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Hydrograph River at a Glance Download
Chagrin River at Willoughby Stage (ft)Flow (kcfs)Highest Observation: 3.72 ft at 10:30AM Jul 13, 2020Highest Observation: 3.72 ft at 10:45AM Jul 13, 2020Highest Observation: 3.72 ft at 11:00AM Jul 13, 2020Observed: 3.71 ft at 11:15AM Jul 13, 2020Observed: 3.71 ft at 11:30AM Jul 13, 2020Observed: 3.71 ft at 11:45AM Jul 13, 2020Observed: 3.7 ft at 12:00PM Jul 13, 2020Observed: 3.7 ft at 12:15PM Jul 13, 2020Observed: 3.7 ft at 12:30PM Jul 13, 2020Observed: 3.7 ft at 12:45PM Jul 13, 2020Observed: 3.7 ft at 1:00PM Jul 13, 2020Observed: 3.69 ft at 1:15PM Jul 13, 2020Observed: 3.69 ft at 1:30PM Jul 13, 2020Observed: 3.68 ft at 1:45PM Jul 13, 2020Observed: 3.69 ft at 2:00PM Jul 13, 2020Observed: 3.69 ft at 2:15PM Jul 13, 2020Observed: 3.69 ft at 2:30PM Jul 13, 2020Observed: 3.68 ft at 2:45PM Jul 13, 2020Observed: 3.68 ft at 3:00PM Jul 13, 2020Observed: 3.68 ft at 3:15PM Jul 13, 2020Observed: 3.68 ft at 3:30PM Jul 13, 2020Observed: 3.68 ft at 3:45PM Jul 13, 2020Observed: 3.67 ft at 4:00PM Jul 13, 2020Observed: 3.67 ft at 4:15PM Jul 13, 2020Observed: 3.68 ft at 4:30PM Jul 13, 2020Observed: 3.67 ft at 4:45PM Jul 13, 2020Observed: 3.66 ft at 5:00PM Jul 13, 2020Observed: 3.67 ft at 5:15PM Jul 13, 2020Observed: 3.67 ft at 5:30PM Jul 13, 2020Observed: 3.66 ft at 5:45PM Jul 13, 2020Observed: 3.66 ft at 6:00PM Jul 13, 2020Observed: 3.66 ft at 6:15PM Jul 13, 2020Observed: 3.66 ft at 6:30PM Jul 13, 2020Observed: 3.65 ft at 6:45PM Jul 13, 2020Observed: 3.64 ft at 7:00PM Jul 13, 2020Observed: 3.65 ft at 7:15PM Jul 13, 2020Observed: 3.64 ft at 7:30PM Jul 13, 2020Observed: 3.64 ft at 7:45PM Jul 13, 2020Observed: 3.64 ft at 8:00PM Jul 13, 2020Observed: 3.64 ft at 8:15PM Jul 13, 2020Observed: 3.63 ft at 8:30PM Jul 13, 2020Observed: 3.63 ft at 8:45PM Jul 13, 2020Observed: 3.63 ft at 9:00PM Jul 13, 2020Observed: 3.63 ft at 9:15PM Jul 13, 2020Observed: 3.63 ft at 9:30PM Jul 13, 2020Observed: 3.63 ft at 9:45PM Jul 13, 2020Observed: 3.63 ft at 10:00PM Jul 13, 2020Observed: 3.62 ft at 10:15PM Jul 13, 2020Observed: 3.62 ft at 10:30PM Jul 13, 2020Observed: 3.62 ft at 10:45PM Jul 13, 2020Observed: 3.62 ft at 11:00PM Jul 13, 2020Observed: 3.62 ft at 11:15PM Jul 13, 2020Observed: 3.62 ft at 11:30PM Jul 13, 2020Observed: 3.61 ft at 11:45PM Jul 13, 2020Observed: 3.61 ft at 12:00AM Jul 14, 2020Observed: 3.61 ft at 