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Weather Forecast Office Lincoln, IL North Central River Forecast Center

Hydrograph River at a Glance Download  
Illinois River at Lagrange Observed crest: 25.22 ft at 12:00pm Nov 20 Observed: 25.45 ft at 12:00pm Nov 12 Observed: 25.45 ft at 2:00pm Nov 12 Observed: 25.37 ft at 4:00pm Nov 12 Observed: 25.31 ft at 6:00pm Nov 12 Observed: 25.25 ft at 8:00pm Nov 12 Observed: 25.19 ft at 10:00pm Nov 12 Observed: 25.15 ft at 12:00am Nov 13 Observed: 25.12 ft at 2:00am Nov 13 Observed: 25.05 ft at 4:00am Nov 13 Observed: 24.92 ft at 6:00am Nov 13 Observed: 24.9 ft at 8:00am Nov 13 Observed: 24.9 ft at 10:00am Nov 13 Observed: 24.85 ft at 12:00pm Nov 13 Observed: 24.83 ft at 2:00pm Nov 13 Observed: 24.72 ft at 4:00pm Nov 13 Observed: 24.68 ft at 6:00pm Nov 13 Observed: 24.65 ft at 8:00pm Nov 13 Observed: 24.58 ft at 10:00pm Nov 13 Observed: 24.5 ft at 12:00am Nov 14 Observed: 24.45 ft at 2:00am Nov 14 Observed: 24.4 ft at 4:00am Nov 14 Observed: 24.35 ft at 6:00am Nov 14 Observed: 24.29 ft at 8:00am Nov 14 Observed: 24.15 ft at 10:00am Nov 14 Observed: 24.08 ft at 12:00pm Nov 14 Observed: 24.06 ft at 2:00pm Nov 14 Observed: 24.03 ft at 4:00pm Nov 14 Observed: 24 ft at 6:00pm Nov 14 Observed: 23.92 ft at 8:00pm Nov 14 Observed: 23.85 ft at 10:00pm Nov 14 Observed: 23.8 ft at 12:00am Nov 15 Observed: 23.74 ft at 2:00am Nov 15 Observed: 23.68 ft at 4:00am Nov 15 Observed: 23.61 ft at 6:00am Nov 15 Observed: 23.53 ft at 8:00am Nov 15 Observed: 23.53 ft at 10:00am Nov 15 Observed: 23.45 ft at 12:00pm Nov 15 Observed: 23.38 ft at 6:00pm Nov 15 Observed: 23.34 ft at 8:00pm Nov 15 Observed: 23.34 ft at 10:00pm Nov 15 Observed: 23.2 ft at 12:00am Nov 16 Observed: 23.18 ft at 2:00am Nov 16 Observed: 23.17 ft at 4:00am Nov 16 Observed: 23.15 ft at 6:00am Nov 16 Observed: 23.12 ft at 8:00am Nov 16 Observed: 23.15 ft at 10:00am Nov 16 Observed: 23.18 ft at 12:00pm Nov 16 Observed: 23.19 ft at 2:00pm Nov 16 Observed: 23.21 ft at 4:00pm Nov 16 Observed: 23.23 ft at 6:00pm Nov 16 Observed: 23.25 ft at 8:00pm Nov 16 Observed: 23.26 ft at 10:00pm Nov 16 Observed: 23.26 ft at 12:00am Nov 17 Observed: 23.27 ft at 2:00am Nov 17 Observed: 23.45 ft at 4:00am Nov 17 Observed: 24 ft at 6:00am Nov 17 Observed: 24 ft at 8:00am Nov 17 Observed: 24.05 ft at 10:00am Nov 17 Observed: 24.08 ft at 12:00pm Nov 17 Observed: 24.2 ft at 2:00pm Nov 17 Observed: 24.3 ft at 4:00pm Nov 17 Observed: 24.35 ft at 6:00pm Nov 17 Observed: 24.4 ft at 8:00pm Nov 17 Observed: 24.45 ft at 10:00pm Nov 17 Observed: 24.5 ft at 12:00am Nov 18 Observed: 24.57 ft at 2:00am Nov 18 Observed: 24.61 ft at 4:00am Nov 18 Observed: 24.7 ft at 6:00am Nov 18 Observed: 24.75 ft at 8:00am Nov 18 Observed: 24.89 ft at 12:00pm Nov 18 Observed: 24.91 ft at 2:00pm Nov 18 Observed: 25 ft at 4:00pm Nov 18 Observed: 25.06 ft at 6:00pm Nov 18 Observed: 25.13 ft at 8:00pm Nov 18 Observed: 25.15 ft at 10:00pm Nov 18 Observed: 25.1 ft at 12:00am Nov 19 Observed: 25.1 ft at 2:00am Nov 19 Observed: 25.11 ft at 4:00am Nov 19 Observed: 25.11 ft at 6:00am Nov 19 Observed: 25.1 ft at 10:00am Nov 19 Observed: 25.12 ft at 12:00pm Nov 19 Observed: 25.16 ft at 2:00pm Nov 19 Observed: 25.17 ft at 4:00pm Nov 19 Observed: 25.17 ft at 6:00pm Nov 19 Observed: 25.18 ft at 8:00pm Nov 19 Observed: 25.2 ft at 10:00pm Nov 19 Observed: 25.18 ft at 12:00am Nov 20 Observed: 25.18 ft at 2:00am Nov 20 Observed: 25.19 ft at 4:00am Nov 20 Observed: 25.19 ft at 6:00am Nov 20 Observed: 25.19 ft at 8:00am Nov 20 Observed: 25.21 ft at 10:00am Nov 20 Observed: 25.22 ft at 12:00pm Nov 20 Observed: 25.21 ft at 2:00pm Nov 20 Observed: 25.2 ft at 4:00pm Nov 20 Observed: 25.2 ft at 6:00pm Nov 20 Observed: 25.2 ft at 8:00pm Nov 20 Observed: 25.19 ft at 10:00pm Nov 20 Observed: 25.18 ft at 12:00am Nov 21 Observed: 25.18 ft at 2:00am Nov 21 Observed: 25.18 ft at 4:00am Nov 21 Observed: 25.17 ft at 6:00am Nov 21 Observed: 25.18 ft at 8:00am Nov 21 Observed: 25.21 ft at 10:00am Nov 21 Observed: 25.21 ft at 12:00pm Nov 21 Observed: 25.21 ft at 2:00pm Nov 21 Observed: 25.21 ft at 4:00pm Nov 21 Observed: 25.19 ft at 6:00pm Nov 21 Observed: 25.19 ft at 8:00pm Nov 21 Observed: 25.19 ft at 10:00pm Nov 21 Observed: 25.19 ft at 12:00am Nov 22 Observed: 25.18 ft at 2:00am Nov 22 Observed: 25.19 ft at 4:00am Nov 22 Observed: 25.19 ft at 6:00am Nov 22 Observed: 25.19 ft at 8:00am Nov 22 Observed: 25.19 ft at 10:00am Nov 22 Forecast: 25.2 ft at 12:00pm Nov 22 Forecast: 25.2 ft at 6:00pm Nov 22 Forecast: 25.2 ft at 12:00am Nov 23 Forecast: 25.2 ft at 6:00am Nov 23 Forecast: 25.2 ft at 12:00pm Nov 23 Forecast: 25.1 ft at 6:00pm Nov 23 Forecast: 25.1 ft at 12:00am Nov 24 Forecast: 25.1 ft at 6:00am Nov 24 Forecast: 25 ft at 12:00pm Nov 24 Forecast: 25 ft at 6:00pm Nov 24 Forecast: 24.9 ft at 12:00am Nov 25 Forecast: 24.8 ft at 6:00am Nov 25 Forecast: 24.7 ft at 12:00pm Nov 25 Forecast: 24.7 ft at 6:00pm Nov 25 Forecast: 24.6 ft at 12:00am Nov 26 Forecast: 24.5 ft at 6:00am Nov 26 Forecast: 24.4 ft at 12:00pm Nov 26 Forecast: 24.3 ft at 6:00pm Nov 26 Forecast: 24.3 ft at 12:00am Nov 27 Forecast: 24.2 ft at 6:00am Nov 27 Forecast: 24.1 ft at 12:00pm Nov 27 Forecast: 24 ft at 6:00pm Nov 27 Forecast: 23.9 ft at 12:00am Nov 28 Forecast: 23.8 ft at 6:00am Nov 28 Forecast: 23.7 ft at 12:00pm Nov 28 Forecast: 23.6 ft at 6:00pm Nov 28 Forecast: 23.4 ft at 12:00am Nov 29 Forecast: 23.3 ft at 6:00am Nov 29 Graph Created (11:42am Nov 22, 2009) Observed Forecast (issued 10:40am Nov 22) NLGI2 (plotting HTIRV) Gage 0 Datum: 413.50 Latest observed value: 25.19 ft at 10:00 AM CST 22-Nov-2009. Flood Stage is 23.0 ft. Forecast data shown here are guidance values only. Please refer to your local NWS office for the latest 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.

