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.
Higher chance of a rise. 30% chance the lake is 1 ft0.3 m or more above today's level on Nov 9.
- Rain, past 7 days
- 0.0 in0 mm watershed average
- Rain forecast, next 7 days
- 0.4 in10 mm normal 1.1 in28 mm
Statistical estimate, not safety, boating, or water-quality advice. For ramps, closures and advisories, check the lake operator.
Map
Map of Addicks Reservoir, level gauge.
- Level gauge
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 | 71.321.73 | 73.522.39 | 79.724.30 |
| Nov 9 | 71.621.82 | 74.122.59 | 90.627.62 |
| Nov 25 | 70.121.37 | 72.622.14 | 88.727.04 |
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
- 4.95 ft1.51 m Assuming the level stays the same was off by 5.83 ft1.78 m
- Actual level inside our range
- 78% of 406 tests; the range is built to catch 8 in 10
- When we said a rise was possible (20–40%)
- 32% of those 146 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).
Nearby lakes
Closest lakes in a straight line, with today's level.
- Barker Reservoir2 mi3 km away · 69.9 ft21.32 m
- Lake Houston30 mi49 km away · 42.1 ft12.85 m · 98%
- Lake Conroe39 mi63 km away · 199.4 ft60.78 m · 93%
- Gibbons Creek Reservoir62 mi100 km away · 245.5 ft74.82 m · 86%
- Somerville Lake65 mi105 km away · 236.2 ft71.98 m · 87%
- Lake Livingston69 mi111 km away · 129.2 ft39.37 m · 91%
About Addicks Reservoir
Addicks Reservoir is a flood-control reservoir in west Houston, built by the U.S. Army Corps of Engineers and completed in 1948. Together with Barker Reservoir it holds back floodwater that would otherwise run down Buffalo Bayou through the city. Because it exists to hold back floodwater, its level can rise quickly after heavy rain and fall again as water is released.
- Full pool (conservation)
- 67.5 ft20.57 m
- Highest level since 2002
- 109.1 ft33.24 m, Aug 2017
- Lowest level since 2002
- 67.2 ft20.47 m, Jun 2020
Elevations are feetmeters above sea level (NAVD88).
Common questions
Is Addicks Reservoir full right now?
On Oct 26 it was 76.4 ft, 8.9 ft above full pool (67.5 ft).On Oct 26 it was 23.28 m, 2.71 m above full pool (20.57 m).
Is Addicks Reservoir going up or down?
The middle estimate for Nov 9 is down about 2.3 ft, with an 8 in 10 chance it ends between 71.6 ft and 90.6 ft. The chance it ends 1 ft or more higher than today is 30%. Heavy rain can change that quickly.The middle estimate for Nov 9 is down about 0.69 m, with an 8 in 10 chance it ends between 21.82 m and 27.62 m. The chance it ends 0.3 m or more higher than today is 30%. 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.