Medina River at San Antonio, TX

Bexar County, Texas · USGS gauge 08181500 · NWS SAAT2 · Medina River flood status · Texas river levels

Nearby: river levels near San Antonio · river levels near Elmendorf

Is Medina River at San Antonio, TX flooding right now?

Medina River at San Antonio, TX measured 2.95 ft on 2026-09-23 00:15:00 UTC. That observation was 17.1 ft below its 20 ft flood stage. This is the latest available reading, not a guarantee of current conditions.

Gauge height
2.95 ft
as of 43 min ago
Streamflow
51 cfs
data refreshed 12 min ago

Minor flooding here begins at 20 ft, with major flooding at 28 ft. The highest crest on record was 55.65 ft on Thu, Jul 4, 2002.

Streamflow outlook

NOAA National Water Model forecast, issued 13 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
Action16 ft13.1 ft below
Minor flood20 ft17.1 ft below
Moderate flood24 ft21.1 ft below
Major flood28 ft25.1 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
55.65 ft2002-07-04
55 ft1900-07-01
49.47 ft1998-10-18
43.59 ft1973-07-17
41.57 ft1946-08-29

Last 7 days

Past 7 days · 2.78–3.17 ft

Nearby gauges

GaugeDistanceCounty
San Antonio River at Loop 410, San Antonio, TX4.7 miBexar County
Medina River near Somerset, TX5.5 miBexar County
San Antonio River near Braunig Lake near Elmendorf, TX5.7 miBexar County
Leon Creek at IH 35, San Antonio, TX7.2 miBexar County
Salado Creek at Loop 13, San Antonio, TX8.0 miBexar 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