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Hydrograph River at a Glance Download
Vermilion River (N-IL) at Pontiac Stage (ft)Flow (cfs)Highest Observation: 3.9 ft at 12:00AM Jul 22, 2014Observed: 3.87 ft at 12:15AM Jul 22, 2014Observed: 3.89 ft at 12:30AM Jul 22, 2014Observed: 3.87 ft at 12:45AM Jul 22, 2014Highest Observation: 3.9 ft at 1:00AM Jul 22, 2014Observed: 3.89 ft at 1:15AM Jul 22, 2014Observed: 3.88 ft at 1:30AM Jul 22, 2014Observed: 3.87 ft at 1:45AM Jul 22, 2014Observed: 3.89 ft at 2:00AM Jul 22, 2014Observed: 3.87 ft at 2:15AM Jul 22, 2014Observed: 3.88 ft at 2:30AM Jul 22, 2014Observed: 3.88 ft at 2:45AM Jul 22, 2014Observed: 3.86 ft at 3:00AM Jul 22, 2014Observed: 3.85 ft at 3:15AM Jul 22, 2014Observed: 3.87 ft at 3:30AM Jul 22, 2014Observed: 3.87 ft at 3:45AM Jul 22, 2014Observed: 3.86 ft at 4:00AM Jul 22, 2014Observed: 3.86 ft at 4:15AM Jul 22, 2014Observed: 3.86 ft at 4:30AM Jul 22, 2014Observed: 3.85 ft at 4:45AM Jul 22, 2014Observed: 3.85 ft at 5:00AM Jul 22, 2014Observed: 3.87 ft at 5:15AM Jul 22, 2014Observed: 3.87 ft at 5:30AM Jul 22, 2014Observed: 3.84 ft at 5:45AM Jul 22, 2014Observed: 3.85 ft at 6:00AM Jul 22, 2014Observed: 3.85 ft at 6:15AM Jul 22, 2014Observed: 3.84 ft at 6:30AM Jul 22, 2014Observed: 3.85 ft at 6:45AM Jul 22, 2014Observed: 3.84 ft at 7:00AM Jul 22, 2014Observed: 3.86 ft at 7:15AM Jul 22, 2014Observed: 3.88 ft at 7:30AM Jul 22, 2014Observed: 3.84 ft at 7:45AM Jul 22, 2014Observed: 3.86 ft at 8:00AM Jul 22, 2014Observed: 3.85 ft at 8:15AM Jul 22, 2014Observed: 3.85 ft at 8:30AM Jul 22, 2014Observed: 3.85 ft at 8:45AM Jul 22, 2014Observed: 3.85 ft at 9:00AM Jul 22, 2014Observed: 3.84 ft at 9:15AM Jul 22, 2014Observed: 3.83 ft at 9:30AM Jul 22, 2014Observed: 3.83 ft at 9:45AM Jul 22, 2014Observed: 3.85 ft at 10:00AM Jul 22, 2014Observed: 3.83 ft at 10:15AM Jul 22, 2014Observed: 3.83 ft at 10:30AM Jul 22, 2014Observed: 3.84 ft at 10:45AM Jul 22, 2014Observed: 3.82 ft at 11:00AM Jul 22, 2014Observed: 3.84 ft at 11:15AM Jul 22, 2014Observed: 3.82 ft at 11:30AM Jul 22, 2014Observed: 3.82 ft at 11:45AM Jul 22, 2014Observed: 3.82 ft at 12:00PM Jul 22, 2014Observed: 3.82 ft at 12:15PM Jul 22, 2014Observed: 3.84 ft at 12:30PM Jul 22, 2014Observed: 3.84 ft at 12:45PM Jul 22, 2014Observed: 3.81 ft at 1:00PM Jul 22, 2014Observed: 3.84 ft at 1:15PM Jul 22, 2014Observed: 3.82 ft at 1:30PM Jul 22, 2014Observed: 3.84 ft at 1:45PM Jul 22, 2014Observed: 3.83 ft at 2:00PM Jul 22, 2014Observed: 3.83 ft at 2:15PM Jul 22, 2014Observed: 3.83 ft at 2:30PM Jul 22, 2014Observed: 3.83 ft at 2:45PM Jul 22, 2014Observed: 3.82 ft at 3:00PM Jul 22, 2014Observed: 3.84 ft at 3:15PM Jul 22, 2014Observed: 3.82 ft at 3:30PM Jul 22, 2014Observed: 3.82 ft at 3:45PM Jul 22, 2014Observed: 3.83 ft at 4:00PM Jul 22, 2014Observed: 