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 2334.5 ft101.96 m−0.1 ft−0.03 m from todayLikely 334.5101.95 to 334.6 ft101.99 mChance of ending 1 ft0.3 m or more higher: under 5%

In 2 weeks · by Nov 9334.5 ft101.94 m−0.2 ft−0.05 m from todayLikely 334.3101.91 to 334.7 ft102.02 mChance of ending 1 ft0.3 m or more higher: under 5%

In a month · by Nov 25334.4 ft101.93 m−0.2 ft−0.06 m from todayLikely 334.1101.84 to 334.9 ft102.09 mChance of ending 1 ft0.3 m or more higher: 5%

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: 0.5 in13 mm normal 1.0 in26 mm

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

Map

Map of Lake Bob Sandlin with the dam, level gauge and 10 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	334.5101.95	334.5101.96	334.6101.99
Nov 9	334.3101.91	334.5101.94	334.7102.02
Nov 25	334.1101.84	334.4101.93	334.9102.09

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 0.22 ft0.07 m
Actual level inside our range: 83% 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.

Upstream

Downstream

Lake O' the Pines227.1 ft69.21 m · 90%

Nearby lakes

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

About Lake Bob Sandlin

Lake Bob Sandlin is a water-supply reservoir on Big Cypress Creek in Titus County, formed by Fort Sherman Dam in 1978. Lake Cypress Springs and Monticello Reservoir lie just upstream, and water leaving the lake continues down Big Cypress Creek to Lake O’ the Pines.

More: Texas Water Development Board

Full pool (conservation): 337.5 ft102.87 m
Highest level since 1987: 339.4 ft103.46 m, Dec 2015
Lowest level since 1987: 326.7 ft99.58 m, Dec 2006
Surface area at normal pool: 9,004 acres3,644 ha
Conservation storage: 192,417 acre-feet237 million m³
Dam: Fort Sherman Dam, 1978
River or creek: Big Cypress Creek
County: Titus
Owner: Titus County FWSD

Elevations are feetmeters above sea level (NGVD29).

Common questions

Is Lake Bob Sandlin full right now?

On Oct 26 it was 334.6 ft, 2.9 ft below full pool (337.5 ft), holding 87% of its conservation storage.On Oct 26 it was 101.99 m, 0.88 m below full pool (102.87 m), holding 87% of its conservation storage.

Is Lake Bob Sandlin 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 334.3 ft and 334.7 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 101.91 m and 102.02 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.