Skip Navigation Link weather.gov  
NOAA logo - Click to go to the NOAA homepage National Weather Service NWS logo - Click to go to the NWS homepage
Advanced Hydrologic Prediction Service
Image background of Navigation bar Left
Bookmark and Share Navigation Bar End Cap

  
 

Web Portal Changes: The Advanced Hydrologic Prediction Service (AHPS) hosted at https://water.weather.gov will be replaced by the National Water Prediction Service (NWPS), with a target of March 2024. Existing AHPS content and features will be preserved and expanded within NWPS.

Experimental National Water Center Products: Flood Inundation Mapping services are now available for 10% of the U.S. population. Please visit https://www.weather.gov/owp/operations for more information. The National Hydrologic Discussion, Area Hydrologic Discussion, Flood Hazard Outlook, and real-time geospatial services depicting River Forecast Center and National Water Model forecasts, continue to be accessible via the URL above, as described in the StoryMap here.



Hydrograph River at a Glance Download
Chicago Sanitary and Ship Canal at Chicago (Western Ave) Stage (ft)Observed: -2.13 ft at 10:50PM Sep 27, 2023Observed: -2.16 ft at 11:00PM Sep 27, 2023Observed: -2.11 ft at 11:10PM Sep 27, 2023Observed: -2.12 ft at 11:20PM Sep 27, 2023Observed: -2.13 ft at 11:30PM Sep 27, 2023Observed: -2.08 ft at 11:40PM Sep 27, 2023Observed: -2.07 ft at 11:50PM Sep 27, 2023Observed: -2.07 ft at 12:00AM Sep 28, 2023Observed: -2.07 ft at 12:10AM Sep 28, 2023Observed: -2.07 ft at 12:20AM Sep 28, 2023Observed: -2.02 ft at 12:30AM Sep 28, 2023Observed: -2.06 ft at 12:40AM Sep 28, 2023Observed: -2.03 ft at 12:50AM Sep 28, 2023Observed: -2.07 ft at 1:00AM Sep 28, 2023Observed: -2.13 ft at 1:10AM Sep 28, 2023Observed: -2.12 ft at 1:20AM Sep 28, 2023Observed: -2.14 ft at 1:30AM Sep 28, 2023Observed: -2.15 ft at 1:40AM Sep 28, 2023Observed: -2.11 ft at 1:50AM Sep 28, 2023Observed: -2.14 ft at 2:00AM Sep 28, 2023Observed: -2.13 ft at 2:10AM Sep 28, 2023Observed: -2.14 ft at 2:20AM Sep 28, 2023Observed: -2.16 ft at 2:30AM Sep 28, 2023Observed: -2.15 ft at 2:40AM Sep 28, 2023Observed: -2.17 ft at 2:50AM Sep 28, 2023Observed: -2.16 ft at 3:00AM Sep 28, 2023Observed: -2.15 ft at 3:10AM Sep 28, 2023Observed: -2.16 ft at 3:20AM Sep 28, 2023Observed: -2.16 ft at 3:30AM Sep 28, 2023Observed: -2.17 ft at 3:40AM Sep 28, 2023Observed: -2.17 ft at 3:50AM Sep 28, 2023Observed: -2.16 ft at 4:00AM Sep 28, 2023Observed: -2.15 ft at 4:10AM Sep 28, 2023Observed: -2.15 ft at 4:20AM Sep 28, 2023Observed: -2.14 ft at 4:30AM Sep 28, 2023Observed: -2.14 ft at 4:40AM Sep 28, 2023Observed: -2.14 ft at 4:50AM Sep 28, 2023Observed: -2.14 ft at 5:00AM Sep 28, 2023Observed: -2.13 ft at 5:10AM Sep 28, 2023Observed: -2.14 ft at 5:20AM Sep 28, 2023Observed: -2.12 ft at 5:30AM Sep 28, 2023Observed: -2.16 ft at 5:40AM Sep 28, 2023Observed: -2.12 ft at 5:50AM Sep 28, 2023Observed: -2.11 ft at 6:00AM Sep 28, 2023Observed: -2.11 ft at 6:10AM Sep 28, 2023Observed: -2.13 ft at 6:20AM Sep 28, 2023Observed: -2.12 ft at 6:30AM Sep 28, 2023Observed: -2.13 ft at 6:40AM Sep 28, 2023Observed: -2.13 ft at 6:50AM Sep 28, 2023Observed: -2.13 ft at 7:00AM Sep 28, 2023Observed: -2.13 ft at 7:10AM Sep 28, 2023Observed: -2.13 ft at 7:20AM Sep 28, 2023Observed: -2.13 ft at 7:30AM Sep 28, 2023Observed: -2.13 ft at 7:40AM Sep 28, 2023Observed: -2.13 ft at 7:50AM Sep 28, 2023Observed: -2.14 ft at 8:00AM Sep 28, 2023Observed: -2.14 ft at 8:10AM Sep 28, 2023Observed: -2.14 ft at 8:20AM Sep 28, 2023Observed: -2.14 ft at 