Blackfoot River above Blackfoot Res nr Henry, ID
River level and flood forecast · Caribou County
The river is 4.8 ft below flood stage (6.5 ft).
Flow: 27 cubic feet per second (USGS).
The lowest for October 15 in 53 years of records.
Usual for October 15: 54 to 98 cubic feet per second (the middle half of 53 years).
The last 7 days and the forecast
NWS forecast issued Sun, Dec 31, 5 PM. Forecasts change as rain falls and as upstream water arrives.
Flow against normal, the last 60 days
Each day's average flow from USGS. The shaded band is the middle half of past years on the same date (53 years); the dashed line is their median.
Get flood alerts for this river
An email when the National Weather Service forecasts Blackfoot River above Blackfoot Res nr Henry to flood, when it floods, and when it's over.
Flood stages
| Flood stage | 6.5 ft |
| Action stage | 5.5 ft |
| Record crest (May 9, 1976) | 8.68 ft |
What floods at each level
From the National Weather Service, highest first.
- 6.5 ftFields and low-lying areas near the river between Idaho Highway 34 upstream through the Trail Creek and Slug Creek flats to the Blackfoot narrows may experience seep and ponding. The Blackfoot River in some spots may be nearing bankfull.
- 5.5 ftBlackfoot River above the reservoir into the highland may be approaching bankfull in some locations. Some ponding possible in low-lying areas.
Highest crests on record
- 8.68 ft — May 9, 1976
- 8.64 ft — May 5, 1971
- 8.6 ft — April 26, 1974
- 8.17 ft — May 4, 1982
- 7.95 ft — May 8, 1972
Recent crests: 4.92 ft (May 4, 2022) · 3.42 ft (April 14, 2021) · 5.91 ft (April 24, 2020) · 5.98 ft (April 26, 2019) · 5.62 ft (April 24, 2018)
Highest flow on record
2,150 cubic feet per second — April 26, 1974. From the USGS's yearly peaks since 1914.
Up and down the river, and nearby
- DownstreamBlackfoot River near Shelley (Wolverine Canyon), ID
- Grays Lake Diversion to Blackfoot River near Wayan, ID
- Portneuf River above Toponce Rd, nr Chesterfield ID, ID
- Crow Creek near Fairview, WY
- Bear River at Pescadero, ID
- Salt River (WY) near Etna, WY
- Portneuf River at Topaz, ID
- Greys River near Alpine, WY
- Portneuf River at Inkom, ID, ID
Not an official source. River levels, forecasts, flood stages and impacts are from the National Weather Service (BKHI1); flow from the U.S. Geological Survey. Readings are provisional. In a flood, follow your local officials and the NWS at weather.gov.