NOTE: Forecasts for the Illinois River at Lagrange are issued routinely year-round.

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Upstream Gauge - at Beardstown Upstream Gauge Downstream Gauge Downstream Gauge - at Meredosia

Flood Categories (in feet)
Major Flood Stage:27
Moderate Flood Stage:25
Flood Stage:23
Action Stage:21

Historical Crests
(1) 34.02 ft on 06/01/1995
(2) 32.80 ft on 04/19/1979
(3) 32.00 ft on 07/29/1993
(3) 32.00 ft on 04/29/1973
(3) 32.00 ft on 05/22/2009
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Low Water Records
Currently none available.


Flood Impacts Collapse
429.0 Normal pool level.
427.5 Dam goes up at this pool level.
36.0 Lockmasters house and the lower Corps building at the lock and dam begin flooding.
35.5 LaGrange Road (County Highway 12) is flooded south of LaGrange Lock and Dam.
29.5 La Grange Lock Road (County Road 1730N) is flooded just north of the Lock and Dam.
28.8 County Road 500N south of La Grange is closed due to flooding.
24.0 Extensive wetland acreage south of La Grange begins flooding.
23.0 Adjacent farmland and wetlands begins flooding. Island Road across the river in western Cass County begins flooding.
20.5 The lock wall is completely overtopped.
16.5 The earthen part of the dam is overtopped.

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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
National Weather Service
Lincoln Weather Forecast Office
1362 State Route 10
Lincoln, IL 62656
(217) 732-3089
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