Grand River at Ionia, MI

The last 7 days and the forecast

NWS forecast issued Sun, Dec 31, 7 PM. Forecasts change as rain falls and as upstream water arrives.

Flood stages

What floods at each level

From the National Weather Service, highest first.

• 25 ftExpect 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 ftExpect 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 ftExpect 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.
• 18 ftWater surrounds automobile building at Ionia Fairgrounds.
• 16 ftExpect extensive lowland overflow to occur.
• 15 ftHigh water affects North Drive on Ionia Fairgrounds.
• 13.5 ftRiver is bankfull. Minor overflow begins in low lying areas along the river near and across from the Ionia Fairground.

Highest crests on record

1. 24.69 ft — April 20, 2013
2. 24.4 ft — February 23, 2018
3. 24.3 ft — March 21, 1948
4. 23.6 ft — April 7, 1947
5. 23.43 ft — April 1, 1960

Recent crests: 20.05 ft (January 29, 2024) · 23.02 ft (April 7, 2023) · 19.94 ft (February 24, 2022) · 19.93 ft (June 29, 2021) · 23.2 ft (May 20, 2020)

Up and down the river, and nearby

• UpstreamGrand River at Portland, MI
• Flat River at Smyrna, MI
• Looking Glass River near Eagle, MI
• Fish Creek near Crystal, MI
• Grand River at Ada, MI
• Maple River at Maple Rapids, MI
• Thornapple River at Caledonia, MI
• Thornapple River at Hastings, MI