ALERT: December 5th update on the status of the nationwide data transmission error preventing stream gauge data collected at affected locations from being displayed on the Advanced Hydrologic Prediction Services (AHPS) webpages. As of 11/08/2018, The USGS has restored all impacted operational stream gauges to transmitting status. The status map of gauge outages from other agencies is here. The outage map will be updated each Thursday. We apologize for the service interruption and hope to have the data restored as soon as possible.

Link to USGS Information on the Status of the Current Gage Outages

Weather Forecast Office Lincoln, IL

North Central River Forecast Center

Hydrograph

River at a Glance

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Probability Information Weekly Chance of Exceeding Levels Chance of Exceeding Levels During Entire Period Short-term Probabilistic Guidance (Experimental) Not Available

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Printable Image About this graph Tabular Data (UTC) Tabular Data (CST) 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 near Henry are issued routinely year-round.

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Upstream Gauge

Downstream Gauge

Flood Categories (in feet) Major Flood Stage: 31 Moderate Flood Stage: 24 Flood Stage: 23 Action Stage: 22 Low Stage (in feet): -9999 Historic Crests (1) 32.94 ft on 04/22/2013 (2) 32.67 ft on 03/22/1979 (3) 32.20 ft on 05/23/1943 (4) 32.02 ft on 03/07/1985 (5) 31.49 ft on 03/13/2009 Show More Historic Crests (P): Preliminary values subject to further review. Recent Crests (1) 22.42 ft on 06/25/2018 (2) 29.21 ft on 02/27/2018 (3) 26.95 ft on 05/04/2017 (4) 25.06 ft on 04/09/2017 (5) 29.78 ft on 01/02/2016 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. Show FEMA's National Flood Hazard Layers FEMA's National Flood Hazard Layers not showing? Why aren't the FEMA National Flood Hazard Layers showing on the ESRI Map? Possible reasons: There are no FEMA National Flood Hazard Layers for the location which you are viewing on ESRI Maps. The FEMA Web Mapping Service (WMS) is down. Note: Your zoom level may have changed. ESRI's zoom levels must be between 14 and 16 to show National Flood Hazard layers.

Zoom Level:15 Legend FEMA Layer 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.

Flood Impacts & Photos

If you notice any errors in the below information, please contact our Webmaster
32.5	Illinois Route 18 in Marshall County is closed. Parts of Illinois Route 17 between Sparland and Lacon are closed.
32	Water begins flooding parts of Illinois Route 18 between Henry and Illinois Route 26. Parts of Illinois Route 17 begin to flood.
30.5	The Marina building, Waterworks Park, and grain loading facility in Henry are flooded.
29.6	A few homes begin to flood in Henry.
28.5	Hennepin levee overtopped.
28	Flooding begins to affect buildings east of Illinois Route 29 in Sparland.
23	Water begins to affect the marina in Henry along with minor flooding of land adjacent to the river.
Photos (1) Looking Downstream (Stage: 15.45 ft) (2) Looking Upstream (Stage: 15.45 ft) (3) Gauge House

About This Location

Latitude: 41.107222° N, Longitude: 89.356111° W, Horizontal Datum: NAD83/WGS84 River Stage Reference Frame Gauge Height Flood Stage Uses NWS stage 0 ft 23 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 29 425.88 ft 448.88 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: Corps of Engineers (COE) Info for Henry U.S. Geological Survey (USGS) Data and Site Info for Henry

Additional Information

USGS Streamflow Duration Hydrograph How low could the river get?

Resources

Hydrologic Resources Text Products Past Precipitation Forecast Precipitation River Forecast Centers River Stage Summary Precipitation Frequency Information Inundation Mapping Locations NCRFC Ensemble River Forecasts OHRFC Ensemble River Forecasts USACE Ice Jam Database

Additional Resources Area Hydrographs NWS Precipitation and River Forecasting AHPS Iframes for Developers Mobile iNWS for emergency management Flood Damage Costs/Fatalities in the US, 1903 - 2014 AHPS Web Brochure Snow Information Palmer Drought Index U.S. Drought Monitor Seasonal Drought Outlook Water Resources Outlook USGS WaterAlert

Collaborative Agencies 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 Lincoln Weather Forecast Office 1362 State Route 10 Lincoln, IL 62656 (217) 732-3089 Ask Questions/Webmaster Page last modified: 21-Dec-2016 5:20 PM Disclaimer Credits Glossary Privacy Policy About Us Career Opportunities