3.81 ft at 4:15PM Jul 22, 2014Observed: 3.82 ft at 4:30PM Jul 22, 2014Observed: 3.8 ft at 4:45PM Jul 22, 2014Observed: 3.8 ft at 5:00PM Jul 22, 2014Observed: 3.8 ft at 5:15PM Jul 22, 2014Observed: 3.79 ft at 5:30PM Jul 22, 2014Observed: 3.79 ft at 5:45PM Jul 22, 2014Observed: 3.79 ft at 6:00PM Jul 22, 2014Observed: 3.78 ft at 6:15PM Jul 22, 2014Observed: 3.78 ft at 6:30PM Jul 22, 2014Observed: 3.8 ft at 6:45PM Jul 22, 2014Observed: 3.79 ft at 7:00PM Jul 22, 2014Observed: 3.8 ft at 7:15PM Jul 22, 2014Observed: 3.79 ft at 7:30PM Jul 22, 2014Observed: 3.78 ft at 7:45PM Jul 22, 2014Observed: 3.8 ft at 8:00PM Jul 22, 2014Observed: 3.8 ft at 8:15PM Jul 22, 2014Observed: 3.77 ft at 8:30PM Jul 22, 2014Observed: 3.78 ft at 8:45PM Jul 22, 2014Observed: 3.78 ft at 9:00PM Jul 22, 2014Observed: 3.78 ft at 9:15PM Jul 22, 2014Observed: 3.79 ft at 9:30PM Jul 22, 2014Observed: 3.79 ft at 9:45PM Jul 22, 2014Observed: 3.8 ft at 10:00PM Jul 22, 2014Observed: 3.76 ft at 10:15PM Jul 22, 2014Observed: 3.77 ft at 10:30PM Jul 22, 2014Observed: 3.76 ft at 10:45PM Jul 22, 2014Observed: 3.78 ft at 11:00PM Jul 22, 2014Observed: 3.78 ft at 11:15PM Jul 22, 2014Observed: 3.76 ft at 11:30PM Jul 22, 2014Observed: 3.78 ft at 11:45PM Jul 22, 2014Observed: 3.78 ft at 12:00AM Jul 23, 2014Observed: 3.78 ft at 12:15AM Jul 23, 2014Observed: 3.75 ft at 12:30AM Jul 23, 2014Observed: 3.77 ft at 12:45AM Jul 23, 2014Observed: 3.78 ft at 1:00AM Jul 23, 2014Observed: 3.76 ft at 1:15AM Jul 23, 2014Observed: 3.76 ft at 1:30AM Jul 23, 2014Observed: 3.75 ft at 1:45AM Jul 23, 2014Observed: 3.77 ft at 2:00AM Jul 23, 2014Observed: 3.76 ft at 2:15AM Jul 23, 2014Observed: 3.76 ft at 2:30AM Jul 23, 2014Observed: 3.77 ft at 2:45AM Jul 23, 2014Observed: 3.76 ft at 3:00AM Jul 23, 2014Observed: 3.77 ft at 3:15AM Jul 23, 2014Observed: 3.76 ft at 3:30AM Jul 23, 2014Observed: 3.75 ft at 3:45AM Jul 23, 2014Observed: 3.75 ft at 4:00AM Jul 23, 2014Observed: 3.75 ft at 4:15AM Jul 23, 2014Observed: 3.75 ft at 4:30AM Jul 23, 2014Observed: 3.75 ft at 4:45AM Jul 23, 2014Observed: 3.73 ft at 5:00AM Jul 23, 2014Observed: 3.74 ft at 5:15AM Jul 23, 2014Observed: 3.74 ft at 5:30AM Jul 23, 2014Observed: 3.78 ft at 5:45AM Jul 23, 2014Observed: 3.74 ft at 6:00AM Jul 23, 2014Observed: 3.75 ft at 6:15AM Jul 23, 2014Observed: 3.72 ft at 6:30AM Jul 23, 2014Observed: 3.75 ft at 6:45AM Jul 23, 2014Observed: 3.73 ft at 7:00AM Jul 23, 2014Observed: 3.72 ft at 7:15AM Jul 23, 2014Observed: 3.74 ft at 7:30AM Jul 23, 2014Observed: 3.74 ft at 7:45AM Jul 23, 2014Observed: 3.74 ft at 8:00AM Jul 23, 2014Observed: 3.73 ft at 8:15AM Jul 23, 2014Observed: 3.72 ft at 8:30AM Jul 23, 2014Observed: 3.74 ft at 8:45AM Jul 23, 2014Observed: 3.72 ft at 9:00AM Jul 23, 2014Observed: 3.72 ft at 9:15AM Jul 23, 2014Observed: 3.74 ft at 9:30AM Jul 