Grand River at Ionia

Last updated: Aug 12, 2025, 9:08 AM UTC

No watches, warnings or advisories are in effect for this area.

Warning: no valid ratings curve available. Transformations to and from FEET/CFS/KCFS will not happen.

US Geological Survey
Observations courtesy of U.S. Geological Survey

Scale to Flood Categories

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Traces and Thresholds Click to turn on/off display

CATEGORY STAGE

Major Flooding 25 ft

Moderate Flooding 23 ft

Minor Flooding 21 ft

Action 13.5 ft

Reliability of the Forecast:

NOTE: Forecasts are issued as needed during times of high water, but are not routinely available.

River forecasts for this location take into account past precipitation and the precipitation amounts expected approximately 24 hours into the future from the forecast issuance time.
Stage may be affected by ice during winter months.
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	CATEGORY	STAGE
	Major Flooding	25 ft
	Moderate Flooding	23 ft
	Minor Flooding	21 ft
	Action	13.5 ft

Flood Impacts 🅘

25 - Expect major flooding of Ionia Fairgrounds and businesses and residences in low lying areas near the river. Railroad tracks and several additional businesses flooded in vicinity of Fairgrounds along Steele Street. Homes along Quarry Road flooded.
23 - Expect moderate flooding of several roads, businesses, and residences, in the Ionia area and of structures located in the Ionia Fairgrounds. Water halfway up windows on automobile building at Ionia Fairgrounds. Water begins to flood parking lot of Dollar General store, Save-a-Lot, and the Ionia Secretary of State office. Homes along Quarry Road begin to flood.
21 - Expect minor flooding of several buildings in the Ionia Fairgrounds, a shopping mall near the Fairgrounds, and several businesses and residences in the southern portion of Ionia.

Gauge Info

Coordinates	42.9720, -85.0692
RFC	NCRFC
State	MI
WFO	GRR
County	Ionia
Data Provider(s)
US Geological Survey	USGS--Water Resources of the United States
USGS	04116000

Gauge Location

Recent Crests

1.	23.02 ft	on 04-07-2023
2.	19.94 ft	on 02-24-2022
3.	19.93 ft	on 06-29-2021
4.	23.20 ft	on 05-20-2020
5.	19.89 ft	on 03-16-2019

Historic Crests

1.	24.69 ft	on 04-20-2013
2.	24.40 ft	on 02-23-2018
3.	24.30 ft	on 03-21-1948
4.	23.60 ft	on 04-07-1947
5.	23.43 ft	on 04-01-1960

Vertical Datum Table

type	NAVD88
major Flooding	639.63 ft
moderate Flooding	637.63 ft
minor Flooding	635.63 ft
action	628.13 ft
Latest Value	622.42 ft
Gauge Zero	614.63 ft

Gauge Photos

Photo 1 of 20

Grand River Overflowing into Ionia Fairgrounds

Probability Information

Photo 1 of 3

Weekly Chance of Exceeding Levels
- About this graph
Chance of Exceeding Levels During Entire Period
- About this graph
Short Range Forecast Uncertainty
About this graph | Product Description Document

Unique Local Info

How low could the river get?
USGS Streamflow Duration Hydrographs

Collaborative Agencies

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.

WFO Information

Weather Forecast Office

Grand Rapids

4899 Tim Dougherty Drive SE

Grand Rapids, MI 49512-4034

(616) 949-0643

Ask Questions/Webmaster

Official Homepage

1.	23.02 ft	on 04-07-2023
2.	19.94 ft	on 02-24-2022
3.	19.93 ft	on 06-29-2021
4.	23.20 ft	on 05-20-2020
5.	19.89 ft	on 03-16-2019
6.	24.40 ft	on 02-23-2018
7.	22.12 ft	on 04-08-2017
8.	17.74 ft	on 04-02-2016
9.	17.37 ft	on 06-25-2015
10.	18.88 ft	on 03-24-2014
11.	24.69 ft	on 04-20-2013
12.	21.79 ft	on 04-13-2013
13.	17.22 ft	on 03-04-2012
14.	20.71 ft	on 04-30-2011
15.	18.25 ft	on 03-15-2010
16.	19.44 ft	on 02-14-2009
17.	22.10 ft	on 12-29-2008
18.	18.65 ft	on 09-17-2008
19.	18.12 ft	on 03-14-2007
20.	18.80 ft	on 03-15-2006
21.	20.46 ft	on 01-15-2005
22.	23.41 ft	on 05-25-2004
23.	14.57 ft	on 04-06-2003
24.	17.87 ft	on 03-11-2002
25.	20.59 ft	on 02-12-2001
26.	21.24 ft	on 05-20-2000
27.	20.29 ft	on 04-25-1999
28.	18.83 ft	on 03-21-1998
29.	22.04 ft	on 02-23-1997
30.	20.47 ft	on 06-20-1996
31.	19.10 ft	on 05-23-1996
32.	18.06 ft	on 03-15-1995
33.	20.75 ft	on 02-22-1994
34.	20.60 ft	on 04-22-1993
35.	18.43 ft	on 04-27-1992
36.	20.09 ft	on 11-30-1990
37.	20.79 ft	on 03-14-1990
38.	19.54 ft	on 06-02-1989
39.	18.56 ft	on 04-08-1988
40.	23.01 ft	on 10-03-1986
41.	21.63 ft	on 03-15-1986
42.	23.15 ft	on 02-27-1985
43.	16.85 ft	on 02-14-1984
44.	19.26 ft	on 05-04-1983
45.	22.45 ft	on 03-16-1982
46.	23.18 ft	on 10-03-1981
47.	20.14 ft	on 02-22-1981
48.	14.79 ft	on 04-10-1980
49.	19.99 ft	on 03-08-1979
50.	20.45 ft	on 04-02-1978
51.	13.85 ft	on 04-01-1977
52.	23.19 ft	on 03-06-1976
53.	21.03 ft	on 04-22-1975
54.	21.00 ft	on 03-06-1974
55.	21.38 ft	on 01-02-1973
56.	19.58 ft	on 04-18-1972
57.	18.24 ft	on 04-10-1970
58.	19.54 ft	on 02-01-1969
59.	20.48 ft	on 02-04-1968
60.	19.53 ft	on 04-23-1967
61.	14.92 ft	on 03-24-1966
62.	19.96 ft	on 04-09-1965
63.	11.58 ft	on 05-15-1964
64.	14.79 ft	on 03-20-1963
65.	20.67 ft	on 03-21-1962
66.	16.77 ft	on 04-28-1961
67.	23.43 ft	on 04-01-1960
68.	19.64 ft	on 04-04-1959
69.	16.89 ft	on 03-02-1958
70.	18.53 ft	on 05-22-1957
71.	21.87 ft	on 05-11-1956
72.	17.01 ft	on 03-28-1954
73.	13.18 ft	on 03-17-1953
74.	19.78 ft	on 04-15-1952
75.	19.93 ft	on 02-21-1951
76.	21.78 ft	on 03-29-1950
77.	19.50 ft	on 02-16-1949
78.	24.30 ft	on 03-21-1948
79.	23.60 ft	on 04-07-1947
80.	22.40 ft	on 03-17-1943
81.	23.10 ft	on 03-18-1942
82.	21.50 ft	on 02-14-1938

