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Hydrograph River at a Glance Download
Illinois River at Marseilles lock/dam Tailwater (ft)Flow (kcfs)Observed: 459.61 ft at 3:30PM Apr 20, 2014Observed: 459.89 ft at 4:00PM Apr 20, 2014Observed: 459.68 ft at 4:30PM Apr 20, 2014Observed: 459.58 ft at 5:00PM Apr 20, 2014Observed: 459.54 ft at 5:30PM Apr 20, 2014Observed: 459.54 ft at 6:00PM Apr 20, 2014Observed: 459.71 ft at 6:30PM Apr 20, 2014Observed: 459.54 ft at 7:00PM Apr 20, 2014Observed: 459.5 ft at 7:30PM Apr 20, 2014Observed: 459.48 ft at 8:00PM Apr 20, 2014Observed: 459.5 ft at 8:30PM Apr 20, 2014Observed: 459.54 ft at 9:00PM Apr 20, 2014Observed: 459.48 ft at 9:30PM Apr 20, 2014Observed: 459.5 ft at 10:00PM Apr 20, 2014Observed: 459.52 ft at 10:30PM Apr 20, 2014Observed: 459.45 ft at 11:00PM Apr 20, 2014Observed: 459.42 ft at 11:30PM Apr 20, 2014Observed: 459.51 ft at 12:00AM Apr 21, 2014Observed: 459.48 ft at 12:30AM Apr 21, 2014Observed: 459.46 ft at 1:00AM Apr 21, 2014Observed: 459.38 ft at 1:30AM Apr 21, 2014Observed: 459.48 ft at 2:00AM Apr 21, 2014Observed: 459.48 ft at 2:30AM Apr 21, 2014Observed: 459.5 ft at 3:00AM Apr 21, 2014Observed: 459.52 ft at 3:30AM Apr 21, 2014Observed: 459.52 ft at 4:00AM Apr 21, 2014Observed: 459.51 ft at 4:30AM Apr 21, 2014Observed: 459.61 ft at 5:00AM Apr 21, 2014Observed: 459.55 ft at 5:30AM Apr 21, 2014Observed: 459.54 ft at 6:00AM Apr 21, 2014Observed: 459.52 ft at 6:30AM Apr 21, 2014Observed: 459.54 ft at 7:00AM Apr 21, 2014Observed: 459.57 ft at 7:30AM Apr 21, 2014Observed: 459.64 ft at 8:00AM Apr 21, 2014Observed: 459.65 ft at 8:30AM Apr 21, 2014Observed: 459.67 ft at 9:00AM Apr 21, 2014Observed: 459.94 ft at 9:30AM Apr 21, 2014Observed: 459.76 ft at 10:00AM Apr 21, 2014Observed: 459.67 ft at 10:30AM Apr 21, 2014Observed: 459.66 ft at 11:00AM Apr 21, 2014Observed: 459.73 ft at 11:30AM Apr 21, 2014Observed: 459.76 ft at 12:00PM Apr 21, 2014Observed: 459.74 ft at 12:30PM Apr 21, 2014Observed: 459.74 ft at 1:00PM Apr 21, 2014Observed: 459.71 ft at 1:30PM Apr 21, 2014Observed: 459.58 ft at 2:00PM Apr 21, 2014Observed: 459.58 ft at 2:30PM Apr 21, 2014Observed: 459.63 ft at 3:00PM Apr 21, 2014Observed: 459.67 ft at 3:30PM Apr 21, 2014Observed: 459.71 ft at 4:00PM Apr 21, 2014Observed: 459.67 ft at 4:30PM Apr 21, 2014Observed: 459.65 ft at 5:00PM Apr 21, 2014Observed: 459.68 ft at 5:30PM Apr 21, 2014Observed: 459.65 ft at 6:00PM Apr 21, 2014Observed: 459.68 ft at 6:30PM Apr 21, 2014Observed: 459.69 ft at 7:00PM Apr 21, 2014Observed: 459.68 ft at 7:30PM Apr 21, 2014Observed: 459.67 ft at 8:00PM Apr 21, 2014Observed: 459.67 ft at 8:30PM Apr 21, 2014Observed: 459.69 ft at 9:00PM Apr 21, 2014Observed: 459.67 ft at 9:30PM Apr 21, 2014Observed: 459.86 ft at 10:00PM Apr 21, 2014Observed: 459.68 ft at 10:30PM Apr 21, 2014Observed: 459.8 ft at 11:00PM Apr 21, 2014Highest Observation: 460.02 ft at 11:30PM Apr 21, 2014Observed: 459.7 ft at 