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
- 0.0 in0 mm watershed average
- Rain forecast, next 7 days
- 0.4 in11 mm normal 1.1 in29 mm
Statistical estimate, not safety, boating, or water-quality advice. For ramps, closures and advisories, check the lake operator.
Map
Map of Lake Conroe with the dam, level gauge and 16 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 | 199.360.74 | 199.460.77 | 199.560.81 |
| Nov 9 | 199.260.72 | 199.360.76 | 199.660.84 |
| Nov 25 | 199.060.66 | 199.460.77 | 200.160.99 |
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
- 0.23 ft0.07 m Assuming the level stays the same was off by 0.30 ft0.09 m
- Actual level inside our range
- 72% 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
Nearby lakes
Closest lakes in a straight line, with today's level.
- Gibbons Creek Reservoir35 mi56 km away · 245.5 ft74.82 m · 86%
- Lake Livingston38 mi61 km away · 129.2 ft39.37 m · 91%
- Addicks Reservoir39 mi63 km away · 76.4 ft23.28 m
- Barker Reservoir41 mi66 km away · 69.9 ft21.32 m
- Somerville Lake58 mi93 km away · 236.2 ft71.98 m · 87%
- Houston County Lake72 mi117 km away · 259.1 ft78.98 m · 93%
About Lake Conroe
Lake Conroe is a large reservoir on the West Fork of the San Jacinto River in Montgomery and Walker counties, just west of Interstate 45. The San Jacinto River Authority completed Conroe Dam in 1973 for water supply. Water released from Conroe flows down to Lake Houston.
- Full pool (conservation)
- 201.0 ft61.26 m
- Highest level since 1996
- 205.9 ft62.76 m, Aug 2017
- Lowest level since 1996
- 192.7 ft58.74 m, Dec 2011
- Surface area at normal pool
- 20,118 acres8,141 ha
- Conservation storage
- 417,577 acre-feet515 million m³
- Dam
- Conroe Dam, 1973
- River or creek
- West Fork San Jacinto River
- County
- Montgomery
- Owner
- San Jacinto River Authority
Elevations are feetmeters above sea level (NGVD29).
Common questions
Is Lake Conroe full right now?
On Oct 26 it was 199.4 ft, 1.6 ft below full pool (201.0 ft), holding 93% of its conservation storage.On Oct 26 it was 60.78 m, 0.48 m below full pool (61.26 m), holding 93% of its conservation storage.
Is Lake Conroe going up or down?
The middle estimate for Nov 9 is about steady, with an 8 in 10 chance it ends between 199.2 ft and 199.6 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 60.72 m and 60.84 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.