12:15AM Jul 14, 2020Observed: 3.61 ft at 12:30AM Jul 14, 2020Observed: 3.61 ft at 12:45AM Jul 14, 2020Observed: 3.6 ft at 1:00AM Jul 14, 2020Observed: 3.6 ft at 1:15AM Jul 14, 2020Observed: 3.61 ft at 1:30AM Jul 14, 2020Observed: 3.6 ft at 1:45AM Jul 14, 2020Observed: 3.6 ft at 2:00AM Jul 14, 2020Observed: 3.6 ft at 2:15AM Jul 14, 2020Observed: 3.6 ft at 2:30AM Jul 14, 2020Observed: 3.6 ft at 2:45AM Jul 14, 2020Observed: 3.59 ft at 3:00AM Jul 14, 2020Observed: 3.59 ft at 3:15AM Jul 14, 2020Observed: 3.59 ft at 3:30AM Jul 14, 2020Observed: 3.59 ft at 3:45AM Jul 14, 2020Observed: 3.59 ft at 4:00AM Jul 14, 2020Observed: 3.59 ft at 4:15AM Jul 14, 2020Observed: 3.59 ft at 4:30AM Jul 14, 2020Observed: 3.59 ft at 4:45AM Jul 14, 2020Observed: 3.58 ft at 5:00AM Jul 14, 2020Observed: 3.58 ft at 5:15AM Jul 14, 2020Observed: 3.58 ft at 5:30AM Jul 14, 2020Observed: 3.58 ft at 5:45AM Jul 14, 2020Observed: 3.58 ft at 6:00AM Jul 14, 2020Observed: 3.58 ft at 6:15AM Jul 14, 2020Observed: 3.58 ft at 6:30AM Jul 14, 2020Observed: 3.58 ft at 6:45AM Jul 14, 2020Observed: 3.58 ft at 7:00AM Jul 14, 2020Observed: 3.58 ft at 7:15AM Jul 14, 2020Observed: 3.58 ft at 7:30AM Jul 14, 2020Observed: 3.58 ft at 7:45AM Jul 14, 2020Observed: 3.57 ft at 8:00AM Jul 14, 2020Observed: 3.57 ft at 8:15AM Jul 14, 2020Observed: 3.57 ft at 8:30AM Jul 14, 2020Observed: 3.57 ft at 8:45AM Jul 14, 2020Observed: 3.57 ft at 9:00AM Jul 14, 2020Observed: 3.57 ft at 9:15AM Jul 14, 2020Observed: 3.57 ft at 9:30AM Jul 14, 2020Observed: 3.57 ft at 9:45AM Jul 14, 2020Observed: 3.56 ft at 10:00AM Jul 14, 2020Observed: 3.57 ft at 10:15AM Jul 14, 2020Observed: 3.57 ft at 10:30AM Jul 14, 2020Observed: 3.56 ft at 10:45AM Jul 14, 2020Observed: 3.56 ft at 11:00AM Jul 14, 2020Observed: 3.56 ft at 11:15AM Jul 14, 2020Observed: 3.55 ft at 11:30AM Jul 14, 2020Observed: 3.56 ft at 11:45AM Jul 14, 2020Observed: 3.56 ft at 12:00PM Jul 14, 2020Observed: 3.55 ft at 12:15PM Jul 14, 2020Observed: 3.55 ft at 12:30PM Jul 14, 2020Observed: 3.56 ft at 12:45PM Jul 14, 2020Observed: 3.55 ft at 1:00PM Jul 14, 2020Observed: 3.56 ft at 1:15PM Jul 14, 2020Observed: 3.55 ft at 1:30PM Jul 14, 2020Observed: 3.55 ft at 1:45PM Jul 14, 2020Observed: 3.55 ft at 2:00PM Jul 14, 2020Observed: 3.54 ft at 2:15PM Jul 14, 2020Observed: 3.54 ft at 2:30PM Jul 14, 2020Observed: 3.54 ft at 2:45PM Jul 14, 2020Observed: 3.54 ft at 3:00PM Jul 14, 2020Observed: 3.54 ft at 3:15PM