8:30AM Sep 28, 2023Observed: -2.14 ft at 8:40AM Sep 28, 2023Observed: -2.15 ft at 8:50AM Sep 28, 2023Observed: -2.14 ft at 9:00AM Sep 28, 2023Observed: -2.17 ft at 9:10AM Sep 28, 2023Observed: -2.23 ft at 9:20AM Sep 28, 2023Observed: -2.22 ft at 9:30AM Sep 28, 2023Observed: -2.19 ft at 9:40AM Sep 28, 2023Observed: -2.21 ft at 9:50AM Sep 28, 2023Observed: -2.14 ft at 10:00AM Sep 28, 2023Observed: -2.17 ft at 10:10AM Sep 28, 2023Observed: -2.18 ft at 10:20AM Sep 28, 2023Observed: -2.2 ft at 10:30AM Sep 28, 2023Observed: -2.22 ft at 10:40AM Sep 28, 2023Observed: -2.19 ft at 10:50AM Sep 28, 2023Observed: -2.27 ft at 11:00AM Sep 28, 2023Observed: -2.28 ft at 11:10AM Sep 28, 2023Observed: -2.24 ft at 11:20AM Sep 28, 2023Observed: -2.23 ft at 11:30AM Sep 28, 2023Observed: -2.23 ft at 11:40AM Sep 28, 2023Observed: -2.18 ft at 11:50AM Sep 28, 2023Observed: -2.18 ft at 12:00PM Sep 28, 2023Observed: -2.2 ft at 12:10PM Sep 28, 2023Observed: -2.23 ft at 12:20PM Sep 28, 2023Observed: -2.31 ft at 12:30PM Sep 28, 2023Observed: -2.28 ft at 12:40PM Sep 28, 2023Observed: -2.26 ft at 12:50PM Sep 28, 2023Observed: -2.27 ft at 1:00PM Sep 28, 2023Observed: -2.19 ft at 1:10PM Sep 28, 2023Observed: -2.2 ft at 1:20PM Sep 28, 2023Observed: -2.26 ft at 1:30PM Sep 28, 2023Observed: -2.26 ft at 1:40PM Sep 28, 2023Observed: -2.3 ft at 1:50PM Sep 28, 2023Observed: -2.26 ft at 2:00PM Sep 28, 2023Observed: -2.24 ft at 2:10PM Sep 28, 2023Observed: -2.26 ft at 2:20PM Sep 28, 2023Observed: -2.3 ft at 2:30PM Sep 28, 2023Observed: -2.31 ft at 2:40PM Sep 28, 2023Observed: -2.32 ft at 2:50PM Sep 28, 2023Observed: -2.32 ft at 3:00PM Sep 28, 2023Observed: -2.25 ft at 3:10PM Sep 28, 2023Observed: -2.24 ft at 3:20PM Sep 28, 2023Observed: -2.22 ft at 3:30PM Sep 28, 2023Observed: -2.26 ft at 3:40PM Sep 28, 2023Observed: -2.26 ft at 3:50PM Sep 28, 2023Observed: -2.24 ft at 4:00PM Sep 28, 2023Observed: -2.25 ft at 4:10PM Sep 28, 2023Observed: -2.21 ft at 4:20PM Sep 28, 2023Observed: -2.2 ft at 4:30PM Sep 28, 2023Observed: -2.24 ft at 4:40PM Sep 28, 2023Observed: -2.21 ft at 4:50PM Sep 28, 2023Observed: -2.21 ft at 5:00PM Sep 28, 2023Observed: -2.19 ft at 5:10PM Sep 28, 2023Observed: -2.26 ft at 5:20PM Sep 28, 2023Observed: -2.29 ft at 5:30PM Sep 28, 2023Observed: -2.26 ft at 5:40PM Sep 28, 2023Observed: -2.26 ft at 5:50PM Sep 28, 2023Observed: -2.26 ft at 6:00PM Sep 28, 2023Observed: -2.2 ft at 6:10PM Sep 28, 2023Observed: -2.2 ft at 6:20PM Sep 28, 2023Observed: -2.23 ft at 6:30PM Sep 28, 2023Observed: -2.23 ft at 6:40PM Sep 28, 2023Observed: -2.22 ft at 6:50PM Sep 28, 2023Observed: -2.25 ft at 7:00PM Sep 28, 2023Observed: -2.29 ft at 7:10PM Sep 28, 2023Observed: -2.28 ft at 7:20PM Sep 28, 2023Observed: -2.27 ft at 7:30PM Sep 28, 2023Observed: -2.28 ft at 7:40PM Sep 28, 2023Observed: -2.23 ft at 7:50PM Sep 28, 2023Observed: -2.22 ft at 8:00PM Sep 28, 2023Observed: -2.21 ft at 8:10PM Sep 28, 2023Observed: -2.2 ft at 8:20PM Sep 28, 2023Observed: -2.28 ft at 8:30PM Sep 28, 2023Observed: -2.31 ft at 8:40PM Sep 28, 2023Observed: -2.26 ft at 8:50PM Sep 28, 2023Observed: -2.24 ft at 4:50PM Sep 29, 2023Observed: -2.18 ft at 5:00PM Sep 29, 2023Observed: -2.21 ft at 5:10PM Sep 29, 2023Observed: -2.18 ft at 5:20PM Sep 29, 2023Observed: -2.12 ft at 5:30PM Sep 29, 2023Observed: -2.18 ft at 5:40PM Sep 29, 2023Observed: -2.18 ft at 5:50PM Sep 29, 2023Observed: -2.14 ft at 6:00PM Sep 29, 2023Observed: -2.17 ft at 6:10PM Sep 29, 2023Observed: -2.14 ft at 6:20PM Sep 29, 2023Observed: -2.14 ft at 6:30PM Sep 29, 2023Observed: -2.13 ft at 6:40PM Sep 29, 