River Conditions
Illustrated map of Grand Lake St Marys

River stage

Willoughby, Chagrin River

River level
3.26 ft
Status
Below flood stage
7-day change
+0.03 ft
Recent high
4.94 ft
Recent low
3.18 ft

Last reported 2026-10-13 | NWS WBYO1

30-day change
-0.12 ft
Average
3.46 ft
Readings
122
Data span
122 days
Record crest
17.95 ft

In brief

The Chagrin River at Willoughby, OH read 3.26 ft on Oct 13, 2026, 5.74 ft below action stage. That is 0.12 ft lower than 30 days earlier.

Source: National Weather Service gauge WBYO1

River level timeline

2.83.13.43.74.1SEP 13SEP 18SEP 23SEP 28OCT 03OCT 08OCT 13HIGH 3.62LOW 3.223.24 ftLAST READING

Stage threshold profile

Action stage 9.00 ftMinor flooding 12.00 ftModerate flooding 14.00 ftMajor flooding 16.00 ft CURRENT 3.26 ft

Highest crests on record

RankCrestDate
1 17.95 ft 1948-03-22
2 17.14 ft 1989-05-26
3 16.83 ft 1969-05-19
4 16.73 ft 1959-01-21
5 16.57 ft 2011-02-28
6 15.33 ft 1964-03-05
7 15.22 ft 1954-10-15
8 14.77 ft 2006-07-28

Flood crests recorded at this gauge by the National Weather Service.

What happens at each level

  1. 11.00 ft

    Lowland flooding occurs in Daniels Park in Willoughby and in the City of Eastlake.

  2. 12.00 ft

    Some secondary roads near the Chagrin River flood.

  3. 13.00 ft

    Flooding is possible along the northern section of Trailard, Milann, and Chagrin Drives in Waite Hill. Dodd Road inundated near Eagle Road.

  4. 14.00 ft

    Property flooded in Trailard, Milann, and Chagrin Drives in Waite Hill. Riverside Drive and Boulevard in Eastlake cut off.

  5. 15.00 ft

    Flood waters threaten properties along Dodd Road in Willoughby Hills. Properties on Riverside Drive impacted in Eastlake.

  6. 16.00 ft

    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.

  7. 16.50 ft

    The river gage is flooded. Major flooding will affect low lying property near the river.

  8. 18.00 ft

    100 year flood level. Major flooding from Willoughby Hills to Eastlake. Considerable backwater flooding along all tributaries.

  9. 22.00 ft

    500 year flood level.

Written by the local National Weather Service forecast office for this exact gauge.

Frequently asked questions

Is the Chagrin River flooding at Willoughby?

No. The Chagrin River at Willoughby is at 3.26 ft, 5.74 ft below action stage.

What is the flood stage at Willoughby?

The National Weather Service sets action stage 9 ft, minor flooding 12 ft, moderate flooding 14 ft and major flooding 16 ft.

What is the highest the Chagrin River has been at Willoughby?

The highest crest on record is 17.95 ft, on 1948-03-22.

Is the Chagrin River high or low right now at Willoughby?

At 3.26 ft it is higher than 21% of readings over the last 122 days.

Stage and flood information from the NOAA National Weather Service (gauge WBYO1); daily history from the U.S. Geological Survey (site 04209000). Last reading 2026-10-13. For flood safety decisions always follow official National Weather Service warnings.