Jul 14, 2020Observed: 3.53 ft at 3:30PM Jul 14, 2020Observed: 3.54 ft at 3:45PM Jul 14, 2020Observed: 3.53 ft at 4:00PM Jul 14, 2020Observed: 3.53 ft at 4:15PM Jul 14, 2020Observed: 3.53 ft at 4:30PM Jul 14, 2020Observed: 3.53 ft at 4:45PM Jul 14, 2020Observed: 3.53 ft at 5:00PM Jul 14, 2020Observed: 3.52 ft at 5:15PM Jul 14, 2020Observed: 3.52 ft at 5:30PM Jul 14, 2020Observed: 3.52 ft at 5:45PM Jul 14, 2020Observed: 3.52 ft at 6:00PM Jul 14, 2020Observed: 3.53 ft at 6:15PM Jul 14, 2020Observed: 3.52 ft at 6:30PM Jul 14, 2020Observed: 3.52 ft at 6:45PM Jul 14, 2020Observed: 3.52 ft at 7:00PM Jul 14, 2020Observed: 3.52 ft at 7:15PM Jul 14, 2020Observed: 3.52 ft at 7:30PM Jul 14, 2020Observed: 3.52 ft at 7:45PM Jul 14, 2020Observed: 3.51 ft at 8:00PM Jul 14, 2020Observed: 3.51 ft at 8:15PM Jul 14, 2020Observed: 3.51 ft at 8:30PM Jul 14, 2020Observed: 3.51 ft at 8:45PM Jul 14, 2020Observed: 3.51 ft at 9:00PM Jul 14, 2020Observed: 3.51 ft at 9:15PM Jul 14, 2020Observed: 3.51 ft at 9:30PM Jul 14, 2020Observed: 3.51 ft at 9:45PM Jul 14, 2020Observed: 3.51 ft at 10:00PM Jul 14, 2020Observed: 3.5 ft at 10:15PM Jul 14, 2020Observed: 3.51 ft at 10:30PM Jul 14, 2020Observed: 3.5 ft at 10:45PM Jul 14, 2020Observed: 3.5 ft at 11:00PM Jul 14, 2020Observed: 3.5 ft at 11:15PM Jul 14, 2020Observed: 3.5 ft at 11:30PM Jul 14, 2020Observed: 3.5 ft at 11:45PM Jul 14, 2020Observed: 3.5 ft at 12:00AM Jul 15, 2020Observed: 3.5 ft at 12:15AM Jul 15, 2020Observed: 3.5 ft at 12:30AM Jul 15, 2020Observed: 3.5 ft at 12:45AM Jul 15, 2020Observed: 3.5 ft at 1:00AM Jul 15, 2020Observed: 3.5 ft at 1:15AM Jul 15, 2020Observed: 3.5 ft at 1:30AM Jul 15, 2020Observed: 3.5 ft at 1:45AM Jul 15, 2020Observed: 3.5 ft at 2:00AM Jul 15, 2020Observed: 3.49 ft at 2:15AM Jul 15, 2020Observed: 3.49 ft at 2:30AM Jul 15, 2020Observed: 3.49 ft at 2:45AM Jul 15, 2020Observed: 3.49 ft at 3:00AM Jul 15, 2020Observed: 3.49 ft at 3:15AM Jul 15, 2020Observed: 3.49 ft at 3:30AM Jul 15, 2020Observed: 3.49 ft at 3:45AM Jul 15, 2020Observed: 3.49 ft at 4:00AM Jul 15, 2020Observed: 3.49 ft at 4:15AM Jul 15, 2020Observed: 3.48 ft at 4:30AM Jul 15, 2020Observed: 3.49 ft at 4:45AM Jul 15, 2020Observed: 3.49 ft at 5:00AM Jul 15, 2020Observed: 3.49 ft at 5:15AM Jul 15, 2020Observed: 3.48 ft at 5:30AM Jul 15, 2020Observed: 3.48 ft at 5:45AM Jul 15, 2020Observed: 3.48 ft at 6:00AM Jul 15, 2020Observed: 3.48 ft at 6:15AM Jul 15, 