021Observed: 459.46 ft at 12:00PM Nov 24, 2021Observed: 459.42 ft at 12:30PM Nov 24, 2021Observed: 459.42 ft at 1:00PM Nov 24, 2021Observed: 459.4 ft at 1:30PM Nov 24, 2021Observed: 459.38 ft at 2:00PM Nov 24, 2021Observed: 459.52 ft at 2:30PM Nov 24, 2021Observed: 459.38 ft at 3:00PM Nov 24, 2021Observed: 459.36 ft at 3:30PM Nov 24, 2021Observed: 459.33 ft at 4:00PM Nov 24, 2021Observed: 459.28 ft at 4:30PM Nov 24, 2021Observed: 459.25 ft at 5:00PM Nov 24, 2021Observed: 459.3 ft at 5:30PM Nov 24, 2021Observed: 459.28 ft at 6:00PM Nov 24, 2021Observed: 459.23 ft at 6:30PM Nov 24, 2021Observed: 459.5 ft at 7:00PM Nov 24, 2021Observed: 459.26 ft at 7:30PM Nov 24, 2021Observed: 459.26 ft at 8:00PM Nov 24, 2021Observed: 459.24 ft at 8:30PM Nov 24, 2021Observed: 459.25 ft at 9:00PM Nov 24, 2021Observed: 459.28 ft at 9:30PM Nov 24, 2021Observed: 459.3 ft at 10:00PM Nov 24, 2021Observed: 459.3 ft at 10:30PM Nov 24, 2021Observed: 459.44 ft at 11:00PM Nov 24, 2021Observed: 459.22 ft at 11:30PM Nov 24, 2021Observed: 459.07 ft at 12:00AM Nov 25, 2021Observed: 459.08 ft at 12:30AM Nov 25, 2021Observed: 459.04 ft at 1:00AM Nov 25, 2021Observed: 459.02 ft at 1:30AM Nov 25, 2021Observed: 459.04 ft at 2:00AM Nov 25, 2021Observed: 459.08 ft at 2:30AM Nov 25, 2021Observed: 459.07 ft at 3:00AM Nov 25, 2021Observed: 459.09 ft at 3:30AM Nov 25, 2021Observed: 459.1 ft at 4:00AM Nov 25, 2021Observed: 459.09 ft at 4:30AM Nov 25, 2021Observed: 459.1 ft at 5:00AM Nov 25, 2021Observed: 459.1 ft at 5:30AM Nov 25, 2021Observed: 459.1 ft at 6:00AM Nov 25, 2021Observed: 459.11 ft at 6:30AM Nov 25, 2021Observed: 459.18 ft at 7:00AM Nov 25, 2021Observed: 459.1 ft at 7:30AM Nov 25, 2021Observed: 459.29 ft at 8:00AM Nov 25, 2021Observed: 458.99 ft at 8:30AM Nov 25, 2021Observed: 459.08 ft at 9:00AM Nov 25, 2021Observed: 459.1 ft at 9:30AM Nov 25, 2021Observed: 459.13 ft at 10:00AM Nov 25, 2021Observed: 459.24 ft at 10:30AM Nov 25, 2021Observed: 459.25 ft at 11:00AM Nov 25, 2021Observed: 459.23 ft at 11:30AM Nov 25, 2021Observed: 459.22 ft at 12:00PM Nov 25, 2021Observed: 459.22 ft at 12:30PM Nov 25, 2021Observed: 459.26 ft at 1:00PM Nov 25, 2021Observed: 459.27 ft at 1:30PM Nov 25, 2021Observed: 459.38 ft at 2:00PM Nov 25, 2021Observed: 459.42 ft at 2:30PM Nov 25, 2021Observed: 459.45 ft at 3:00PM Nov 25, 2021Observed: 459.49 ft at 3:30PM Nov 25, 2021Observed: 459.58 ft at 4:00PM Nov 25, 2021Observed: 459.38 ft at 4:30PM Nov 25, 2021Observed: 459.38 ft at 5:00PM Nov 25, 2021Observed: 459.46 ft at 5:30PM Nov 25, 2021Observed: 459.38 ft at 6:00PM Nov 25, 2021Observed: 459.35 ft at 6:30PM Nov 25, 2021Observed: 459.42 ft at 7:00PM Nov 25, 2021Observed: 459.28 ft at 7:30PM Nov 25, 2021Observed: 459.29 ft at 8:00PM Nov 25, 2021Observed: 459.3 ft at 8:30PM Nov 25, 2021Observed: 459.28 ft at 9:00PM Nov 25, 2021Observed: 459.6 ft at 9:30PM Nov 25, 2021Observed: 459.35 ft at 10:00PM Nov 25, 2021Observed: 459.43 ft at 10:30PM Nov 25, 2021Observed: 459.33 ft at 11:00PM Nov 25, 2021Observed: 459.3 ft at 11:30PM Nov 25, 2021Observed: 459.33 ft at 12:00AM Nov 26, 2021Observed: 459.3 ft at 12:30AM Nov 26, 2021Observed: 459.33 ft at 1:00AM Nov 26, 2021Observed: 459.33 ft at 1:30AM Nov 26, 2021Observed: 459.19 ft at 2:00AM Nov 26, 2021Observed: 459.1 ft at 2:30AM Nov 26, 2021Observed: 459.19 ft at 3:00AM Nov 26, 2021Observed: 459.25 ft at 3:30AM Nov 26, 2021Observed: 459.26 ft at 4:00AM Nov 26, 2021Observed: 459.28 ft at 4:30AM Nov 26, 2021Observed: 459.28 ft at 5:00AM Nov 26, 2021Observed: 459.3 ft at 5:30AM Nov 26, 2021Observed: 459.25 ft at 6:00AM Nov 26, 2021Observed: 459.2 ft at 6:30AM Nov 26, 2021Observed: 459 ft at 7:00AM Nov 26, 2021Observed: 