St. Johns River above Lake Harney near Geneva, FL

Seminole County, Florida · USGS gauge 02234000 · NWS GENF1 · St. Johns River flood status · Florida river levels

Is St. Johns River above Lake Harney near Geneva, FL flooding right now?

St. Johns River above Lake Harney near Geneva, FL measured 4.92 ft on 2026-09-22 20:30:00 UTC. That observation was 3.1 ft below its 8 ft flood stage. This is the latest available reading, not a guarantee of current conditions.

Gauge height
4.92 ft
as of 66 min ago
Streamflow
2,900 cfs
data refreshed 5 min ago

Minor flooding here begins at 8 ft, with major flooding at 10 ft. The highest crest on record was 12.67 ft on Mon, Oct 3, 2022.

Streamflow outlook

NOAA National Water Model forecast, issued 10 hours ago. The NWM models discharge for every river reach in the country, including the many gauges the National Weather Service does not forecast individually. It is a model, not an official NWS river forecast, and it predicts flow rather than water level.

Flood stages at this gauge

CategoryStageCurrent distance
Action6 ft1.1 ft below
Minor flood8 ft3.1 ft below
Moderate flood9 ft4.1 ft below
Major flood10 ft5.1 ft below

New to these numbers? What does flood stage mean? · How to read a river gauge · Why is the river rising?

Highest crests on record

StageDate
12.67 ft2022-10-03
11.15 ft2008-08-28
10.62 ft1953-10-13
10.52 ft2017-09-19
10.15 ft2024-10-15

Nearby gauges

GaugeDistanceCounty
Econlockhatchee River near Chuluota, FL5.4 miSeminole County
St. Johns River at Osceola, FL5.7 miSeminole County
Econlockhatchee River near Oviedo, FL9.1 miSeminole County
Lake Jesup Outlet near Sanford, FL10.1 miSeminole County
Big Flounder Creek near Scottsmoor, FL11.8 miBrevard County
Provisional data: Real-time readings are provisional and subject to revision by the USGS — sensors can be affected by ice, debris, or equipment malfunction. Do not rely on this site for decisions involving personal safety; follow official guidance from the National Weather Service and local authorities.

Sources: USGS monitoring location · NWS gauge & forecast