Grand River at Portland
Observed Mon, Sep 28, 5:00 AM EDT
- Flood stage
- 12.00 ft
- Record crest
- 12.98 ft1975
Flood stages and impacts
| Category | Stage |
|---|---|
| Major flood | 16.00 ft |
| Moderate flood | 14.00 ft |
| Minor flood | 12.00 ft |
| Action | 11.00 ft |
- 16.00 ftExpect major flooding of the business district and residential areas in the Village of Lyons and basement flooding of residences on the west side of Kent Street in Portland.
- 14.00 ftExpect moderate flooding of the first floor of residences and businesses in the south section of the Village of Lyons. Elizabeth, Superior, and Railroad Streets in the Village of Lyons closed due to flooding.
- 12.00 ftExpect minor flooding in the Village of Lyons and low lying areas adjacent to the river. Two Rivers Park in Portland flooded.
- 11.00 ftRiver is bankfull. Expect minor flooding of low areas along the river upstream and downstream of Portland.
Flood outlook
Chance of flooding, September to November
| Category | Chance |
|---|---|
| Minor flooding | Under 5% |
| Moderate flooding | Under 5% |
| Major flooding | Under 5% |
The three-month chances are the River Forecast Centers’ long-range flood outlook, issued September 25, 2026.
Crest history
70 crests on NOAA’s list since 1953.
| # | Date | Stage |
|---|---|---|
| 1 | April 21, 1975 | 12.98 ft |
| 2 | May 24, 2004 | 12.84 ft |
| 3 | February 23, 2018 | 12.62 ft |
| 4 | February 27, 2019 | 12.45 ft |
| 5 | April 6, 2023 | 12.21 ft |
| 6 | March 17, 1982 | 12.05 ft |
| 7 | June 30, 1968 | 11.57 ft |
| 8 | March 31, 1960 | 11.56 ft |
| 9 | September 15, 2008 | 11.51 ft |
| 10 | May 13, 1956 | 11.51 ft |
| 11 | April 8, 2017 | 11.41 ft |
| 12 | May 19, 2020 | 11.32 ft |
| 13 | January 13, 2005 | 11.19 ft |
| 14 | March 5, 1976 | 11.19 ft |
| 15 | April 20, 1993 | 11.17 ft |
| 16 | February 11, 2001 | 11.12 ft |
| 17 | May 30, 2011 | 11.07 ft |
| 18 | June 23, 2015 | 11.02 ft |
| 19 | March 11, 1974 | 10.93 ft |
| 20 | June 20, 2019 | 10.90 ft |
| 21 | March 12, 2009 | 10.86 ft |
| 22 | April 19, 2013 | 10.84 ft |
| 23 | June 1, 1989 | 10.83 ft |
| 24 | January 28, 1991 | 10.66 ft |
| 25 | January 1, 1973 | 10.62 ft |
Most recent crests
- January 28, 2024: 10.25 ft
- April 6, 2023: 12.21 ft
- April 25, 2022: 9.37 ft
- June 27, 2021: 10.59 ft
- May 19, 2020: 11.32 ft
- June 20, 2019: 10.90 ft
- February 27, 2019: 12.45 ft
- February 23, 2018: 12.62 ft
- April 8, 2017: 11.41 ft
- April 1, 2016: 8.95 ft
Nearby
Upstream, downstream and the gauges around this one.
What this means
Forecasts by the North Central River Forecast Center. 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. River forecasts for this location take into account past precipitation and the precipitation amounts expected approximately 48 hours into the future from the forecast issuance time. Stage may be affected by ice during winter months.
Sources
Stage, flood stages, impacts and crest history from NOAA’s National Water Prediction Service. Streamflow and the daily record from the U.S. Geological Survey.