Cosumnes River at Michigan Bar
Critical Stages
7' - Action
12' - Flood
16' - Moderate
18' - Major
Latest Observation
Updated: 9:30 AM PST 12/17/25
Status: No Flooding
Stage: 3 ft
Flow: 0.058 kcfs
Forecast
| Time | Stage (ft) | Flow (kcfs) |
|---|---|---|
| 11 AM 12/17 | 3 | 0.058 |
| 12 PM 12/17 | 3 | 0.058 |
| 1 PM 12/17 | 3 | 0.058 |
| 2 PM 12/17 | 3.01 | 0.059 |
| 3 PM 12/17 | 3.01 | 0.059 |
| 4 PM 12/17 | 3.02 | 0.06 |
| 5 PM 12/17 | 3.03 | 0.062 |
| 6 PM 12/17 | 3.04 | 0.063 |
| 7 PM 12/17 | 3.06 | 0.066 |
| 8 PM 12/17 | 3.08 | 0.069 |
| 9 PM 12/17 | 3.1 | 0.072 |
| 10 PM 12/17 | 3.14 | 0.079 |
| 11 PM 12/17 | 3.2 | 0.089 |
| 12 AM 12/18 | 3.26 | 0.1 |
| 1 AM 12/18 | 3.32 | 0.112 |
| 2 AM 12/18 | 3.38 | 0.125 |
| 3 AM 12/18 | 3.43 | 0.137 |
| 4 AM 12/18 | 3.48 | 0.149 |
| 5 AM 12/18 | 3.51 | 0.157 |
| 6 AM 12/18 | 3.54 | 0.165 |
| 7 AM 12/18 | 3.56 | 0.17 |
| 8 AM 12/18 | 3.58 | 0.176 |
| 9 AM 12/18 | 3.59 | 0.179 |
| 10 AM 12/18 | 3.59 | 0.179 |
| 11 AM 12/18 | 3.59 | 0.179 |
| 12 PM 12/18 | 3.59 | 0.179 |
| 1 PM 12/18 | 3.58 | 0.176 |
| 2 PM 12/18 | 3.58 | 0.176 |
| 3 PM 12/18 | 3.56 | 0.17 |
| 4 PM 12/18 | 3.55 | 0.168 |
| 5 PM 12/18 | 3.54 | 0.165 |
| 6 PM 12/18 | 3.52 | 0.16 |
| 7 PM 12/18 | 3.5 | 0.154 |
| 8 PM 12/18 | 3.49 | 0.152 |
| 9 PM 12/18 | 3.47 | 0.147 |
| 10 PM 12/18 | 3.45 | 0.142 |
| 11 PM 12/18 | 3.43 | 0.137 |
| 12 AM 12/19 | 3.42 | 0.135 |
| 1 AM 12/19 | 3.4 | 0.13 |
| 2 AM 12/19 | 3.38 | 0.125 |
| 3 AM 12/19 | 3.36 | 0.121 |
| 4 AM 12/19 | 3.35 | 0.119 |
| 5 AM 12/19 | 3.33 | 0.115 |
| 6 AM 12/19 | 3.32 | 0.112 |
| 7 AM 12/19 | 3.3 | 0.108 |
| 8 AM 12/19 | 3.29 | 0.106 |
| 9 AM 12/19 | 3.28 | 0.104 |
| 10 AM 12/19 | 3.27 | 0.102 |
| 11 AM 12/19 | 3.26 | 0.1 |
| 12 PM 12/19 | 3.25 | 0.098 |
| 1 PM 12/19 | 3.24 | 0.097 |
| 2 PM 12/19 | 3.23 | 0.095 |
| 3 PM 12/19 | 3.22 | 0.093 |
| 4 PM 12/19 | 3.22 | 0.093 |
| 5 PM 12/19 | 3.21 | 0.091 |
| 6 PM 12/19 | 3.21 | 0.091 |
| 7 PM 12/19 | 3.2 | 0.089 |
| 8 PM 12/19 | 3.2 | 0.089 |
| 9 PM 12/19 | 3.19 | 0.087 |
| 10 PM 12/19 | 3.19 | 0.087 |
| 11 PM 12/19 | 3.19 | 0.087 |
| 12 AM 12/20 | 3.2 | 0.089 |
| 1 AM 12/20 | 3.21 | 0.091 |
| 2 AM 12/20 | 3.21 | 0.091 |
| 3 AM 12/20 | 3.23 | 0.095 |
| 4 AM 12/20 | 3.24 | 0.097 |
| 5 AM 12/20 | 3.26 | 0.1 |
| 6 AM 12/20 | 3.29 | 0.106 |
| 7 AM 12/20 | 3.32 | 0.112 |
| 8 AM 12/20 | 3.36 | 0.121 |
| 9 AM 12/20 | 3.4 | 0.13 |
| 10 AM 12/20 | 3.46 | 0.144 |
| 11 AM 12/20 | 3.51 | 0.157 |
| 12 PM 12/20 | 3.56 | 0.17 |
| 1 PM 12/20 | 3.62 | 0.187 |
| 2 PM 12/20 | 3.67 | 0.202 |
| 3 PM 12/20 | 3.71 | 0.215 |
| 4 PM 12/20 | 3.75 | 0.228 |
| 5 PM 12/20 | 3.79 | 0.241 |
| 6 PM 12/20 | 3.82 | 0.251 |
| 7 PM 12/20 | 3.85 | 0.262 |
| 8 PM 12/20 | 3.88 | 0.273 |