2020Observed: 3.48 ft at 6:30AM Jul 15, 2020Observed: 3.48 ft at 6:45AM Jul 15, 2020Observed: 3.48 ft at 7:00AM Jul 15, 2020Observed: 3.48 ft at 7:15AM Jul 15, 2020Observed: 3.48 ft at 7:30AM Jul 15, 2020Observed: 3.48 ft at 7:45AM Jul 15, 2020Observed: 3.48 ft at 8:00AM Jul 15, 2020Observed: 3.47 ft at 8:15AM Jul 15, 2020Observed: 3.47 ft at 8:30AM Jul 15, 2020Observed: 3.47 ft at 8:45AM Jul 15, 2020Observed: 3.47 ft at 9:00AM Jul 15, 2020Observed: 3.47 ft at 9:15AM Jul 15, 2020Observed: 3.47 ft at 9:30AM Jul 15, 2020Observed: 3.47 ft at 9:45AM Jul 15, 2020Observed: 3.47 ft at 10:00AM Jul 15, 2020Observed: 3.47 ft at 10:15AM Jul 15, 2020Observed: 3.47 ft at 10:30AM Jul 15, 2020Observed: 3.47 ft at 10:45AM Jul 15, 2020Observed: 3.47 ft at 11:00AM Jul 15, 2020Observed: 3.47 ft at 11:15AM Jul 15, 2020Observed: 3.46 ft at 11:30AM Jul 15, 2020Observed: 3.47 ft at 11:45AM Jul 15, 2020Observed: 3.46 ft at 12:00PM Jul 15, 2020Observed: 3.47 ft at 12:15PM Jul 15, 2020Observed: 3.46 ft at 12:30PM Jul 15, 2020Observed: 3.46 ft at 12:45PM Jul 15, 2020Observed: 3.46 ft at 1:00PM Jul 15, 2020Observed: 3.46 ft at 1:15PM Jul 15, 2020Observed: 3.46 ft at 1:30PM Jul 15, 2020Observed: 3.46 ft at 1:45PM Jul 15, 2020Observed: 3.46 ft at 2:00PM Jul 15, 2020Observed: 3.46 ft at 2:15PM Jul 15, 2020Observed: 3.46 ft at 2:30PM Jul 15, 2020Observed: 3.46 ft at 2:45PM Jul 15, 2020Observed: 3.46 ft at 3:00PM Jul 15, 2020Observed: 3.46 ft at 3:15PM Jul 15, 2020Observed: 3.46 ft at 3:30PM Jul 15, 2020Observed: 3.45 ft at 3:45PM Jul 15, 2020Observed: 3.46 ft at 4:00PM Jul 15, 2020Observed: 3.46 ft at 4:15PM Jul 15, 2020Observed: 3.45 ft at 4:30PM Jul 15, 2020Observed: 3.45 ft at 4:45PM Jul 15, 2020Observed: 3.45 ft at 5:00PM Jul 15, 2020Observed: 3.45 ft at 5:15PM Jul 15, 2020Observed: 3.45 ft at 5:30PM Jul 15, 2020Observed: 3.45 ft at 5:45PM Jul 15, 2020Observed: 3.45 ft at 6:00PM Jul 15, 2020Observed: 3.45 ft at 6:15PM Jul 15, 2020Observed: 3.45 ft at 6:30PM Jul 15, 2020Observed: 3.45 ft at 6:45PM Jul 15, 2020Observed: 3.44 ft at 7:00PM Jul 15, 2020Observed: 3.45 ft at 7:15PM Jul 15, 2020Observed: 3.44 ft at 7:30PM Jul 15, 2020Observed: 3.44 ft at 7:45PM Jul 15, 2020Observed: 3.44 ft at 8:00PM Jul 15, 2020Observed: 3.44 ft at 8:15PM Jul 15, 2020Observed: 3.44 ft at 8:30PM Jul 15, 2020Observed: 3.44 ft at 8:45PM Jul 15, 2020Observed: 3.44 ft at 9:00PM Jul 15, 2020Observed: 3.44 ft at 9:15PM Jul 15, 