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Advanced Hydrologic Prediction Service
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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.



Hydrograph River at a Glance Download Inundation
Mapping
Illinois River at Ottawa Stage (ft)Observed: 460.73 ft at 2:30PM Dec 06, 2018Observed: 460.72 ft at 2:45PM Dec 06, 2018Observed: 460.7 ft at 3:00PM Dec 06, 2018Observed: 460.71 ft at 3:15PM Dec 06, 2018Observed: 460.72 ft at 3:30PM Dec 06, 2018Observed: 460.75 ft at 3:45PM Dec 06, 2018Observed: 460.76 ft at 4:00PM Dec 06, 2018Observed: 460.76 ft at 4:15PM Dec 06, 2018Observed: 460.76 ft at 4:30PM Dec 06, 2018Observed: 460.76 ft at 4:45PM Dec 06, 2018Observed: 460.77 ft at 5:00PM Dec 06, 2018Highest Observation: 460.78 ft at 5:15PM Dec 06, 2018Observed: 460.75 ft at 5:30PM Dec 06, 2018Observed: 460.77 ft at 5:45PM Dec 06, 2018Observed: 460.74 ft at 6:00PM Dec 06, 2018Observed: 460.74 ft at 6:15PM Dec 06, 2018Observed: 460.72 ft at 6:30PM Dec 06, 2018Observed: 460.7 ft at 6:45PM Dec 06, 2018Observed: 460.69 ft at 7:00PM Dec 06, 2018Observed: 460.69 ft at 7:15PM Dec 06, 2018Observed: 460.69 ft at 7:30PM Dec 06, 2018Observed: 460.67 ft at 7:45PM Dec 06, 2018Observed: 460.67 ft at 8:00PM Dec 06, 2018Observed: 460.67 ft at 8:15PM Dec 06, 2018Observed: 460.67 ft at 8:30PM Dec 06, 2018Observed: 460.67 ft at 8:45PM Dec 06, 2018Observed: 460.67 ft at 9:00PM Dec 06, 2018Observed: 460.66 ft at 9:15PM Dec 06, 2018Observed: 460.66 ft at 9:30PM Dec 06, 2018Observed: 460.65 ft at 9:45PM Dec 06, 2018Observed: 460.63 ft at 10:00PM Dec 06, 2018Observed: 460.25 ft at 10:15PM Dec 06, 2018Observed: 460.61 ft at 10:30PM Dec 06, 2018Observed: 460.63 ft at 10:45PM Dec 06, 2018Observed: 460.61 ft at 11:00PM Dec 06, 2018Observed: 460.61 ft at 11:15PM Dec 06, 2018Observed: 460.6 ft at 11:30PM Dec 06, 2018Observed: 460.59 ft at 11:45PM Dec 06, 2018Observed: 460.6 ft at 12:00AM Dec 07, 2018Observed: 460.58 ft at 12:15AM Dec 07, 2018Observed: 460.52 ft at 12:30AM Dec 07, 2018Observed: 460.5 ft at 12:45AM Dec 07, 2018Observed: 460.48 ft at 1:00AM Dec 07, 2018Observed: 460.47 ft at 1:15AM Dec 07, 2018Observed: 460.44 ft at 1:30AM Dec 07, 2018Observed: 460.43 ft at 1:45AM Dec 07, 2018Observed: 460.4 ft at 2:00AM Dec 07, 2018Observed: 460.32 ft at 2:15AM Dec 07, 2018Observed: 460.3 ft at 2:30AM Dec 07, 2018Observed: 460.24 ft at 2:45AM Dec 07, 2018Observed: 460.23 ft at 3:00AM Dec 07, 2018Observed: 460.24 ft at 3:15AM Dec 07, 2018Observed: 460.22 ft at 3:30AM Dec 07, 2018Observed: 460.2 ft at 3:45AM Dec 07, 2018Observed: 460.2 ft at 4:00AM Dec 07, 2018Observed: 460.21 ft at 4:15AM Dec 07, 2018Observed: 460.22 ft at 4:30AM Dec 07, 2018Observed: 460.28 ft at 4:45AM Dec 07, 2018Observed: 460.26 ft at 5:00AM Dec 07, 2018Observed: 460.24 ft at 5:15AM Dec 07, 2018Observed: 460.24 ft at 5:30AM Dec 07, 2018Observed: 460.31 ft at 5:45AM Dec 07, 2018Observed: 460.28 ft at 6:00AM Dec 07, 2018Observed: 460.29 ft at 6:15AM Dec 07, 2018Observed: 460.29 ft at 6:30AM Dec 07, 2018Observed: 460.3 ft at 6:45AM Dec 07, 2018Observed: 460.38 ft at 7:00AM Dec 07, 2018Observed: 460.36 ft at 7:15AM Dec 07, 2018Observed: 460.36 ft at 7:30AM Dec 07, 2018Observed: 460.35 ft at 7:45AM Dec 07, 2018Observed: 460.35 ft at 8:00AM Dec 07, 2018Observed: 460.42 ft at 8:15AM Dec 07, 2018Observed: 460.4 ft at 8:30AM Dec 07, 2018Observed: 460.37 ft at 8:45AM Dec 07, 2018Observed: 460.37 ft at 9:00AM Dec 07, 2018Observed: 460.39 ft at 9:15AM Dec 07, 2018Observed: 460.39 ft at 9:30AM Dec 07, 2018Observed: 460.55 ft at 9:45AM Dec 07, 2018Observed: 460.54 ft at 10:00AM Dec 07, 2018Observed: 460.52 ft at 10:15AM Dec 07, 2018Observed: 460.53 ft at 10:30AM Dec 07, 2018Observed: 460.54 ft at 10:45AM Dec 07, 2018Observed: 460.53 ft at 11:00AM Dec 07, 2018Observed: 460.52 ft at 11:15AM Dec 07, 2018Observed: 460.51 ft at 11:30AM Dec 07, 2018Observed: 460.52 ft at 11:45AM Dec 07, 2018Observed: 460.51 ft at 12:00PM Dec 07, 2018Observed: 460.5 ft at 12:15PM Dec 07, 2018Observed: 