Jefferson River near Three Forks
Critical Stages
7' - Action
8' - Flood
8.5' - Moderate
9' - Major
Latest Observation
Updated: 11:00 PM MST 12/14/25
Status: No Flooding
Stage: 3.54 ft
Flow: 1.41 kcfs
Forecast
Forecast not available for this location.
| Time | Stage (ft) | Flow (kcfs) |
|---|---|---|
| 11:00 PM 12/14 | 3.54 | 1.41 |
| 10:45 PM 12/14 | 3.57 | 1.44 |
| 10:30 PM 12/14 | 3.56 | 1.43 |
| 10:15 PM 12/14 | 3.57 | 1.44 |
| 10:00 PM 12/14 | 3.57 | 1.44 |
| 9:45 PM 12/14 | 3.57 | 1.44 |
| 9:30 PM 12/14 | 3.57 | 1.44 |
| 9:15 PM 12/14 | 3.57 | 1.44 |
| 9:00 PM 12/14 | 3.57 | 1.44 |
| 8:45 PM 12/14 | 3.59 | 1.46 |
| 8:30 PM 12/14 | 3.58 | 1.45 |
| 8:15 PM 12/14 | 3.59 | 1.46 |
| 8:00 PM 12/14 | 3.59 | 1.46 |
| 7:45 PM 12/14 | 3.59 | 1.46 |
| 7:30 PM 12/14 | 3.6 | 1.46 |
| 7:15 PM 12/14 | 3.6 | 1.46 |
| 7:00 PM 12/14 | 3.6 | 1.46 |
| 6:45 PM 12/14 | 3.6 | 1.46 |
| 6:30 PM 12/14 | 3.6 | 1.46 |
| 6:15 PM 12/14 | 3.6 | 1.46 |
| 6:00 PM 12/14 | 3.6 | 1.46 |
| 5:45 PM 12/14 | 3.6 | 1.46 |
| 5:30 PM 12/14 | 3.6 | 1.46 |
| 5:15 PM 12/14 | 3.61 | 1.47 |
| 5:00 PM 12/14 | 3.61 | 1.47 |
| 4:45 PM 12/14 | 3.61 | 1.47 |
| 4:30 PM 12/14 | 3.61 | 1.47 |
| 4:15 PM 12/14 | 3.61 | 1.47 |
| 4:00 PM 12/14 | 3.61 | 1.47 |
| 3:45 PM 12/14 | 3.61 | 1.47 |
8.5' -
County roads and bridges have water flowing over them. Several homes flood.May 2018 - Old Town Road just north of Three Forks begins to flood. Road had to be closed.
8' -
Farm buildings flood around Three Forks.Also monitor Boulder River. When Boulder River (BLDM8) starts to go above 8.0 feet, this can have an effect on rise/lowering of the Jefferson River near Three Forks. (June 2017)
7.5' -
At 7.5 Feet...Agricultural land floods near Three Forks.
7.3' -
At 7.3 Feet...Water starts to come out of its bank on the Jefferson River near Silver Star and Waterloo in Madison County. The water is near the foundations of several homes. Waterloo Road and Riverside Drive have water on them. An areal flood advisory is recommended from north of Twin Bridges to north of Waterloo. Look at staff gage PBRM8 for data. (June 2017). PBR only available from July thru September starting in 2018.
| Date | Stage (ft) |
|---|---|
| Jan 3, 1997 | 9.88 |
| Dec 10, 1980 | 9.39 |
| Jun 12, 2011 | 9.38 |
| Jun 11, 1997 | 9.2 |
| Jun 9, 1995 | 9 |
| Dec 14, 1984 | 8.94 |
| Dec 9, 1982 | 8.89 |
| Jun 20, 2010 | 8.77 |
| May 29, 2018 | 8.53 |
| Jun 24, 1984 | 8.51 |
| Jun 22, 2018 | 8.45 |
| Dec 15, 2011 | 8.33 |
| Jun 12, 1996 | 8.17 |
| May 24, 1981 | 8.06 |
| Dec 15, 1997 | 7.85 |
| Dec 15, 1999 | 7.85 |
| Jun 2, 2003 | 7.72 |
| Jun 19, 1982 | 7.63 |
| Jun 19, 1983 | 7.63 |
| Jun 9, 1991 | 7.63 |
Data provided by the National Weather Service.