2020Observed: 3.44 ft at 9:30PM Jul 15, 2020Observed: 3.44 ft at 9:45PM Jul 15, 2020Observed: 3.44 ft at 10:00PM Jul 15, 2020Observed: 3.44 ft at 10:15PM Jul 15, 2020Observed: 3.44 ft at 10:30PM Jul 15, 2020Observed: 3.44 ft at 10:45PM Jul 15, 2020Observed: 3.43 ft at 11:00PM Jul 15, 2020Observed: 3.44 ft at 11:15PM Jul 15, 2020Observed: 3.44 ft at 11:30PM Jul 15, 2020Observed: 3.43 ft at 11:45PM Jul 15, 2020Observed: 3.43 ft at 12:00AM Jul 16, 2020Observed: 3.43 ft at 12:15AM Jul 16, 2020Observed: 3.43 ft at 12:30AM Jul 16, 2020Observed: 3.43 ft at 12:45AM Jul 16, 2020Observed: 3.43 ft at 1:00AM Jul 16, 2020Observed: 3.43 ft at 1:15AM Jul 16, 2020Observed: 3.44 ft at 1:30AM Jul 16, 2020Observed: 3.43 ft at 1:45AM Jul 16, 2020Observed: 3.43 ft at 2:00AM Jul 16, 2020Observed: 3.43 ft at 2:15AM Jul 16, 2020Observed: 3.43 ft at 2:30AM Jul 16, 2020Observed: 3.43 ft at 2:45AM Jul 16, 2020Observed: 3.43 ft at 3:00AM Jul 16, 2020Observed: 3.43 ft at 3:15AM Jul 16, 2020Observed: 3.43 ft at 3:30AM Jul 16, 2020Observed: 3.43 ft at 3:45AM Jul 16, 2020Observed: 3.43 ft at 4:00AM Jul 16, 2020Observed: 3.43 ft at 4:15AM Jul 16, 2020Observed: 3.43 ft at 4:30AM Jul 16, 2020Observed: 3.43 ft at 4:45AM Jul 16, 2020Observed: 3.42 ft at 5:00AM Jul 16, 2020Observed: 3.43 ft at 5:15AM Jul 16, 2020Observed: 3.43 ft at 5:30AM Jul 16, 2020Observed: 3.43 ft at 5:45AM Jul 16, 2020Observed: 3.42 ft at 6:00AM Jul 16, 2020Observed: 3.43 ft at 6:15AM Jul 16, 2020Observed: 3.42 ft at 6:30AM Jul 16, 2020Observed: 3.42 ft at 6:45AM Jul 16, 2020Observed: 3.42 ft at 7:00AM Jul 16, 2020Observed: 3.42 ft at 7:15AM Jul 16, 2020Observed: 3.42 ft at 7:30AM Jul 16, 2020Observed: 3.42 ft at 7:45AM Jul 16, 2020Observed: 3.42 ft at 8:00AM Jul 16, 2020Observed: 3.42 ft at 8:15AM Jul 16, 2020Observed: 3.42 ft at 8:30AM Jul 16, 2020Observed: 3.42 ft at 8:45AM Jul 16, 2020Observed: 3.42 ft at 9:00AM Jul 16, 2020Observed: 3.42 ft at 9:15AM Jul 16, 2020USGS--Water Resources of the United StatesWBYO1(plotting HGIRG) Graph Created (10:17AM Jul 16, 2020)ObservedLatest observed value: 3.42 ft at 9:15 AM EDT 16-Jul-2020. Flood Stage is 12 ft
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About this graph
Tabular Data (UTC)
Tabular Data (EDT)
XML Data
RSS Files
Datum: Not Available
Metadata
NOTE: Forecasts for the Chagrin River at Willoughby are issued as needed during times of high water, but are not routinely available.