460.5 ft at 12:30PM Dec 07, 2018Observed: 460.5 ft at 12:45PM Dec 07, 2018Observed: 460.47 ft at 1:00PM Dec 07, 2018Observed: 460.49 ft at 1:15PM Dec 07, 2018Observed: 460.5 ft at 1:30PM Dec 07, 2018Observed: 460.5 ft at 1:45PM Dec 07, 2018Observed: 460.49 ft at 2:00PM Dec 07, 2018Observed: 460.56 ft at 2:15PM Dec 07, 2018Observed: 460.54 ft at 2:30PM Dec 07, 2018Observed: 460.52 ft at 2:45PM Dec 07, 2018Observed: 460.51 ft at 3:00PM Dec 07, 2018Observed: 460.5 ft at 3:15PM Dec 07, 2018Observed: 460.5 ft at 3:30PM Dec 07, 2018Observed: 460.51 ft at 3:45PM Dec 07, 2018Observed: 460.49 ft at 4:00PM Dec 07, 2018Observed: 460.42 ft at 4:15PM Dec 07, 2018Observed: 460.4 ft at 4:30PM Dec 07, 2018Observed: 460.37 ft at 4:45PM Dec 07, 2018Observed: 460.35 ft at 5:00PM Dec 07, 2018Observed: 460.32 ft at 5:15PM Dec 07, 2018Observed: 460.31 ft at 5:30PM Dec 07, 2018Observed: 460.3 ft at 5:45PM Dec 07, 2018Observed: 460.27 ft at 6:00PM Dec 07, 2018Observed: 460.25 ft at 6:15PM Dec 07, 2018Observed: 460.26 ft at 6:30PM Dec 07, 2018Observed: 460.19 ft at 6:45PM Dec 07, 2018Observed: 460.17 ft at 7:00PM Dec 07, 2018Observed: 460.19 ft at 7:15PM Dec 07, 2018Observed: 460.17 ft at 7:30PM Dec 07, 2018Observed: 460.16 ft at 7:45PM Dec 07, 2018Observed: 460.13 ft at 8:00PM Dec 07, 2018Observed: 460.1 ft at 8:15PM Dec 07, 2018Observed: 460.04 ft at 8:30PM Dec 07, 2018Observed: 460.05 ft at 8:45PM Dec 07, 2018Observed: 460.05 ft at 9:00PM Dec 07, 2018Observed: 460.04 ft at 9:15PM Dec 07, 2018Observed: 460.04 ft at 9:30PM Dec 07, 2018Observed: 460.04 ft at 9:45PM Dec 07, 2018Observed: 460.01 ft at 10:00PM Dec 07, 2018Observed: 459.99 ft at 10:15PM Dec 07, 2018Observed: 459.91 ft at 10:30PM Dec 07, 2018Observed: 459.93 ft at 10:45PM Dec 07, 2018Observed: 459.91 ft at 11:00PM Dec 07, 2018Observed: 459.92 ft at 11:15PM Dec 07, 2018Observed: 459.98 ft at 11:30PM Dec 07, 2018Observed: 459.95 ft at 11:45PM Dec 07, 2018Observed: 459.95 ft at 12:00AM Dec 08, 2018Observed: 459.93 ft at 12:15AM Dec 08, 2018Observed: 459.92 ft at 12:30AM Dec 08, 2018Observed: 459.93 ft at 12:45AM Dec 08, 2018Observed: 459.93 ft at 1:00AM Dec 08, 2018Observed: 459.92 ft at 1:15AM Dec 08, 2018Observed: 459.9 ft at 1:30AM Dec 08, 2018Observed: 459.9 ft at 1:45AM Dec 08, 2018Observed: 459.89 ft at 2:00AM Dec 08, 2018Observed: 459.89 ft at 2:15AM Dec 08, 2018Observed: 459.89 ft at 2:30AM Dec 08, 2018Observed: 459.89 ft at 2:45AM Dec 08, 2018Observed: 459.89 ft at 3:00AM Dec 08, 2018Observed: 459.9 ft at 3:15AM Dec 08, 2018Observed: 459.9 ft at 3:30AM Dec 08, 2018Observed: 459.91 ft at 3:45AM Dec 08, 2018Observed: 459.99 ft at 4:00AM Dec 08, 2018Observed: 459.96 ft at 4:15AM Dec 08, 2018Observed: 459.96 ft at 4:30AM Dec 08, 2018Observed: 459.95 ft at 4:45AM Dec 08, 2018Observed: 459.94 ft at 5:00AM Dec 08, 2018Observed: 459.96 ft at 5:15AM Dec 08, 2018Observed: 459.96 ft at 5:30AM Dec 08, 2018Observed: 459.96 ft at 5:45AM Dec 08, 2018Observed: 459.96 ft at 6:00AM Dec 08, 2018Observed: 459.96 ft at 6:15AM Dec 08, 2018Observed: 459.96 ft at 6:30AM Dec 08, 2018Observed: 459.96 ft at 6:45AM Dec 08, 2018Observed: 459.96 ft at 7:00AM Dec 08, 2018Observed: 459.97 ft at 7:15AM Dec 08, 2018Observed: 459.96 ft at 7:30AM Dec 08, 2018Observed: 460.03 ft at 7:45AM Dec 08, 2018Observed: 460.01 ft at 8:00AM Dec 08, 2018Observed: 460.01 ft at 8:15AM Dec 08, 2018Observed: 459.99 ft at 8:30AM Dec 08, 2018Observed: 459.99 ft at 8:45AM Dec 08, 2018Observed: 459.99 ft at 9:00AM Dec 08, 2018Observed: 460.06 ft at 9:15AM Dec 08, 2018Observed: 460.03 ft at 9:30AM Dec 08, 2018Observed: 460.02 ft at 9:45AM Dec 08, 2018Observed: 460.01 ft at 10:00AM Dec 08, 2018Observed: 460 ft at 10:15AM Dec 08, 2018Observed: 459.99 ft at 10:30AM Dec 08, 2018Observed: 460.02 ft at 10:45AM Dec 08, 2018Observed: 460.01 ft at 11:00AM Dec 08, 2018Observed: 460 ft at 11:15AM Dec 08, 2018Observed: 459.99 ft at 11:30AM Dec 08, 2018Observed: 459.99 ft at 11:45AM Dec 08, 2018Observed: 460.06 ft at 12:00PM Dec 08, 2018Observed: 460 ft at 12:15PM Dec 08, 