Major Flood
16 ft
Current Water Level
Gage Height
Loading...
Streamflow
Loading...
Last Reading
Loading...
FLOOD STAGES
Know the flood categories.
Flood stages defined by the National Weather Service. Gage height data from USGS Water Resources.
Moderate Flood
14 ft
Minor Flood
12 ft
Action Stage
11 ft
What Floods at Each Level
16 ft
Expect 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 ft
Expect 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 ft
Expect minor flooding in the Village of Lyons and low lying areas adjacent to the river. Two Rivers Park in Portland flooded.
11 ft
River is bankfull. Expect minor flooding of low areas along the river upstream and downstream of Portland.
Impact statements from the National Weather Service, describing what typically happens at each water level.
7-Day Water Level Chart
Loading chart data...
Historic Crests
| Date | Stage | Flow |
|---|---|---|
| Apr 20, 1975 | 12.98 ft | 12,400 cfs |
| May 23, 2004 | 12.84 ft | 11,800 cfs |
| Feb 22, 2018 | 12.62 ft | 11,300 cfs |
About This Gauge
Get Flood Alerts for Grand River
StormCast monitors this gauge and sends a push notification to your phone when the water level crosses into a new flood category — even at 3 AM.
Frequently Asked Questions
What is the current water level of Grand River at Portland?
The Grand River at Portland gauge is maintained by USGS (site 04114000) and reports water levels every 15 minutes. Visit this page to see the latest reading updated live, or download StormCast to get push alerts when levels rise.
What is flood stage for Grand River at Portland?
The NWS-defined flood stage for Grand River at Portland is 12 feet. Action stage begins at 11 feet. Moderate flooding starts at 14 feet, and major flooding at 16 feet.
How do I get alerts when Grand River rises?
Download StormCast free on Google Play, go to River Gauges, and add Grand River at Portland to your watchlist. StormCast will send a push notification to your phone whenever the water level crosses into a new NWS flood category.
Where is the Grand River at Portland gauge located?
The gauge is located in Ionia County, Michigan at coordinates 42.8564°N, 84.9122°W. USGS site number: 04114000. Data is provided by the U.S. Geological Survey and the National Weather Service.
More Gauges on Grand River
On This River
More Resources
Source & Notes
Data provided by: US Geological Survey, Observations courtesy of U.S. Geological Survey
- 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.