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  NOTICE:There is a service interruption for a number of stream gauges nationwide due to the Global Positioning System (GPS) Rollover that occurred on April 6 at 23:59 GMT. The National Weather Service is working with federal, state, and local partners to ensure those affected gauges obtain the necessary updates to resume data transmission. We apologize for the service interruption and hope to have the data restored as soon as possible.

Hydrograph River at a Glance Download
Sawmill Creek (IL) near Lemont Stage (ft)Flow (kcfs)Highest Observation: 9.34 ft at 5:15AM Apr 19, 2019Highest Observation: 9.34 ft at 5:30AM Apr 19, 2019Observed: 9.33 ft at 5:45AM Apr 19, 2019Observed: 9.33 ft at 6:00AM Apr 19, 2019Observed: 9.32 ft at 6:15AM Apr 19, 2019Observed: 9.31 ft at 6:30AM Apr 19, 2019Observed: 9.31 ft at 6:45AM Apr 19, 2019Observed: 9.3 ft at 7:00AM Apr 19, 2019Observed: 9.3 ft at 7:15AM Apr 19, 2019Observed: 9.29 ft at 7:30AM Apr 19, 2019Observed: 9.29 ft at 7:45AM Apr 19, 2019Observed: 9.28 ft at 8:00AM Apr 19, 2019Observed: 9.28 ft at 8:15AM Apr 19, 2019Observed: 9.27 ft at 8:30AM Apr 19, 2019Observed: 9.27 ft at 8:45AM Apr 19, 2019Observed: 9.27 ft at 9:00AM Apr 19, 2019Observed: 9.26 ft at 9:15AM Apr 19, 2019Observed: 9.26 ft at 9:30AM Apr 19, 2019Observed: 9.25 ft at 9:45AM Apr 19, 2019Observed: 9.25 ft at 10:00AM Apr 19, 2019Observed: 9.24 ft at 10:15AM Apr 19, 2019Observed: 9.24 ft at 10:30AM Apr 19, 2019Observed: 9.24 ft at 10:45AM Apr 19, 2019Observed: 9.23 ft at 11:00AM Apr 19, 2019Observed: 9.23 ft at 11:15AM Apr 19, 2019Observed: 9.23 ft at 11:30AM Apr 19, 2019Observed: 9.22 ft at 11:45AM Apr 19, 2019Observed: 9.23 ft at 12:00PM Apr 19, 2019Observed: 9.22 ft at 12:15PM Apr 19, 2019Observed: 9.23 ft at 12:30PM Apr 19, 2019Observed: 9.23 ft at 12:45PM Apr 19, 2019Observed: 9.21 ft at 1:00PM Apr 19, 2019Observed: 9.2 ft at 1:15PM Apr 19, 2019Observed: 9.2 ft at 1:30PM Apr 19, 2019Observed: 9.2 ft at 1:45PM Apr 19, 2019Observed: 9.2 ft at 2:00PM Apr 19, 2019Observed: 9.19 ft at 2:15PM Apr 19, 2019Observed: 9.19 ft at 2:30PM Apr 19, 2019Observed: 9.18 ft at 2:45PM Apr 19, 2019Observed: 9.18 ft at 3:00PM Apr 19, 2019Observed: 9.18 ft at 3:15PM Apr 19, 2019Observed: 9.17 ft at 3:30PM Apr 19, 2019Observed: 9.17 ft at 3:45PM Apr 19, 2019Observed: 9.16 ft at 4:00PM Apr 19, 2019Observed: 9.17 ft at 4:15PM Apr 19, 2019Observed: 9.16 ft at 4:30PM Apr 19, 2019Observed: 9.15 ft at 4:45PM Apr 19, 2019Observed: 9.14 ft at 5:00PM Apr 19, 2019Observed: 9.14 ft at 5:15PM Apr 19, 2019Observed: 9.13 ft at 5:30PM Apr 19, 2019Observed: 9.14 ft at 5:45PM Apr 19, 2019Observed: 9.13 ft at 6:00PM Apr 19, 2019Observed: 9.13 ft at 6:15PM Apr 19, 2019Observed: 9.12 ft at 6:30PM Apr 19, 2019Observed: 