2018Observed: 460.01 ft at 12:30PM Dec 08, 2018Observed: 460.01 ft at 12:45PM Dec 08, 2018Observed: 460 ft at 1:00PM Dec 08, 2018Observed: 460.02 ft at 1:15PM Dec 08, 2018Observed: 460.02 ft at 1:30PM Dec 08, 2018Observed: 460.01 ft at 1:45PM Dec 08, 2018Observed: 460.01 ft at 2:00PM Dec 08, 2018Observed: 459.98 ft at 2:15PM Dec 08, 2018Observed: 459.99 ft at 2:30PM Dec 08, 2018Observed: 460.01 ft at 2:45PM Dec 08, 2018Observed: 460 ft at 3:00PM Dec 08, 2018Observed: 460 ft at 3:15PM Dec 08, 2018Observed: 460.01 ft at 3:30PM Dec 08, 2018Observed: 460 ft at 3:45PM Dec 08, 2018Observed: 460.01 ft at 4:00PM Dec 08, 2018Observed: 460.03 ft at 4:15PM Dec 08, 2018Observed: 460.03 ft at 4:30PM Dec 08, 2018Observed: 460.02 ft at 4:45PM Dec 08, 2018Observed: 460.02 ft at 5:00PM Dec 08, 2018Observed: 460.02 ft at 5:15PM Dec 08, 2018Observed: 460.01 ft at 5:30PM Dec 08, 2018Observed: 460.01 ft at 5:45PM Dec 08, 2018Observed: 460.08 ft at 6:00PM Dec 08, 2018Observed: 460.06 ft at 6:15PM Dec 08, 2018Observed: 460.05 ft at 6:30PM Dec 08, 2018Observed: 460.04 ft at 6:45PM Dec 08, 2018Observed: 460.03 ft at 7:00PM Dec 08, 2018Observed: 460.03 ft at 7:15PM Dec 08, 2018Observed: 460.06 ft at 7:30PM Dec 08, 2018Observed: 460.06 ft at 7:45PM Dec 08, 2018Observed: 460.06 ft at 8:00PM Dec 08, 2018Observed: 460.06 ft at 8:15PM Dec 08, 2018Observed: 460.06 ft at 8:30PM Dec 08, 2018Observed: 460.06 ft at 8:45PM Dec 08, 2018Observed: 460.05 ft at 9:00PM Dec 08, 2018Observed: 460.07 ft at 9:15PM Dec 08, 2018Observed: 460.06 ft at 9:30PM Dec 08, 2018Observed: 460.05 ft at 9:45PM Dec 08, 2018Observed: 460.03 ft at 10:00PM Dec 08, 2018Observed: 460.04 ft at 10:15PM Dec 08, 2018Observed: 460.06 ft at 10:30PM Dec 08, 2018Observed: 460.05 ft at 10:45PM Dec 08, 2018Observed: 459.95 ft at 11:00PM Dec 08, 2018Observed: 460.06 ft at 11:15PM Dec 08, 2018Observed: 460.06 ft at 11:30PM Dec 08, 2018Observed: 460.05 ft at 11:45PM Dec 08, 2018Observed: 460.05 ft at 12:00AM Dec 09, 2018Observed: 460.04 ft at 12:15AM Dec 09, 2018Observed: 460.06 ft at 12:30AM Dec 09, 2018Observed: 460.06 ft at 12:45AM Dec 09, 2018Observed: 460.05 ft at 1:00AM Dec 09, 2018Observed: 460.05 ft at 1:15AM Dec 09, 2018Observed: 460.04 ft at 1:30AM Dec 09, 2018Observed: 460.04 ft at 1:45AM Dec 09, 2018Observed: 460.05 ft at 2:00AM Dec 09, 2018Observed: 460.04 ft at 2:15AM Dec 09, 2018Observed: 460.03 ft at 2:30AM Dec 09, 2018Observed: 460.02 ft at 2:45AM Dec 09, 2018Observed: 460.01 ft at 3:00AM Dec 09, 2018Observed: 460.03 ft at 3:15AM Dec 09, 2018Observed: 460.02 ft at 3:30AM Dec 09, 2018Observed: 460 ft at 3:45AM Dec 09, 2018Observed: 459.98 ft at 4:00AM Dec 09, 2018Observed: 459.96 ft at 4:15AM Dec 09, 2018Observed: 459.94 ft at 4:30AM Dec 09, 2018Observed: 459.92 ft at 4:45AM Dec 09, 2018Observed: 459.9 ft at 5:00AM Dec 09, 2018Observed: 459.87 ft at 5:15AM Dec 09, 2018Observed: 459.89 ft at 5:30AM Dec 09, 2018Observed: 459.86 ft at 5:45AM Dec 09, 2018Observed: 459.84 ft at 6:00AM Dec 09, 2018Observed: 459.83 ft at 6:15AM Dec 09, 2018Observed: 459.81 ft at 6:30AM Dec 09, 2018Observed: 459.79 ft at 6:45AM Dec 09, 2018Observed: 459.77 ft at 7:00AM Dec 09, 2018Observed: 459.76 ft at 7:15AM Dec 09, 2018Observed: 459.76 ft at 7:30AM Dec 09, 2018Observed: 459.75 ft at 7:45AM Dec 09, 2018Observed: 459.73 ft at 8:00AM Dec 09, 2018Observed: 459.71 ft at 8:15AM Dec 09, 2018Observed: 459.69 ft at 8:30AM Dec 09, 2018Observed: 459.67 ft at 8:45AM Dec 09, 2018Observed: 459.65 ft at 9:00AM Dec 09, 2018Observed: 459.64 ft at 9:15AM Dec 09, 2018Observed: 459.64 ft at 9:30AM Dec 09, 2018Observed: 459.65 ft at 9:45AM Dec 09, 2018Observed: 459.65 ft at 10:00AM Dec 09, 2018Observed: 459.66 ft at 10:15AM Dec 09, 2018Observed: 459.68 ft at 10:30AM Dec 09, 2018Observed: 459.77 ft at 10:45AM Dec 09, 2018Observed: 459.76 ft at 11:00AM Dec 09, 2018Observed: 459.76 ft at 11:15AM Dec 09, 2018Observed: 459.75 ft at 11:30AM Dec 09, 2018Observed: 459.69 ft at 11:45AM Dec 09, 2018Observed: 459.72 ft at 12:00PM Dec 09, 2018Observed: 459.74 ft