River stage
Shelley, Snake River
- River level
- 5.47 ft
- Status
- Below flood stage
- 7-day change
- +0.35 ft
- Recent high
- 7.88 ft
- Recent low
- 5.03 ft
Last reported 2026-10-13 | NWS SHYI1
- 30-day change
- -1.04 ft
- Average
- 6.80 ft
- Readings
- 122
- Data span
- 122 days
- Record crest
- 16.97 ft
In brief
The Snake River at Shelley, ID read 5.47 ft on Oct 13, 2026, 6.53 ft below action stage. That is 1.04 ft lower than 30 days earlier.
Source: National Weather Service gauge SHYI1
River level timeline
Stage threshold profile
Highest crests on record
| Rank | Crest | Date |
|---|---|---|
| 1 | 16.97 ft | 1918-06-17 |
| 2 | 16.05 ft | 1997-06-17 |
| 3 | 14.68 ft | 1917-06-22 |
| 4 | 14.36 ft | 1928-05-29 |
| 5 | 13.15 ft | 2011-05-28 |
| 6 | 12.90 ft | 1984-05-17 |
| 7 | 12.24 ft | 2017-06-16 |
| 8 | 12.17 ft | 1983-06-14 |
Flood crests recorded at this gauge by the National Weather Service.
What happens at each level
- 12.50 ft
Water will cover the end of Highline Road near the riverjust south of Firth. Some outbuildings at the end of Highline Road will have water in or around them and water may cover some driveways. Lowland flooding will occur adjacent to the river around Shelley downstream to near Rose.
- 13.00 ft
Moderate lowland flooding will occur along the river.
- 13.50 ft
Major flooding of farmland is likely. Water may cover a few county roads near the river. Low lying properties near the river around Shelley and Firth may be inundated with water.
Written by the local National Weather Service forecast office for this exact gauge.
Frequently asked questions
Is the Snake River flooding at Shelley?
No. The Snake River at Shelley is at 5.47 ft, 6.53 ft below action stage.
What is the flood stage at Shelley?
The National Weather Service sets action stage 12 ft, minor flooding 12.5 ft, moderate flooding 13 ft and major flooding 13.5 ft.
What is the highest the Snake River has been at Shelley?
The highest crest on record is 16.97 ft, on 1918-06-17.
Is the Snake River high or low right now at Shelley?
At 5.47 ft it is higher than 12% of readings over the last 122 days.
Stage and flood information from the NOAA National Weather Service (gauge SHYI1); daily history from the U.S. Geological Survey (site 13060000). Last reading 2026-10-13. For flood safety decisions always follow official National Weather Service warnings.