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Hydrograph River at a Glance Download
Illinois River at Starved Rock Lock (tailwater) Tailwater (ft)Flow (kcfs)Observed: 440.7 ft at 12:30PM Nov 27, 2022Observed: 440.77 ft at 1:00PM Nov 27, 2022Observed: 440.79 ft at 1:30PM Nov 27, 2022Observed: 440.73 ft at 2:00PM Nov 27, 2022Observed: 440.77 ft at 2:30PM Nov 27, 2022Observed: 441.27 ft at 3:00PM Nov 27, 2022Observed: 440.82 ft at 3:30PM Nov 27, 2022Observed: 440.83 ft at 4:00PM Nov 27, 2022Observed: 440.82 ft at 4:30PM Nov 27, 2022Observed: 440.9 ft at 5:00PM Nov 27, 2022Observed: 440.76 ft at 5:30PM Nov 27, 2022Observed: 440.95 ft at 6:00PM Nov 27, 2022Observed: 440.94 ft at 6:30PM Nov 27, 2022Observed: 440.92 ft at 7:00PM Nov 27, 2022Observed: 440.91 ft at 7:30PM Nov 27, 2022Observed: 440.93 ft at 8:00PM Nov 27, 2022Observed: 440.9 ft at 8:30PM Nov 27, 2022Observed: 440.86 ft at 9:00PM Nov 27, 2022Observed: 440.86 ft at 9:30PM Nov 27, 2022Observed: 440.9 ft at 10:00PM Nov 27, 2022Observed: 440.88 ft at 10:30PM Nov 27, 2022Observed: 440.91 ft at 11:00PM Nov 27, 2022Observed: 440.87 ft at 11:30PM Nov 27, 2022Observed: 440.89 ft at 12:00AM Nov 28, 2022Observed: 440.97 ft at 12:30AM Nov 28, 2022Observed: 441.01 ft at 1:00AM Nov 28, 2022Observed: 440.88 ft at 1:30AM Nov 28, 2022Observed: 440.94 ft at 2:00AM Nov 28, 2022Observed: 440.88 ft at 2:30AM Nov 28, 2022Observed: 440.86 ft at 3:00AM Nov 28, 2022Observed: 440.91 ft at 3:30AM Nov 28, 2022Observed: 440.86 ft at 4:00AM Nov 28, 2022Observed: 440.88 ft at 4:30AM Nov 28, 2022Observed: 440.94 ft at 5:00AM Nov 28, 2022Observed: 440.92 ft at 5:30AM Nov 28, 2022Observed: 440.91 ft at 6:00AM Nov 28, 2022Observed: 440.94 ft at 6:30AM Nov 28, 2022Observed: 440.91 ft at 7:00AM Nov 28, 2022Observed: 440.9 ft at 7:30AM Nov 28, 2022Observed: 440.88 ft at 8:00AM Nov 28, 2022Observed: 440.86 ft at 8:30AM Nov 28, 2022Observed: 440.8 ft at 9:00AM Nov 28, 2022Observed: 440.76 ft at 9:30AM Nov 28, 2022Observed: 440.73 ft at 10:00AM Nov 28, 2022Observed: 440.67 ft at 10:30AM Nov 28, 2022Observed: 440.67 ft at 11:00AM Nov 28, 2022Observed: 440.59 ft at 11:30AM Nov 28, 2022Observed: 440.69 ft at 12:00PM Nov 28, 2022Observed: 440.71 ft at 12:30PM Nov 28, 2022Observed: 440.67 ft at 1:00PM Nov 28, 2022Observed: 440.52 ft at 1:30PM Nov 28, 2022Observed: 440.61 ft at 2:00PM Nov 28, 2022Observed: 440.59 ft at 2:30PM Nov 28, 2022Observed: 440.55 ft at 3:00PM Nov 28, 2022Observed: 440.39 ft at 3:30PM Nov 28, 2022Observed: 440.45 ft at 4:00PM Nov 28, 2022Observed: 440.51 ft at 4:30PM Nov 28, 2022Observed: 440.48 ft at 5:00PM Nov 28, 2022Observed: 440.48 ft at 5:30PM Nov 28, 2022Observed: 440.43 ft at 6:00PM Nov 28, 2022Observed: 440.49 ft at 6:30PM Nov 28, 2022Observed: 440.64 