9.12 ft at 6:45PM Apr 19, 2019Observed: 9.12 ft at 7:00PM Apr 19, 2019Observed: 9.12 ft at 7:15PM Apr 19, 2019Observed: 9.12 ft at 7:30PM Apr 19, 2019Observed: 9.12 ft at 7:45PM Apr 19, 2019Observed: 9.12 ft at 8:00PM Apr 19, 2019Observed: 9.12 ft at 8:15PM Apr 19, 2019Observed: 9.11 ft at 8:30PM Apr 19, 2019Observed: 9.11 ft at 8:45PM Apr 19, 2019Observed: 9.11 ft at 9:00PM Apr 19, 2019Observed: 9.11 ft at 9:15PM Apr 19, 2019Observed: 9.11 ft at 9:30PM Apr 19, 2019Observed: 9.1 ft at 9:45PM Apr 19, 2019Observed: 9.1 ft at 10:00PM Apr 19, 2019Observed: 9.1 ft at 10:15PM Apr 19, 2019Observed: 9.1 ft at 10:30PM Apr 19, 2019Observed: 9.09 ft at 10:45PM Apr 19, 2019Observed: 9.1 ft at 11:00PM Apr 19, 2019Observed: 9.09 ft at 11:15PM Apr 19, 2019Observed: 9.09 ft at 11:30PM Apr 19, 2019Observed: 9.09 ft at 11:45PM Apr 19, 2019Observed: 9.11 ft at 12:00AM Apr 20, 2019Observed: 9.09 ft at 12:15AM Apr 20, 2019Observed: 9.08 ft at 12:30AM Apr 20, 2019Observed: 9.14 ft at 12:45AM Apr 20, 2019Observed: 9.08 ft at 1:00AM Apr 20, 2019Observed: 9.07 ft at 1:15AM Apr 20, 2019Observed: 9.07 ft at 1:30AM Apr 20, 2019Observed: 9.07 ft at 1:45AM Apr 20, 2019Observed: 9.06 ft at 2:00AM Apr 20, 2019Observed: 9.06 ft at 2:15AM Apr 20, 2019Observed: 9.06 ft at 2:30AM Apr 20, 2019Observed: 9.06 ft at 2:45AM Apr 20, 2019Observed: 9.05 ft at 3:00AM Apr 20, 2019Observed: 9.05 ft at 3:15AM Apr 20, 2019Observed: 9.05 ft at 3:30AM Apr 20, 2019Observed: 9.05 ft at 3:45AM Apr 20, 2019Observed: 9.04 ft at 4:00AM Apr 20, 2019Observed: 9.04 ft at 4:15AM Apr 20, 2019Observed: 9.04 ft at 4:30AM Apr 20, 2019Observed: 9.04 ft at 4:45AM Apr 20, 2019Observed: 9.03 ft at 5:00AM Apr 20, 2019Observed: 9.03 ft at 5:15AM Apr 20, 2019Observed: 9.03 ft at 5:30AM Apr 20, 2019Observed: 9.02 ft at 5:45AM Apr 20, 2019Observed: 9.02 ft at 6:00AM Apr 20, 2019Observed: 9.02 ft at 6:15AM Apr 20, 2019Observed: 9.02 ft at 6:30AM Apr 20, 2019Observed: 9.02 ft at 6:45AM Apr 20, 2019Observed: 9.01 ft at 7:00AM Apr 20, 2019Observed: 9.01 ft at 7:15AM Apr 20, 2019Observed: 9.02 ft at 7:30AM Apr 20, 2019Observed: 9.01 ft at 7:45AM Apr 20, 2019Observed: 9.02 ft at 8:00AM Apr 20, 2019Observed: 9.03 ft at 8:15AM Apr 20, 2019Observed: 9.03 ft at 8:30AM Apr 20, 2019Observed: 9.03 ft at 8:45AM Apr 20, 2019Observed: 9.03 ft at 9:00AM Apr 20, 2019Observed: 9.03 ft at 9:15AM Apr 20, 2019Observed: 9.02 ft at 9:30AM Apr 20, 2019Observed: 9.02 ft at 9:45AM Apr 20, 2019Observed: 9.02 ft at 10:00AM Apr 20, 2019Observed: 9.01 ft at 10:15AM Apr 20, 2019Observed: 9.01 ft at 10:30AM Apr 20, 2019Observed: 9.01 ft at 10:45AM Apr 20, 2019Observed: 9.01 ft at 11:00AM Apr 20, 2019Observed: 9.01 ft at 11:15AM Apr 20, 2019Observed: 9 ft at 11:30AM Apr 20, 2019Observed: 9 ft at 11:45AM Apr 20, 2019Observed: 9 ft at 12:00PM