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.
Higher chance of a rise. 30% chance the lake is 1 ft0.3 m or more above today's level on Nov 9.
- Rain, past 7 days
- 0.7 in17 mm watershed average
- Rain forecast, next 7 days
- 1.4 in36 mm normal 0.3 in7 mm
Statistical estimate, not safety, boating, or water-quality advice. For ramps, closures and advisories, check the lake operator.
Map
Map of E. V. Spence Reservoir with the dam, level gauge and 6 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 | 1842.0561.43 | 1842.1561.48 | 1843.2561.79 |
| Nov 9 | 1841.9561.40 | 1842.3561.52 | 1845.0562.35 |
| Nov 25 | 1841.6561.32 | 1842.2561.49 | 1846.3562.74 |
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
- 0.26 ft0.08 m Assuming the level stays the same was off by 0.38 ft0.12 m
- Actual level inside our range
- 87% of 430 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.
Nearby lakes
Closest lakes in a straight line, with today's level.
- Oak Creek Reservoir18 mi30 km away · 1973.2 ft601.44 m · 13%
- O. C. Fisher Lake27 mi44 km away · 1871.8 ft570.53 m · 10%
- Lake Nasworthy34 mi55 km away · 1871.7 ft570.51 m · 86%
- Twin Buttes Reservoir34 mi55 km away · 1894.2 ft577.36 m · 4%
- Lake Sweetwater41 mi65 km away · 2090.2 ft637.10 m · 16%
- Lake Abilene44 mi71 km away · 1990.8 ft606.81 m · 7%
About E. V. Spence Reservoir
E. V. Spence Reservoir is on the Colorado River just upstream of Robert Lee in Coke County, formed by Robert Lee Dam in 1969. The Colorado River Municipal Water District manages it for water supply. Lake J. B. Thomas, Lake Colorado City and Champion Creek Reservoir are upstream, and O. H. Ivie Reservoir is downstream.
- Full pool (conservation)
- 1898.0 ft578.51 m
- Highest level since 1997
- 1865.2 ft568.51 m, Jun 2019
- Lowest level since 1997
- 1810.1 ft551.71 m, Sep 2012
- Surface area at normal pool
- 15,100 acres6,111 ha
- Conservation storage
- 517,272 acre-feet638 million m³
- Dam
- Robert Lee Dam, 1969
- River or creek
- Colorado River
- County
- Coke
- Owner
- Colorado River Municipal Water District
Elevations are feetmeters above sea level (NGVD29).
Common questions
Is E. V. Spence Reservoir full right now?
On Oct 26 it was 1842.0 ft, 56.0 ft below full pool (1898.0 ft), holding 9% of its conservation storage.On Oct 26 it was 561.45 m, 17.06 m below full pool (578.51 m), holding 9% of its conservation storage.
Is E. V. Spence Reservoir going up or down?
The middle estimate for Nov 9 is up about 0.2 ft, with an 8 in 10 chance it ends between 1841.9 ft and 1845.0 ft. The chance it ends 1 ft or more higher than today is 30%. Heavy rain can change that quickly.The middle estimate for Nov 9 is up about 0.07 m, with an 8 in 10 chance it ends between 561.40 m and 562.35 m. The chance it ends 0.3 m or more higher than today is 30%. 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.