ft at 7:00PM Nov 28, 2022Observed: 440.73 ft at 7:30PM Nov 28, 2022Observed: 440.78 ft at 8:00PM Nov 28, 2022Observed: 441.07 ft at 8:30PM Nov 28, 2022Observed: 441.06 ft at 9:00PM Nov 28, 2022Observed: 441.01 ft at 9:30PM Nov 28, 2022Observed: 441.07 ft at 10:00PM Nov 28, 2022Observed: 440.86 ft at 10:30PM Nov 28, 2022Observed: 440.9 ft at 11:00PM Nov 28, 2022Observed: 440.92 ft at 11:30PM Nov 28, 2022Observed: 441.04 ft at 12:00AM Nov 29, 2022Observed: 440.94 ft at 12:30AM Nov 29, 2022Observed: 440.91 ft at 1:00AM Nov 29, 2022Observed: 441.07 ft at 1:30AM Nov 29, 2022Observed: 440.83 ft at 2:00AM Nov 29, 2022Observed: 440.84 ft at 2:30AM Nov 29, 2022Observed: 440.88 ft at 3:00AM Nov 29, 2022Observed: 440.75 ft at 3:30AM Nov 29, 2022Observed: 440.79 ft at 4:00AM Nov 29, 2022Observed: 440.82 ft at 4:30AM Nov 29, 2022Observed: 440.86 ft at 5:00AM Nov 29, 2022Observed: 440.83 ft at 5:30AM Nov 29, 2022Observed: 440.96 ft at 6:00AM Nov 29, 2022Observed: 440.84 ft at 6:30AM Nov 29, 2022Observed: 440.74 ft at 7:00AM Nov 29, 2022Observed: 440.72 ft at 7:30AM Nov 29, 2022Observed: 440.83 ft at 8:00AM Nov 29, 2022Observed: 440.89 ft at 8:30AM Nov 29, 2022Observed: 440.82 ft at 9:00AM Nov 29, 2022Observed: 440.89 ft at 9:30AM Nov 29, 2022Observed: 440.83 ft at 10:00AM Nov 29, 2022Observed: 440.87 ft at 10:30AM Nov 29, 2022Observed: 440.84 ft at 11:00AM Nov 29, 2022Observed: 440.73 ft at 11:30AM Nov 29, 2022Observed: 440.77 ft at 12:00PM Nov 29, 2022Observed: 440.77 ft at 12:30PM Nov 29, 2022Observed: 440.65 ft at 1:00PM Nov 29, 2022Observed: 440.73 ft at 1:30PM Nov 29, 2022Observed: 440.96 ft at 2:00PM Nov 29, 2022Observed: 440.9 ft at 2:30PM Nov 29, 2022Observed: 440.91 ft at 3:00PM Nov 29, 2022Observed: 440.92 ft at 3:30PM Nov 29, 2022Observed: 441.13 ft at 4:00PM Nov 29, 2022Observed: 441.07 ft at 4:30PM Nov 29, 2022Observed: 441.07 ft at 5:00PM Nov 29, 2022Observed: 441.1 ft at 5:30PM Nov 29, 2022Observed: 441.09 ft at 6:00PM Nov 29, 2022Observed: 441.14 ft at 6:30PM Nov 29, 2022Observed: 441.1 ft at 7:00PM Nov 29, 2022Observed: 441.31 ft at 7:30PM Nov 29, 2022Observed: 441.18 ft at 8:00PM Nov 29, 2022Observed: 441.21 ft at 8:30PM Nov 29, 2022Observed: 441.27 ft at 9:00PM Nov 29, 2022Observed: 441.39 ft at 9:30PM Nov 29, 2022Observed: 441.34 ft at 10:00PM Nov 29, 2022Observed: 441.26 ft at 10:30PM Nov 29, 2022Observed: 441.35 ft at 11:00PM Nov 29, 2022Observed: 441.33 ft at 11:30PM Nov 29, 2022Observed: 441.27 ft at 12:00AM Nov 30, 2022Observed: 441.33 ft at 12:30AM Nov 30, 2022Observed: 441.22 ft at 1:00AM Nov 30, 2022Observed: 441.29 ft at 1:30AM Nov 30, 2022Observed: 441.18 ft at 2:00AM Nov 30, 2022Observed: 441.09 ft at 2:30AM Nov 30, 2022Observed: 441.14 ft at 3:00AM Nov 30, 2022Observed: 441.04 ft at 