Apr 20, 2019Observed: 9 ft at 12:15PM Apr 20, 2019Observed: 9 ft at 12:30PM Apr 20, 2019Observed: 9 ft at 12:45PM Apr 20, 2019Observed: 8.99 ft at 1:00PM Apr 20, 2019Observed: 8.99 ft at 1:15PM Apr 20, 2019Observed: 8.99 ft at 1:30PM Apr 20, 2019Observed: 8.99 ft at 1:45PM Apr 20, 2019Observed: 8.99 ft at 2:00PM Apr 20, 2019Observed: 8.98 ft at 2:15PM Apr 20, 2019Observed: 8.98 ft at 2:30PM Apr 20, 2019Observed: 8.98 ft at 2:45PM Apr 20, 2019Observed: 8.98 ft at 3:00PM Apr 20, 2019Observed: 8.97 ft at 3:15PM Apr 20, 2019Observed: 8.97 ft at 3:30PM Apr 20, 2019Observed: 8.97 ft at 3:45PM Apr 20, 2019Observed: 8.97 ft at 4:00PM Apr 20, 2019Observed: 8.96 ft at 4:15PM Apr 20, 2019Observed: 8.96 ft at 4:30PM Apr 20, 2019Observed: 8.96 ft at 4:45PM Apr 20, 2019Observed: 8.96 ft at 5:00PM Apr 20, 2019Observed: 8.96 ft at 5:15PM Apr 20, 2019Observed: 8.95 ft at 5:30PM Apr 20, 2019Observed: 8.95 ft at 5:45PM Apr 20, 2019Observed: 8.95 ft at 6:00PM Apr 20, 2019Observed: 8.95 ft at 6:15PM Apr 20, 2019Observed: 8.95 ft at 6:30PM Apr 20, 2019Observed: 8.94 ft at 6:45PM Apr 20, 2019Observed: 8.95 ft at 7:00PM Apr 20, 2019Observed: 8.95 ft at 7:15PM Apr 20, 2019Observed: 8.94 ft at 7:30PM Apr 20, 2019Observed: 8.94 ft at 7:45PM Apr 20, 2019Observed: 8.94 ft at 8:00PM Apr 20, 2019Observed: 8.93 ft at 8:15PM Apr 20, 2019Observed: 8.93 ft at 8:30PM Apr 20, 2019Observed: 8.93 ft at 8:45PM Apr 20, 2019Observed: 8.93 ft at 9:00PM Apr 20, 2019Observed: 8.93 ft at 9:15PM Apr 20, 2019Observed: 8.92 ft at 9:30PM Apr 20, 2019Observed: 8.92 ft at 9:45PM Apr 20, 2019Observed: 8.92 ft at 10:00PM Apr 20, 2019Observed: 8.92 ft at 10:15PM Apr 20, 2019Observed: 8.92 ft at 10:30PM Apr 20, 2019Observed: 8.91 ft at 10:45PM Apr 20, 2019Observed: 8.91 ft at 11:00PM Apr 20, 2019Observed: 8.91 ft at 11:15PM Apr 20, 2019Observed: 8.91 ft at 11:30PM Apr 20, 2019Observed: 8.91 ft at 11:45PM Apr 20, 2019Observed: 8.9 ft at 12:00AM Apr 21, 2019Observed: 8.9 ft at 12:15AM Apr 21, 2019Observed: 8.9 ft at 12:30AM Apr 21, 2019Observed: 8.89 ft at 12:45AM Apr 21, 2019Observed: 8.89 ft at 1:00AM Apr 21, 2019Observed: 8.89 ft at 1:15AM Apr 21, 2019Observed: 8.89 ft at 1:30AM Apr 21, 2019Observed: 8.89 ft at 1:45AM Apr 21, 2019Observed: 8.88 ft at 2:00AM Apr 21, 2019Observed: 8.88 ft at 2:15AM Apr 21, 2019Observed: 8.88 ft at 2:30AM Apr 21, 2019Observed: 8.88 ft at 2:45AM Apr 21, 2019Observed: 8.87 ft at 3:00AM Apr 21, 2019Observed: 8.87 ft at 3:15AM Apr 21, 2019Observed: 8.88 ft at 3:30AM Apr 21, 2019Observed: 8.87 ft at 3:45AM Apr 21, 2019Observed: 8.87 ft at 4:00AM Apr 21, 2019Observed: 8.87 ft at 4:15AM Apr 21, 2019Observed: 8.87 ft at 4:30AM Apr 21, 2019Observed: 8.87 ft at 4:45AM Apr 21, 2019Observed: 8.87 ft at 5:00AM Apr 21, 2019Observed: 8.86 ft at 5:15AM Apr 21, 2019Observed: 