San Antonio River near Falls City

1. 37.00 ftTwenty to thirty homes in Falls City are flooded. Major flooding severely damages oil field tank batteries and pump jacks, irrigation pumps, crops and pastureland. Hundreds of livestock can be isolated and drowned. Roads and bridges are severely flooded and dangerous to motorists.
2. 35.00 ftTen to fifteen homes in Falls City are flooded. Major flooding severely damages oil field tank batteries and pump jacks, irrigation pumps, crops and pastureland. Hundreds of livestock can be isolated and drowned. Roads and bridges are severely flooded and dangerous to motorists.
3. 32.00 ftMajor flooding severely damages oil field tank batteries and pump jacks, irrigation pumps, crops and pastureland. Hundreds of livestock can be isolated and drowned. Roads and bridges are severely flooded and dangerous to motorists. Six homes in Falls City are flooded up to four feet.
4. 28.00 ftMajor floodng severely damages oil field pump jacks and tank batteries, irrigation pumps, crops and pastureland and can isolate and drown hundreds of livestock in the flood plain. Lowest homes in the flood plain in Falls City are threatened.
5. 24.00 ftThere is major lowland flooding of crop and pasture land below San Antonio to the Guadalupe River confluence. Livestock in flood prone areas are cut off and potentially drowned. Irrigation pumps and equipment flood severely. Nearly all of Goliad State Park downstream is under water. The levee system downstream near the confluence of the San Antonio and Guadalupe Rivers is threatened.
6. 20.00 ftMajor flooding damages crop and pastureland, irrigation pumps, oil field pump jacks and any equipment in the flood plain. Livestock in flood prone areas are cut off and potentially drowned. Secondary roads and low bridges are flooded near the river and very dangerous.
7. 16.00 ftFlooding significantly damages irrigation pumps, oil field pump jacks and tank batteries and equipment. Livestock in flood prone areas are cut off and potentially drowned. There is significant damage to crop lands in season.
8. 12.00 ftMinor lowland flooding above Falls City to above Goliad floods irrigation pumps, equipment, crops and pastureland. Livestock can be cut off in low areas of the flood plain.
9. 10.00 ftOverbank conditions extend into low areas of the flood plain with no significant damage.

Chance of flooding, September to November

The three-month chances are the River Forecast Centers’ long-range flood outlook, issued August 28, 2026.

Most recent crests

• June 5, 2016: 15.45 ft
• May 26, 2015: 11.70 ft
• May 15, 2015: 13.09 ft
• May 28, 2013: 17.11 ft
• July 22, 2007: 26.59 ft
• November 24, 2004: 20.20 ft
• July 6, 2002: 38.43 ft
• July 4, 2002: 30.13 ft
• October 20, 1998: 33.60 ft
• June 26, 1997: 13.41 ft

• UpstreamSan Antonio River at Floresville
• DownstreamSan Antonio River at SH 72 near Runge
• Cibolo Creek at Falls City
• Atascosa River at McCoy
• Cibolo Creek at Sutherland Springs
• San Antonio River at Elmendorf
• Atascosa River at Whitsett
• Atascosa River at FM 476 near Pleasanton

Forecasts by the West Gulf River Forecast Center. Forecasts are issued as needed during times of high water, but are not routinely available. River forecasts for this location take into account past precipitation and the precipitation amounts expected approximately 24 hours into the future from the forecast issuance time.

Stage, flood stages, impacts and crest history from NOAA’s National Water Prediction Service. Streamflow and the daily record from the U.S. Geological Survey.