Flood Advisory
2026-10-02T11:00:00-05:00

* WHAT...Urban area and small stream flooding caused by excessive rainfall is expected. * WHERE...Bexar County in south central Texas... * WHEN...Until 1100 AM CDT. * IMPACTS...Minor flooding in low-lying and poor drainage areas. Water over roadways. * ADDITIONAL DETAILS... - At 805 AM CDT, Doppler radar indicated heavy rain due to thunderstorms. This will cause urban and small stream flooding. Between 1 and 2 inches of rain have fallen. - Additional rainfall amounts up to 1 inch are expected over the area. This additional rain will result in minor flooding. - Some locations that will experience flooding include... San Antonio, Converse, Universal City, Live Oak, San Antonio Int Airport, Stinson Municipal Airport, Randolph AFB, Leon Valley, Helotes, Kirby, Alamo Heights, Windcrest, Terrell Hills, Shavano Park, Hollywood Park, Cross Mountain, Olmos Park, St. Hedwig and Somerset. - http://www.weather.gov/safety/flood

Realtime Data

Texas

Medina River

Explore Interactive Map

Flood Advisory
Until 2026-10-02T11:00:00-05:00 • National Weather Service
* WHAT...Urban area and small stream flooding caused by excessive rainfall is expected. * WHERE...Bexar County in south central Texas... * WHEN...Until 1100 AM CDT. * IMPACTS...Minor flooding in low-lying and poor drainage areas. Water over roadways. * ADDITIONAL DETAILS... - At 805 AM CDT, Doppler radar indicated heavy rain due to thunderstorms. This will cause urban and small stream flooding. Between 1 and 2 inches of rain have fallen. - Additional rainfall amounts up to 1 inch are expected over the area. This additional rain will result in minor flooding. - Some locations that will experience flooding include... San Antonio, Converse, Universal City, Live Oak, San Antonio Int Airport, Stinson Municipal Airport, Randolph AFB, Leon Valley, Helotes, Kirby, Alamo Heights, Windcrest, Terrell Hills, Shavano Park, Hollywood Park, Cross Mountain, Olmos Park, St. Hedwig and Somerset. - http://www.weather.gov/safety/flood

MEDINA RV AT SAN ANTONIO, TX

Realtime Data • Report • Conditions

395

Discharge (cfs)

4.9

Gauge Height (ft)

USGS 08181500

Streamflow discharge was last observed at 395 cfs, and a gauge height of 4.85 feet. With the % decrease since yesterday, the streamflow average over the past 10 days is 87 .

Weather today, Tomorrow,

The flow is influenced by both natural factors, such as precipitation and temperature, and human factors, such as water withdrawals for irrigation and municipal use. The Medina River watershed includes several dams and reservoirs, including Medina Lake, which can impact the flow of the river. Seasonal trends show that flow is highest in the spring due to increased rainfall and snowmelt, while flow is lowest in the summer and early fall. Interesting fact: the Medina River was once an important transportation route for early settlers and was used to transport goods to and from San Antonio.

October 2, 2026

Elevation	468.0 ft
Last Updated
Gage height, ft	4.85 ft
Streamflow, ft³/s	395.0 ft3/s
Specific conductance, water, unfiltered, microsiemens per centimeter at 25°C	502.0 uS/cm @25C
Dissolved oxygen, water, unfiltered, mg/L	6.7 mg/l
Turbidity, water, unfiltered, monochrome near infra-red LED light, 780-900 nm, detection angle 90 ±2.5°, formazin nephelometric units (FNU)	145.0 FNU
pH, water, unfiltered, field, standard units	7.8 std units
Temperature, water, °C	26.4 deg C
Precipitation, total, in	0.0 in
Percent of Normal	589%
Year Over Year Average	67 cfs
24hr Flow Prediction	cfs
Maximum Recorded	19,700 cfs

SNOFLO^®

Medina Rv At San Antonio, Tx Realtime Data

MEDINA RV AT SAN ANTONIO, TX

Realtime Data • Report • Conditions

395

Discharge (cfs)

4.9

Gauge Height (ft)

October 2, 2026

Seasonal Comparison

Oceanic Nino Index

SNOFLO®

Medina Rv At San Antonio, Tx Realtime Data

MEDINA RV AT SAN ANTONIO, TX

Realtime Data • Report • Conditions

395

Discharge (cfs)

4.9

Gauge Height (ft)

October 2, 2026

Seasonal Comparison

Oceanic Nino Index

$4.99

$3.99

Per Month

SNOFLO^®