Frio River at Concan

1. 25.00 ftDisastrous life threatening flooding destroys anything in the flood plain from the headwaters to below Concan. Homes are flooded and a few washed downstream below Leakey to below Rio Frio. Up to and over 15 feet of turbulent flow is life threatening in camp grounds above Rio Frio to Concan.
2. 23.00 ftDisastrous life threatening flooding from the headwaters to below Concan destroys anything in the flood plain. Homes are flooded below Leakey to below Rio Frio. Flow is up to 15 feet deep through campgrounds above Rio Frio to Concan washing autos, recreational vehicles, gear and campers downstream.
3. 21.00 ftLife threatening flooding through campgrounds below Rio Frio to Concan washes recreational vehicles, autos, gear, and campers downstream. Lowest homes are flooded below Leakey to below Rio Frio. Much of Garner State Park is flooded.
4. 19.00 ftDisastrous life threatening flooding rises rapidly over ten feet deep over portions of the banks and campgrounds near Rio Frio to Concan. Sleeping campers, autos, RV trailers, and gear are washed downstream.
5. 17.00 ftUp to near ten feet of turbulent flow smashes through campgrounds below Rio Frio to Concan. recreational vehicles, autos, and gear can easily be swept downstream. Lowest homes below Leakey to below Rio Frio are threatened. Residents in flood prone areas should prepare to evacuate as emergency officials assess the threat.
6. 15.00 ftMajor flooding increases very quickly to several feet deep over the Frio River banks of recreation camps near Rio Frio to near Concan. Sleeping campers, autos and recreational vehicles can be washed downstream. This is a life threatening level.
7. 14.00 ftFlow extends well into the flood plain below Rio Frio to Concan. Turbulent flow several feet deep in campgrounds is dangerous to campers and their autos, RVs, and camping gear. Numerous roads and low bridges are severely flooded and dangerous to auto traffic.
8. 12.00 ftModerate lowland flooding reaches camping areas near Rio Frio to above concan during recreation months threatening campers, autos, RV trailers, canoes and gear. Low roads and bridges are flooded and dangerous to auto traffic.
9. 11.00 ftMinor lowland flooding extends into low areas of resorts and camps below Rio Frio to Concan. Low roads and bridges in the flood plain are flooded and dangerous to auto traffic.
10. 9.00 ftFlow reaches lowest areas of camps above Rio Frio to Concan 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

• July 16, 2026: 19.96 ft
• October 16, 2018: 11.56 ft
• October 8, 2018: 14.36 ft
• May 24, 2015: 13.52 ft
• June 26, 2007: 18.47 ft
• July 2, 2002: 31.20 ft
• August 22, 1998: 25.50 ft
• June 22, 1997: 24.40 ft
• October 28, 1996: 21.59 ft
• September 16, 1991: 22.40 ft

• UpstreamFrio River at at Leakey
• DownstreamFrio River at Dry Frio near Uvalde
• Dry Frio River at Reagan Wells near Uvalde 23N
• Leona River at CR 429A near Uvalde
• Sabinal River at Sabinal
• Sabinal River at Utopia
• Sabinal River at Sabinal
• Nueces River at Laguna

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.