at 12:15PM Dec 09, 2018Observed: 459.75 ft at 12:30PM Dec 09, 2018Observed: 459.76 ft at 12:45PM Dec 09, 2018Observed: 459.78 ft at 1:00PM Dec 09, 2018Observed: 459.62 ft at 1:15PM Dec 09, 2018Observed: 459.52 ft at 1:30PM Dec 09, 2018Observed: 459.5 ft at 1:45PM Dec 09, 2018Observed: 459.56 ft at 2:00PM Dec 09, 2018Observed: 459.57 ft at 2:15PM Dec 09, 2018Observed: 459.56 ft at 2:30PM Dec 09, 2018Observed: 459.55 ft at 2:45PM Dec 09, 2018Observed: 459.56 ft at 3:00PM Dec 09, 2018Observed: 459.64 ft at 3:15PM Dec 09, 2018Observed: 459.55 ft at 3:30PM Dec 09, 2018Observed: 459.55 ft at 3:45PM Dec 09, 2018Observed: 459.57 ft at 4:00PM Dec 09, 2018Observed: 459.67 ft at 4:15PM Dec 09, 2018Observed: 459.66 ft at 4:30PM Dec 09, 2018Observed: 459.64 ft at 4:45PM Dec 09, 2018Observed: 459.62 ft at 5:00PM Dec 09, 2018Observed: 459.6 ft at 5:15PM Dec 09, 2018Observed: 459.57 ft at 5:30PM Dec 09, 2018Observed: 459.51 ft at 5:45PM Dec 09, 2018Observed: 459.49 ft at 6:00PM Dec 09, 2018Observed: 459.55 ft at 6:15PM Dec 09, 2018Observed: 459.74 ft at 6:30PM Dec 09, 2018Observed: 459.73 ft at 6:45PM Dec 09, 2018Observed: 459.73 ft at 7:00PM Dec 09, 2018Observed: 459.72 ft at 7:15PM Dec 09, 2018Observed: 459.7 ft at 7:30PM Dec 09, 2018Observed: 459.7 ft at 7:45PM Dec 09, 2018Observed: 459.69 ft at 8:00PM Dec 09, 2018Observed: 459.68 ft at 8:15PM Dec 09, 2018Observed: 459.67 ft at 8:30PM Dec 09, 2018Observed: 459.67 ft at 8:45PM Dec 09, 2018Observed: 459.68 ft at 9:00PM Dec 09, 2018Observed: 459.68 ft at 9:15PM Dec 09, 2018Observed: 459.69 ft at 9:30PM Dec 09, 2018Observed: 459.7 ft at 9:45PM Dec 09, 2018Observed: 459.7 ft at 10:00PM Dec 09, 2018Observed: 459.69 ft at 10:15PM Dec 09, 2018Observed: 459.75 ft at 10:30PM Dec 09, 2018Observed: 459.74 ft at 10:45PM Dec 09, 2018Observed: 459.73 ft at 11:00PM Dec 09, 2018Observed: 459.73 ft at 11:15PM Dec 09, 2018Observed: 459.74 ft at 11:30PM Dec 09, 2018Observed: 459.71 ft at 11:45PM Dec 09, 2018Observed: 459.72 ft at 12:00AM Dec 10, 2018Observed: 459.73 ft at 12:15AM Dec 10, 2018Observed: 459.73 ft at 12:30AM Dec 10, 2018Observed: 459.74 ft at 12:45AM Dec 10, 2018Observed: 459.75 ft at 1:00AM Dec 10, 2018Observed: 459.76 ft at 1:15AM Dec 10, 2018Observed: 459.78 ft at 1:30AM Dec 10, 2018Observed: 459.79 ft at 1:45AM Dec 10, 2018Observed: 459.8 ft at 2:00AM Dec 10, 2018Observed: 459.8 ft at 2:15AM Dec 10, 2018Observed: 459.8 ft at 2:30AM Dec 10, 2018Observed: 459.81 ft at 2:45AM Dec 10, 2018Observed: 459.81 ft at 3:00AM Dec 10, 2018Observed: 459.82 ft at 3:15AM Dec 10, 2018Observed: 459.82 ft at 3:30AM Dec 10, 2018Observed: 459.83 ft at 3:45AM Dec 10, 2018Observed: 459.84 ft at 4:00AM Dec 10, 2018Observed: 459.84 ft at 4:15AM Dec 10, 2018Observed: 459.84 ft at 4:30AM Dec 10, 2018Observed: 459.84 ft at 4:45AM Dec 10, 2018Observed: 459.85 ft at 5:00AM Dec 10, 2018Observed: 459.85 ft at 5:15AM Dec 10, 2018Observed: 459.86 ft at 5:30AM Dec 10, 2018Observed: 459.85 ft at 5:45AM Dec 10, 2018Observed: 459.85 ft at 6:00AM Dec 10, 2018Observed: 459.84 ft at 6:15AM Dec 10, 2018Observed: 459.83 ft at 6:30AM Dec 10, 2018Observed: 459.82 ft at 6:45AM Dec 10, 2018Observed: 459.82 ft at 7:00AM Dec 10, 2018Observed: 459.82 ft at 7:15AM Dec 10, 2018Observed: 459.81 ft at 7:30AM Dec 10, 2018Observed: 459.8 ft at 7:45AM Dec 10, 2018Observed: 459.8 ft at 8:00AM Dec 10, 2018Observed: 459.8 ft at 8:15AM Dec 10, 2018Observed: 459.79 ft at 8:30AM Dec 10, 2018Observed: 459.8 ft at 8:45AM Dec 10, 2018Observed: 459.81 ft at 9:00AM Dec 10, 2018Observed: 459.81 ft at 9:15AM Dec 10, 2018Observed: 459.8 ft at 9:30AM Dec 10, 2018Observed: 459.8 ft at 9:45AM Dec 10, 2018Observed: 459.81 ft at 10:00AM Dec 10, 2018Observed: 459.81 ft at 10:15AM Dec 10, 2018Observed: 459.82 ft at 10:30AM Dec 10, 2018Observed: 459.82 ft at 10:45AM Dec 10, 2018Observed: 459.89 ft at 11:00AM Dec 10, 2018Observed: 459.87 ft at 11:15AM Dec 10, 2018Observed: 459.86 ft at 11:30AM Dec 10, 2018Observed: 459.85 ft at 11:45AM Dec 10, 2018Observed: 459.88 ft at 12:00PM Dec 10, 