Copan Lake Water Level
Water level now
Below normal709.02ft
−0.98 ft vs normal pool (710.00) · −0.45 ft vs typical for Oct 18
Reading taken Oct 18, 2026, 8:00 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, 8:00 AM CDT. Readings can be delayed or wrong. Not for navigation, flood or safety decisions; follow local authorities and posted signs.
About Copan Lake
Copan Lake is 0.98 ft below normal pool, as of Oct 18, 2026, 8:00 AM CDT. The level on this page is reported by the U.S. Army Corps of Engineers, Tulsa District near Copan, OK, and compared with normal pool (the top of the conservation pool, 710.00 ft above sea level (NGVD 29)) and with the typical level for this date.
Since January 2016 the daily level has ranged from 702.24 ft (Dec 21, 2023) to 732.42 ft (May 26, 2019). The highest pool on record listed by the Corps of Engineers is 735.35 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 81% of days.
Copan Lake by the numbers
| Normal pool (top of conservation) | 710.00 |
|---|---|
| Top of flood pool | 732.00 |
| Pool of record (USACE) | 735.35 |
| Highest since 2016 | 732.42 (May 26, 2019) |
| Lowest since 2016 | 702.24 (Dec 21, 2023) |
| Typical for Oct 18 | 709.47 |
| Oct 18, 2025 | 710.38 |
| Conservation storage now | 30,646 acre-ft |
Typical level by month
| Month | Median | vs normal | Low | High |
|---|---|---|---|---|
| January | 709.92 | −0.08 ft | 702.30 | 715.74 |
| February | 710.01 | +0.01 ft | 703.28 | 714.16 |
| March | 710.22 | +0.22 ft | 706.17 | 719.13 |
| April | 710.26 | +0.26 ft | 705.57 | 719.05 |
| May | 712.04 | +2.04 ft | 705.34 | 732.42 |
| June | 710.61 | +0.61 ft | 705.12 | 731.50 |
| July | 710.15 | +0.15 ft | 704.60 | 729.24 |
| August | 710.11 | +0.11 ft | 703.92 | 717.50 |
| September | 709.48 | −0.52 ft | 703.16 | 712.11 |
| October | 709.46 | −0.54 ft | 702.65 | 713.88 |
| November | 709.57 | −0.43 ft | 702.38 | 713.43 |
| December | 710.33 | +0.33 ft | 702.24 | 714.61 |
Highs and lows by year
| Year | High | Date | Low | Date |
|---|---|---|---|---|
| 2026 (so far) | 721.74 | Jun 29 | 708.79 | Oct 12 |
| 2025 | 725.76 | Jul 2 | 710.01 | Feb 14 |
| 2024 | 715.68 | May 10 | 702.30 | Jan 3 |
| 2023 | 707.06 | Jan 1 | 702.24 | Dec 21 |
| 2022 | 718.68 | May 9 | 707.03 | Dec 31 |
| 2021 | 718.44 | Mar 19 | 708.87 | Dec 15 |
| 2020 | 719.13 | Mar 29 | 709.47 | Oct 22 |
| 2019 | 732.42 | May 26 | 710.02 | Apr 29 |
| 2018 | 713.88 | Oct 13 | 708.85 | Feb 15 |
| 2017 | 723.23 | May 20 | 708.04 | Aug 3 |
| 2016 | 715.74 | Jan 8 | 708.85 | Aug 28 |
Weather at the dam, next 3 days
- Today: Sunny, wind 5 to 10 mph S68°F
- Tonight: Mostly Clear, wind 0 to 10 mph SE43°F
- Monday: Sunny, wind 0 to 10 mph S71°F
- Monday Night: Partly Cloudy, wind 0 to 5 mph SE46°F
- Tuesday: Mostly Sunny, wind 0 to 5 mph SE74°F
- Tuesday Night: Mostly Clear, wind 0 to 5 mph SE51°F
Forecast: National Weather Service, issued Oct 18, 2026, 7:50 AM CDT. Conditions on the water can change quickly.
Questions about Copan Lake
- What is the normal pool level of Copan Lake?
- 710.00 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 732.00 ft, is flood storage that the Corps releases over time.
- Is Copan Lake full right now?
- As of Oct 18, 2026, 8:00 AM CDT, the lake was 0.98 ft below normal pool.
- What is the lowest level Copan Lake has reached recently?
- In our daily record since January 2016, the lowest was 702.24 ft on Dec 21, 2023, 7.76 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.