Moss Lake water level today
On Oct 28, 2026, Moss Lake is at 714.54 ft, 97.9% full (0.46 ft below full pool). That is 5.8 points above normal for this date.
Source: Texas Water Development Board · storage 23,563 of 24,058 acre-ft · provisional data
Moss Lake percent full history
Percent full Normal range (10th–90th percentile, 1996–2025) Average
Moss Lake from space
The same area near the lowest and the highest level since 2016, on clear days. Compare the shoreline and the coves.
Imagery: NASA GIBS, Harmonized Landsat Sentinel-2 (HLS). Landsat 8/9 courtesy of NASA/USGS; contains modified Copernicus Sentinel data 2025. Black specks are cloud and shadow masks.
Records and key dates
- Record high
- 100.0%Nov 25, 2000
- Record low
- 72.0%Jan 31, 2004
- 12-month high
- 100.0%Oct 2, 2026
- 12-month low
- 88.2%Jan 23, 2026
- Last time full
- Oct 7, 2026
- Change in 1 year
- +1.46 ft+6.3 pts
About Moss Lake
- River basin
- Red
- Full pool (top of conservation pool)
- 715.00 ft
- Conservation capacity
- 24,058 acre-ft
- Surface area today
- 1,069 acres
- Dead pool elevation
- 666.00 ft
- Flood control reservoir
- No
- Data since
- Oct 1, 2000
Monthly average, last 10 years
Average percent full each month.
| Year | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2026 | 89% | 89% | 90% | 91% | 91% | 95% | 97% | 94% | 90% | 99% | — | — |
| 2025 | 99% | 99% | 99% | 100% | 100% | 100% | 98% | 96% | 94% | 92% | 90% | 90% |
| 2024 | 96% | 99% | 99% | 99% | 100% | 99% | 97% | 94% | 91% | 88% | 91% | 94% |
| 2023 | 88% | 90% | 98% | 100% | 99% | 99% | 97% | 93% | 90% | 89% | 90% | 91% |
| 2022 | 94% | 95% | 98% | 99% | 99% | 99% | 96% | 93% | 91% | 89% | 88% | 88% |
| 2021 | 99% | 99% | 99% | 99% | 100% | 100% | 100% | 98% | 96% | 95% | 95% | 95% |
| 2020 | 100% | 100% | 100% | 100% | 100% | 100% | 99% | 98% | 99% | 97% | 97% | 97% |
| 2019 | 100% | 100% | 100% | 100% | 100% | 100% | 99% | 97% | 98% | 97% | 98% | 99% |
| 2018 | 91% | 92% | 99% | 99% | 99% | 98% | 96% | 94% | 95% | 100% | 100% | 100% |
| 2017 | 96% | 99% | 99% | 99% | 98% | 99% | 98% | 98% | 97% | 95% | 93% | 92% |
Frequently asked questions
Is Moss Lake full?
Not quite. On Oct 28, 2026 Moss Lake was 97.9% full, 0.46 feet below its full pool elevation of 715.00 ft. It was last full on Oct 7, 2026.
What is the normal level of Moss Lake for this time of year?
Between 1996 and 2025, Moss Lake averaged 92.1% full around Oct 28, and 8 in 10 years it was between 83.9% and 99.2%. Today it is +5.8 percentage points above that average.
What is the lowest Moss Lake has been?
In the TWDB record, which starts in 2000, the lowest daily value was 72.0% on Jan 31, 2004. The highest was 100.0% on Nov 25, 2000.
How often is the Moss Lake water level updated?
TWDB publishes one reading per day for each reservoir. We check for new data every 2 hours and show the date of the reading next to the level. Recent values are provisional.
What does percent full mean?
It is the water stored in the conservation pool divided by the conservation capacity (24,058 acre-feet for Moss Lake). Water above the conservation pool is flood storage and is not counted, so a reservoir can show 100% while rising into its flood pool.