1.	24.69 ft	on 04-20-2013
2.	24.40 ft	on 02-23-2018
3.	24.30 ft	on 03-21-1948
4.	23.60 ft	on 04-07-1947
5.	23.43 ft	on 04-01-1960
6.	23.41 ft	on 05-25-2004
7.	23.20 ft	on 05-20-2020
8.	23.19 ft	on 03-06-1976
9.	23.18 ft	on 10-03-1981
10.	23.15 ft	on 02-27-1985
11.	23.10 ft	on 03-18-1942
12.	23.02 ft	on 04-07-2023
13.	23.01 ft	on 10-03-1986
14.	22.45 ft	on 03-16-1982
15.	22.40 ft	on 03-17-1943
16.	22.12 ft	on 04-08-2017
17.	22.10 ft	on 12-29-2008
18.	22.04 ft	on 02-23-1997
19.	21.87 ft	on 05-11-1956
20.	21.79 ft	on 04-13-2013
21.	21.78 ft	on 03-29-1950
22.	21.63 ft	on 03-15-1986
23.	21.50 ft	on 02-14-1938
24.	21.38 ft	on 01-02-1973
25.	21.24 ft	on 05-20-2000
26.	21.03 ft	on 04-22-1975
27.	21.00 ft	on 03-06-1974
28.	20.79 ft	on 03-14-1990
29.	20.75 ft	on 02-22-1994
30.	20.71 ft	on 04-30-2011
31.	20.67 ft	on 03-21-1962
32.	20.60 ft	on 04-22-1993
33.	20.59 ft	on 02-12-2001
34.	20.48 ft	on 02-04-1968
35.	20.47 ft	on 06-20-1996
36.	20.46 ft	on 01-15-2005
37.	20.45 ft	on 04-02-1978
38.	20.29 ft	on 04-25-1999
39.	20.14 ft	on 02-22-1981
40.	20.09 ft	on 11-30-1990
41.	19.99 ft	on 03-08-1979
42.	19.96 ft	on 04-09-1965
43.	19.94 ft	on 02-24-2022
44.	19.93 ft	on 02-21-1951
45.	19.93 ft	on 06-29-2021
46.	19.89 ft	on 03-16-2019
47.	19.78 ft	on 04-15-1952
48.	19.64 ft	on 04-04-1959
49.	19.58 ft	on 04-18-1972
50.	19.54 ft	on 02-01-1969
51.	19.54 ft	on 06-02-1989
52.	19.53 ft	on 04-23-1967
53.	19.50 ft	on 02-16-1949
54.	19.44 ft	on 02-14-2009
55.	19.26 ft	on 05-04-1983
56.	19.10 ft	on 05-23-1996
57.	18.88 ft	on 03-24-2014
58.	18.83 ft	on 03-21-1998
59.	18.80 ft	on 03-15-2006
60.	18.65 ft	on 09-17-2008
61.	18.56 ft	on 04-08-1988
62.	18.53 ft	on 05-22-1957
63.	18.43 ft	on 04-27-1992
64.	18.25 ft	on 03-15-2010
65.	18.24 ft	on 04-10-1970
66.	18.12 ft	on 03-14-2007
67.	18.06 ft	on 03-15-1995
68.	17.87 ft	on 03-11-2002
69.	17.74 ft	on 04-02-2016
70.	17.37 ft	on 06-25-2015
71.	17.22 ft	on 03-04-2012
72.	17.01 ft	on 03-28-1954
73.	16.89 ft	on 03-02-1958
74.	16.85 ft	on 02-14-1984
75.	16.77 ft	on 04-28-1961
76.	14.92 ft	on 03-24-1966
77.	14.79 ft	on 04-10-1980
78.	14.79 ft	on 03-20-1963
79.	14.57 ft	on 04-06-2003
80.	13.85 ft	on 04-01-1977
81.	13.18 ft	on 03-17-1953
82.	11.58 ft	on 05-15-1964