River stage
Concan, Frio River
- River level
- 3.69 ft
- Status
- Below flood stage
- 7-day change
- -0.02 ft
- Recent high
- 13.52 ft
- Recent low
- 3.38 ft
Last reported 2026-10-13 | NWS CNCT2
- 30-day change
- -0.03 ft
- Average
- 4.04 ft
- Readings
- 122
- Data span
- 122 days
- Record crest
- 34.40 ft
In brief
The Frio River at Concan, TX read 3.69 ft on Oct 13, 2026, 3.31 ft below action stage. That is 0.03 ft lower than 30 days earlier.
Source: National Weather Service gauge CNCT2
Water 79 °F (26 °C)
River level timeline
Stage threshold profile
Highest crests on record
| Rank | Crest | Date |
|---|---|---|
| 1 | 34.40 ft | 1932-07-01 |
| 2 | 31.20 ft | 2002-07-02 |
| 3 | 30.60 ft | 1936-09-16 |
| 4 | 29.40 ft | 1935-06-14 |
| 5 | 28.80 ft | 1923-09-18 |
| 6 | 25.50 ft | 1998-08-22 |
| 7 | 24.40 ft | 1997-06-22 |
| 8 | 22.40 ft | 1991-09-16 |
Flood crests recorded at this gauge by the National Weather Service.
What happens at each level
- 9.00 ft
Flow reaches lowest areas of camps above Rio Frio to Concan with no significant damage.
- 11.00 ft
Minor 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.
- 12.00 ft
Moderate 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.
- 14.00 ft
Flow 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.
- 15.00 ft
Major 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.
- 17.00 ft
Up 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.
- 19.00 ft
Disastrous 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.
- 21.00 ft
Life 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.
- 23.00 ft
Disastrous 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.
- 25.00 ft
Disastrous 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.
Written by the local National Weather Service forecast office for this exact gauge.
Frequently asked questions
Is the Frio River flooding at Concan?
No. The Frio River at Concan is at 3.69 ft, 3.31 ft below action stage.
What is the flood stage at Concan?
The National Weather Service sets action stage 7 ft, minor flooding 11 ft, moderate flooding 12 ft and major flooding 15 ft.
What is the highest the Frio River has been at Concan?
The highest crest on record is 34.4 ft, on 1932-07-01.
Is the Frio River high or low right now at Concan?
At 3.69 ft it is higher than 33% of readings over the last 122 days.
How warm is the water at Concan, Frio River?
The water temperature at Concan, Frio River is 79 °F (26.1 °C), measured 7:30 pm by USGS. It has risen 0.6 °F in the last 24 hours.
Stage and flood information from the NOAA National Weather Service (gauge CNCT2); daily history from the U.S. Geological Survey (site 08195000). Last reading 2026-10-13. For flood safety decisions always follow official National Weather Service warnings.