Chattahoochee River At Atlanta flow report
As of July 13, 2026, Chattahoochee River At Atlanta is flowing at 2,740 cfs with a gage height of 4.32 ft, rising 154% over the past 24 hours. Source: USGS gauge #02336000, refreshed throughout the day.
Historical Data
Chattahoochee River At Atlanta at a glance
How Chattahoochee River At Atlanta is running right now, where it sits on the map, and the key gauge stats.
Chattahoochee River At Atlanta is flowing at 2,740 cfs, with the water sitting 4.32 ft at the gage. Flow is up 154% since yesterday — a rising hydrograph.
This is USGS gauge #02336000 in Georgia. Over the past 10 days the average has been 1,519 cfs, peaking at 2,740 cfs.
Over the next 5 days, Chattahoochee River At Atlanta is expected to recede from today's 1080 cfs, toward roughly 922 cfs by 2026-07-17 (likely range 472-1801 cfs) -- running well below the seasonal normal.
For real-time updates and historical context, see the realtime view or the historical comparison. Browse other gauges in the Georgia 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.
Chattahoochee River At Atlanta
The river's main constituents include water, sediment, and nutrients. Tributaries such as Peachtree Creek and Nancy Creek contribute to the flow, while the Buford Dam moderates it. Seasonal trends show higher flows during the spring and fall, with lower flows in the summer and winter. Interesting facts about the Chattahoochee River include its role in the Civil War, its designation as a National Recreation Area, and its importance as a source of drinking water for Atlanta. It is also home to a variety of aquatic species, including the endangered shoal bass.
Nearby streamflow levels
Cross-check Chattahoochee River At Atlanta's discharge against nearby gauges to spot whether the change here is local or regional.
| Gauge | Streamflow |
|---|---|
| Chattahoochee River At Atlanta | 2,740 cfs |
| Nancy Creek At West Wesley Road | 214 cfs |
| Chattahoochee River At Ga 280 | 3,740 cfs |
| Peachtree Creek At Atlanta | 1,330 cfs |
| Nancy Creek At Rickenbacker Drive | 95 cfs |
| Proctor Creek At Jackson Parkway | 28 cfs |
Nearby snowpack data
Snowpack at SNOTEL stations near Chattahoochee River At Atlanta. 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 |
|---|---|
| Jasper | 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 Chattahoochee River At Atlanta in the Snoflo app
Save this gauge as a favorite, set push alerts when streamflow crosses a threshold (e.g. "alert me when Chattahoochee River At Atlanta crosses 5,000 cfs"), and Snoflo's iOS app will push the moment USGS reports the crossing.
About Chattahoochee River At Atlanta
Where does the streamflow data for Chattahoochee River At Atlanta come from?
Discharge, gage height, and water temperature come directly from the USGS streamflow gauge 02336000. 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 Chattahoochee River At Atlanta 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 Chattahoochee River At Atlanta 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