* WHAT...Snow expected. Total snow accumulations between 6 and 12 inches above 6 thousand feet and 4 to 8 inches below 6 thousand feet. Winds gusting as high as 40 mph. * WHERE...Sawtooth/Stanley Basin, Sun Valley Region, Big Hole Mountains, and Centennial Mountains - Island Park. * WHEN...From 5 PM this afternoon to 11 PM MST Wednesday. * IMPACTS...Travel could be very difficult. The hazardous conditions could impact the Wednesday morning and evening commutes.
The ideal streamflow range for this run is between 1,500 to 3,500 cubic feet per second (cfs). The class rating for this run ranges from Class II to III+, depending on the water level.
The segment mileage for this run is approximately 10 miles, and it features several notable rapids such as the "Little Niagra" and "The 3-Step." Other obstacles on this run include boulders, tight turns, and narrow chutes.
There are specific regulations in place for this area, including a requirement for all boaters to wear life jackets at all times and to have a throwable flotation device on board. Additionally, all boats must have a sound-producing device and a whitewater permit from the Idaho Department of Parks and Recreation.
| Last Updated | 2026-01-05 |
| River Levels | 2240 cfs (6.24 ft) |
| Percent of Normal | 97% |
| Status | |
| Class Level | ii |
| Elevation | ft |
| Streamflow Discharge | cfs |
| Gauge Height | ft |
| Reporting Streamgage | USGS 13047600 |
Falls River Nr Ashton Id
|
548cfs |
Falls River Nr Squirrel Id
|
486cfs |
Henrys Fork Nr Ashton Id
|
939cfs |
Falls River Ab Yellowstone Canal Nr Squirrel Id
|
529cfs |
Falls River Nr Chester Id
|
542cfs |
Teton River Nr St Anthony Id
|
659cfs |
| Location | Reservations | Toilets |
|---|---|---|
Warm River Campground
|
||
Warm River
|
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Grandview
|
||
Grand View Campground
|
||
Warm River Cabin
|
||
Jolley Camper
|