Wister Lake Water Level
Water level now
Below normal474.75ft
−3.25 ft vs normal pool (478.00) · −3.01 ft vs typical for Oct 18
Reading taken Oct 18, 2026, 7:00 AM CDT
Source: U.S. Army Corps of Engineers, Tulsa District (provisional data)
Level in feet above sea level (NGVD 29)
Daily levelNormal poolTypical for the date (2016 to last year)
Provisional data from USACE, as reported at Oct 18, 2026, 7:00 AM CDT. Readings can be delayed or wrong. Not for navigation, flood or safety decisions; follow local authorities and posted signs.
About Wister Lake
Wister Lake is 3.25 ft below normal pool, as of Oct 18, 2026, 7:00 AM CDT. The level on this page is reported by the U.S. Army Corps of Engineers, Tulsa District near Wister, OK, and compared with normal pool (the top of the conservation pool, 478.00 ft above sea level (NGVD 29)) and with the typical level for this date.
Since January 2016 the daily level has ranged from 472.23 ft (Oct 30, 2024) to 505.92 ft (Dec 31, 2015). The highest pool on record listed by the Corps of Engineers is 508.40 ft.
Over those years the lake has usually been highest in May and lowest in October; in the past 365 days it was at or above normal pool on 59% of days.
Wister Lake by the numbers
| Normal pool (top of conservation) | 478.00 |
|---|---|
| Top of flood pool | 502.50 |
| Pool of record (USACE) | 508.40 |
| Highest since 2016 | 505.92 (Dec 31, 2015) |
| Lowest since 2016 | 472.23 (Oct 30, 2024) |
| Typical for Oct 18 | 477.76 |
| Oct 18, 2025 | 475.31 |
| Conservation storage now | 32,242 acre-ft |
Typical level by month
| Month | Median | vs normal | Low | High |
|---|---|---|---|---|
| January | 479.42 | +1.42 ft | 476.86 | 505.58 |
| February | 479.09 | +1.09 ft | 477.34 | 500.19 |
| March | 479.54 | +1.54 ft | 477.49 | 501.30 |
| April | 479.43 | +1.43 ft | 477.31 | 494.30 |
| May | 481.98 | +3.98 ft | 478.02 | 496.81 |
| June | 479.16 | +1.16 ft | 477.49 | 503.40 |
| July | 478.21 | +0.21 ft | 476.93 | 502.24 |
| August | 478.41 | +0.41 ft | 476.13 | 485.59 |
| September | 477.83 | −0.17 ft | 474.22 | 495.18 |
| October | 477.72 | −0.28 ft | 472.23 | 483.06 |
| November | 478.37 | +0.37 ft | 472.23 | 485.08 |
| December | 478.61 | +0.61 ft | 476.57 | 505.92 |
Highs and lows by year
| Year | High | Date | Low | Date |
|---|---|---|---|---|
| 2026 (so far) | 486.32 | Jun 16 | 474.75 | Oct 18 |
| 2025 | 496.81 | May 29 | 474.92 | Oct 24 |
| 2024 | 486.99 | May 9 | 472.23 | Oct 30 |
| 2023 | 493.20 | Mar 6 | 476.53 | Sep 20 |
| 2022 | 492.01 | May 8 | 474.60 | Oct 24 |
| 2021 | 494.75 | May 30 | 475.25 | Oct 13 |
| 2020 | 496.74 | May 29 | 476.93 | Aug 7 |
| 2019 | 503.40 | Jun 27 | 477.19 | Oct 6 |
| 2018 | 501.30 | Mar 2 | 477.83 | Sep 20 |
| 2017 | 483.84 | Jun 6 | 476.86 | Jan 13 |
| 2016 | 505.58 | Jan 1 | 477.03 | Dec 31 |
Weather at the dam, next 3 days
- Today: Sunny, wind 0 mph 71°F
- Tonight: Mostly Clear, wind 0 mph 43°F
- Monday: Sunny, wind 0 mph 76°F
- Monday Night: Mostly Clear, wind 0 mph 46°F
- Tuesday: Sunny, wind 0 mph 79°F
- Tuesday Night: Mostly Clear, wind 0 to 5 mph E48°F
Forecast: National Weather Service, issued Oct 18, 2026, 7:50 AM CDT. Conditions on the water can change quickly.
Questions about Wister Lake
- What is the normal pool level of Wister Lake?
- 478.00 ft above sea level (NGVD 29). This is the top of the conservation pool as listed by the Corps of Engineers; water above it, up to the top of the flood pool at 502.50 ft, is flood storage that the Corps releases over time.
- Is Wister Lake full right now?
- As of Oct 18, 2026, 7:00 AM CDT, the lake was 3.25 ft below normal pool.
- What is the lowest level Wister Lake has reached recently?
- In our daily record since January 2016, the lowest was 472.23 ft on Oct 30, 2024, 5.77 ft below normal pool.
- How often is this page updated?
- We check the Corps of Engineers every hour and show each reading with its own time. If no new reading arrives for 6 hours, the page says so instead of showing an old value as current. See how we calculate.