459.34 ft at 7:30AM Nov 26, 2021Observed: 459.17 ft at 8:00AM Nov 26, 2021Observed: 459.16 ft at 8:30AM Nov 26, 2021Observed: 459.19 ft at 9:00AM Nov 26, 2021Observed: 459.17 ft at 9:30AM Nov 26, 2021Observed: 459.14 ft at 10:00AM Nov 26, 2021Observed: 459.14 ft at 10:30AM Nov 26, 2021Observed: 459.13 ft at 11:00AM Nov 26, 2021Observed: 459.12 ft at 11:30AM Nov 26, 2021Observed: 459.12 ft at 12:00PM Nov 26, 2021Observed: 459.15 ft at 12:30PM Nov 26, 2021Observed: 459.13 ft at 1:00PM Nov 26, 2021Observed: 459.33 ft at 1:30PM Nov 26, 2021Observed: 459.16 ft at 2:00PM Nov 26, 2021Observed: 459.13 ft at 2:30PM Nov 26, 2021Observed: 459.16 ft at 3:00PM Nov 26, 2021Observed: 459.17 ft at 3:30PM Nov 26, 2021Observed: 459.15 ft at 4:00PM Nov 26, 2021Observed: 459.11 ft at 4:30PM Nov 26, 2021Observed: 459.1 ft at 5:00PM Nov 26, 2021Observed: 459.09 ft at 5:30PM Nov 26, 2021Observed: 459.1 ft at 6:00PM Nov 26, 2021Observed: 459.1 ft at 6:30PM Nov 26, 2021Observed: 459.1 ft at 7:00PM Nov 26, 2021Observed: 459.08 ft at 7:30PM Nov 26, 2021Observed: 459.22 ft at 8:00PM Nov 26, 2021Observed: 459.2 ft at 8:30PM Nov 26, 2021Observed: 459.23 ft at 9:00PM Nov 26, 2021Observed: 459.21 ft at 9:30PM Nov 26, 2021Observed: 459.22 ft at 10:00PM Nov 26, 2021Observed: 459.21 ft at 10:30PM Nov 26, 2021Observed: 459.21 ft at 11:00PM Nov 26, 2021Observed: 459.22 ft at 11:30PM Nov 26, 2021Observed: 459.21 ft at 12:00AM Nov 27, 2021Observed: 459.21 ft at 12:30AM Nov 27, 2021Observed: 459.2 ft at 1:00AM Nov 27, 2021Observed: 459.21 ft at 1:30AM Nov 27, 2021Observed: 459.21 ft at 2:00AM Nov 27, 2021Observed: 459.23 ft at 2:30AM Nov 27, 2021Observed: 459.18 ft at 3:00AM Nov 27, 2021Observed: 459.21 ft at 3:30AM Nov 27, 2021Observed: 459.23 ft at 4:00AM Nov 27, 2021Observed: 459.2 ft at 4:30AM Nov 27, 2021Observed: 459.23 ft at 5:00AM Nov 27, 2021Observed: 459.23 ft at 5:30AM Nov 27, 2021Observed: 459.22 ft at 6:00AM Nov 27, 2021Observed: 459.22 ft at 6:30AM Nov 27, 2021Observed: 459.22 ft at 7:00AM Nov 27, 2021Observed: 459.21 ft at 7:30AM Nov 27, 2021Highest Forecast: 459.3 ft 12:00PM Nov 27, 2021Highest Forecast: 459.3 ft 6:00PM Nov 27, 2021Highest Forecast: 459.3 ft 12:00AM Nov 28, 2021Highest Forecast: 459.3 ft 6:00AM Nov 28, 2021Highest Forecast: 459.3 ft 12:00PM Nov 28, 2021Highest Forecast: 459.3 ft 6:00PM Nov 28, 2021Highest Forecast: 459.3 ft 12:00AM Nov 29, 2021Highest Forecast: 459.3 ft 6:00AM Nov 29, 2021Highest Forecast: 459.3 ft 12:00PM Nov 29, 2021Highest Forecast: 459.3 ft 6:00PM Nov 29, 2021Highest Forecast: 459.3 ft 12:00AM Nov 30, 2021Highest Forecast: 459.3 ft 6:00AM Nov 30, 2021Highest Forecast: 459.3 ft 12:00PM Nov 30, 2021Highest Forecast: 459.3 ft 6:00PM Nov 30, 2021Highest Forecast: 459.3 ft 12:00AM Dec 01, 2021Highest Forecast: 459.3 ft 6:00AM Dec 01, 2021Highest Forecast: 459.3 ft 12:00PM Dec 01, 2021Highest Forecast: 459.3 ft 6:00PM Dec 01, 2021Highest Forecast: 459.3 ft 12:00AM Dec 02, 2021Highest Forecast: 459.3 ft 6:00AM Dec 02, 2021Highest Forecast: 459.3 ft 12:00PM Dec 02, 2021Highest Forecast: 459.3 ft 6:00PM Dec 02, 2021Highest Forecast: 459.3 ft 12:00AM Dec 03, 2021Highest Forecast: 459.3 ft 6:00AM Dec 03, 2021USGS--Water Resources of the United StatesMMOI2(plotting HTIRG) Graph Created (8:09AM Nov 27, 2021)ObservedForecast (issued 9:45AM Nov 26)Latest observed value: 459.21 ft at 7:30 AM CST 27-Nov-2021. Flood Stage is 467 ft
Printable Image
About this graph
Tabular Data (UTC)
Tabular Data (CST)
XML Data
RSS Files
Datum: NGVD29
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: Forecasts for the Illinois River at Marseilles Lock & Dam (tailwater) are issued routinely year-round.