23, 2014Observed: 3.72 ft at 9:45AM Jul 23, 2014Observed: 3.74 ft at 10:00AM Jul 23, 2014Observed: 3.7 ft at 10:15AM Jul 23, 2014Observed: 3.72 ft at 10:30AM Jul 23, 2014Observed: 3.72 ft at 10:45AM Jul 23, 2014Observed: 3.72 ft at 11:00AM Jul 23, 2014Observed: 3.73 ft at 11:15AM Jul 23, 2014Observed: 3.7 ft at 11:30AM Jul 23, 2014Observed: 3.73 ft at 11:45AM Jul 23, 2014Observed: 3.72 ft at 12:00PM Jul 23, 2014Observed: 3.74 ft at 12:15PM Jul 23, 2014Observed: 3.72 ft at 12:30PM Jul 23, 2014Observed: 3.72 ft at 12:45PM Jul 23, 2014Observed: 3.73 ft at 1:00PM Jul 23, 2014Observed: 3.73 ft at 1:15PM Jul 23, 2014Observed: 3.72 ft at 1:30PM Jul 23, 2014Observed: 3.73 ft at 1:45PM Jul 23, 2014Observed: 3.72 ft at 2:00PM Jul 23, 2014Observed: 3.72 ft at 2:15PM Jul 23, 2014Observed: 3.71 ft at 2:30PM Jul 23, 2014Observed: 3.71 ft at 2:45PM Jul 23, 2014Observed: 3.71 ft at 3:00PM Jul 23, 2014Observed: 3.7 ft at 3:15PM Jul 23, 2014Observed: 3.72 ft at 3:30PM Jul 23, 2014Observed: 3.7 ft at 3:45PM Jul 23, 2014Observed: 3.71 ft at 4:00PM Jul 23, 2014Observed: 3.7 ft at 4:15PM Jul 23, 2014Observed: 3.72 ft at 4:30PM Jul 23, 2014Observed: 3.7 ft at 4:45PM Jul 23, 2014Observed: 3.72 ft at 5:00PM Jul 23, 2014Observed: 3.72 ft at 5:15PM Jul 23, 2014Observed: 3.7 ft at 5:30PM Jul 23, 2014Observed: 3.72 ft at 5:45PM Jul 23, 2014Observed: 3.69 ft at 6:00PM Jul 23, 2014Observed: 3.72 ft at 6:15PM Jul 23, 2014Observed: 3.68 ft at 6:30PM Jul 23, 2014Observed: 3.71 ft at 6:45PM Jul 23, 2014Observed: 3.7 ft at 7:00PM Jul 23, 2014Observed: 3.69 ft at 7:15PM Jul 23, 2014Observed: 3.73 ft at 7:30PM Jul 23, 2014Observed: 3.71 ft at 7:45PM Jul 23, 2014Observed: 3.71 ft at 8:00PM Jul 23, 2014Observed: 3.7 ft at 8:15PM Jul 23, 2014Observed: 3.69 ft at 8:30PM Jul 23, 2014Observed: 3.68 ft at 8:45PM Jul 23, 2014Observed: 3.71 ft at 9:00PM Jul 23, 2014Observed: 3.7 ft at 9:15PM Jul 23, 2014Observed: 3.74 ft at 9:30PM Jul 23, 2014Observed: 3.74 ft at 9:45PM Jul 23, 2014Observed: 3.72 ft at 10:00PM Jul 23, 2014Observed: 3.73 ft at 10:15PM Jul 23, 2014Observed: 3.69 ft at 10:30PM Jul 23, 2014Observed: 3.7 ft at 10:45PM Jul 23, 2014Observed: 3.74 ft at 11:00PM Jul 23, 2014Observed: 3.72 ft at 11:15PM Jul 23, 2014Observed: 3.7 ft at 11:30PM Jul 23, 2014Observed: 3.73 ft at 11:45PM Jul 23, 2014Observed: 3.7 ft at 12:00AM Jul 24, 2014Observed: 3.72 ft at 12:15AM Jul 24, 2014Observed: 3.69 ft at 12:30AM Jul 24, 2014Observed: 3.69 ft at 12:45AM Jul 24, 2014Observed: 3.74 ft at 1:00AM Jul 24, 2014Observed: 3.67 ft at 1:15AM Jul 24, 2014Observed: 3.71 ft at 1:30AM Jul 24, 2014Observed: 3.69 ft at 1:45AM Jul 24, 2014Observed: 3.73 ft at 2:00AM Jul 24, 2014Observed: 3.72 ft at 2:15AM Jul 24, 2014Observed: 3.72 ft at 2:30AM Jul 24, 2014Observed: 3.72 ft at 2:45AM Jul 24, 2014Observed: 