| 9 PM 12/20 | 3.91 | 0.285 |
| 10 PM 12/20 | 3.92 | 0.288 |
| 11 PM 12/20 | 3.93 | 0.292 |
| 12 AM 12/21 | 3.94 | 0.296 |
| 1 AM 12/21 | 3.95 | 0.3 |
| 2 AM 12/21 | 3.95 | 0.3 |
| 3 AM 12/21 | 3.96 | 0.304 |
| 4 AM 12/21 | 3.98 | 0.312 |
| 5 AM 12/21 | 4.01 | 0.324 |
| 6 AM 12/21 | 4.06 | 0.346 |
| 7 AM 12/21 | 4.14 | 0.381 |
| 8 AM 12/21 | 4.23 | 0.425 |
| 9 AM 12/21 | 4.34 | 0.481 |
| 10 AM 12/21 | 4.49 | 0.566 |
| 11 AM 12/21 | 4.66 | 0.674 |
| 12 PM 12/21 | 4.84 | 0.801 |
| 1 PM 12/21 | 5.08 | 0.994 |
| 2 PM 12/21 | 5.32 | 1.21 |
| 3 PM 12/21 | 5.58 | 1.48 |
| 4 PM 12/21 | 5.77 | 1.69 |
| 5 PM 12/21 | 5.91 | 1.87 |
| 6 PM 12/21 | 6.05 | 2.05 |
| 7 PM 12/21 | 6.21 | 2.27 |
| 8 PM 12/21 | 6.34 | 2.46 |
| 9 PM 12/21 | 6.46 | 2.65 |
| 10 PM 12/21 | 6.54 | 2.78 |
| 11 PM 12/21 | 6.62 | 2.91 |
| 12 AM 12/22 | 6.7 | 3.05 |
| 1 AM 12/22 | 6.79 | 3.21 |
| 2 AM 12/22 | 6.88 | 3.37 |
| 3 AM 12/22 | 6.96 | 3.52 |
| 4 AM 12/22 | 7.02 | 3.64 |
| Time | Stage (ft) | Flow (kcfs) |
|---|---|---|
| 9:30 AM 12/17 | 3 | 0.058 |
| 9:15 AM 12/17 | 3 | 0.058 |
| 9:00 AM 12/17 | 2.98 | 0.055 |
| 8:45 AM 12/17 | 3 | 0.058 |
| 8:30 AM 12/17 | 2.98 | 0.055 |
| 8:15 AM 12/17 | 2.99 | 0.056 |
| 8:00 AM 12/17 | 2.98 | 0.055 |
| 7:45 AM 12/17 | 2.99 | 0.056 |
| 7:30 AM 12/17 | 2.98 | 0.055 |
| 7:15 AM 12/17 | 3 | 0.058 |
| 7:00 AM 12/17 | 2.99 | 0.056 |
| 6:45 AM 12/17 | 3.01 | 0.059 |
| 6:30 AM 12/17 | 3 | 0.058 |
| 6:15 AM 12/17 | 2.98 | 0.055 |
| 6:00 AM 12/17 | 3.01 | 0.059 |
| 5:45 AM 12/17 | 3 | 0.058 |
| 5:30 AM 12/17 | 2.99 | 0.056 |
| 5:15 AM 12/17 | 3.01 | 0.059 |
| 5:00 AM 12/17 | 2.99 | 0.056 |
| 4:45 AM 12/17 | 3 | 0.058 |
| 4:30 AM 12/17 | 3 | 0.058 |
| 4:15 AM 12/17 | 2.98 | 0.055 |
| 4:00 AM 12/17 | 2.98 | 0.055 |
| 3:45 AM 12/17 | 3 | 0.058 |
| 3:30 AM 12/17 | 3 | 0.058 |
| 3:15 AM 12/17 | 2.98 | 0.055 |
| 3:00 AM 12/17 | 3.01 | 0.059 |
| 2:45 AM 12/17 | 2.98 | 0.055 |
| 2:30 AM 12/17 | 3 | 0.058 |
| 2:15 AM 12/17 | 3 | 0.058 |
13.2' -
Water floods houses in Wilton. The south bank levee near Wilton is overtopped.
12' -
Water flows on to the road near Wilton.
8' -
Low lying lands along the river begin to flood.
| Date | Stage (ft) |
|---|---|
| Jan 2, 1997 | 18.54 |
| Dec 31, 2022 | 16.83 |
| Mar 1, 1907 | 16.3 |
| Feb 17, 1986 | 14.76 |
| Dec 23, 1955 | 14.59 |
| Feb 1, 1963 | 14.11 |
| Dec 23, 1964 | 13.8 |
| Feb 16, 1982 | 13.8 |
| Dec 31, 2005 | 13.68 |
| Apr 4, 2006 | 13.37 |
| Feb 3, 1998 | 13.21 |
| Jan 13, 1980 | 13.17 |
| Jan 1, 2017 | 13.15 |
| Feb 8, 2017 | 12.91 |
| Apr 3, 1958 | 12.18 |
| Jan 13, 1909 | 12 |
| Jan 31, 1911 | 12 |
| Nov 18, 1950 | 11.85 |
| Feb 9, 1999 | 11.75 |
| Mar 22, 2018 | 11.67 |
Data provided by the National Weather Service.
