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 2630.6 ft192.22 m−0.1 ft−0.02 m from todayLikely 630.6192.20 to 630.8 ft192.27 mChance of ending 1 ft0.3 m or more higher: under 5%

In 2 weeks · by Nov 9630.6 ft192.21 m−0.1 ft−0.03 m from todayLikely 630.5192.18 to 631.0 ft192.32 mChance of ending 1 ft0.3 m or more higher: under 5%

In a month · by Nov 25630.6 ft192.20 m−0.1 ft−0.04 m from todayLikely 630.4192.14 to 632.4 ft192.74 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 in0 mm watershed average
Rain forecast, next 7 days: 0.7 in18 mm normal 0.9 in23 mm

Statistical estimate, not safety, boating, or water-quality advice. For ramps, closures and advisories, check the U.S. Army Corps of Engineers.

Map

Map of Ray Roberts Lake 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	630.6192.20	630.6192.22	630.8192.27
Nov 9	630.5192.18	630.6192.21	631.0192.32
Nov 25	630.4192.14	630.6192.20	632.4192.74

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: 0.35 ft0.11 m Assuming the level stays the same was off by 0.48 ft0.15 m
Actual level inside our range: 75% of 432 tests; the range is built to catch 8 in 10
When we said a rise was possible (20–40%): 22% of those 32 times it ended 1 ft0.3 m or more higher

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

Lewisville Lake518.0 ft157.87 m · 82%

Nearby lakes

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

About Ray Roberts Lake

Ray Roberts Lake is a U.S. Army Corps of Engineers reservoir on the Elm Fork of the Trinity River, about 10 miles north of Denton between Pilot Point and Sanger. The dam was completed in the 1980s for flood control and water supply, and Ray Roberts Lake State Park is on its shore. Lewisville Lake is the next lake downstream.

More: Wikipedia · Texas Water Development Board · U.S. Army Corps of Engineers

Full pool (conservation): 632.5 ft192.79 m
Highest level since 1989: 644.5 ft196.43 m, May 1990
Lowest level since 1989: 615.4 ft187.58 m, Oct 2000
Surface area at normal pool: 29,350 acres11,878 ha
Conservation storage: 788,167 acre-feet972 million m³
Dam: Ray Roberts Dam, 1986
River or creek: Elm Fork of The Trinity River
County: Denton
Owner: USACE - Fort Worth District

Elevations are feetmeters above sea level (NGVD29).

Common questions

Is Ray Roberts Lake full right now?

On Oct 26 it was 630.7 ft, 1.8 ft below full pool (632.5 ft), holding 94% of its conservation storage.On Oct 26 it was 192.24 m, 0.55 m below full pool (192.79 m), holding 94% of its conservation storage.

Is Ray Roberts Lake going up or down?

The middle estimate for Nov 9 is about steady, with an 8 in 10 chance it ends between 630.5 ft and 631.0 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 192.18 m and 192.32 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.