Outlook
Middle estimate, with the range the level has an 8 in 10 chance of landing in. The bars share one scale: change from today.
Rises are harder to call. Heavy rain in the watershed can push the lake above these ranges within days.
- Rain, past 7 days
- 0.0 in0 mm watershed average
- Rain forecast, next 7 days
- 0.7 in17 mm normal 0.5 in12 mm
Statistical estimate, not safety, boating, or water-quality advice. For ramps, closures and advisories, check the lake operator.
Map
Map of Choke Canyon Reservoir with the dam, level gauge and 5 public boat ramps.
- Dam
- Level gauge
- Public boat ramp
Ramp locations from Texas Parks and Wildlife. Whether a ramp is open depends on the lake level; check the operator.
Level and outlook
FeetMeters above sea level
- Measured
- Middle estimate
- 8 in 10 range
- Full pool
Show outlook as a table
| Date | Low end | Middle | High end |
|---|---|---|---|
| Nov 2 | 190.458.02 | 190.458.05 | 190.558.08 |
| Nov 9 | 190.257.99 | 190.458.02 | 190.558.08 |
| Nov 25 | 189.957.89 | 190.157.95 | 190.758.11 |
How well this outlook has done here
We tested the 2-week outlook on past years at this lake, as if made once a week with only what was known that day.
- On average it was off by
- 0.18 ft0.05 m Assuming the level stays the same was off by 0.32 ft0.10 m
- Actual level inside our range
- 82% of 426 tests; the range is built to catch 8 in 10
The rise chance uses the same threshold for every lake: 1 ft (0.3048 m).
Connected lakes
Water from upstream lakes flows into this one; water released here flows on downstream.
Downstream
Nearby lakes
Closest lakes in a straight line, with today's level.
- Coleto Creek Reservoir68 mi109 km away · 94.6 ft28.85 m · 75%
- Medina Lake84 mi135 km away · 1019.3 ft310.69 m · 27%
- Canyon Lake96 mi154 km away · 907.4 ft276.57 m · 97%
- Lake Texana105 mi169 km away · 41.3 ft12.59 m · 84%
- Lake Austin130 mi208 km away · 492.3 ft150.04 m · 96%
- Lake Travis133 mi215 km away · 677.2 ft206.42 m · 94%
About Choke Canyon Reservoir
Choke Canyon Reservoir is on the Frio River near Three Rivers in South Texas, completed in 1982. The dam is owned by the U.S. Bureau of Reclamation and the lake is managed by the City of Corpus Christi as part of its water supply. Water released from Choke Canyon flows on to Lake Corpus Christi.
- Full pool (conservation)
- 220.5 ft67.21 m
- Highest level since 1999
- 223.5 ft68.11 m, Sep 2002
- Lowest level since 1999
- 178.2 ft54.33 m, May 2026
- Surface area at normal pool
- 25,733 acres10,414 ha
- Conservation storage
- 662,820 acre-feet818 million m³
- Dam
- Choke Canyon Dam, 1982
- River or creek
- Frio River
- County
- Live Oak
- Owner
- Bureau of Reclamation
Elevations are feetmeters above sea level (NGVD29).
Common questions
Is Choke Canyon Reservoir full right now?
On Oct 26 it was 190.5 ft, 30.0 ft below full pool (220.5 ft), holding 21% of its conservation storage.On Oct 26 it was 58.08 m, 9.13 m below full pool (67.21 m), holding 21% of its conservation storage.
Is Choke Canyon Reservoir going up or down?
The middle estimate for Nov 9 is down about 0.2 ft, with an 8 in 10 chance it ends between 190.2 ft and 190.5 ft. The chance it ends 1 ft or more higher than today is under 5%. Heavy rain can change that quickly.The middle estimate for Nov 9 is down about 0.05 m, with an 8 in 10 chance it ends between 57.99 m and 58.08 m. The chance it ends 0.3 m or more higher than today is under 5%. Heavy rain can change that quickly.
Where does this data come from?
Daily levels come from the Texas Water Development Board and lake operators. The outlook is our own statistical model, using recent levels and forecast rain over the watershed.