Great Miami River At Troy flow report
As of July 13, 2026, Great Miami River At Troy is flowing at 494 cfs with a gage height of 2.97 ft, rising 64% over the past 24 hours. Source: USGS gauge #03262700, refreshed throughout the day.
Historical Data
Great Miami River At Troy at a glance
How Great Miami River At Troy is running right now, where it sits on the map, and the key gauge stats.
Great Miami River At Troy is flowing at 494 cfs, with the water sitting 2.97 ft at the gage. Flow is up 64% since yesterday — a rising hydrograph.
This is USGS gauge #03262700 in Ohio. Over the past 10 days the average has been 280 cfs, peaking at 494 cfs.
Over the next 5 days, Great Miami River At Troy Oh is expected to recede from today's 494 cfs, toward roughly 362 cfs by 2026-07-18 (likely range 104-1257 cfs) -- drier than normal for the date.
For real-time updates and historical context, see the realtime view or the historical comparison. Browse other gauges in the Ohio flow report.
Streamflow Forecast
Powered by PULSE — Snoflo’s Predictive Unified Learning & Simulation Engine, which learns from how this river has answered every past storm, snowmelt, and dry spell to forecast where it’s headed with a precision generic models can’t match.
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.
Great Miami River At Troy
The river is a major source of drinking water for the region and is also used for recreation. The main constituents of the river include water from various tributaries, including the Stillwater River and the Mad River. The river is also impacted by several dams, including the Tipp City Dam and the Lockington Dam. Seasonal trends show that the flow of the river tends to be highest in the spring due to snowmelt and rainfall. One quirky fact about the hydrology of the river is that it was once so polluted that it caught fire. However, efforts have been made to clean up the river and it is now a popular destination for kayaking and fishing.
Nearby streamflow levels
Cross-check Great Miami River At Troy's discharge against nearby gauges to spot whether the change here is local or regional.
| Gauge | Streamflow |
|---|---|
| Great Miami River At Troy Oh | 494 cfs |
| Great Miami River At Piqua Oh | 431 cfs |
| Stillwater River At Pleasant Hill Oh | 351 cfs |
| Great Miami River At Taylorsville Oh | 679 cfs |
| Loramie Creek At Lockington Oh | 558 cfs |
| Stillwater River At Englewood Oh | 474 cfs |
Nearby snowpack data
Snowpack at SNOTEL stations near Great Miami River At Troy. 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 |
|---|---|
| New Lebanon 0.6 Sse | 0 in |
| Farmersville 1.7 E | 0 in |
| Wfo Wilmington | 0 in |
Plan a trip
Reservoirs, boat launches, river runs, and fishing spots within driving distance of Great Miami River At Troy.
Boat launches
See all →
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 Great Miami River At Troy in the Snoflo app
Save this gauge as a favorite, set push alerts when streamflow crosses a threshold (e.g. "alert me when Great Miami River At Troy crosses 5,000 cfs"), and Snoflo's iOS app will push the moment USGS reports the crossing.
About Great Miami River At Troy
Where does the streamflow data for Great Miami River At Troy come from?
Discharge, gage height, and water temperature come directly from the USGS streamflow gauge 03262700. 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 Great Miami River At Troy 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 Great Miami River At Troy 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