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
- 0.5 in14 mm watershed average
- Rain forecast, next 7 days
- 1.4 in36 mm normal 0.4 in9 mm
Statistical estimate, not safety, boating, or water-quality advice. For ramps, closures and advisories, check the lake operator.
Map
Map of O. H. Ivie Reservoir with the dam and 4 public boat ramps.
- Dam
- 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 | 1528.9466.02 | 1529.1466.07 | 1529.8466.29 |
| Nov 9 | 1528.8465.99 | 1529.2466.09 | 1529.8466.27 |
| Nov 25 | 1528.6465.91 | 1528.9466.02 | 1530.9466.61 |
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
- 0.32 ft0.10 m Assuming the level stays the same was off by 0.49 ft0.15 m
- Actual level inside our range
- 79% of 428 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.
- Hords Creek Lake24 mi38 km away · 1888.1 ft575.48 m · 45%
- Brady Creek Reservoir30 mi48 km away · 1740.5 ft530.50 m · 84%
- Lake Coleman39 mi62 km away · 1712.5 ft521.97 m · 77%
- Lake Brownwood45 mi73 km away · 1422.7 ft433.64 m · 89%
- Twin Buttes Reservoir52 mi84 km away · 1894.2 ft577.36 m · 4%
- Lake Abilene52 mi84 km away · 1990.8 ft606.81 m · 7%
About O. H. Ivie Reservoir
O. H. Ivie Reservoir is a large lake where the Colorado and Concho rivers meet, in Concho, Coleman and Runnels counties about 55 miles east of San Angelo. S. W. Freese Dam was completed around 1990, and the Colorado River Municipal Water District owns and runs the lake for water supply. It collects water from E. V. Spence upstream on the Colorado and from the San Angelo lakes on the Concho.
- Full pool (conservation)
- 1551.5 ft472.90 m
- Highest level since 1997
- 1552.5 ft473.21 m, Jun 1997
- Lowest level since 1997
- 1502.5 ft457.97 m, May 2014
- Surface area at normal pool
- 19,149 acres7,749 ha
- Conservation storage
- 554,340 acre-feet684 million m³
- Dam
- Simon Freese Dam, 1989
- River or creek
- Colorado River
- County
- Coleman
- Owner
- Colorado River Municipal Water District
Elevations are feetmeters above sea level (NGVD29).
Common questions
Is O. H. Ivie Reservoir full right now?
On Oct 26 it was 1529.0 ft, 22.5 ft below full pool (1551.5 ft), holding 41% of its conservation storage.On Oct 26 it was 466.05 m, 6.85 m below full pool (472.90 m), holding 41% of its conservation storage.
Is O. H. Ivie 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 1528.8 ft and 1529.8 ft. The chance it ends 1 ft or more higher than today is 10%. Heavy rain can change that quickly.The middle estimate for Nov 9 is up about 0.05 m, with an 8 in 10 chance it ends between 465.99 m and 466.27 m. The chance it ends 0.3 m or more higher than today is 10%. 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.