Imnaha River At Imnaha flow report
As of July 15, 2026, Imnaha River At Imnaha is flowing at 150 cfs. Source: USGS gauge #13292000, refreshed throughout the day.
Historical Data
Imnaha River At Imnaha at a glance
How Imnaha River At Imnaha is running right now, where it sits on the map, and the key gauge stats.
Imnaha River At Imnaha is flowing at 150 cfs, with the water sitting ft at the gage.
This is USGS gauge #13292000 in Oregon. Over the past 10 days the average has been 150 cfs, peaking at 150 cfs.
For real-time updates and historical context, see the realtime view or the historical comparison. Browse other gauges in the Oregon flow report.
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.
Imnaha River At Imnaha
The Imnaha River is a tributary of the Snake River and includes several smaller tributaries. The river flows through a rugged canyon and is known for its scenic beauty. The hydrology of the river is influenced by seasonal trends, with peak flows occurring in late spring and early summer due to snowmelt. The river is also impacted by several dams, including the Wallowa-Grande Ronde Diversion Dam. Interestingly, the Imnaha River is home to a variety of fish species, including Chinook salmon, steelhead, and smallmouth bass.
Nearby streamflow levels
Cross-check Imnaha River At Imnaha's discharge against nearby gauges to spot whether the change here is local or regional.
| Gauge | Streamflow |
|---|---|
| Imnaha River At Imnaha | 150 cfs |
| Snake River At Hells Canyon Dam Id-Or State Line | 19,200 cfs |
| Little Salmon River At Riggins Id | 297 cfs |
| Salmon River At White Bird Id | 7,670 cfs |
| Snake River Bl Mcduff Rapids At China Gardens | 19,700 cfs |
| Snake River Near Anatone | 17,800 cfs |
Nearby snowpack data
Snowpack at SNOTEL stations near Imnaha River At Imnaha. 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 |
|---|---|
| Joseph | 0 in |
| Mt. Howard | 6 in |
| Lucile 1.2 Nne | 0 in |
| Nohrsc Mt. Howard | 0 in |
| Aneroid Lake #2 | 0 in |
| Nohrsc Aneroid Lake #2 | 0 in |
Plan a trip
Reservoirs, boat launches, river runs, and fishing spots within driving distance of Imnaha River At Imnaha.
Boat launches
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River runs
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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 Imnaha River At Imnaha in the Snoflo app
Save this gauge as a favorite, set push alerts when streamflow crosses a threshold (e.g. "alert me when Imnaha River At Imnaha crosses 5,000 cfs"), and Snoflo's iOS app will push the moment USGS reports the crossing.
About Imnaha River At Imnaha
Where does the streamflow data for Imnaha River At Imnaha come from?
Discharge, gage height, and water temperature come directly from the USGS streamflow gauge 13292000. 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 Imnaha River At Imnaha 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 Imnaha River At Imnaha report
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