3:30AM Nov 30, 2022Observed: 441.05 ft at 4:00AM Nov 30, 2022Observed: 441 ft at 4:30AM Nov 30, 2022Observed: 441.1 ft at 5:00AM Nov 30, 2022Observed: 441.03 ft at 5:30AM Nov 30, 2022Observed: 441.04 ft at 6:00AM Nov 30, 2022Observed: 441.11 ft at 6:30AM Nov 30, 2022Observed: 441.08 ft at 7:00AM Nov 30, 2022Observed: 441.07 ft at 7:30AM Nov 30, 2022Observed: 441.11 ft at 8:00AM Nov 30, 2022Observed: 441.15 ft at 8:30AM Nov 30, 2022Observed: 441.17 ft at 9:00AM Nov 30, 2022Observed: 441.18 ft at 9:30AM Nov 30, 2022Observed: 441.15 ft at 10:00AM Nov 30, 2022Observed: 441.25 ft at 10:30AM Nov 30, 2022Observed: 441.28 ft at 11:00AM Nov 30, 2022Observed: 441.41 ft at 11:30AM Nov 30, 2022Observed: 441.64 ft at 12:00PM Nov 30, 2022Observed: 441.58 ft at 12:30PM Nov 30, 2022Observed: 441.67 ft at 1:00PM Nov 30, 2022Observed: 441.73 ft at 1:30PM Nov 30, 2022Observed: 441.76 ft at 2:00PM Nov 30, 2022Observed: 441.72 ft at 2:30PM Nov 30, 2022Observed: 441.72 ft at 3:00PM Nov 30, 2022Observed: 441.72 ft at 3:30PM Nov 30, 2022Observed: 441.71 ft at 4:00PM Nov 30, 2022Observed: 441.73 ft at 4:30PM Nov 30, 2022Observed: 441.67 ft at 5:00PM Nov 30, 2022Observed: 441.66 ft at 5:30PM Nov 30, 2022Observed: 441.6 ft at 6:00PM Nov 30, 2022Observed: 441.6 ft at 6:30PM Nov 30, 2022Observed: 441.57 ft at 7:00PM Nov 30, 2022Observed: 441.72 ft at 7:30PM Nov 30, 2022Observed: 441.63 ft at 8:00PM Nov 30, 2022Observed: 441.59 ft at 8:30PM Nov 30, 2022Observed: 441.68 ft at 9:00PM Nov 30, 2022Observed: 441.63 ft at 9:30PM Nov 30, 2022Observed: 441.97 ft at 10:00PM Nov 30, 2022Observed: 442.09 ft at 10:30PM Nov 30, 2022Observed: 442.19 ft at 11:00PM Nov 30, 2022Highest Observation: 442.43 ft at 11:30PM Nov 30, 2022Observed: 442.27 ft at 12:00AM Dec 01, 2022Observed: 441.75 ft at 2:30AM Dec 01, 2022Observed: 441.68 ft at 3:00AM Dec 01, 2022Observed: 441.65 ft at 3:30AM Dec 01, 2022Observed: 441.61 ft at 4:00AM Dec 01, 2022Observed: 441.58 ft at 4:30AM Dec 01, 2022Observed: 441.56 ft at 5:00AM Dec 01, 2022Observed: 441.53 ft at 5:30AM Dec 01, 2022Observed: 441.55 ft at 6:00AM Dec 01, 2022Observed: 441.56 ft at 6:30AM Dec 01, 2022Observed: 441.57 ft at 7:00AM Dec 01, 2022Observed: 441.5 ft at 7:30AM Dec 01, 2022Observed: 441.52 ft at 8:00AM Dec 01, 2022Observed: 441.49 ft at 8:30AM Dec 01, 2022Observed: 441.51 ft at 9:00AM Dec 01, 2022Observed: 441.49 ft at 9:30AM Dec 01, 2022Observed: 441.39 ft at 10:00AM Dec 01, 2022Observed: 441.13 ft at 10:30AM Dec 01, 2022Observed: 441.04 ft at 11:00AM Dec 01, 2022Observed: 441.03 ft at 11:30AM Dec 01, 2022Observed: 441.11 ft at 12:00PM Dec 01, 2022Observed: 440.99 ft at 12:30PM Dec 01, 2022Observed: 441.08 ft at 1:00PM Dec 01, 2022Observed: 441.06 ft at 1:30PM Dec 01, 2022Observed: 441.13 ft at 