Frio River at Concan
Future / Actual / Minor
OWP 2.0 WWA Modal Title
01/11/2021, 10:04 PM UTC through 01/11/2021, 10:04 PM UTC
Sender
Sent
- Warning: no valid ratings curve available. Transformations to and from FEET/CFS/KCFS will not happen.
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Observed (OBS) 06/23/2025 7:00 PM CDTRecord: 34.4 ftCATEGORY STAGE 
Major Flooding 15 ft Moderate Flooding 12 ft Minor Flooding 11 ft Action 7 ft Reliability of the Forecast:
NOTE: 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.
National Water Model Hydrograph
Official NWS streamflow forecasts are produced by NWS hydrologic forecasters for river gauge locations using hydrologic models which are calibrated to that location. This process considers additional guidance and information, including local expertise and experience, to produce the best forecast possible. The NWM output provides supplemental guidance to NWS forecasters and should not be considered an official NWS river forecast.
Flood Impacts
- 25 - 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.
- 23 - 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.
- 21 - 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.
Gauge Info
| Coordinates | 29.4883, -99.7044 |
| RFC | WGRFC |
| State | TX |
| WFO | EWX |
| County | Uvalde |
| Data Provider(s) | |
| US Geological Survey | USGS--Water Resources of the United States |
| USGS | 08195000 |
Gauge Location
Recent Crests
| 1. | 11.56 ft | on 10-16-2018 |
| 2. | 14.36 ft | on 10-08-2018 |
| 3. | 13.52 ft | on 05-24-2015 |
| 4. | 18.47 ft | on 06-26-2007 |
| 5. | 31.20 ft | on 07-02-2002 |
Recent Crests
| 1. | 11.56 ft | on 10-16-2018 |
| 2. | 14.36 ft | on 10-08-2018 |
| 3. | 13.52 ft | on 05-24-2015 |
| 4. | 18.47 ft | on 06-26-2007 |
| 5. | 31.20 ft | on 07-02-2002 |
| 6. | 25.50 ft | on 08-22-1998 |
| 7. | 24.40 ft | on 06-22-1997 |
| 8. | 21.59 ft | on 10-28-1996 |
| 9. | 22.40 ft | on 09-16-1991 |
| 10. | 18.36 ft | on 05-29-1987 |
| 11. | 19.82 ft | on 06-16-1981 |
| 12. | 30.60 ft | on 09-16-1936 |
| 13. | 34.40 ft | on 07-01-1932 |
Historic Crests
| 1. | 34.40 ft | on 07-01-1932 |
| 2. | 31.20 ft | on 07-02-2002 |
| 3. | 30.60 ft | on 09-16-1936 |
| 4. | 25.50 ft | on 08-22-1998 |
| 5. | 24.40 ft | on 06-22-1997 |
Historic Crests
| 1. | 34.40 ft | on 07-01-1932 |
| 2. | 31.20 ft | on 07-02-2002 |
| 3. | 30.60 ft | on 09-16-1936 |
| 4. | 25.50 ft | on 08-22-1998 |
| 5. | 24.40 ft | on 06-22-1997 |
| 6. | 22.40 ft | on 09-16-1991 |
| 7. | 21.59 ft | on 10-28-1996 |
| 8. | 19.82 ft | on 06-16-1981 |
| 9. | 18.47 ft | on 06-26-2007 |
| 10. | 18.36 ft | on 05-29-1987 |
| 11. | 14.36 ft | on 10-08-2018 |
| 12. | 13.52 ft | on 05-24-2015 |
| 13. | 11.56 ft | on 10-16-2018 |
Vertical Datum Table
| type | NAVD88 |
|---|---|
| major Flooding | 1218.54 ft |
| moderate Flooding | 1215.54 ft |
| minor Flooding | 1214.54 ft |
| action | 1210.54 ft |
| Latest Value | 1206.91 ft |
| Gauge Zero | 1203.54 ft |
Gauge Photos
No Images Found
Collaborative Agencies
The National Weather Service prepares its forecasts and other services in collaboration with agencies like the US Geological Survey, US Bureau of Reclamation, US Army Corps of Engineers, Natural Resource Conservation Service, National Park Service, ALERT Users Group, Bureau of Indian Affairs, and many state and local emergency managers across the country. For details, please click here.