2018Observed: 459.86 ft at 12:15PM Dec 10, 2018Observed: 459.84 ft at 12:30PM Dec 10, 2018Observed: 459.84 ft at 12:45PM Dec 10, 2018Observed: 459.77 ft at 1:00PM Dec 10, 2018Observed: 459.61 ft at 1:15PM Dec 10, 2018Observed: 459.46 ft at 1:30PM Dec 10, 2018Observed: 459.49 ft at 1:45PM Dec 10, 2018Observed: 459.49 ft at 2:00PM Dec 10, 2018Observed: 459.48 ft at 2:15PM Dec 10, 2018Observed: 459.5 ft at 2:30PM Dec 10, 2018Observed: 459.48 ft at 2:45PM Dec 10, 2018Observed: 459.41 ft at 3:00PM Dec 10, 2018Observed: 459.41 ft at 3:15PM Dec 10, 2018Observed: 459.41 ft at 3:30PM Dec 10, 2018Observed: 459.41 ft at 3:45PM Dec 10, 2018Observed: 459.41 ft at 4:00PM Dec 10, 2018Observed: 459.43 ft at 4:15PM Dec 10, 2018Observed: 459.45 ft at 4:30PM Dec 10, 2018Observed: 459.46 ft at 4:45PM Dec 10, 2018Observed: 459.44 ft at 5:00PM Dec 10, 2018Observed: 459.46 ft at 5:15PM Dec 10, 2018Observed: 459.37 ft at 5:30PM Dec 10, 2018Observed: 459.37 ft at 5:45PM Dec 10, 2018Observed: 459.35 ft at 6:00PM Dec 10, 2018Observed: 459.35 ft at 6:15PM Dec 10, 2018Observed: 459.34 ft at 6:30PM Dec 10, 2018Observed: 459.32 ft at 6:45PM Dec 10, 2018Observed: 459.29 ft at 7:00PM Dec 10, 2018Observed: 459.28 ft at 7:15PM Dec 10, 2018Observed: 459.26 ft at 7:30PM Dec 10, 2018Observed: 459.24 ft at 7:45PM Dec 10, 2018Observed: 459.22 ft at 8:00PM Dec 10, 2018Observed: 459.24 ft at 8:15PM Dec 10, 2018Observed: 459.22 ft at 8:30PM Dec 10, 2018Observed: 459.23 ft at 8:45PM Dec 10, 2018Observed: 459.24 ft at 9:00PM Dec 10, 2018Observed: 459.3 ft at 9:15PM Dec 10, 2018Observed: 459.3 ft at 9:30PM Dec 10, 2018Observed: 459.3 ft at 9:45PM Dec 10, 2018Observed: 459.31 ft at 10:00PM Dec 10, 2018Observed: 459.29 ft at 10:15PM Dec 10, 2018Observed: 459.3 ft at 10:30PM Dec 10, 2018Observed: 459.3 ft at 10:45PM Dec 10, 2018Observed: 459.32 ft at 11:00PM Dec 10, 2018Observed: 459.43 ft at 11:15PM Dec 10, 2018Observed: 459.36 ft at 11:30PM Dec 10, 2018Observed: 459.34 ft at 11:45PM Dec 10, 2018Observed: 459.35 ft at 12:00AM Dec 11, 2018Observed: 459.57 ft at 12:15AM Dec 11, 2018Observed: 459.67 ft at 12:30AM Dec 11, 2018Observed: 459.59 ft at 12:45AM Dec 11, 2018Observed: 459.6 ft at 1:00AM Dec 11, 2018Observed: 459.61 ft at 1:15AM Dec 11, 2018Observed: 459.63 ft at 1:30AM Dec 11, 2018Observed: 459.65 ft at 1:45AM Dec 11, 2018Observed: 459.65 ft at 2:00AM Dec 11, 2018Observed: 459.64 ft at 2:15AM Dec 11, 2018Observed: 459.65 ft at 2:30AM Dec 11, 2018Observed: 459.66 ft at 2:45AM Dec 11, 2018Observed: 459.65 ft at 3:00AM Dec 11, 2018Observed: 459.64 ft at 3:15AM Dec 11, 2018Observed: 459.64 ft at 3:30AM Dec 11, 2018Observed: 459.63 ft at 3:45AM Dec 11, 2018Observed: 459.63 ft at 4:00AM Dec 11, 2018Observed: 459.64 ft at 4:15AM Dec 11, 2018Observed: 459.67 ft at 4:30AM Dec 11, 2018Observed: 459.65 ft at 4:45AM Dec 11, 2018Observed: 459.65 ft at 5:00AM Dec 11, 2018Observed: 459.64 ft at 5:15AM Dec 11, 2018Observed: 459.63 ft at 5:30AM Dec 11, 2018Observed: 459.62 ft at 5:45AM Dec 11, 2018Observed: 459.61 ft at 6:00AM Dec 11, 2018Observed: 459.61 ft at 6:15AM Dec 11, 2018Observed: 459.63 ft at 6:30AM Dec 11, 2018Observed: 459.62 ft at 6:45AM Dec 11, 2018Observed: 459.61 ft at 7:00AM Dec 11, 2018Observed: 459.6 ft at 7:15AM Dec 11, 2018Observed: 459.59 ft at 7:30AM Dec 11, 2018Observed: 459.6 ft at 7:45AM Dec 11, 2018Observed: 459.69 ft at 8:00AM Dec 11, 2018Observed: 459.69 ft at 8:15AM Dec 11, 2018Observed: 459.62 ft at 8:30AM Dec 11, 2018Observed: 459.68 ft at 8:45AM Dec 11, 2018Observed: 459.68 ft at 9:00AM Dec 11, 2018Observed: 459.66 ft at 9:15AM Dec 11, 2018Observed: 459.66 ft at 9:30AM Dec 11, 2018Observed: 459.75 ft at 9:45AM Dec 11, 2018Observed: 459.68 ft at 10:00AM Dec 11, 2018Observed: 459.69 ft at 10:15AM Dec 11, 2018Observed: 459.69 ft at 10:30AM Dec 11, 2018Observed: 459.7 ft at 10:45AM Dec 11, 2018Observed: 459.56 ft at 11:00AM Dec 11, 2018Observed: 459.43 ft at 11:15AM Dec 11, 2018Observed: 459.37 ft at 11:30AM Dec 11, 2018Observed: 459.47 ft at 11:45AM Dec 11, 2018Observed: 459.54 