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Jefferson River near Twin Bridges, MT

River level and flood forecast · Madison County

Normal3.5 ftas of Mon 1:15 PM

The river is 6.5 ft below flood stage (10 ft).

Flow: 933 cubic feet per second (USGS).

The last 7 days and the forecast

24681012TueWedThuFriSatSunMonAction 9 ftFlood 10 ftModerate 11 ftMajor 12 ftNowObserved (ft)NWS forecast

NWS forecast issued Sun, Dec 31, 5 PM. Forecasts change as rain falls and as upstream water arrives.

Flood stages

Major flood stage12 ft
Moderate flood stage11 ft
Flood stage10 ft
Action stage9 ft
Record crest (June 9, 1997)12.42 ft

What floods at each level

From the National Weather Service, highest first.

  • 10.5 ftFebruary 2019...River stage near 10.5 feet between Twin Bridges and Silver Star. No flooding reported. Cause is an ice jam. The start of the ice jam was north of Silver Star.
  • 9.3 ftMay 30 2018 - Around 9.3 feet, flooding continues downstream around Cardwell. Cardwell post office has water by it. Cardwell School is surrounded by water. Homes along this portion of the Jefferson River surrounded by water and basements flood.
  • 9.1 ftMay 30 2018 - Around 9.1 feet, flooding begins downstream around Cardwell.

Highest crests on record

  1. 12.42 ft — June 9, 1997
  2. 12 ft — June 11, 1996
  3. 11.25 ft — December 14, 2000
  4. 10.5 ft — February 11, 2019
  5. 10.35 ft — January 7, 1999

Recent crests: 10.5 ft (February 11, 2019) · 7.34 ft (April 28, 2012) · 9.7 ft (June 12, 2011) · 9.89 ft (June 11, 2011) · 9.33 ft (June 19, 2010)

Up and down the river, and nearby

See it on the live map →Radar & warnings for Madison CountyNWS gauge pageUSGS gauge 06026500

Not an official source. River levels, forecasts, flood stages and impacts are from the National Weather Service (TWIM8); flow from the U.S. Geological Survey. Readings are provisional. In a flood, follow your local officials and the NWS at weather.gov.