Return to Area Map
Flood Categories (in feet)
Major Flood Stage: 16
Moderate Flood Stage: 14
Flood Stage: 12
Action Stage: 9
Low Stage (in feet): -9999

Historic Crests
(1) 17.95 ft on 03/22/1948
(2) 17.14 ft on 05/26/1989
(3) 16.83 ft on 05/19/1969
(4) 16.73 ft on 01/21/1959
(5) 16.57 ft on 02/28/2011
(6) 15.33 ft on 03/05/1964
(7) 15.22 ft on 10/15/1954
(8) 14.77 ft on 07/28/2006
(9) 14.74 ft on 05/20/1957
(10) 14.41 ft on 08/13/1994
Show More Historic Crests

(P): Preliminary values subject to further review.

Recent Crests
(1) 13.04 ft on 03/29/2020 (P)
(2) 12.66 ft on 04/16/2018
(3) 16.57 ft on 02/28/2011
(4) 10.31 ft on 02/11/2009
(5) 14.04 ft on 02/06/2008
(6) 12.04 ft on 03/15/2007 (P)
(7) 13.04 ft on 01/05/2007
(8) 11.66 ft on 12/01/2006
(9) 14.77 ft on 07/28/2006
(10) 12.11 ft on 01/12/2005
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
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
22 500 year flood level.
18 100 year flood level. Major flooding from Willoughby Hills to Eastlake. Considerable backwtaer flooding along all tributaries.
16.5 The river gage is flooded. Major flooding will affect low lying property near the river.
16 Significant flooding in Lake County. In Eastlake areas like Riverside Drive, Willoughby Hills along Dodd Road, Daniels Park in Willoughby, Chagrin River Road, and several other secondary roads along the Chagrin River. Severe flooding occurs along Trailard, Milann, and Chagrin Drives. Flood waters encroach on North Riverview Drive in Eastlake.
15 Flood waters threaten properties along Dodd Road in Willoughby Hills. Properties on Riverside Drive impacted in Eastlake.
14 Property flooded in Trailard, Milann, and Chagrin Drives in Waite Hill. Riverside Drive and Boulevard in Eastlake cut off.
13 Flooding is possible along the northern section of Trailard, Milann, and Chagrin Drives in Waite Hill. Dodd Road inundated near Eagle Road.
12 Some secondary roads near the Chagrin River flood.
11 Lowland flooding occurs in Daniels Park in Willoughby and in the City of Eastlake.
About This Location Collapse

Latitude: 41.630881° N, Longitude: 81.403450° W, Horizontal Datum: NAD83/WGS84

River Stage
Reference Frame
Gauge Height Flood Stage Uses
NWS stage 0 ft 12 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 583.02 694.02 Survey grade GPS equipment, FEMA flood plain maps, newer USGS topographic maps
NGVD 29 Not Available 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:

Additional Information Collapse
Potential River Levels - Used to
Potential River Levels
Used to Estimate the Chance of Flooding and the Range of Possible River Levels
10 Day (HEFS) 7 Day (NAEFS) 7 Day (GEFS)
HEFS Ensemble NAEFS Ensemble GEFS Ensemble

Note: Use the official hydrograph at the top of this web page for river levels within the next 48 hours.

See the Product Description Document link for more details on the interpretation of the 3,7 day graphics.

Click individual graphics to enlarge.

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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
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Page last modified: 1-Mar-2019 12:35 AM
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