Falls River Above Yellowstone Canal Near Squirrel Flow Report
As of July 21, 2026, Falls River Above Yellowstone Canal Near Squirrel is flowing at 645 cfs with a gage height of 5.81 ft, holding steady over the past 24 hours. Source: USGS gauge #13046995, refreshed throughout the day.
Historical Data
Falls River Above Yellowstone Canal Near Squirrel at a glance
How Falls River Above Yellowstone Canal Near Squirrel is running right now, where it sits on the map, and the key gauge stats.
Falls River Above Yellowstone Canal Near Squirrel is flowing at 645 cfs, with the water sitting 5.81 ft at the gage. Flow has held roughly steady over the past 24 hours.
This is USGS gauge #13046995 in Idaho. Over the past 10 days the average has been 669 cfs, peaking at 691 cfs.
For real-time updates and historical context, see the realtime view or the historical comparison. Browse other gauges in the Idaho flow report.
Engineering Data
Flow-duration statistics and observed peak-flow context computed from this gauge’s complete daily record (USGS #13046995).
Estimate flows at an ungauged site
Drainage-area ratio transfer from this gauge . Most reliable for hydrologically similar sites in the same watershed with area ratios between roughly 0.5 and 1.5.
Percentiles are flow-duration values computed from this gauge’s observed daily record as archived by Snoflo. Return periods are Weibull plotting-position estimates from observed annual maxima, provided as general reference context only. Always verify against official USGS NWIS records. Part of Snoflo for Engineering.
Streamflow Forecast
Over the next 5 days, Falls River Ab Yellowstone Canal Nr Squirrel Id is expected to hold near today's 645 cfs, toward roughly 657 cfs by 2026-07-25 (likely range 473-914 cfs) -- running well below the seasonal normal.
Powered by PULSE — Snoflo’s forecast engine, trained on this gauge’s full record of storms, snowmelt, and dry spells.
| Date | Expected (p50) | Likely range (p25–p75) | vs normal | Projected stage |
|---|
How does this compare to past years?
Year-over-year overlay, annual peak discharge, the full distribution of daily flows on record, and the gauge's rating curve.
Weather Forecast
Next 5 days, hour by hour
Temperature line with weather symbols on top, snow + rain accumulation as columns, humidity as a dotted line.
5-day forecast table
Every 3 hours, broken out across temperature, snow, rain, humidity, and wind.
| Time | Condition | Temp (°F) | Snow (in) | Rain (in) | Humidity (%) | Wind (mps) | Wind dir |
|---|---|---|---|---|---|---|---|
| Loading detailed forecast… | |||||||
15-day forecast
Daily temperatures, snow, and rain projected over the next two weeks.
Falls River Above Yellowstone Canal Near Squirrel
The primary flow providers are snowmelt and precipitation. The hydrology of the area is influenced by several tributaries, including Big Springs Creek and the Teton River. There are also several dams in the region that impact the flow of water in the river. Seasonal trends show that the river experiences its highest flow during the spring and early summer months, while its lowest flow occurs in the winter. Interestingly, the Falls River is known for its excellent fishing opportunities, particularly for cutthroat trout.
Nearby streamflow levels
Cross-check Falls River Above Yellowstone Canal Near Squirrel's discharge against nearby gauges to spot whether the change here is local or regional.
| Gauge | Streamflow |
|---|---|
| Falls River Ab Yellowstone Canal Nr Squirrel Id | 645 cfs |
| Falls River Nr Squirrel Id | 223 cfs |
| Falls River Nr Ashton Id | 508 cfs |
| Henrys Fork Nr Ashton Id | 2,070 cfs |
| Teton River Ab South Leigh Creek Nr Driggs Id | 310 cfs |
| Falls River Nr Chester Id | 344 cfs |
Nearby snowpack data
Snowpack at SNOTEL stations near Falls River Above Yellowstone Canal Near Squirrel. Spring snowmelt is the dominant driver of streamflow in mountain basins -- a deep snowpack upstream means more runoff later in the season.
| SNOTEL station | Snowpack |
|---|---|
| Nohrsc Grassy Lake Snotel | 0 in |
| Grassy Lake | 0 in |
| Driggs 3.4 Nne | 0 in |
| Alta - Coop | 0 in |
| Grand Targhee | 0 in |
| Grand Targhee Snotel | 0 in |
River levels & flood safety
- Read the level before you go
- A river that's runnable at one flow can be deadly at another. Check current discharge and gage height — like the values shown above — against the flood-stage thresholds, and remember levels can spike fast after rain or a dam release.
- Respect cold water
- Snowmelt rivers run cold even in summer. Sudden immersion triggers cold-water shock and saps strength within minutes. Wear a PFD, dress for the water temperature (not the air), and never wade or paddle alone.
- Watch for swiftwater hazards
- Strainers (downed trees), undercut rocks, and low-head dams are the deadliest features on moving water. High, fast, muddy water hides them. If in doubt, scout from shore and portage.
- Mind flash floods & releases
- Narrow canyons can flood from a storm miles upstream, and dam-controlled reaches can rise without warning. Know the forecast, the release schedule, and your exit before you launch.
Track Falls River Above Yellowstone Canal Near Squirrel in the Snoflo app
Save this gauge as a favorite, set push alerts when streamflow crosses a threshold (e.g. "alert me when Falls River Above Yellowstone Canal Near Squirrel crosses 5,000 cfs"), and Snoflo's iOS app will push the moment USGS reports the crossing.
About Falls River Above Yellowstone Canal Near Squirrel
Where does the streamflow data for Falls River Above Yellowstone Canal Near Squirrel come from?
Discharge, gage height, and water temperature come directly from the USGS streamflow gauge 13046995. Snoflo refreshes the time series throughout the day. Forecasts come from the NOAA / yr.no feed Snoflo's iOS app uses.
How often is the report updated?
USGS gauges report continuously (typically every 15 minutes). Snoflo pulls fresh values throughout the day — look for the "as of" timestamp on the streamflow hero card.
What's the difference between discharge and gage height?
Discharge (cubic feet per second, or cfs) is the volume of water flowing past the gauge each second. Gage height is how high the water sits at the gauge (feet). They're related by a rating curve specific to each gauge — higher water means more flow, but the exact ratio depends on channel shape.
How is "percent of median" calculated?
Today's discharge is compared to the historical median discharge on this calendar day across the gauge's full record. 100% = right on median; 200% = a very high year; 30% = a drought-level low.
What are flood stages, and is this river safe right now?
Flood stages are NWS-defined gage-height thresholds — Action, Minor, Moderate, Major — marking when nearby roads or floodplains start to be affected. "Safe" depends on your activity and skill: a level that's a fun paddle for an expert can be lethal for a wader. Always check the current level against the thresholds above and the safety links, and when in doubt, stay off the water.
Can I get alerts when Falls River Above Yellowstone Canal Near Squirrel rises?
Yes — flow alerts are managed in the Snoflo iOS app. Favorite this gauge, set a streamflow threshold (e.g. "alert me when discharge crosses 5,000 cfs"), and you'll get a push the moment USGS reports the crossing.
Access the free Falls River Above Yellowstone Canal Near Squirrel report
Create your free account to track this river — and everything else you love on the water.
- Flow alerts — get pinged the moment this river hits your range
- Save favorites — every river, lake & snowpack in one place
- Full history & forecasts — plus the free iPhone app