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.

Next week · by Nov 21502.8 ft458.07 m−0.1 ft−0.02 m from todayLikely 1502.8458.05 to 1503.0 ft458.11 mChance of ending 1 ft0.3 m or more higher: under 5%

In 2 weeks · by Nov 91502.8 ft458.04 m−0.1 ft−0.04 m from todayLikely 1502.7458.01 to 1503.1 ft458.14 mChance of ending 1 ft0.3 m or more higher: under 5%

In a month · by Nov 251502.6 ft458.00 m−0.3 ft−0.09 m from todayLikely 1502.5457.96 to 1503.9 ft458.39 mChance of ending 1 ft0.3 m or more higher: 10%

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 in1 mm watershed average
Rain forecast, next 7 days: 0.7 in18 mm normal 0.6 in17 mm

Statistical estimate, not safety, boating, or water-quality advice. For ramps, closures and advisories, check the lake operator.

Map

Map of Lake Cisco with the dam, level gauge and 2 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	1502.8458.05	1502.8458.07	1503.0458.11
Nov 9	1502.7458.01	1502.8458.04	1503.1458.14
Nov 25	1502.5457.96	1502.6458.00	1503.9458.39

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: 0.16 ft0.05 m Assuming the level stays the same was off by 0.26 ft0.08 m
Actual level inside our range: 82% of 432 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

Hubbard Creek Reservoir1166.0 ft355.38 m · 36%

Nearby lakes

Closest lakes in a straight line, with today's level.

About Lake Cisco

Lake Cisco is a city water-supply lake on Sandy Creek just north of Cisco in Eastland County, formed by Williamson Dam in 1923. It is owned by the City of Cisco. Its outflow drains toward Hubbard Creek Reservoir in the Brazos basin.

More: Wikipedia · Texas Water Development Board

Full pool (conservation): 1522.5 ft464.05 m
Highest level since 1999: 1524.1 ft464.55 m, Jun 2016
Lowest level since 1999: 1496.2 ft456.04 m, Jul 2013
Surface area at normal pool: 1,817 acres735 ha
Conservation storage: 29,003 acre-feet36 million m³
Dam: Williamson Dam, 1923
River or creek: Sandy Creek
County: Eastland
Owner: City of Cisco

Elevations are feetmeters above sea level (NGVD29).

Common questions

Is Lake Cisco full right now?

On Oct 26 it was 1502.9 ft, 19.6 ft below full pool (1522.5 ft), holding 42% of its conservation storage.On Oct 26 it was 458.08 m, 5.96 m below full pool (464.05 m), holding 42% of its conservation storage.

Is Lake Cisco going up or down?

The middle estimate for Nov 9 is about steady, with an 8 in 10 chance it ends between 1502.7 ft and 1503.1 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 about steady, with an 8 in 10 chance it ends between 458.01 m and 458.14 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.