St. Johns River Near Sanford flow report
As of July 13, 2026, St. Johns River Near Sanford is flowing at 2,340 cfs with a gage height of 1.16 ft, holding steady over the past 24 hours. Source: USGS gauge #02234500, refreshed throughout the day.
Historical Data
St. Johns River Near Sanford at a glance
How St. Johns River Near Sanford is running right now, where it sits on the map, and the key gauge stats.
St. Johns River Near Sanford is flowing at 2,340 cfs, with the water sitting 1.16 ft at the gage. Flow has held roughly steady over the past 24 hours.
This is USGS gauge #02234500 in Florida. Over the past 10 days the average has been 1,871 cfs, peaking at 2,510 cfs.
Over the next 5 days, St. Johns River Nr Sanford is expected to hold near today's 2340 cfs, toward roughly 2150 cfs by 2026-07-17 (likely range 1316-3512 cfs) -- about normal for the date.
For real-time updates and historical context, see the realtime view or the historical comparison. Browse other gauges in the Florida 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.
St. Johns River Near Sanford
Johns River near Sanford, FL streamgauge provides flow data for the St. Johns River, which is a major river in Florida that is approximately 310 miles long. The river is fed by numerous tributaries, including the Wekiva River and the Ocklawaha River. There are several dams along the river, including the Rodman Dam and the Buckman Lock and Dam. Seasonal trends in flow are influenced by rainfall patterns and can fluctuate significantly. Interestingly, the St. Johns River is one of the few rivers in the United States that flows north. The river is an important source of water for both human and ecological systems in Florida.
Nearby streamflow levels
Cross-check St. Johns River Near Sanford's discharge against nearby gauges to spot whether the change here is local or regional.
| Gauge | Streamflow |
|---|---|
| St. Johns River Nr Sanford | 2,340 cfs |
| Wekiva River Nr Sanford | 161 cfs |
| Soldier Creek Nr Longwood | 9 cfs |
| Lake Jesup Outlet Nr Sanford | 994 cfs |
| Gee Creek Nr Longwood | 9 cfs |
| Blackwater Creek Near Cassia | 3 cfs |
Plan a trip
Reservoirs, boat launches, river runs, and fishing spots within driving distance of St. Johns River Near Sanford.
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 St. Johns River Near Sanford in the Snoflo app
Save this gauge as a favorite, set push alerts when streamflow crosses a threshold (e.g. "alert me when St. Johns River Near Sanford crosses 5,000 cfs"), and Snoflo's iOS app will push the moment USGS reports the crossing.
About St. Johns River Near Sanford
Where does the streamflow data for St. Johns River Near Sanford come from?
Discharge, gage height, and water temperature come directly from the USGS streamflow gauge 02234500. 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 St. Johns River Near Sanford 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 St. Johns River Near Sanford report
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