12:00AM Apr 22, 2014Observed: 459.71 ft at 12:30AM Apr 22, 2014Observed: 459.72 ft at 1:00AM Apr 22, 2014Observed: 459.7 ft at 1:30AM Apr 22, 2014Observed: 459.74 ft at 2:00AM Apr 22, 2014Observed: 459.8 ft at 2:30AM Apr 22, 2014Observed: 459.74 ft at 3:00AM Apr 22, 2014Observed: 459.73 ft at 3:30AM Apr 22, 2014Observed: 459.92 ft at 4:00AM Apr 22, 2014Observed: 459.76 ft at 4:30AM Apr 22, 2014Observed: 459.68 ft at 5:00AM Apr 22, 2014Observed: 459.63 ft at 5:30AM Apr 22, 2014Observed: 459.71 ft at 6:00AM Apr 22, 2014Observed: 459.64 ft at 6:30AM Apr 22, 2014Observed: 459.57 ft at 7:00AM Apr 22, 2014Observed: 459.56 ft at 7:30AM Apr 22, 2014Observed: 459.55 ft at 8:00AM Apr 22, 2014Observed: 459.54 ft at 8:30AM Apr 22, 2014Observed: 459.53 ft at 9:00AM Apr 22, 2014Observed: 459.58 ft at 9:30AM Apr 22, 2014Observed: 459.5 ft at 10:00AM Apr 22, 2014Observed: 459.61 ft at 10:30AM Apr 22, 2014Observed: 459.85 ft at 11:00AM Apr 22, 2014Observed: 459.66 ft at 11:30AM Apr 22, 2014Observed: 459.63 ft at 12:00PM Apr 22, 2014Observed: 459.65 ft at 12:30PM Apr 22, 2014Observed: 459.66 ft at 1:00PM Apr 22, 2014Observed: 459.61 ft at 1:30PM Apr 22, 2014Observed: 459.71 ft at 2:00PM Apr 22, 2014Observed: 459.61 ft at 2:30PM Apr 22, 2014Observed: 459.64 ft at 3:00PM Apr 22, 2014Observed: 459.58 ft at 3:30PM Apr 22, 2014Observed: 459.92 ft at 4:00PM Apr 22, 2014Observed: 459.67 ft at 4:30PM Apr 22, 2014Observed: 459.62 ft at 5:00PM Apr 22, 2014Observed: 459.65 ft at 5:30PM Apr 22, 2014Observed: 459.7 ft at 6:00PM Apr 22, 2014Observed: 459.74 ft at 6:30PM Apr 22, 2014Observed: 459.78 ft at 7:00PM Apr 22, 2014Observed: 459.8 ft at 7:30PM Apr 22, 2014Observed: 459.82 ft at 8:00PM Apr 22, 2014Observed: 459.78 ft at 8:30PM Apr 22, 2014Observed: 459.79 ft at 9:00PM Apr 22, 2014Observed: 459.72 ft at 9:30PM Apr 22, 2014Observed: 459.7 ft at 10:00PM Apr 22, 2014Observed: 459.69 ft at 10:30PM Apr 22, 2014Observed: 459.72 ft at 11:00PM Apr 22, 2014Observed: 459.98 ft at 11:30PM Apr 22, 2014Observed: 459.8 ft at 12:00AM Apr 23, 2014Observed: 459.76 ft at 12:30AM Apr 23, 2014Observed: 459.85 ft at 1:00AM Apr 23, 2014Observed: 459.77 ft at 1:30AM Apr 23, 2014Observed: 459.72 ft at 2:00AM Apr 23, 2014Observed: 459.77 ft at 2:30AM Apr 23, 2014Observed: 459.74 ft at 3:00AM Apr 23, 2014Observed: 459.75 ft at 3:30AM Apr 23, 2014Observed: 459.95 ft at 4:00AM Apr 23, 2014Observed: 459.8 ft at 4:30AM Apr 23, 2014Observed: 459.77 ft at 5:00AM Apr 23, 2014Observed: 459.77 ft at 5:30AM Apr 23, 2014Observed: 459.73 ft at 6:00AM Apr 23, 2014Observed: 459.7 ft at 6:30AM Apr 23, 2014Observed: 459.65 ft at 7:00AM Apr 23, 2014Observed: 459.58 ft at 7:30AM Apr 23, 2014Observed: 459.7 ft at 8:00AM Apr 23, 2014Observed: 459.49 ft at 8:30AM Apr 23, 2014Observed: 459.52 ft at 9:00AM Apr 23, 2014Observed: 459.45 ft at 9:30AM Apr 23, 2014Observed: 459.43 ft at 10:00AM Apr 23, 2014Observed: 459.44 ft at 10:30AM Apr 23, 2014Observed: 