Rio Grande at Lake Amistad
Future / Actual / Minor
OWP 2.0 WWA Modal Title
01/11/2021, 10:04 PM UTC through 01/11/2021, 10:04 PM UTC
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Sent
- Warning: no valid ratings curve available. Transformations to and from FEET/CFS/KCFS will not happen.
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Observed (OBS) 04/04/2025 2:15 AM CDTNormal Pool: 1117 ftRecord: 1135.7 ftCATEGORY STAGE 
Major Flooding 1125 ft Moderate Flooding 1122 ft Minor Flooding 1120 ft Action 1120 ft Reliability of the Forecast:
NOTE: Forecasts are not available. Only observed stages are available for this point.
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
- 1145.08 - (349.1 meters), Maximum water surfce - 5,656,777 acre-feet.
- 1140.4 - (347.68 meters), Top of spillway - 5,249,661 acre-feet.
- 1135 - (346.0 meters), The lake elevation is thirteen feet into the flood pool. Disastrous flooding below Lake Amistad washes lowest mobile homes downstream. Disastrous flooding in the Vega Verde subdivision reaches the roofs of lowest homes and is a life threatening event.
Gauge Info
| Coordinates | 29.4502, -101.059 |
| RFC | WGRFC |
| State | TX |
| WFO | EWX |
| County | Val Verde |
| Data Provider(s) | |
| US Geological Survey | USGS--Water Resources of the United States |
| USGS | 08450700 |
Gauge Location
Recent Crests
| 1. | 1129.86 ft | on 07-06-2010 |
| 2. | 1125.30 ft | on 10-05-1991 |
| 3. | 1135.66 ft | on 09-22-1974 |
Recent Crests
| 1. | 1129.86 ft | on 07-06-2010 |
| 2. | 1125.30 ft | on 10-05-1991 |
| 3. | 1135.66 ft | on 09-22-1974 |
Historic Crests
| 1. | 1135.66 ft | on 09-22-1974 |
| 2. | 1129.86 ft | on 07-06-2010 |
| 3. | 1125.30 ft | on 10-05-1991 |
Historic Crests
| 1. | 1135.66 ft | on 09-22-1974 |
| 2. | 1129.86 ft | on 07-06-2010 |
| 3. | 1125.30 ft | on 10-05-1991 |
Gauge Photos
No Images Found
Probability Information
No Images Available
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.