Return to Area Map
Upstream Gauge - at Morris Upstream Gauge Downstream Gauge Downstream Gauge - at Ottawa
Flood Categories (in feet)
Major Flood Stage: 0
Moderate Flood Stage: 0
Flood Stage: 467
Action Stage: 0
Low Stage (in feet): 456.5

Historic Crests
(1) 484.74 ft on 05/03/2019
(2) 476.72 ft on 04/19/2013
(3) 475.89 ft on 09/16/2008
(4) 474.83 ft on 02/22/1997
(5) 474.70 ft on 04/09/1983
Show More Historic Crests

(P): Preliminary values subject to further review.

Recent Crests
(1) 484.74 ft on 05/03/2019
(2) 474.30 ft on 02/22/2018 (P)
(3) 469.00 ft on 05/02/2017
(4) 476.72 ft on 04/19/2013
(5) 472.33 ft on 12/29/2008
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 www.floodsmart.gov.

Zoom Level:15
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
483.5 High water levels cause Marseilles Lock to shut down.
466.7 High water levels begin to impact shipping interests along the river.
Low Water Impacts Collapse
If you notice any errors in the below information, please contact our Webmaster
456.5 Low water levels begin to impact shipping interests along the river.
About This Location Collapse

Latitude: 41.325000° N, Longitude: 88.706944° W, Horizontal Datum: Unknown

River Stage
Reference Frame
Gauge Height Flood Stage Uses
NWS stage 0 ft 467 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 467 Older USGS topographic maps, NGVD29 benchmarks
MSL Not Available Not Available Older USGS topographic maps, MSL benchmarks
Other Not Available Not Available  

Current/Historical Observations:

Additional Information Collapse
How much forecast precipitation was used for the current river forecast?
Resources Collapse
Hydrologic Resources Additional Resources
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
Chicago Weather Forecast Office
333 W. University Dr.
Romeoville, IL 60446
(815) 834-1435
Ask Questions/Webmaster
Page last modified: 2-Nov-2020 7:29 PM
Disclaimer
Credits
Glossary
Privacy Policy
About Us
Career Opportunities