Highest crests on record
| Rank | Crest | Date |
|---|---|---|
| 1 | 1135.66 ft | 1974-09-22 |
| 2 | 1129.86 ft | 2010-07-06 |
Flood crests recorded at this gauge by the National Weather Service.
River stage
Lake Amistad, Rio Grande
- River level
- 1059.85 ft
- Status
- Below flood stage
- Action stage
- 1120.00 ft
- Flood stage
- 1120.00 ft
- Record crest
- 1135.66 ft
Last reported 2026-10-13 | NWS AMIT2
- Record crest
- 1135.66 ft
- Flood stage
- 1120.00 ft
- Moderate flood
- 1122.00 ft
- Major flood
- 1125.00 ft
- Crest date
- 1974-09-22
In brief
The Rio Grande at Lake Amistad, TX read 1059.85 ft on Oct 13, 2026, 60.15 ft below action stage.
Source: National Weather Service gauge AMIT2
Stage threshold profile
What happens at each level
- 1122.00 ft
(342.1 meters), The lake elevation is five feet above normal pool, and releases approach low sections of the road and lowest homes in the Vega Verde subdivision below Lake Amistad.
- 1123.00 ft
(342.4 meters), Pool elevation is six feet above normal, and releases flood the lowest sections of the road and approach homes in the Vega Verde subdivision below Amistad Dam.
- 1125.00 ft
(343.0 meters), The pool elevation is eight feet above noraml elevation and releases flood the roadthrough low areas of the Vega Verde subdivision below Amistad Dam. Several lowest homes flood severely, and much of the residential area is cut off.
- 1135.00 ft
(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.
- 1140.40 ft
(347.68 meters), Top of spillway - 5,249,661 acre-feet.
- 1145.08 ft
(349.1 meters), Maximum water surfce - 5,656,777 acre-feet.
Written by the local National Weather Service forecast office for this exact gauge.
Frequently asked questions
Is the Rio Grande flooding at Lake Amistad?
No. The Rio Grande at Lake Amistad is at 1059.85 ft, 60.15 ft below action stage.
What is the flood stage at Lake Amistad?
The National Weather Service sets action stage 1120 ft, minor flooding 1120 ft, moderate flooding 1122 ft and major flooding 1125 ft.
What is the highest the Rio Grande has been at Lake Amistad?
The highest crest on record is 1135.66 ft, on 1974-09-22.
Stage and flood information from the NOAA National Weather Service (gauge AMIT2); daily history from the U.S. Geological Survey (site 08450700). Last reading 2026-10-13. For flood safety decisions always follow official National Weather Service warnings.