Tobacco River Near Eureka flow report
As of July 16, 2026, Tobacco River Near Eureka is flowing at 388 cfs. Source: USGS gauge #12301300, refreshed throughout the day.
Historical Data
Tobacco River Near Eureka at a glance
How Tobacco River Near Eureka is running right now, where it sits on the map, and the key gauge stats.
Tobacco River Near Eureka is flowing at 388 cfs, with the water sitting 3.10 ft at the gage.
This is USGS gauge #12301300 in Montana. Over the past 10 days the average has been 301 cfs, peaking at 388 cfs.
For real-time updates and historical context, see the realtime view or the historical comparison. Browse other gauges in the Montana flow report.
Engineering Data
Flow-duration statistics and observed peak-flow context computed from this gauge’s complete daily record (USGS #12301300).
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.
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.
Tobacco River Near Eureka
The river's constituents include sediment, nutrients, and organic matter. There are no major tributaries or dams on the river. Seasonal trends show higher flows in the spring due to snowmelt and lower flows in the summer and fall. Interestingly, the Tobacco River is known for its high water clarity and is a popular spot for fly fishing. The river is also home to a variety of fish species, including cutthroat trout, rainbow trout, and whitefish.
Nearby streamflow levels
Cross-check Tobacco River Near Eureka's discharge against nearby gauges to spot whether the change here is local or regional.
| Gauge | Streamflow |
|---|---|
| Tobacco River Near Eureka Mt | 388 cfs |
| Flathead River At Flathead British Columbia | 735 cfs |
| Kootenai River Bl Libby Dam Nr Libby Mt | 9,070 cfs |
| Fisher River Near Libby Mt | 129 cfs |
| Yaak River Near Troy Mt | 231 cfs |
| Kootenai River At Leonia Id | 10,100 cfs |
Nearby snowpack data
Snowpack at SNOTEL stations near Tobacco River Near Eureka. 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 |
|---|---|
| Stahl Peak | — |
| Stahl Peak | 18 in |
| Nohrsc Grave Creek | 0 in |
| Grave Creek | 0 in |
| 14a17 - Stryker Basin | 1 in |
| Yaak 9nne | 0 in |
Plan a trip
Reservoirs, boat launches, river runs, and fishing spots within driving distance of Tobacco River Near Eureka.
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 Tobacco River Near Eureka in the Snoflo app
Save this gauge as a favorite, set push alerts when streamflow crosses a threshold (e.g. "alert me when Tobacco River Near Eureka crosses 5,000 cfs"), and Snoflo's iOS app will push the moment USGS reports the crossing.
About Tobacco River Near Eureka
Where does the streamflow data for Tobacco River Near Eureka come from?
Discharge, gage height, and water temperature come directly from the USGS streamflow gauge 12301300. 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 Tobacco River Near Eureka 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 Tobacco River Near Eureka report
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