2023Observed: -2.15 ft at 6:50PM Sep 29, 2023Observed: -2.15 ft at 7:00PM Sep 29, 2023Observed: -2.13 ft at 7:10PM Sep 29, 2023Observed: -2.15 ft at 7:20PM Sep 29, 2023Observed: -2.12 ft at 7:30PM Sep 29, 2023Observed: -2.1 ft at 7:40PM Sep 29, 2023Observed: -2.12 ft at 7:50PM Sep 29, 2023Observed: -2.09 ft at 8:00PM Sep 29, 2023Observed: -2.1 ft at 8:10PM Sep 29, 2023Observed: -2.12 ft at 8:20PM Sep 29, 2023Observed: -2.11 ft at 8:30PM Sep 29, 2023Observed: -2.12 ft at 8:40PM Sep 29, 2023Observed: -2.14 ft at 8:50PM Sep 29, 2023Observed: -2.12 ft at 9:00PM Sep 29, 2023Observed: -2.1 ft at 9:10PM Sep 29, 2023Observed: -2.1 ft at 9:20PM Sep 29, 2023Observed: -2.09 ft at 9:30PM Sep 29, 2023Observed: -2.08 ft at 9:40PM Sep 29, 2023Observed: -2.11 ft at 9:50PM Sep 29, 2023Observed: -2.11 ft at 10:00PM Sep 29, 2023Observed: -2.1 ft at 10:10PM Sep 29, 2023Observed: -2.12 ft at 10:20PM Sep 29, 2023Observed: -2.1 ft at 10:30PM Sep 29, 2023Observed: -2.11 ft at 10:40PM Sep 29, 2023Observed: -2.09 ft at 10:50PM Sep 29, 2023Observed: -2.1 ft at 11:00PM Sep 29, 2023Observed: -2.1 ft at 11:10PM Sep 29, 2023Observed: -2.11 ft at 11:20PM Sep 29, 2023Observed: -2.1 ft at 11:30PM Sep 29, 2023Observed: -2.1 ft at 11:40PM Sep 29, 2023Observed: -2.1 ft at 11:50PM Sep 29, 2023Observed: -2.09 ft at 12:00AM Sep 30, 2023Observed: -2.1 ft at 12:10AM Sep 30, 2023Observed: -2.09 ft at 12:20AM Sep 30, 2023Observed: -2.09 ft at 12:30AM Sep 30, 2023Observed: -2.09 ft at 12:40AM Sep 30, 2023Observed: -2.09 ft at 12:50AM Sep 30, 2023Observed: -2.09 ft at 1:00AM Sep 30, 2023Observed: -2.09 ft at 1:10AM Sep 30, 2023Observed: -2.08 ft at 1:20AM Sep 30, 2023Observed: -2.08 ft at 1:30AM Sep 30, 2023Observed: -2.08 ft at 1:40AM Sep 30, 2023Observed: -2.07 ft at 1:50AM Sep 30, 2023Observed: -2.06 ft at 2:00AM Sep 30, 2023Observed: -2.08 ft at 2:10AM Sep 30, 2023Observed: -2.07 ft at 2:20AM Sep 30, 2023Observed: -2.07 ft at 2:30AM Sep 30, 2023Observed: -2.07 ft at 2:40AM Sep 30, 2023Observed: -2.06 ft at 2:50AM Sep 30, 2023Observed: -2.06 ft at 3:00AM Sep 30, 2023Observed: -2.06 ft at 3:10AM Sep 30, 2023Observed: -2.06 ft at 3:20AM Sep 30, 2023Observed: -2.06 ft at 3:30AM Sep 30, 2023Observed: -2.06 ft at 3:40AM Sep 30, 2023Observed: -2.05 ft at 3:50AM Sep 30, 2023Observed: -2.05 ft at 4:00AM Sep 30, 2023Observed: -2.04 ft at 4:10AM Sep 30, 2023Observed: -2.04 ft at 4:20AM Sep 30, 2023Observed: -2.04 ft at 4:30AM Sep 30, 2023Observed: -2.04 ft at 4:40AM Sep 30, 2023Observed: -2.04 ft at 4:50AM Sep 30, 2023Observed: -2.04 ft at 5:00AM Sep 30, 2023Observed: -2.04 ft at 5:10AM Sep 30, 2023Observed: -2.04 ft at 5:20AM Sep 30, 2023Observed: -2.02 ft at 5:30AM Sep 30, 2023Observed: -2.03 ft at 5:40AM Sep 30, 2023Observed: -2.02 ft at 5:50AM Sep 30, 2023Observed: -2.02 ft at 6:00AM Sep 30, 2023Observed: -2.02 ft at 6:10AM Sep 30, 2023Observed: -2.03 ft at 6:20AM Sep 30, 2023Observed: -2.02 ft at 6:30AM Sep 30, 2023Observed: -2.02 ft at 6:40AM Sep 30, 2023Observed: -2.02 ft at 6:50AM Sep 30, 2023Observed: -2.01 ft at 7:00AM Sep 30, 2023Observed: -2.01 ft at 7:10AM Sep 30, 2023Observed: -2.02 ft at 7:20AM Sep 30, 2023Observed: -2.01 ft at 7:30AM Sep 30, 2023Observed: -2.02 ft at 7:40AM Sep 30, 2023Observed: -2 ft at 7:50AM Sep 30, 2023Observed: -2.01 ft at 8:00AM Sep 30, 2023Observed: -2 ft at 8:10AM Sep 30, 2023Observed: -2.01 ft at 8:20AM Sep 30, 2023Observed: -2.01 ft at 8:30AM Sep 30, 2023Observed: -2 ft at 8:40AM Sep 30, 2023Observed: -2 ft at 8:50AM Sep 30, 2023Observed: -2 ft at 9:00AM Sep 30, 2023Observed: -1.99 ft at 9:10AM Sep 