8.86 ft at 5:30AM Apr 21, 2019Observed: 8.86 ft at 5:45AM Apr 21, 2019Observed: 8.86 ft at 6:00AM Apr 21, 2019Observed: 8.86 ft at 6:15AM Apr 21, 2019Observed: 8.85 ft at 6:30AM Apr 21, 2019Observed: 8.85 ft at 6:45AM Apr 21, 2019Observed: 8.85 ft at 7:00AM Apr 21, 2019Observed: 8.85 ft at 7:15AM Apr 21, 2019Observed: 8.85 ft at 7:30AM Apr 21, 2019Observed: 8.84 ft at 7:45AM Apr 21, 2019Observed: 8.83 ft at 8:00AM Apr 21, 2019Observed: 8.83 ft at 8:15AM Apr 21, 2019Observed: 8.83 ft at 8:30AM Apr 21, 2019Observed: 8.82 ft at 8:45AM Apr 21, 2019Observed: 8.83 ft at 9:00AM Apr 21, 2019Observed: 8.82 ft at 9:15AM Apr 21, 2019Observed: 8.82 ft at 9:30AM Apr 21, 2019Observed: 8.82 ft at 9:45AM Apr 21, 2019Observed: 8.82 ft at 10:00AM Apr 21, 2019Observed: 8.82 ft at 10:15AM Apr 21, 2019Observed: 8.82 ft at 10:30AM Apr 21, 2019Observed: 8.82 ft at 10:45AM Apr 21, 2019Observed: 8.85 ft at 11:00AM Apr 21, 2019Observed: 8.85 ft at 11:15AM Apr 21, 2019Observed: 8.85 ft at 11:30AM Apr 21, 2019Observed: 8.85 ft at 11:45AM Apr 21, 2019Observed: 8.84 ft at 12:00PM Apr 21, 2019Observed: 8.84 ft at 12:15PM Apr 21, 2019Observed: 8.84 ft at 12:30PM Apr 21, 2019Observed: 8.84 ft at 12:45PM Apr 21, 2019Observed: 8.84 ft at 1:00PM Apr 21, 2019Observed: 8.84 ft at 1:15PM Apr 21, 2019Observed: 8.84 ft at 1:30PM Apr 21, 2019Observed: 8.84 ft at 1:45PM Apr 21, 2019Observed: 8.84 ft at 2:00PM Apr 21, 2019Observed: 8.84 ft at 2:15PM Apr 21, 2019Observed: 8.83 ft at 2:30PM Apr 21, 2019Observed: 8.83 ft at 2:45PM Apr 21, 2019Observed: 8.83 ft at 3:00PM Apr 21, 2019Observed: 8.83 ft at 3:15PM Apr 21, 2019Observed: 8.83 ft at 3:30PM Apr 21, 2019Observed: 8.83 ft at 3:45PM Apr 21, 2019Observed: 8.83 ft at 4:00PM Apr 21, 2019Observed: 8.83 ft at 4:15PM Apr 21, 2019Observed: 8.83 ft at 4:30PM Apr 21, 2019Observed: 8.82 ft at 4:45PM Apr 21, 2019Observed: 8.83 ft at 5:00PM Apr 21, 2019Observed: 8.83 ft at 5:15PM Apr 21, 2019Observed: 8.83 ft at 5:30PM Apr 21, 2019Observed: 8.83 ft at 5:45PM Apr 21, 2019Observed: 8.82 ft at 6:00PM Apr 21, 2019Observed: 8.82 ft at 6:15PM Apr 21, 2019Observed: 8.82 ft at 6:30PM Apr 21, 2019Observed: 8.82 ft at 6:45PM Apr 21, 2019Observed: 8.82 ft at 7:00PM Apr 21, 2019Observed: 8.82 ft at 7:15PM Apr 21, 2019Observed: 8.82 ft at 7:30PM Apr 21, 2019Observed: 8.82 ft at 7:45PM Apr 21, 2019Observed: 8.82 ft at 8:00PM Apr 21, 2019Observed: 8.81 ft at 8:15PM Apr 21, 2019Observed: 8.81 ft at 8:30PM Apr 21, 2019Observed: 8.81 ft at 8:45PM Apr 21, 2019Observed: 8.8 ft at 9:00PM Apr 21, 2019Observed: 8.8 ft at 9:15PM Apr 21, 2019Observed: 8.8 ft at 9:30PM Apr 21, 2019Observed: 8.8 ft at 9:45PM Apr 21, 2019Observed: 8.8 ft at 10:00PM Apr 21, 2019Observed: 8.79 ft at 10:15PM Apr 21, 2019Observed: 8.79 ft at 10:30PM Apr 21, 2019Observed: 8.79 ft at 10:45PM