Snake River near Alpine
Critical Stages
Action
Flood
Moderate
Major
Latest Observation
Updated: 6:30 PM MST 12/15/25
Status: Not Defined
Stage: 2.71 ft
Flow: 1.55 kcfs
Forecast
| Time | Stage (ft) | Flow (kcfs) |
|---|---|---|
| 11 PM 12/15 | 2.78 | 1.64 |
| 5 AM 12/16 | 2.78 | 1.64 |
| 11 AM 12/16 | 2.79 | 1.65 |
| 5 PM 12/16 | 2.8 | 1.67 |
| 11 PM 12/16 | 2.81 | 1.68 |
| 5 AM 12/17 | 2.82 | 1.69 |
| 11 AM 12/17 | 2.92 | 1.83 |
| 5 PM 12/17 | 3.07 | 2.04 |
| 11 PM 12/17 | 3.16 | 2.18 |
| 5 AM 12/18 | 3.16 | 2.18 |
| 11 AM 12/18 | 3.11 | 2.1 |
| 5 PM 12/18 | 3.04 | 2 |
| 11 PM 12/18 | 3 | 1.94 |
| 5 AM 12/19 | 2.99 | 1.93 |
| 11 AM 12/19 | 3.05 | 2.01 |
| 5 PM 12/19 | 3.16 | 2.18 |
| 11 PM 12/19 | 3.3 | 2.39 |
| 5 AM 12/20 | 3.42 | 2.58 |
| 11 AM 12/20 | 3.44 | 2.61 |
| 5 PM 12/20 | 3.39 | 2.53 |
| 11 PM 12/20 | 3.29 | 2.37 |
| 5 AM 12/21 | 3.2 | 2.23 |
| 11 AM 12/21 | 3.13 | 2.13 |
| 5 PM 12/21 | 3.09 | 2.07 |
| 11 PM 12/21 | 3.08 | 2.06 |
| 5 AM 12/22 | 3.08 | 2.06 |
| 11 AM 12/22 | 3.09 | 2.07 |
| 5 PM 12/22 | 3.13 | 2.13 |
| 11 PM 12/22 | 3.18 | 2.21 |
| 5 AM 12/23 | 3.2 | 2.23 |
| 11 AM 12/23 | 3.19 | 2.22 |
| 5 PM 12/23 | 3.16 | 2.18 |
| 11 PM 12/23 | 3.14 | 2.15 |
| 5 AM 12/24 | 3.12 | 2.12 |
| 11 AM 12/24 | 3.11 | 2.1 |
| 5 PM 12/24 | 3.12 | 2.12 |
| 11 PM 12/24 | 3.18 | 2.21 |
| 5 AM 12/25 | 3.26 | 2.33 |
| Time | Stage (ft) | Flow (kcfs) |
|---|---|---|
| 6:30 PM 12/15 | 2.71 | 1.55 |
| 6:15 PM 12/15 | 2.71 | 1.55 |
| 6:00 PM 12/15 | 2.71 | 1.55 |
| 5:45 PM 12/15 | 2.72 | 1.56 |
| 5:30 PM 12/15 | 2.72 | 1.56 |
| 5:15 PM 12/15 | 2.72 | 1.56 |
| 5:00 PM 12/15 | 2.72 | 1.56 |
| 4:45 PM 12/15 | 2.72 | 1.56 |
| 4:30 PM 12/15 | 2.72 | 1.56 |
| 4:15 PM 12/15 | 2.73 | 1.57 |
| 4:00 PM 12/15 | 2.73 | 1.57 |
| 3:45 PM 12/15 | 2.73 | 1.57 |
| 3:30 PM 12/15 | 2.73 | 1.57 |
| 3:15 PM 12/15 | 2.73 | 1.57 |
| 3:00 PM 12/15 | 2.73 | 1.57 |
| 2:45 PM 12/15 | 2.73 | 1.57 |
| 2:30 PM 12/15 | 2.73 | 1.57 |
| 2:15 PM 12/15 | 2.73 | 1.57 |
| 2:00 PM 12/15 | 2.73 | 1.57 |
| 1:45 PM 12/15 | 2.74 | 1.59 |
| 1:30 PM 12/15 | 2.74 | 1.59 |
| 1:15 PM 12/15 | 2.74 | 1.59 |
| 1:00 PM 12/15 | 2.74 | 1.59 |
| 12:45 PM 12/15 | 2.74 | 1.59 |
| 12:30 PM 12/15 | 2.75 | 1.6 |
| 12:15 PM 12/15 | 2.75 | 1.6 |
| 12:00 PM 12/15 | 2.75 | 1.6 |
| 11:45 AM 12/15 | 2.75 | 1.6 |
| 11:30 AM 12/15 | 2.75 | 1.6 |
| 11:15 AM 12/15 | 2.75 | 1.6 |
14.04' -
Record stage and flow---38,600 cfs (6/11/1997).
| Date | Stage (ft) |
|---|---|
| Jun 11, 1997 | 14.04 |
| Jun 11, 1996 | 12.6 |
| Jun 8, 2017 | 12.33 |
| Jun 19, 1974 | 11.96 |
| Jun 28, 1954 | 11.68 |
| Jun 1, 2018 | 11.35 |
| Jul 1, 2011 | 11.3 |
| Jun 30, 1982 | 11 |
| Jun 8, 2010 | 10.88 |
| Jun 29, 1971 | 10.87 |
| May 29, 1983 | 10.82 |
| Jun 8, 1972 | 10.8 |
| May 3, 1956 | 10.79 |
| Jun 11, 1978 | 10.75 |
| Jun 13, 1965 | 10.61 |
| Jun 18, 1999 | 10.6 |
| Jun 7, 2020 | 10.58 |
| Jun 1, 1984 | 10.56 |
| Jun 10, 1981 | 10.49 |
| Jun 13, 1991 | 10.36 |
Data provided by the National Weather Service.