3.71 ft at 3:00AM Jul 24, 2014Observed: 3.69 ft at 3:15AM Jul 24, 2014Observed: 3.71 ft at 3:30AM Jul 24, 2014Observed: 3.7 ft at 3:45AM Jul 24, 2014Observed: 3.69 ft at 4:00AM Jul 24, 2014Observed: 3.67 ft at 4:15AM Jul 24, 2014Observed: 3.71 ft at 4:30AM Jul 24, 2014Observed: 3.69 ft at 4:45AM Jul 24, 2014Observed: 3.72 ft at 5:00AM Jul 24, 2014Observed: 3.67 ft at 5:15AM Jul 24, 2014Observed: 3.69 ft at 5:30AM Jul 24, 2014Observed: 3.71 ft at 5:45AM Jul 24, 2014Observed: 3.69 ft at 6:00AM Jul 24, 2014Observed: 3.69 ft at 6:15AM Jul 24, 2014Observed: 3.68 ft at 6:30AM Jul 24, 2014Observed: 3.68 ft at 6:45AM Jul 24, 2014Observed: 3.67 ft at 7:00AM Jul 24, 2014Observed: 3.68 ft at 7:15AM Jul 24, 2014Observed: 3.67 ft at 7:30AM Jul 24, 2014Observed: 3.66 ft at 7:45AM Jul 24, 2014Observed: 3.67 ft at 8:00AM Jul 24, 2014Observed: 3.68 ft at 8:15AM Jul 24, 2014Observed: 3.7 ft at 8:30AM Jul 24, 2014Observed: 3.68 ft at 8:45AM Jul 24, 2014Observed: 3.68 ft at 9:00AM Jul 24, 2014Observed: 3.72 ft at 9:15AM Jul 24, 2014Observed: 3.69 ft at 9:30AM Jul 24, 2014Observed: 3.68 ft at 9:45AM Jul 24, 2014Observed: 3.67 ft at 10:00AM Jul 24, 2014Observed: 3.72 ft at 10:15AM Jul 24, 2014Observed: 3.7 ft at 10:30AM Jul 24, 2014Observed: 3.7 ft at 10:45AM Jul 24, 2014Observed: 3.68 ft at 11:00AM Jul 24, 2014Observed: 3.69 ft at 11:15AM Jul 24, 2014Observed: 3.7 ft at 11:30AM Jul 24, 2014Observed: 3.69 ft at 11:45AM Jul 24, 2014Observed: 3.68 ft at 12:00PM Jul 24, 2014Observed: 3.68 ft at 12:15PM Jul 24, 2014Observed: 3.66 ft at 12:30PM Jul 24, 2014Observed: 3.69 ft at 12:45PM Jul 24, 2014Observed: 3.7 ft at 1:00PM Jul 24, 2014Observed: 3.69 ft at 1:15PM Jul 24, 2014Observed: 3.7 ft at 1:30PM Jul 24, 2014Observed: 3.7 ft at 1:45PM Jul 24, 2014Observed: 3.67 ft at 2:00PM Jul 24, 2014Observed: 3.68 ft at 2:15PM Jul 24, 2014Observed: 3.69 ft at 2:30PM Jul 24, 2014Observed: 3.7 ft at 2:45PM Jul 24, 2014Observed: 3.69 ft at 3:00PM Jul 24, 2014Observed: 3.71 ft at 3:15PM Jul 24, 2014Observed: 3.68 ft at 3:30PM Jul 24, 2014Observed: 3.67 ft at 3:45PM Jul 24, 2014Observed: 3.67 ft at 4:00PM Jul 24, 2014Observed: 3.7 ft at 4:15PM Jul 24, 2014Observed: 3.68 ft at 4:30PM Jul 24, 2014Observed: 3.69 ft at 4:45PM Jul 24, 2014Observed: 3.71 ft at 5:00PM Jul 24, 2014Observed: 3.67 ft at 5:15PM Jul 24, 2014Observed: 3.67 ft at 5:30PM Jul 24, 2014Observed: 3.67 ft at 5:45PM Jul 24, 2014Observed: 3.65 ft at 6:00PM Jul 24, 2014Observed: 3.66 ft at 6:15PM Jul 24, 2014Observed: 3.66 ft at 6:30PM Jul 24, 2014Observed: 3.68 ft at 6:45PM Jul 24, 2014Observed: 3.66 ft at 7:00PM Jul 24, 2014Observed: 3.67 ft at 7:15PM Jul 24, 2014Observed: 3.66 ft at 7:30PM Jul 24, 2014Observed: 3.63 ft at 7:45PM Jul 24, 2014Observed: 3.68 ft at 8:00PM Jul 24, 2014Observed: 3.64 ft at 8:15PM Jul 24, 