ft at 12:00PM Dec 11, 2018Observed: 459.47 ft at 12:15PM Dec 11, 2018Observed: 459.47 ft at 12:30PM Dec 11, 2018Observed: 459.47 ft at 12:45PM Dec 11, 2018Observed: 459.47 ft at 1:00PM Dec 11, 2018Observed: 459.49 ft at 1:15PM Dec 11, 2018Observed: 459.47 ft at 1:30PM Dec 11, 2018Observed: 459.48 ft at 1:45PM Dec 11, 2018Observed: 459.49 ft at 2:00PM Dec 11, 2018Observed: 459.49 ft at 2:15PM Dec 11, 2018Observed: 459.5 ft at 2:30PM Dec 11, 2018Observed: 459.51 ft at 2:45PM Dec 11, 2018Observed: 459.44 ft at 3:00PM Dec 11, 2018Observed: 459.46 ft at 3:15PM Dec 11, 2018Observed: 459.45 ft at 3:30PM Dec 11, 2018Observed: 459.43 ft at 3:45PM Dec 11, 2018Observed: 459.45 ft at 4:00PM Dec 11, 2018Observed: 459.6 ft at 4:15PM Dec 11, 2018Observed: 459.59 ft at 4:30PM Dec 11, 2018Observed: 459.5 ft at 4:45PM Dec 11, 2018Observed: 459.51 ft at 5:00PM Dec 11, 2018Observed: 459.52 ft at 5:15PM Dec 11, 2018Observed: 459.54 ft at 5:30PM Dec 11, 2018Observed: 459.53 ft at 5:45PM Dec 11, 2018Observed: 459.53 ft at 6:00PM Dec 11, 2018Observed: 459.52 ft at 6:15PM Dec 11, 2018Observed: 459.53 ft at 6:30PM Dec 11, 2018Observed: 459.52 ft at 6:45PM Dec 11, 2018Observed: 459.51 ft at 7:00PM Dec 11, 2018Observed: 459.52 ft at 7:15PM Dec 11, 2018Observed: 459.55 ft at 7:30PM Dec 11, 2018Observed: 459.57 ft at 7:45PM Dec 11, 2018Observed: 459.58 ft at 8:00PM Dec 11, 2018Observed: 459.57 ft at 8:15PM Dec 11, 2018Observed: 459.58 ft at 8:30PM Dec 11, 2018Observed: 459.6 ft at 8:45PM Dec 11, 2018Observed: 459.61 ft at 9:00PM Dec 11, 2018Observed: 459.6 ft at 9:15PM Dec 11, 2018Observed: 459.68 ft at 9:30PM Dec 11, 2018Observed: 459.66 ft at 9:45PM Dec 11, 2018Observed: 459.65 ft at 10:00PM Dec 11, 2018Observed: 459.65 ft at 10:15PM Dec 11, 2018Observed: 459.66 ft at 10:30PM Dec 11, 2018Observed: 459.74 ft at 10:45PM Dec 11, 2018Observed: 459.73 ft at 11:00PM Dec 11, 2018Observed: 459.73 ft at 11:15PM Dec 11, 2018Observed: 459.72 ft at 11:30PM Dec 11, 2018Observed: 459.73 ft at 11:45PM Dec 11, 2018Observed: 459.71 ft at 12:00AM Dec 12, 2018Observed: 459.71 ft at 12:15AM Dec 12, 2018Observed: 459.71 ft at 12:30AM Dec 12, 2018Observed: 459.73 ft at 12:45AM Dec 12, 2018Observed: 459.73 ft at 1:00AM Dec 12, 2018Observed: 459.74 ft at 1:15AM Dec 12, 2018Observed: 459.74 ft at 1:30AM Dec 12, 2018Observed: 459.75 ft at 1:45AM Dec 12, 2018Observed: 459.74 ft at 2:00AM Dec 12, 2018Observed: 459.75 ft at 2:15AM Dec 12, 2018Observed: 459.76 ft at 2:30AM Dec 12, 2018Observed: 459.84 ft at 2:45AM Dec 12, 2018Observed: 459.82 ft at 3:00AM Dec 12, 2018Observed: 459.81 ft at 3:15AM Dec 12, 2018Observed: 459.8 ft at 3:30AM Dec 12, 2018Observed: 459.8 ft at 3:45AM Dec 12, 2018Observed: 459.8 ft at 4:00AM Dec 12, 2018Observed: 459.81 ft at 4:15AM Dec 12, 2018Observed: 459.81 ft at 4:30AM Dec 12, 2018Observed: 459.82 ft at 4:45AM Dec 12, 2018Observed: 459.84 ft at 5:00AM Dec 12, 2018Observed: 459.83 ft at 5:15AM Dec 12, 2018Observed: 459.84 ft at 5:30AM Dec 12, 2018Observed: 459.86 ft at 5:45AM Dec 12, 2018Observed: 459.87 ft at 6:00AM Dec 12, 2018Observed: 459.88 ft at 6:15AM Dec 12, 2018Observed: 459.89 ft at 6:30AM Dec 12, 2018Observed: 459.88 ft at 6:45AM Dec 12, 2018Observed: 459.87 ft at 7:00AM Dec 12, 2018Observed: 459.85 ft at 7:15AM Dec 12, 2018Observed: 459.83 ft at 7:30AM Dec 12, 2018Observed: 459.82 ft at 7:45AM Dec 12, 2018Observed: 459.8 ft at 8:00AM Dec 12, 2018Observed: 459.79 ft at 8:15AM Dec 12, 2018Observed: 459.78 ft at 8:30AM Dec 12, 2018Observed: 459.71 ft at 10:45AM Dec 12, 2018Observed: 459.65 ft at 11:00AM Dec 12, 2018Observed: 459.65 ft at 11:15AM Dec 12, 2018Observed: 459.64 ft at 11:30AM Dec 12, 2018Observed: 459.62 ft at 11:45AM Dec 12, 2018Observed: 459.56 ft at 12:00PM Dec 12, 2018Observed: 459.55 ft at 12:15PM Dec 12, 2018Observed: 459.54 ft at 12:30PM Dec 12, 2018Observed: 459.54 ft at 12:45PM Dec 12, 2018Observed: 459.53 ft at 1:00PM Dec 12, 2018Observed: 459.53 ft at 1:15PM Dec 12, 2018Observed: 459.51 ft at 1:30PM Dec 12, 2018Observed: 459.51 ft at 1:45PM Dec 