2:00PM Dec 01, 2022Observed: 441.14 ft at 2:30PM Dec 01, 2022Observed: 441.06 ft at 3:00PM Dec 01, 2022Observed: 441.03 ft at 3:30PM Dec 01, 2022Observed: 441.21 ft at 4:00PM Dec 01, 2022Observed: 441.11 ft at 4:30PM Dec 01, 2022Observed: 441.31 ft at 5:00PM Dec 01, 2022Observed: 441.1 ft at 5:30PM Dec 01, 2022Observed: 441.27 ft at 6:00PM Dec 01, 2022Observed: 441.33 ft at 6:30PM Dec 01, 2022Observed: 441.41 ft at 7:00PM Dec 01, 2022Observed: 441.41 ft at 7:30PM Dec 01, 2022Observed: 441.45 ft at 8:00PM Dec 01, 2022Observed: 441.4 ft at 8:30PM Dec 01, 2022Observed: 441.69 ft at 9:00PM Dec 01, 2022Observed: 441.49 ft at 9:30PM Dec 01, 2022Observed: 441.45 ft at 10:00PM Dec 01, 2022Observed: 441.57 ft at 10:30PM Dec 01, 2022Observed: 441.5 ft at 11:00PM Dec 01, 2022Observed: 441.56 ft at 11:30PM Dec 01, 2022Observed: 441.57 ft at 12:00AM Dec 02, 2022Observed: 441.56 ft at 12:30AM Dec 02, 2022Observed: 441.57 ft at 1:00AM Dec 02, 2022Observed: 441.57 ft at 1:30AM Dec 02, 2022Observed: 441.6 ft at 2:00AM Dec 02, 2022Observed: 441.63 ft at 2:30AM Dec 02, 2022Observed: 441.62 ft at 3:00AM Dec 02, 2022Observed: 441.64 ft at 3:30AM Dec 02, 2022Observed: 441.58 ft at 4:00AM Dec 02, 2022Observed: 441.58 ft at 4:30AM Dec 02, 2022Observed: 441.58 ft at 5:00AM Dec 02, 2022Observed: 441.58 ft at 5:30AM Dec 02, 2022Observed: 441.7 ft at 6:00AM Dec 02, 2022Observed: 441.57 ft at 6:30AM Dec 02, 2022Observed: 441.53 ft at 7:00AM Dec 02, 2022Observed: 441.36 ft at 7:30AM Dec 02, 2022Observed: 441.28 ft at 8:00AM Dec 02, 2022Observed: 441.17 ft at 8:30AM Dec 02, 2022Observed: 441.18 ft at 9:00AM Dec 02, 2022Observed: 441.15 ft at 9:30AM Dec 02, 2022Observed: 441.15 ft at 10:00AM Dec 02, 2022Observed: 441.19 ft at 10:30AM Dec 02, 2022Observed: 441.17 ft at 11:00AM Dec 02, 2022Observed: 441.13 ft at 12:00PM Dec 02, 2022Observed: 441.26 ft at 12:30PM Dec 02, 2022Observed: 441.31 ft at 1:30PM Dec 02, 2022Observed: 441.26 ft at 3:00PM Dec 02, 2022Observed: 441.51 ft at 5:00PM Dec 02, 2022Observed: 441.59 ft at 6:00PM Dec 02, 2022Observed: 441.56 ft at 7:00PM Dec 02, 2022Observed: 441.5 ft at 9:00PM Dec 02, 2022Observed: 441.68 ft at 10:30PM Dec 02, 2022Observed: 441.7 ft at 11:00PM Dec 02, 2022Observed: 441.7 ft at 11:30PM Dec 02, 2022Observed: 441.81 ft at 12:00AM Dec 03, 2022Observed: 441.92 ft at 2:00AM Dec 03, 2022Observed: 441.89 ft at 2:30AM Dec 03, 2022Observed: 442.06 ft at 3:00AM Dec 03, 2022Observed: 441.98 ft at 3:30AM Dec 03, 2022Observed: 441.96 ft at 4:00AM Dec 03, 2022Observed: 441.87 ft at 4:30AM Dec 03, 2022Observed: 441.89 ft at 5:00AM Dec 03, 2022Observed: 441.95 ft at 5:30AM Dec 03, 2022Observed: 441.84 ft at 6:00AM Dec 03, 2022Observed: 441.72 ft at 7:00AM Dec 03, 2022Observed: 441.68 ft at 7:30AM Dec 03, 