Apr 21, 2019Observed: 8.79 ft at 11:00PM Apr 21, 2019Observed: 8.79 ft at 11:15PM Apr 21, 2019Observed: 8.78 ft at 11:30PM Apr 21, 2019Observed: 8.78 ft at 11:45PM Apr 21, 2019Observed: 8.78 ft at 12:00AM Apr 22, 2019Observed: 8.78 ft at 12:15AM Apr 22, 2019Observed: 8.78 ft at 12:30AM Apr 22, 2019Observed: 8.78 ft at 12:45AM Apr 22, 2019Observed: 8.77 ft at 1:00AM Apr 22, 2019Observed: 8.77 ft at 1:15AM Apr 22, 2019Observed: 8.77 ft at 1:30AM Apr 22, 2019Observed: 8.77 ft at 1:45AM Apr 22, 2019Observed: 8.77 ft at 2:00AM Apr 22, 2019Observed: 8.77 ft at 2:15AM Apr 22, 2019Observed: 8.77 ft at 2:30AM Apr 22, 2019Observed: 8.77 ft at 2:45AM Apr 22, 2019Observed: 8.78 ft at 3:00AM Apr 22, 2019Observed: 8.78 ft at 3:15AM Apr 22, 2019Observed: 8.77 ft at 3:30AM Apr 22, 2019Observed: 8.77 ft at 3:45AM Apr 22, 2019Observed: 8.77 ft at 4:00AM Apr 22, 2019Observed: 8.76 ft at 4:15AM Apr 22, 2019Observed: 8.76 ft at 4:30AM Apr 22, 2019USGS--Water Resources of the United StatesLMTI2(plotting HGIRG) Graph Created (5:09AM Apr 22, 2019)ObservedLatest observed value: 8.76 ft at 4:30 AM CDT 22-Apr-2019.
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About this graph
Tabular Data (UTC)
Tabular Data (CDT)
XML Data
RSS Files
Datum: NAVD88
Metadata
NOTE: Graphical forecasts are not available for the Sawmill Creek (IL) near Lemont. During times of high water, forecast crest information can be found in the text products.
Return to Area Map
Downstream Gauge Downstream Gauge - near Lemont
Flood Categories (in feet)
Not Available

Historic Crests
(1) 17.53 ft on 07/18/1996
(2) 14.64 ft on 02/21/1997
(3) 13.97 ft on 05/12/2002
(4) 13.75 ft on 08/04/1998
(5) 12.87 ft on 05/28/2000
Show More Historic Crests

(P): Preliminary values subject to further review.

Recent Crests
(1) 12.42 ft on 01/13/2005
(2) 12.74 ft on 08/28/2004
(3) 11.90 ft on 05/09/2003
(4) 13.97 ft on 05/12/2002
(5) 12.26 ft on 02/09/2001
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: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.
About This Location Collapse

Latitude: 41.707778° N, Longitude: 87.962500° W, Horizontal Datum: NAD83/WGS84

River Stage
Reference Frame
Gauge Height Flood Stage Uses
NWS stage 0 ft Not Available 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 629.71 Not Available Survey grade GPS equipment, FEMA flood plain maps, newer USGS topographic maps
NGVD 29 630.0 Not Available 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:

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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
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(815) 834-1435
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Page last modified: 4-Mar-2019 11:29 PM
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