Flatrock River At Columbus flow report
As of July 13, 2026, Flatrock River At Columbus is flowing at 505 cfs with a gage height of 4.27 ft, rising 154% over the past 24 hours. Source: USGS gauge #03363900, refreshed throughout the day.
Historical Data
Flatrock River At Columbus at a glance
How Flatrock River At Columbus is running right now, where it sits on the map, and the key gauge stats.
Flatrock River At Columbus is flowing at 505 cfs, with the water sitting 4.27 ft at the gage. Flow is up 154% since yesterday — a rising hydrograph.
This is USGS gauge #03363900 in Indiana. Over the past 10 days the average has been 291 cfs, peaking at 505 cfs.
Over the next 5 days, Flatrock River At Columbus is expected to recede from today's 505 cfs, toward roughly 313 cfs by 2026-07-18 (likely range 98-997 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 Indiana 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.
Flatrock River At Columbus
The river is fed by local streams and tributaries and is subject to seasonal variations in flow rates. There are several dams along the river, including the Mill Race Dam, which can impact flow rates and water quality. Interesting facts include the river's historical significance as a transportation route and its role in the development of the local economy. However, the river also faces challenges from pollution and habitat degradation, highlighting the need for ongoing conservation efforts.
Nearby streamflow levels
Cross-check Flatrock River At Columbus's discharge against nearby gauges to spot whether the change here is local or regional.
| Gauge | Streamflow |
|---|---|
| Flatrock River At Columbus | 505 cfs |
| East Fork White River At Columbus | 893 cfs |
| Haw Creek Near Clifford | 13 cfs |
| Driftwood River Near Edinburgh Ind | 703 cfs |
| Sugar Creek Near Edinburgh | 196 cfs |
| Clifty Creek At Hartsville | 17 cfs |
Nearby snowpack data
Snowpack at SNOTEL stations near Flatrock River At Columbus. 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 |
|---|---|
| Columbus Wastewater Treatment Plant | 0 in |
| Franklin Wastewater Treatment Facility | 0 in |
| Franklin 1w | 0 in |
| Greensburg | 0 in |
| Campbellsburg 8.4 Nne | 0 in |
| Indianapolis Nwfo | 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 Flatrock River At Columbus in the Snoflo app
Save this gauge as a favorite, set push alerts when streamflow crosses a threshold (e.g. "alert me when Flatrock River At Columbus crosses 5,000 cfs"), and Snoflo's iOS app will push the moment USGS reports the crossing.
About Flatrock River At Columbus
Where does the streamflow data for Flatrock River At Columbus come from?
Discharge, gage height, and water temperature come directly from the USGS streamflow gauge 03363900. 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 Flatrock River At Columbus 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 Flatrock River At Columbus report
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