2022Observed: 441.57 ft at 8:00AM Dec 03, 2022Observed: 441.52 ft at 8:30AM Dec 03, 2022Observed: 441.49 ft at 9:00AM Dec 03, 2022Observed: 441.52 ft at 9:30AM Dec 03, 2022Observed: 441.59 ft at 10:00AM Dec 03, 2022Observed: 441.33 ft at 12:00PM Dec 03, 2022Observed: 441.39 ft at 12:30PM Dec 03, 2022Observed: 441.32 ft at 1:00PM Dec 03, 2022Observed: 441.28 ft at 1:30PM Dec 03, 2022Observed: 441.25 ft at 2:00PM Dec 03, 2022Observed: 441.44 ft at 2:30PM Dec 03, 2022Observed: 441.42 ft at 3:00PM Dec 03, 2022Observed: 441.48 ft at 3:30PM Dec 03, 2022Observed: 441.5 ft at 4:00PM Dec 03, 2022Observed: 441.64 ft at 4:30PM Dec 03, 2022Observed: 441.49 ft at 5:00PM Dec 03, 2022Observed: 441.53 ft at 5:30PM Dec 03, 2022Observed: 441.5 ft at 6:00PM Dec 03, 2022Observed: 441.5 ft at 6:30PM Dec 03, 2022Observed: 441.71 ft at 7:00PM Dec 03, 2022Observed: 441.55 ft at 7:30PM Dec 03, 2022Observed: 441.36 ft at 8:30PM Dec 03, 2022Observed: 441.51 ft at 9:30PM Dec 03, 2022Observed: 441.55 ft at 10:00PM Dec 03, 2022Observed: 441.5 ft at 10:30PM Dec 03, 2022Observed: 441.51 ft at 11:00PM Dec 03, 2022Observed: 441.51 ft at 11:30PM Dec 03, 2022Observed: 441.58 ft at 1:00AM Dec 04, 2022Observed: 441.17 ft at 3:30AM Dec 04, 2022Observed: 441.13 ft at 5:00AM Dec 04, 2022Observed: 441.07 ft at 5:30AM Dec 04, 2022Observed: 441.24 ft at 6:00AM Dec 04, 2022Observed: 440.98 ft at 6:30AM Dec 04, 2022Observed: 440.96 ft at 7:00AM Dec 04, 2022Observed: 440.91 ft at 8:30AM Dec 04, 2022Observed: 440.84 ft at 10:00AM Dec 04, 2022Observed: 440.64 ft at 10:30AM Dec 04, 2022Observed: 440.8 ft at 11:00AM Dec 04, 2022Forecast: 441 ft 6:00PM Dec 04, 2022Highest Forecast: 441.1 ft 12:00AM Dec 05, 2022Highest Forecast: 441.1 ft 6:00AM Dec 05, 2022Forecast: 441 ft 12:00PM Dec 05, 2022Forecast: 441 ft 6:00PM Dec 05, 2022Forecast: 441 ft 12:00AM Dec 06, 2022Forecast: 441 ft 6:00AM Dec 06, 2022Forecast: 441 ft 12:00PM Dec 06, 2022Forecast: 441 ft 6:00PM Dec 06, 2022Forecast: 441 ft 12:00AM Dec 07, 2022Forecast: 440.9 ft 6:00AM Dec 07, 2022Forecast: 440.9 ft 12:00PM Dec 07, 2022Forecast: 440.9 ft 6:00PM Dec 07, 2022Forecast: 440.9 ft 12:00AM Dec 08, 2022Forecast: 440.9 ft 6:00AM Dec 08, 2022Forecast: 440.9 ft 12:00PM Dec 08, 2022Forecast: 440.9 ft 6:00PM Dec 08, 2022Forecast: 440.8 ft 12:00AM Dec 09, 2022Forecast: 440.8 ft 6:00AM Dec 09, 2022Forecast: 440.8 ft 12:00PM Dec 09, 2022Forecast: 440.8 ft 6:00PM Dec 09, 2022Forecast: 440.8 ft 12:00AM Dec 10, 2022Forecast: 440.8 ft 6:00AM Dec 10, 2022Forecast: 440.8 ft 12:00PM Dec 10, 2022Forecast: 440.7 ft 6:00PM Dec 10, 2022Forecast: 440.7 ft 12:00AM Dec 11, 2022Forecast: 440.7 ft 6:00AM Dec 11, 2022USACESRDI2(plotting HTIRG) Graph Created (12:26PM Dec 4, 2022)ObservedForecast (issued 9:27AM Dec 4)Latest observed value: 440.8 ft at 11:00 AM CST 4-Dec-2022. Flood Stage is 450 ft
