La Moine River at Colmar, IL

River level and flood forecast · McDonough County

Normal4.7 ftas of Mon 2:45 PM

The river is 15.3 ft below flood stage (20 ft).

Flow: 113 cubic feet per second (USGS).

The last 7 days and the forecast

0510152025TueWedThuFriSatSunMonAction 19 ftFlood 20 ftModerate 22 ftMajor 24 ftNowObserved (ft)NWS forecast

NWS forecast issued Sun, Dec 31, 6 PM. Forecasts change as rain falls and as upstream water arrives.

Flood stages

Major flood stage24 ft
Moderate flood stage22 ft
Flood stage20 ft
Action stage19 ft
Record crest (April 19, 2013)28.94 ft

What floods at each level

From the National Weather Service, highest first.

  • 32 ftWater is over the Illinois Highway 61 bridge railings at Colmar.
  • 29.5 ftWater affects Illinois Highway 61 near the La Moine River bridge.
  • 28.5 ftWater is at the bottom of the U.S. Highway 136 bridge deck near Tennessee.
  • 28 ftWater is at the bottom of the Illinois Highway 101 bridge deck at Brooklyn.
  • 27.2 ftWater is at the bottom of the North 270th Road bridge deck.
  • 27 ftWater is at the bottom of the Camp Creek Road bridge deck at Birmingham. Water also affects some houses east of Plymouth.
  • 26.5 ftWater is at the bottom of the Illinois Highway 61 and County Road 26 bridge decks.
  • 25.5 ftWater is at the bottom of the County Road 6 bridge deck near Saint Mary.
  • 24 ftWater affects a few houses near the McDonough and Schuyler county line.
  • 22.5 ftWater affects lower roads around Birmingham.
  • 20 ftWater affects the lowest portions of Lambert Road and affects Lamar Road approximately 100 feet north of the intersection with County Road 26.

Highest crests on record

  1. 28.94 ft — April 19, 2013
  2. 27.03 ft — January 3, 1965
  3. 26.61 ft — March 5, 1985
  4. 25.76 ft — May 13, 2002
  5. 25.69 ft — October 4, 1986

Recent crests: 22.48 ft (July 12, 2021) · 22.01 ft (May 19, 2020) · 24.06 ft (May 26, 2019) · 20.24 ft (February 21, 2018) · 21.71 ft (May 2, 2017)

Up and down the river, and nearby

Not an official source. River levels, forecasts, flood stages and impacts are from the National Weather Service (CLMI2); flow from the U.S. Geological Survey. Readings are provisional. In a flood, follow your local officials and the NWS at weather.gov.