Big Wood River near Ketchum, ID
River level and flood forecast · Blaine County
The river is 3.0 ft below flood stage (8 ft).
Forecast to hold near 5.0 ft through Mon, Oct 19, 6 PM.
Flow: 61 cubic feet per second (USGS).
The last 7 days and the forecast
NWS forecast issued Mon, Oct 12, 1:07 PM. Forecasts change as rain falls and as upstream water arrives.
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An email when the National Weather Service forecasts Big Wood River near Ketchum to flood, when it floods, and when it's over.
Flood stages
| Major flood stage | 10 ft |
| Moderate flood stage | 9 ft |
| Flood stage | 8 ft |
| Action stage | 7.5 ft |
| Record crest (May 7, 2017) | 9.89 ft |
What floods at each level
From the National Weather Service, highest first.
- 10 ftWidespread lowland flooding from Easley Hot Springs dowriver to Ketchum. Numerous properties will have water inundation. Sun Peak Picnic area flooded; Idaho Highwyat 75 may have erosion problems in several locations.
- 9 ftWidespread lowland flooding from Easley Hot Springs downriver to Ketchum. Many properties will have water inundation. Sun Peak Picnic area flooded; Idaho Highway 75 may have bank erosion from Cottonwood Lane to Glassford Drive.
- 8 ftLowland flooding from near the SNRA building downriver into Ketchum. Property near Chocolate Gulch Road downstream to Ketchum will have flooding; Sun Peak Picnic Area flooded; Fox Creek Trailhead may be closed
- 7.5 ftNear bankfull from Easley Hot Springs downriver to Ketchum.
Highest crests on record
- 9.89 ft — May 7, 2017
- 8.74 ft — April 26, 2012
- 7.61 ft — June 24, 2011
- 7.52 ft — June 12, 2022
- 7.49 ft — June 6, 2019
Recent crests: 7.52 ft (June 12, 2022) · 6.08 ft (June 5, 2021) · 6.52 ft (May 31, 2020) · 7.49 ft (June 6, 2019) · 7.35 ft (May 27, 2018)
Up and down the river, and nearby
- UpstreamNorth Fork Big Wood River near Ketchum, ID
- Trail Creek (ID) at Ketchum, ID
- East Fork Big Wood River at Gimlet, ID
- North Fork Big Lost River at Wild Horse, ID
- Big Wood River at Hailey, ID
- Big Wood River at S. Broadford Bridge, ID
- Big Lost River at Howell Ranch, ID
- Little Wood River above High 5 Creek, ID
Not an official source. River levels, forecasts, flood stages and impacts are from the National Weather Service (BWKI1); flow from the U.S. Geological Survey. Readings are provisional. In a flood, follow your local officials and the NWS at weather.gov.