San Antonio River near Floresville, TX

River level and flood forecast · Wilson County

Normal3.6 ftas of Mon 3 PM

The river is 23.4 ft below flood stage (27 ft).

Flow: 116 cubic feet per second (USGS).

The last 7 days and the forecast

010203040TueWedThuFriSatSunMonAction 21 ftFlood 27 ftModerate 33 ftNowObserved (ft)NWS forecast

NWS forecast issued Sun, Dec 31, 6 PM. Forecasts change as rain falls and as upstream water arrives.

Flood stages

Major flood stage42 ft
Moderate flood stage33 ft
Flood stage27 ft
Action stage21 ft
Record crest (June 4, 2016)38.11 ft

What floods at each level

From the National Weather Service, highest first.

  • 42 ftThe river goes over the bridge at County Road 117, and will cause County Road 127 to become flooded and impassable. Calaveras Creek will go over the bridge at County Road 128. Homes in low spots close to the San Antonio River may become threatened.
  • 33 ftSecondary roads near the floodplain may become flooded and impassable. Extensive flooding occurs in lowest portions of Floresville City Park.
  • 27 ftFloodwaters begin to impact lower portions of Floresville City Park.
  • 21 ftWater exceeds the lowest banks along the San Antonio River

Highest crests on record

  1. 38.11 ft — June 4, 2016
  2. 33.46 ft — September 28, 2016
  3. 30.65 ft — June 14, 2025
  4. 30.07 ft — August 23, 2016
  5. 27.95 ft — July 8, 2021

Recent crests: 30.65 ft (June 14, 2025) · 25.56 ft (October 16, 2021) · 27.95 ft (July 8, 2021) · 33.46 ft (September 28, 2016) · 30.07 ft (August 23, 2016)

Up and down the river, and nearby

Not an official source. River levels, forecasts, flood stages and impacts are from the National Weather Service (FLVT2); flow from the U.S. Geological Survey. Readings are provisional. In a flood, follow your local officials and the NWS at weather.gov.