12, 2018Observed: 459.5 ft at 2:00PM Dec 12, 2018Observed: 459.5 ft at 2:15PM Dec 12, 2018Observed: 459.52 ft at 2:30PM Dec 12, 2018Observed: 459.52 ft at 2:45PM Dec 12, 2018Observed: 459.53 ft at 3:00PM Dec 12, 2018Observed: 459.55 ft at 3:15PM Dec 12, 2018Observed: 459.54 ft at 3:30PM Dec 12, 2018Observed: 459.54 ft at 3:45PM Dec 12, 2018Observed: 459.53 ft at 4:00PM Dec 12, 2018Observed: 459.53 ft at 4:15PM Dec 12, 2018Observed: 459.54 ft at 4:30PM Dec 12, 2018Observed: 459.57 ft at 4:45PM Dec 12, 2018Observed: 459.57 ft at 5:00PM Dec 12, 2018Observed: 459.57 ft at 5:15PM Dec 12, 2018Observed: 459.56 ft at 5:30PM Dec 12, 2018Observed: 459.56 ft at 5:45PM Dec 12, 2018Observed: 459.57 ft at 6:00PM Dec 12, 2018Observed: 459.56 ft at 6:15PM Dec 12, 2018Observed: 459.56 ft at 6:30PM Dec 12, 2018Observed: 459.55 ft at 6:45PM Dec 12, 2018Observed: 459.54 ft at 7:00PM Dec 12, 2018Observed: 459.54 ft at 7:15PM Dec 12, 2018Observed: 459.53 ft at 7:30PM Dec 12, 2018Observed: 459.53 ft at 7:45PM Dec 12, 2018Observed: 459.52 ft at 8:00PM Dec 12, 2018Observed: 459.52 ft at 8:15PM Dec 12, 2018Observed: 459.51 ft at 8:30PM Dec 12, 2018Observed: 459.49 ft at 8:45PM Dec 12, 2018Observed: 459.48 ft at 9:00PM Dec 12, 2018Observed: 459.48 ft at 9:15PM Dec 12, 2018Observed: 459.48 ft at 9:30PM Dec 12, 2018Observed: 459.48 ft at 9:45PM Dec 12, 2018Observed: 459.48 ft at 10:00PM Dec 12, 2018Observed: 459.49 ft at 10:15PM Dec 12, 2018Observed: 459.5 ft at 10:30PM Dec 12, 2018Observed: 459.58 ft at 10:45PM Dec 12, 2018Observed: 459.58 ft at 11:00PM Dec 12, 2018Observed: 459.57 ft at 11:15PM Dec 12, 2018Observed: 459.55 ft at 11:30PM Dec 12, 2018Observed: 459.55 ft at 11:45PM Dec 12, 2018Observed: 459.56 ft at 12:00AM Dec 13, 2018Observed: 459.57 ft at 12:15AM Dec 13, 2018Observed: 459.58 ft at 12:30AM Dec 13, 2018Observed: 459.59 ft at 12:45AM Dec 13, 2018Observed: 459.6 ft at 1:00AM Dec 13, 2018Observed: 459.58 ft at 1:15AM Dec 13, 2018Observed: 459.59 ft at 1:30AM Dec 13, 2018Observed: 459.59 ft at 1:45AM Dec 13, 2018Observed: 459.6 ft at 2:00AM Dec 13, 2018Observed: 459.6 ft at 2:15AM Dec 13, 2018Observed: 459.63 ft at 2:30AM Dec 13, 2018Observed: 459.63 ft at 2:45AM Dec 13, 2018Observed: 459.63 ft at 3:00AM Dec 13, 2018Observed: 459.64 ft at 3:15AM Dec 13, 2018Observed: 459.65 ft at 3:30AM Dec 13, 2018Observed: 459.65 ft at 3:45AM Dec 13, 2018Observed: 459.73 ft at 4:00AM Dec 13, 2018Observed: 459.72 ft at 4:15AM Dec 13, 2018Observed: 459.72 ft at 4:30AM Dec 13, 2018Observed: 459.72 ft at 4:45AM Dec 13, 2018Observed: 459.75 ft at 5:00AM Dec 13, 2018Observed: 459.82 ft at 5:15AM Dec 13, 2018Observed: 459.82 ft at 5:30AM Dec 13, 2018Observed: 459.83 ft at 5:45AM Dec 13, 2018Observed: 459.83 ft at 6:00AM Dec 13, 2018Observed: 459.83 ft at 6:15AM Dec 13, 2018Observed: 459.83 ft at 6:30AM Dec 13, 2018Observed: 459.83 ft at 6:45AM Dec 13, 2018Observed: 459.84 ft at 7:00AM Dec 13, 2018Observed: 459.84 ft at 7:15AM Dec 13, 2018Observed: 459.84 ft at 7:30AM Dec 13, 2018Observed: 459.83 ft at 7:45AM Dec 13, 2018Observed: 459.83 ft at 8:00AM Dec 13, 2018Observed: 459.85 ft at 8:15AM Dec 13, 2018Observed: 459.78 ft at 8:30AM Dec 13, 2018Observed: 459.78 ft at 8:45AM Dec 13, 2018Observed: 459.71 ft at 9:00AM Dec 13, 2018Observed: 459.7 ft at 9:15AM Dec 13, 2018Observed: 459.71 ft at 9:30AM Dec 13, 2018Observed: 459.6 ft at 9:45AM Dec 13, 2018Observed: 459.59 ft at 10:00AM Dec 13, 2018Observed: 459.5 ft at 10:15AM Dec 13, 2018Observed: 459.49 ft at 10:30AM Dec 13, 2018Observed: 459.47 ft at 10:45AM Dec 13, 2018Observed: 459.47 ft at 11:00AM Dec 13, 2018Observed: 459.45 ft at 11:15AM Dec 13, 2018Observed: 459.43 ft at 11:30AM Dec 13, 2018Observed: 459.42 ft at 11:45AM Dec 13, 2018Observed: 459.45 ft at 12:00PM Dec 13, 2018Observed: 459.44 ft at 12:15PM Dec 13, 2018Observed: 459.43 ft at 12:30PM Dec 13, 2018Observed: 459.41 ft at 12:45PM Dec 13, 2018Observed: 459.42 ft at 1:00PM Dec 13, 2018Observed: 459.4 ft at 1:15PM Dec 13, 2018Observed: 459.38 ft at 1:30PM Dec 13, 2018US Army Corps of EngineersOTWI2(plotting HGIRG) Graph Created (2:24PM Dec 13, 2018)ObservedLatest observed value: 459.38 ft at 1:30 PM CST 13-Dec-2018. Flood Stage is 463 ft