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About this graph
Tabular Data (UTC)
Tabular Data (CST)
XML Data
RSS Files
Datum: NAVD88
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 Starved Rock Lock (tailwater) are issued routinely year-round.

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Upstream Gauge - at Ottawa Upstream Gauge Downstream Gauge Downstream Gauge - near La Salle
Flood Categories (in feet)
Major Flood Stage: 465
Moderate Flood Stage: 460
Flood Stage: 450
Action Stage: 449
Low Stage (in feet): 438.7

Historic Crests
(1) 467.81 ft on 04/19/2013
(2) 467.31 ft on 09/16/2008
(3) 465.86 ft on 05/19/2020
(4) 464.70 ft on 12/05/1982
(5) 464.61 ft on 05/03/2019
Show More Historic Crests

(P): Preliminary values subject to further review.

Recent Crests
(1) 465.86 ft on 05/19/2020
(2) 464.61 ft on 05/03/2019
(3) 463.65 ft on 02/22/2018
(4) 460.14 ft on 05/02/2017
(5) 461.82 ft on 12/30/2015
Show More Recent Crests

(P): Preliminary values subject to further review.

Low Water Records
(1) 439.90 ft on 10/03/2012
(2) 440.34 ft on 10/01/2017
(3) 440.38 ft on 10/16/2015
(4) 440.78 ft on 09/28/2020

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
467.5 North Utica Village Hall and North Utica Police Department are threatened.
464.5 A few residences threatened in North Utica. IL-178 (Clark Street) threatened in North Utica.
463 A couple structures threatened in North Utica.
461.5 High water causes the Starved Rock Lock to shut down.
459 Dee Bennet Road is threatened between Ottawa and Utica.
458 High water levels begin to impact shipping interests along the river.
455 High water causes the Starved Rock Hydroelectric Power Station to shut down.
Photos
(1) Starved Rock
(2) Gates at lock and dam September 2010.
(3) Looking upstream. September 2010.
Low Water Impacts Collapse
If you notice any errors in the below information, please contact our Webmaster
438.7 Low water levels begin to impact shipping interests along the river.
About This Location Collapse

Latitude: 41.325062° N, Longitude: 88.987417° W, Horizontal Datum: Unknown

River Stage
Reference Frame		 Gauge Height Flood Stage Uses
NWS stage 0 ft 450 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 -0.19 449.81 Survey grade GPS equipment, FEMA flood plain maps, newer USGS topographic maps
NGVD 29 Not Available 450.0 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?
How low could the river get?
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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
Chicago Weather Forecast Office
333 W. University Dr.
Romeoville, IL 60446
(815) 834-1435
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