30, 2023Observed: -1.97 ft at 9:20AM Sep 30, 2023Observed: -2 ft at 9:30AM Sep 30, 2023Observed: -1.99 ft at 9:40AM Sep 30, 2023Observed: -1.99 ft at 9:50AM Sep 30, 2023Observed: -2 ft at 10:00AM Sep 30, 2023Observed: -1.98 ft at 10:10AM Sep 30, 2023Observed: -1.99 ft at 10:20AM Sep 30, 2023Observed: -1.99 ft at 10:30AM Sep 30, 2023Observed: -1.97 ft at 10:40AM Sep 30, 2023Observed: -1.98 ft at 10:50AM Sep 30, 2023Observed: -1.96 ft at 11:00AM Sep 30, 2023Observed: -1.97 ft at 11:10AM Sep 30, 2023Observed: -1.99 ft at 11:20AM Sep 30, 2023Observed: -1.94 ft at 11:30AM Sep 30, 2023Observed: -1.99 ft at 11:40AM Sep 30, 2023Observed: -1.96 ft at 11:50AM Sep 30, 2023Observed: -1.96 ft at 12:00PM Sep 30, 2023Observed: -1.98 ft at 12:10PM Sep 30, 2023Observed: -1.94 ft at 12:20PM Sep 30, 2023Observed: -1.96 ft at 12:30PM Sep 30, 2023Observed: -1.96 ft at 12:40PM Sep 30, 2023Observed: -1.94 ft at 12:50PM Sep 30, 2023Observed: -1.94 ft at 1:00PM Sep 30, 2023Observed: -1.94 ft at 1:10PM Sep 30, 2023Observed: -1.99 ft at 1:20PM Sep 30, 2023Observed: -2.03 ft at 1:30PM Sep 30, 2023Observed: -2.01 ft at 1:40PM Sep 30, 2023Observed: -1.98 ft at 1:50PM Sep 30, 2023Observed: -1.98 ft at 2:00PM Sep 30, 2023Observed: -1.92 ft at 2:10PM Sep 30, 2023Observed: -1.97 ft at 2:20PM Sep 30, 2023Observed: -2.01 ft at 2:30PM Sep 30, 2023Observed: -2.04 ft at 2:40PM Sep 30, 2023Observed: -1.98 ft at 2:50PM Sep 30, 2023Observed: -1.99 ft at 3:00PM Sep 30, 2023Observed: -1.95 ft at 3:10PM Sep 30, 2023Observed: -1.93 ft at 3:20PM Sep 30, 2023Observed: -1.94 ft at 3:30PM Sep 30, 2023Observed: -1.98 ft at 3:40PM Sep 30, 2023Observed: -1.98 ft at 3:50PM Sep 30, 2023Observed: -1.93 ft at 4:00PM Sep 30, 2023Observed: -1.93 ft at 4:10PM Sep 30, 2023Observed: -1.95 ft at 4:20PM Sep 30, 2023Observed: -1.94 ft at 4:30PM Sep 30, 2023Observed: -1.94 ft at 4:40PM Sep 30, 2023Observed: -1.92 ft at 4:50PM Sep 30, 2023Observed: -1.92 ft at 5:00PM Sep 30, 2023Observed: -1.91 ft at 5:10PM Sep 30, 2023Observed: -1.91 ft at 5:20PM Sep 30, 2023Observed: -1.92 ft at 5:30PM Sep 30, 2023Observed: -1.94 ft at 5:40PM Sep 30, 2023Observed: -1.92 ft at 5:50PM Sep 30, 2023Observed: -1.91 ft at 6:00PM Sep 30, 2023Observed: -1.91 ft at 6:10PM Sep 30, 2023Observed: -1.9 ft at 6:20PM Sep 30, 2023Observed: -1.92 ft at 6:30PM Sep 30, 2023Observed: -1.92 ft at 6:40PM Sep 30, 2023Observed: -1.93 ft at 6:50PM Sep 30, 2023Observed: -1.9 ft at 7:00PM Sep 30, 2023Observed: -1.91 ft at 7:10PM Sep 30, 2023Observed: -1.89 ft at 7:20PM Sep 30, 2023Observed: -1.91 ft at 7:30PM Sep 30, 2023Observed: -1.92 ft at 7:40PM Sep 30, 2023Observed: -1.94 ft at 7:50PM Sep 30, 2023Observed: -1.92 ft at 8:00PM Sep 30, 2023Observed: -1.93 ft at 8:10PM Sep 30, 2023Observed: -1.93 ft at 8:20PM Sep 30, 2023Observed: -1.91 ft at 8:30PM Sep 30, 2023Observed: -1.89 ft at 8:40PM Sep 30, 2023Observed: -1.92 ft at 8:50PM Sep 30, 2023Observed: -1.9 ft at 9:00PM Sep 30, 2023Observed: -1.9 ft at 9:10PM Sep 30, 2023Observed: -1.9 ft at 9:20PM Sep 30, 2023Observed: -1.9 ft at 9:30PM Sep 30, 2023Observed: -1.92 ft at 9:40PM Sep 30, 2023Observed: -2 ft at 9:50PM Sep 30, 2023Observed: -1.97 ft at 10:00PM Sep 30, 2023Observed: -1.94 ft at 10:10PM Sep 30, 2023Observed: -1.95 ft at 10:20PM Sep 30, 2023Observed: -1.89 ft at 10:30PM Sep 30, 2023Observed: -1.9 ft at 10:40PM Sep 30, 2023Observed: -1.92 ft at 10:50PM Sep 30, 2023Observed: -2.02 ft at 11:00PM Sep 30, 2023Observed: -2.01 ft at 11:10PM Sep 30, 2023Observed: -1.97 ft at 11:20PM Sep 30, 2023Observed: -1.95 ft at 11:30PM Sep 30, 2023Observed: -1.94 ft at 11:40PM Sep 30, 2023Observed: -1.91 ft at 11:50PM Sep 30, 2023Observed: -1.91 ft at 12:00AM Oct 01, 2023Observed: -1.95 ft at 12:10AM Oct 01, 2023Observed: -1.94 ft at 12:20AM Oct 01, 2023Observed: -1.91 ft at 12:30AM Oct 01, 2023Observed: -1.91 ft at 12:40AM Oct 01, 2023Observed: -1.95 ft at 12:50AM Oct 01, 2023Observed: -1.89 ft at 1:00AM Oct 01, 2023Observed: -1.93 ft at 1:10AM Oct 01, 2023Observed: -1.94 ft at 1:20AM Oct 01, 2023Observed: -2.01 ft at 1:30AM Oct 01, 2023Observed: -1.99 ft at 1:40AM Oct 01, 2023Observed: -1.97 ft at 1:50AM Oct 01, 2023Observed: -1.98 ft at 2:00AM Oct 01, 2023Observed: -1.94 ft at 2:10AM Oct 01, 2023Observed: -1.91 ft at 2:20AM Oct 01, 2023Observed: -1.92 ft at 2:30AM Oct 01, 2023Observed: -1.96 ft at 2:40AM Oct 01, 2023Observed: -1.96 ft at 2:50AM Oct 01, 2023Observed: -1.97 ft at 3:00AM Oct 01, 2023Observed: -1.96 ft at 3:10AM Oct 01, 2023Observed: -1.97 ft at 3:20AM Oct 01, 2023Observed: -1.94 ft at 3:30AM Oct 01, 2023Observed: -1.93 ft at 3:40AM Oct 01, 2023Observed: -1.94 ft at 3:50AM Oct 01, 2023Observed: -1.94 ft at 4:00AM Oct 01, 2023Observed: -1.93 ft at 4:10AM Oct 01, 2023Observed: -1.94 ft at 4:20AM Oct 01, 2023Observed: -1.95 ft at 4:30AM Oct 01, 2023Observed: -1.94 ft at 4:40AM Oct 01, 2023Observed: -1.93 ft at 4:50AM Oct 01, 2023Observed: -1.95 ft at 5:00AM Oct 01, 2023Observed: -1.93 ft at 5:10AM Oct 01, 2023Observed: -1.93 ft at 5:20AM Oct 01, 2023Observed: -1.94 ft at 5:30AM Oct 01, 2023Observed: -1.94 ft at 5:40AM Oct 01, 2023Observed: -1.94 ft at 5:50AM Oct 01, 2023Observed: -1.94 ft at 6:00AM Oct 01, 2023Observed: -1.93 ft at 6:10AM Oct 01, 2023Observed: -1.94 ft at 6:20AM Oct 01, 2023Observed: -1.93 ft at 6:30AM Oct 01, 2023Observed: -1.93 ft at 6:40AM Oct 01, 2023Observed: -1.94 ft at 6:50AM Oct 01, 2023Observed: -1.94 ft at 7:00AM Oct 01, 2023Observed: -1.94 ft at 7:10AM Oct 01, 2023Observed: -1.95 ft at 7:20AM Oct 01, 2023Observed: -1.94 ft at 7:30AM Oct 01, 2023Observed: -1.92 ft at 7:40AM Oct 01, 2023Observed: -1.95 ft at 7:50AM Oct 01, 2023Observed: -1.94 ft at 8:00AM Oct 01, 2023Observed: -1.95 ft at 8:10AM Oct 01, 2023Observed: -1.95 ft at 8:20AM Oct 01, 2023Observed: -1.94 ft at 8:30AM Oct 01, 2023Observed: -1.93 ft at 8:40AM Oct 01, 2023Observed: -1.94 ft at 8:50AM Oct 01, 2023Observed: -1.92 ft at 9:00AM Oct 01, 2023Observed: -1.94 ft at 9:10AM Oct 01, 2023Observed: -1.94 ft at 9:20AM Oct 01, 2023Observed: -1.93 ft at 9:30AM Oct 01, 2023Observed: -1.92 ft at 9:40AM Oct 01, 2023Observed: -1.94 ft at 9:50AM Oct 01, 2023Observed: -1.93 ft at 10:00AM Oct 01, 2023Observed: -1.92 ft at 10:10AM Oct 01, 2023Observed: -1.93 ft at 10:20AM Oct 01, 2023Observed: -1.93 ft at 10:30AM Oct 01, 2023Observed: -1.91 ft at 10:40AM Oct 01, 2023Observed: -1.94 ft at 10:50AM Oct 01, 2023Observed: -1.93 ft at 11:00AM Oct 01, 2023Observed: -1.92 ft at 11:10AM Oct 01, 2023Observed: -1.96 ft at 11:20AM Oct 01, 2023Observed: -1.93 ft at 11:30AM Oct 01, 2023Observed: -1.92 ft at 11:40AM Oct 01, 2023Observed: -1.95 ft at 11:50AM Oct 01, 2023Observed: -1.93 ft at 12:00PM Oct 01, 2023Observed: -1.93 ft at 12:10PM Oct 01, 2023Observed: -1.98 ft at 12:20PM Oct 01, 2023Observed: -2.03 ft at 12:30PM Oct 01, 2023Observed: -2.03 ft at 12:40PM Oct 01, 2023Observed: -2.02 ft at 12:50PM Oct 01, 2023Observed: -1.99 ft at 1:00PM Oct 01, 2023Observed: -1.97 ft at 1:10PM Oct 01, 2023Observed: -1.96 ft at 1:20PM Oct 01, 2023Observed: -1.96 ft at 1:30PM Oct 01, 2023Observed: -1.99 ft at 1:40PM Oct 01, 2023Observed: -2 ft at 1:50PM Oct 01, 2023Observed: -1.99 ft at 2:00PM Oct 01, 2023Observed: -2.01 ft at 2:10PM Oct 01, 2023Observed: -2.09 ft at 2:20PM Oct 01, 2023Observed: -2.06 ft at 2:30PM Oct 01, 2023Observed: -2.04 ft at 2:40PM Oct 01, 2023Observed: -2.06 ft at 2:50PM Oct 01, 2023Observed: -2.01 ft at 3:00PM Oct 01, 2023Observed: -1.98 ft at 3:10PM Oct 01, 2023Observed: -2.03 ft at 3:20PM Oct 01, 2023Observed: -2.11 ft at 3:30PM Oct 01, 2023Observed: -2.11 ft at 3:40PM Oct 01, 2023Observed: -2.06 ft at 3:50PM Oct 01, 2023Observed: -2.06 ft at 4:00PM Oct 01, 2023Observed: -2.04 ft at 4:10PM Oct 01, 2023Observed: -2.01 ft at 4:20PM Oct 01, 2023Observed: -2.02 ft at 4:30PM Oct 01, 2023Observed: -2.07 ft at 4:40PM Oct 01, 2023Observed: -2.05 ft at 4:50PM Oct 01, 2023Observed: -2.1 ft at 5:00PM Oct 01, 2023Observed: -2.1 ft at 5:10PM Oct 01, 2023Observed: -2.08 ft at 5:20PM Oct 01, 2023Observed: -2.07 ft at 5:30PM Oct 01, 2023Observed: -2.06 ft at 5:40PM Oct 01, 2023Observed: -2.04 ft at 5:50PM Oct 01, 2023Observed: -2.01 ft at 6:00PM Oct 01, 2023Observed: -2.06 ft at 6:10PM Oct 01, 2023Observed: -2.07 ft at 6:20PM Oct 01, 2023Observed: -2.07 ft at 6:30PM Oct 01, 2023Observed: -2.04 ft at 6:40PM Oct 01, 2023Observed: -2.04 ft at 6:50PM Oct 01, 2023Observed: -2.03 ft at 7:00PM Oct 01, 2023Observed: -2.02 ft at 7:10PM Oct 01, 2023Observed: -2.05 ft at 7:20PM Oct 01, 2023Observed: -2.08 ft at 7:30PM Oct 01, 2023Observed: -2.12 ft at 7:40PM Oct 01, 2023Observed: -2.13 ft at 7:50PM Oct 01, 2023Observed: -2.11 ft at 8:00PM Oct 01, 2023Observed: -2.07 ft at 8:10PM Oct 01, 2023Observed: -2.04 ft at 8:20PM Oct 01, 2023Observed: -2.03 ft at 8:30PM Oct 01, 2023Observed: -2.04 ft at 8:40PM Oct 01, 2023Observed: -2.06 ft at 8:50PM Oct 01, 2023Observed: -2.09 ft at 9:00PM Oct 01, 2023Observed: -2.07 ft at 9:10PM Oct 01, 2023Observed: -2.05 ft at 9:20PM Oct 01, 2023Observed: -2.09 ft at 9:30PM Oct 01, 2023Observed: -2.04 ft at 9:40PM Oct 01, 2023Observed: -2.04 ft at 9:50PM Oct 01, 2023Observed: -2.06 ft at 10:00PM Oct 01, 2023Observed: -2.06 ft at 10:10PM Oct 01, 2023Observed: -2.04 ft at 10:20PM Oct 01, 2023Observed: -2.03 ft at 10:30PM Oct 01, 2023Observed: -2.07 ft at 10:40PM Oct 01, 2023Observed: -2.03 ft at 10:50PM Oct 01, 2023Observed: -2.06 ft at 11:00PM Oct 01, 2023Observed: -2.06 ft at 11:10PM Oct 01, 2023Observed: -2.02 ft at 11:20PM Oct 01, 2023Observed: -2.07 ft at 11:30PM Oct 01, 2023Observed: -2.14 ft at 11:40PM Oct 01, 2023Observed: -2.13 ft at 11:50PM Oct 01, 2023Observed: -2.14 ft at 12:00AM Oct 02, 2023Observed: -2.11 ft at 12:10AM Oct 02, 2023Observed: -2.07 ft at 12:20AM Oct 02, 2023Observed: -2.05 ft at 12:30AM Oct 02, 2023Observed: -2.06 ft at 12:40AM Oct 02, 2023Observed: -2.06 ft at 12:50AM Oct 02, 2023Observed: -2.12 ft at 1:00AM Oct 02, 2023Observed: -2.1 ft at 1:10AM Oct 02, 2023Observed: -2.1 ft at 1:20AM Oct 02, 2023Observed: -2.12 ft at 1:30AM Oct 02, 2023Observed: -2.08 ft at 1:40AM Oct 02, 2023Observed: -2.09 ft at 1:50AM Oct 02, 2023Observed: -2.1 ft at 2:00AM Oct 02, 2023Observed: -2.1 ft at 2:10AM Oct 02, 2023Observed: -2.07 ft at 2:20AM Oct 02, 2023Observed: -2.09 ft at 2:30AM Oct 02, 2023Observed: -2.09 ft at 2:40AM Oct 02, 2023Observed: -2.09 ft at 2:50AM Oct 02, 2023Observed: -2.1 ft at 3:00AM Oct 02, 2023Observed: -2.1 ft at 3:10AM Oct 02, 2023Observed: -2.09 ft at 3:20AM Oct 02, 2023Observed: -2.1 ft at 3:30AM Oct 02, 2023Observed: -2.09 ft at 3:40AM Oct 02, 2023Observed: -2.1 ft at 3:50AM Oct 02, 2023Observed: -2.1 ft at 4:00AM Oct 02, 2023Observed: -2.09 ft at 4:10AM Oct 02, 2023Observed: -2.09 ft at 4:20AM