2014Observed: 3.63 ft at 8:30PM Jul 24, 2014Observed: 3.62 ft at 8:45PM Jul 24, 2014Observed: 3.66 ft at 9:00PM Jul 24, 2014Observed: 3.65 ft at 9:15PM Jul 24, 2014Observed: 3.67 ft at 9:30PM Jul 24, 2014Observed: 3.66 ft at 9:45PM Jul 24, 2014Observed: 3.63 ft at 10:00PM Jul 24, 2014Observed: 3.61 ft at 10:15PM Jul 24, 2014Observed: 3.61 ft at 10:30PM Jul 24, 2014Observed: 3.66 ft at 10:45PM Jul 24, 2014USGS--Water Resources of the United StatesPNTI2(plotting HGIRG) Graph Created (11:50PM Jul 24, 2014)ObservedLatest observed value: 3.66 ft at 10:45 PM CDT 24-Jul-2014. Flood Stage is 14 ft
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About this graph
Tabular Data (UTC)
Tabular Data (CDT)
XML Data
RSS Files
Datum: Not Available
Metadata
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 Vermilion River (N-IL) at Pontiac are issued as needed during times of high water, but are not routinely available.

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Downstream Gauge Downstream Gauge - near Leonore
Flood Categories (in feet)
Major Flood Stage:18
Moderate Flood Stage:15
Flood Stage:14
Action Stage:13

Historical Crests
(1) 19.18 ft on 01/09/2008
(2) 19.16 ft on 12/04/1982
(3) 18.12 ft on 06/03/1980
(4) 17.90 ft on 07/10/1951
(5) 17.46 ft on 05/14/1970
(6) 17.23 ft on 01/14/2005
(7) 17.20 ft on 04/28/1957
(8) 16.64 ft on 03/12/1990
(9) 16.35 ft on 05/13/2002
(10) 16.27 ft on 03/05/1979
Show More Historical Crests

(P): Preliminary values subject to further review.

Low Water Records
(1) 2.25 ft on 10/01/2007

For more information on your flood risk go to www.floodsmart.gov.

Zoom Level:15
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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
18 Residential areas flood in Pontiac.
15 Floodwaters approach some low lying homes upstream of Mill Street in Pontiac. Portion of Rt 116 floods in rural areas east and west of town.
14 Rural flooding begins to low lying areas near river.
About This Location Collapse

Latitude: 40.877778° N, Longitude: 88.636111° W, Horizontal Datum: NAD83/WGS84

River Stage
Reference Frame
Gauge Height Flood Stage Uses
NWS stage 0 ft 14 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 29 619.45 ft 633.45 ft 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?
USGS Streamflow Duration Hydrograph
How low could the river get?
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Hydrologic Resources Additional Resources
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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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Romeoville, IL 60446
(815) 834-1435
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Page last modified: 16-Jul-2014 2:07 AM
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