Frio River level at Concan
Texas · Tubing & floating
Measured at USGS 08195000 — Frio Rv at Concan, TX · NWS forecast point CNCT2
Reading taken · as of 18 min ago
Up and moving — a faster float than usual
At 79 CFS, this gauge is running 184% of normal for mid-September — above the 43 CFS median USGS has recorded for this date across 100 years of record (1924–2026).
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Flood stages at Concan
National Weather Service categories for gauge CNCT2, WFO EWX. Impact wording is the NWS's own, verbatim.
-
Major flood 15.0 ft
- 15.0 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.
- 17.0 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.
- 19.0 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.
- 21.0 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.
- 23.0 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.
- 25.0 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.
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Moderate flood 12.0 ft
- 12.0 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.
- 14.0 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.
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Minor flood 11.0 ft
- 11.0 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.
-
Action 7.0 ft
- 9.0 ft Flow reaches lowest areas of camps above Rio Frio to Concan with no significant damage.
- Right now 3.74 ft
Flow history at Concan
Daily values from USGS 08195000, updated every 15 to 60 minutes; NWS forecast for CNCT2 reissued through the day. Provisional.
Highest crests on record at Concan
12 on record
| Stage | Flow | Date |
|---|---|---|
| 34.40 ft | 162,000 CFS | Jul 1, 1932 |
| 31.20 ft | — | Jul 2, 2002 |
| 30.60 ft | 119,000 CFS | Sep 16, 1936 |
| 29.40 ft | 106,000 CFS | Jun 14, 1935 |
| 28.80 ft | — | Sep 18, 1923 |
| 25.50 ft | 67,680 CFS | Aug 22, 1998 |
| 24.40 ft | 61,000 CFS | Jun 22, 1997 |
| 22.40 ft | 50,700 CFS | Sep 16, 1991 |
| 21.59 ft | 47,500 CFS | Oct 28, 1996 |
| 19.96 ft | — | Jul 16, 2026 |
Crests published by the National Weather Service.
About Frio River at Concan
In Texas — the reading paddlers, anglers and outfitters here check before committing to a shuttle. Garner State Park; "is the Frio running" is a seasonal search.
Frio River at Concan — common questions
3 questions
Does rain upstream change Frio River at Concan quickly?
Yes. It is free-flowing, so rain upstream moves it directly. Several feet in a few hours is normal after a heavy storm.
Is Frio River at Concan high or low for this time of year?
The USGS median flow for mid-September here is 43 CFS, from 100 years of record (1924–2026). Today is 184% of it. The comparison is what makes the raw number mean anything: the same reading is a drought on one river and a flood on another.
How often does this reading update?
USGS transmits from gauge 08195000 every 15 to 60 minutes, and the National Weather Service reissues the flood forecast for CNCT2 a few times a day — more often when the river is rising. This page refreshes from both when you open it. The timestamp is in the gauge's local time.