Oct 02, 2023Observed: -2.09 ft at 4:30AM Oct 02, 2023Observed: -2.09 ft at 4:40AM Oct 02, 2023Observed: -2.11 ft at 4:50AM Oct 02, 2023Observed: -2.1 ft at 5:00AM Oct 02, 2023Observed: -2.11 ft at 5:10AM Oct 02, 2023Observed: -2.12 ft at 5:20AM Oct 02, 2023Observed: -2.12 ft at 5:30AM Oct 02, 2023Observed: -2.11 ft at 5:40AM Oct 02, 2023Observed: -2.11 ft at 5:50AM Oct 02, 2023Observed: -2.12 ft at 6:00AM Oct 02, 2023Observed: -2.13 ft at 6:10AM Oct 02, 2023Observed: -2.13 ft at 6:20AM Oct 02, 2023Observed: -2.14 ft at 6:30AM Oct 02, 2023Observed: -2.13 ft at 6:40AM Oct 02, 2023Observed: -2.13 ft at 6:50AM Oct 02, 2023Observed: -2.14 ft at 7:00AM Oct 02, 2023Observed: -2.14 ft at 7:10AM Oct 02, 2023Observed: -2.14 ft at 7:20AM Oct 02, 2023Observed: -2.2 ft at 7:30AM Oct 02, 2023Observed: -2.22 ft at 7:40AM Oct 02, 2023Observed: -2.22 ft at 7:50AM Oct 02, 2023Observed: -2.19 ft at 8:00AM Oct 02, 2023Observed: -2.17 ft at 8:10AM Oct 02, 2023Observed: -2.16 ft at 8:20AM Oct 02, 2023Observed: -2.14 ft at 8:30AM Oct 02, 2023Observed: -2.16 ft at 8:40AM Oct 02, 2023Observed: -2.21 ft at 8:50AM Oct 02, 2023Observed: -2.19 ft at 9:00AM Oct 02, 2023Observed: -2.16 ft at 9:10AM Oct 02, 2023Observed: -2.21 ft at 9:20AM Oct 02, 2023Observed: -2.17 ft at 9:30AM Oct 02, 2023Observed: -2.18 ft at 9:40AM Oct 02, 2023Observed: -2.2 ft at 9:50AM Oct 02, 2023Observed: -2.21 ft at 10:00AM Oct 02, 2023Observed: -2.16 ft at 10:10AM Oct 02, 2023Observed: -2.18 ft at 10:20AM Oct 02, 2023Observed: -2.17 ft at 10:30AM Oct 02, 2023Observed: -2.15 ft at 10:40AM Oct 02, 2023Observed: -2.2 ft at 10:50AM Oct 02, 2023Observed: -2.26 ft at 11:00AM Oct 02, 2023Observed: -2.27 ft at 11:10AM Oct 02, 2023Observed: -2.27 ft at 11:20AM Oct 02, 2023Observed: -2.26 ft at 11:30AM Oct 02, 2023Observed: -2.21 ft at 11:40AM Oct 02, 2023Observed: -2.22 ft at 11:50AM Oct 02, 2023Observed: -2.18 ft at 12:00PM Oct 02, 2023Observed: -2.21 ft at 12:10PM Oct 02, 2023Observed: -2.25 ft at 12:20PM Oct 02, 2023Observed: -2.2 ft at 12:30PM Oct 02, 2023Observed: -2.22 ft at 12:40PM Oct 02, 2023Observed: -2.26 ft at 12:50PM Oct 02, 2023Observed: -2.28 ft at 1:00PM Oct 02, 2023Observed: -2.28 ft at 1:10PM Oct 02, 2023Observed: -2.19 ft at 1:20PM Oct 02, 2023Observed: -2.16 ft at 1:30PM Oct 02, 2023Observed: -2.09 ft at 1:40PM Oct 02, 2023Observed: -2.1 ft at 1:50PM Oct 02, 2023Observed: -2.2 ft at 2:00PM Oct 02, 2023Observed: -2.22 ft at 2:10PM Oct 02, 2023Observed: -2.15 ft at 2:20PM Oct 02, 2023Observed: -2.14 ft at 2:30PM Oct 02, 2023Observed: -2.04 ft at 2:40PM Oct 02, 2023Observed: -2.02 ft at 2:50PM Oct 02, 2023Observed: -2.06 ft at 3:00PM Oct 02, 2023Observed: -2.15 ft at 3:10PM Oct 02, 2023Observed: -2.18 ft at 3:20PM Oct 02, 2023Observed: -2.16 ft at 3:30PM Oct 02, 2023Observed: -2.14 ft at 3:40PM Oct 02, 2023Observed: -2.14 ft at 3:50PM Oct 02, 2023Observed: -2.14 ft at 4:00PM Oct 02, 2023Observed: -2.1 ft at 4:10PM Oct 02, 2023Observed: -2.18 ft at 4:20PM Oct 02, 2023Observed: -2.22 ft at 4:30PM Oct 02, 2023Observed: -2.1 ft at 4:40PM Oct 02, 2023Observed: -2.12 ft at 4:50PM Oct 02, 2023Observed: -2.14 ft at 5:00PM Oct 02, 2023Observed: -2.07 ft at 5:10PM Oct 02, 2023Observed: -2.08 ft at 5:20PM Oct 02, 2023Observed: -2.21 ft at 5:30PM Oct 02, 2023Observed: -2.18 ft at 5:40PM Oct 02, 2023Observed: -2.12 ft at 5:50PM Oct 02, 2023Observed: -2.08 ft at 6:00PM Oct 02, 2023Observed: -2.08 ft at 6:10PM Oct 02, 2023Observed: -2.01 ft at 6:20PM Oct 02, 2023Observed: -2.01 ft at 6:30PM Oct 02, 2023Observed: -2.06 ft at 6:40PM Oct 02, 