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About this graph
Tabular Data (UTC)
Tabular Data (CST)
XML Data
RSS Files
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 at Ottawa are issued as needed during times of high water, but are not routinely available.

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Upstream Gauge - at Marseilles lock/dam Upstream Gauge Downstream Gauge Downstream Gauge - at Starved Rock lock/dam
Flood Categories (in feet)
Major Flood Stage: 469
Moderate Flood Stage: 466
Flood Stage: 463
Action Stage: 461
Low Stage (in feet): -9999

Historic Crests
(1) 473.72 ft on 04/19/2013
(2) 472.21 ft on 09/16/2008
(3) 471.49 ft on 02/22/2018 (P)
(4) 470.23 ft on 03/11/2009
(5) 468.87 ft on 12/29/2008
Show More Historic Crests

(P): Preliminary values subject to further review.

Recent Crests
(1) 471.49 ft on 02/22/2018 (P)
(2) 463.65 ft on 10/16/2017 (P)
(3) 464.10 ft on 07/23/2017
(4) 466.46 ft on 05/02/2017
(5) 464.33 ft on 03/31/2017
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.

Zoom Level:16
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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
476 Water reaches the top of the levee at Ottawa High School.
475.5 Backwater causes the Fox River to reach the top of the flood protection wall south of Main Street near Ottawa High School. Water inundates lower-level of residences at Heritage Harbor east of Ottawa.
474.5 Backwater causes the Fox River to reach the top of the levee at Ottawa High School.
474 Structures threatened at Shoreline Boat Club in Ottawa. Main Street at Fox River in Ottawa is threatened and may be closed, blocking the last primary evacuation route for east Ottawa. Water overtops the berm at Waste Water Treatment Plant.
472 West parking lot of St. Elizabeth Medical Center in Ottawa is inundated.
471.5 Water reaches top of levee at Ottawa Waste Water Treatment Plant. Backwater causes the Fox River to inundate the YMCA parking lot in Ottawa.
470 Shabbona Street near Ottawa High School is inundated. St. Elizabeth Medical Center property in Ottawa is threatened including the loading dock areas.
469 Backwater causes the Fox River to reach bankfull near the YMCA in Ottawa.
468 River Rescue structure threatened in Ottawa.
467 Green Street near Shoreline Boat Club in Ottawa is inundated, blocking a primary evacuation route for east Ottawa.
466.5 Low-lying sections of Fox River Park in Ottawa are inundated including Hudson Street River Walk. St. Clair Street is threatened in Ottawa.
465.5 Low-lying property near St. Elizabeth Medical Center is threatened. Marquette High School football threatened.
465 Harbor Walk in Heritage Harbor east of Ottawa is inundated.
464 Backwater causes the Fox River to reach bankfull near St. Elizabeth Medical Center in Ottawa.
462.5 Roadway entrance to Allen Park threatened in Ottawa. Allen Park west boat ramp inundated in Ottawa.
461 River Rescue boat dock inundated in Ottawa.
Photos
(1) Gage equipment located on top of levee near mouth of Fox River.
(2) Levee at Ottawa High School.
(3) Looking downstream from atop levee 9/3/2009. Gage height 459.80 ft.
(4) Looking upstream from atop levee 9/3/2009. Gage height 459.80 ft.
About This Location Collapse

Latitude: 41.344444° N, Longitude: 88.839167° W, Horizontal Datum: NAD83/WGS84

River Stage
Reference Frame
Gauge Height Flood Stage Uses
NWS stage 0 ft 463 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 Not Available 463 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?
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Hydrologic Resources Additional Resources
Collaborative Agencies Collapse
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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Page last modified: 21-Dec-2016 10:37 PM
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