459.48 ft at 11:00AM Apr 23, 2014Observed: 459.71 ft at 11:30AM Apr 23, 2014Observed: 459.57 ft at 12:00PM Apr 23, 2014Observed: 459.52 ft at 12:30PM Apr 23, 2014Observed: 459.52 ft at 1:00PM Apr 23, 2014Observed: 459.55 ft at 1:30PM Apr 23, 2014Observed: 459.58 ft at 2:00PM Apr 23, 2014Observed: 459.58 ft at 2:30PM Apr 23, 2014Highest Forecast: 459.5 ft 7:00PM Apr 23, 2014Highest Forecast: 459.5 ft 1:00AM Apr 24, 2014Highest Forecast: 459.5 ft 7:00AM Apr 24, 2014Highest Forecast: 459.5 ft 1:00PM Apr 24, 2014Highest Forecast: 459.5 ft 7:00PM Apr 24, 2014Highest Forecast: 459.5 ft 1:00AM Apr 25, 2014Highest Forecast: 459.5 ft 7:00AM Apr 25, 2014Highest Forecast: 459.5 ft 1:00PM Apr 25, 2014Highest Forecast: 459.5 ft 7:00PM Apr 25, 2014Highest Forecast: 459.5 ft 1:00AM Apr 26, 2014Highest Forecast: 459.5 ft 7:00AM Apr 26, 2014Highest Forecast: 459.5 ft 1:00PM Apr 26, 2014Highest Forecast: 459.5 ft 7:00PM Apr 26, 2014Highest Forecast: 459.5 ft 1:00AM Apr 27, 2014Highest Forecast: 459.5 ft 7:00AM Apr 27, 2014Highest Forecast: 459.5 ft 1:00PM Apr 27, 2014Highest Forecast: 459.5 ft 7:00PM Apr 27, 2014Highest Forecast: 459.5 ft 1:00AM Apr 28, 2014Forecast: 459.4 ft 7:00AM Apr 28, 2014Forecast: 459.4 ft 1:00PM Apr 28, 2014Forecast: 459.4 ft 7:00PM Apr 28, 2014Forecast: 459.4 ft 1:00AM Apr 29, 2014Forecast: 459.4 ft 7:00AM Apr 29, 2014Forecast: 459.4 ft 1:00PM Apr 29, 2014Forecast: 459.4 ft 7:00PM Apr 29, 2014Forecast: 459.4 ft 1:00AM Apr 30, 2014Forecast: 459.4 ft 7:00AM Apr 30, 2014MMOI2(plotting HTIRG) Graph Created (3:05PM Apr 23, 2014)ObservedForecast (issued 11:17AM Apr 23)Latest observed value: 459.58 ft at 2:30 PM CDT 23-Apr-2014.
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About this graph
Tabular Data (UTC)
Tabular Data (CDT)
XML Data
RSS Files
Datum: Not Available
Metadata
NOTE: Forecasts for the Illinois River at Marseilles lock/dam are issued routinely year-round.
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Upstream Gauge - at Morris Upstream Gauge Downstream Gauge Downstream Gauge - at Ottawa
Flood Categories (in feet)
Not Available

Historical Crests
Currently none available.

Low Water Records
Currently none available.
Zoom Level: 16
Gauge Location
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.
 
About This Location Collapse

Latitude: 41.325000° N, Longitude: 88.706944° W, Horizontal Datum: NAD83/WGS84

River Stage
Reference Frame
Gauge Height Flood Stage Uses
NWS stage 0 ft Not Available 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 0 ft 485.6 ft  

Current/Historical Observations:

Additional Information Collapse
How much forecast precipitation was used for the current river forecast?
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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.
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Page last modified: 8-Apr-2014 7:35 AM
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