2023Observed: -2.03 ft at 6:50PM Oct 02, 2023Observed: -2.06 ft at 7:00PM Oct 02, 2023Observed: -2.09 ft at 7:10PM Oct 02, 2023Observed: -2.08 ft at 7:20PM Oct 02, 2023Observed: -2 ft at 7:30PM Oct 02, 2023Observed: -2.03 ft at 7:40PM Oct 02, 2023Observed: -1.96 ft at 7:50PM Oct 02, 2023Observed: -1.92 ft at 8:00PM Oct 02, 2023Observed: -1.94 ft at 8:10PM Oct 02, 2023Observed: -1.96 ft at 8:20PM Oct 02, 2023Observed: -2.02 ft at 8:30PM Oct 02, 2023Observed: -2.1 ft at 8:40PM Oct 02, 2023Observed: -2.02 ft at 8:50PM Oct 02, 2023Observed: -1.97 ft at 9:00PM Oct 02, 2023Observed: -2 ft at 9:10PM Oct 02, 2023Observed: -1.9 ft at 9:20PM Oct 02, 2023Observed: -1.93 ft at 9:30PM Oct 02, 2023Observed: -1.98 ft at 9:40PM Oct 02, 2023Observed: -1.94 ft at 9:50PM Oct 02, 2023USGS--Water Resources of the United StatesCSWI2(plotting HGIRP) Graph Created (10:40PM Oct 2, 2023)ObservedLatest observed value: -1.94 ft at 9:50 PM CDT 2-Oct-2023. Flood Stage is 4 ft
Printable Image
About this graph
Tabular Data (UTC)
Tabular Data (CDT)
XML Data
RSS Files
Datum: NAVD88
Metadata
NOTE: Graphical forecasts are not available for the Chicago Sanitary and Ship Canal at Chicago (Western Ave). During times of high water, forecast crest information can be found in the text products.
Return to Area Map
Upstream Gauge - at Chicago (Grand Ave) Upstream Gauge Downstream Gauge Downstream Gauge - at Stickney
Flood Categories (in feet)
Major Flood Stage: 0
Moderate Flood Stage: 0
Flood Stage: 4
Action Stage: 2
Low Stage (in feet): -4

Historic Crests
(1) 5.26 ft on 05/17/2020
(2) 4.10 ft on 06/30/1977
(3) 3.62 ft on 10/14/2017
(4) 3.07 ft on 06/15/2015
(5) 1.65 ft on 05/01/2019

(P): Preliminary values subject to further review.

Recent Crests
(1) 5.26 ft on 05/17/2020
(2) 1.65 ft on 05/01/2019
(3) 3.62 ft on 10/14/2017
(4) 3.07 ft on 06/15/2015
(5) 4.10 ft on 06/30/1977

(P): Preliminary values subject to further review.

Low Water Records
(1) -3.90 ft on 06/25/2015

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
7 Structures are threatened near the canal in the Bridgeport, Lower West Side, McKinley Park, and South Lawndale areas of Chicago. Structures are threatened near the South Branch Chicago River along Iron Street in the Bridgeport and McKinley Park areas of Chicago.
6 Structures are threatened near Ping Tom Park and in the Armour Square, Near South Side, and Lower West Side areas of Chicago.
4 The canal overflows low-lying banks in the Bridgeport, Lower West Side, McKinley Park, and South Lawndale areas of Chicago.
2 Low-lying sections of Ping Tom Park are inundated.
Low Water Impacts Collapse
If you notice any errors in the below information, please contact our Webmaster
-4 Low water levels begin to impact shipping interests along the river.
About This Location Collapse

Latitude: 41.837190° N, Longitude: 87.685420° W, Horizontal Datum: NAD83/WGS84

River Stage
Reference Frame
Gauge Height Flood Stage Uses
NWS stage 0 ft 4 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 579.20 Not Available Survey grade GPS equipment, FEMA flood plain maps, newer USGS topographic maps
NGVD 29 579.48 Not Available Older USGS topographic maps, NGVD29 benchmarks
MSL Not Available Not Available Older USGS topographic maps, MSL benchmarks
Other Not Available Not Available Chicago City Datum

Current/Historical Observations:

Resources Collapse
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
Ask Questions/Webmaster
Page last modified: 2-Nov-2020 7:29 PM
Disclaimer
Credits
Glossary
Privacy Policy
About Us
Career Opportunities