This list is rebuilt every day from the same official data as our lake pages. “Normal” is the median percent full for this calendar date over up to 30 past years of TWDB records, so it only exists for Texas reservoirs with long histories. For U.S. Army Corps of Engineers lakes in our pilot, we compare the level with the Corps’ published conservation pool. Gauges elsewhere publish elevation only, so we cannot say how far below normal they are and do not guess.
Furthest below normal for this date
| Lake | % full | Normal (median) | Difference |
|---|---|---|---|
| New Terrell City Lake TX | 23.8% | 79.7% | -55.9 pts |
| Caddo Lake TX | 46.0% | 100.0% | -54.0 pts |
| Lake Abilene TX | 6.7% | 44.5% | -37.8 pts |
| Medina Lake TX | 27.5% | 63.5% | -36.0 pts |
| Monticello Reservoir TX | 71.6% | 96.8% | -25.2 pts |
| Choke Canyon Reservoir TX | 21.2% | 45.8% | -24.6 pts |
| Lake Striker TX | 72.3% | 96.8% | -24.5 pts |
| Hubbard Creek Reservoir TX | 35.7% | 60.0% | -24.3 pts |
| Sam Rayburn Reservoir TX | 61.4% | 84.0% | -22.6 pts |
| Oak Creek Reservoir TX | 13.4% | 35.1% | -21.7 pts |
| Greenbelt Lake TX | 4.4% | 25.5% | -21.1 pts |
| Lake Sweetwater TX | 16.3% | 36.5% | -20.2 pts |
| Proctor Lake TX | 56.7% | 75.3% | -18.6 pts |
| Lake Weatherford TX | 59.1% | 77.7% | -18.6 pts |
| Cedar Creek Reservoir TX | 72.3% | 90.0% | -17.7 pts |
| Lake Graham TX | 66.2% | 83.7% | -17.5 pts |
| Lake Nocona (Farmer's Creek) TX | 73.1% | 90.2% | -17.1 pts |
| Lake Alan Henry TX | 73.2% | 89.3% | -16.1 pts |
| Cooper (Chapman) Lake TX | 64.4% | 80.2% | -15.8 pts |
| Lake Cherokee TX | 76.2% | 91.5% | -15.3 pts |
| Amistad Reservoir TX | 46.6% | 61.3% | -14.7 pts |
| Lake Worth TX | 67.6% | 80.2% | -12.6 pts |
| Lake Cisco TX | 42.3% | 54.4% | -12.1 pts |
| Falcon Reservoir TX | 20.2% | 31.8% | -11.6 pts |
| Lake Fork Reservoir TX | 79.7% | 91.0% | -11.3 pts |
Corps lakes below conservation pool
| Lake | Level | Conservation pool | Below by |
|---|---|---|---|
| Beaver Lake AR | 1,112.04 ft | 1,120.43 ft | 8.39 ft |
| Tenkiller Ferry Lake OK | 624.74 ft | 632.00 ft | 7.26 ft |
| Greers Ferry Lake AR | 454.93 ft | 462.04 ft | 7.11 ft |
| Table Rock Lake MO | 910.57 ft | 917.00 ft | 6.43 ft |
| Bull Shoals Lake AR | 652.89 ft | 659.00 ft | 6.11 ft |
| Eufaula Lake OK | 581.62 ft | 585.00 ft | 3.38 ft |
Lowest percent full
| Lake | % full | 7 days |
|---|---|---|
| Palo Duro Reservoir TX | 0.4% | −0.01 ft |
| Twin Buttes Reservoir TX | 4.3% | −0.40 ft |
| Greenbelt Lake TX | 4.4% | −0.16 ft |
| Elephant Butte Lake NM | 4.8% | +0.77 ft |
| Lake Abilene TX | 6.7% | −0.20 ft |
| E. V. Spence Reservoir TX | 9.3% | +0.02 ft |
| O. C. Fisher Lake TX | 10.4% | −0.10 ft |
| Mackenzie Reservoir TX | 10.8% | −0.07 ft |
| Oak Creek Reservoir TX | 13.4% | −0.10 ft |
| Lake Sweetwater TX | 16.3% | −0.10 ft |
| Falcon Reservoir TX | 20.2% | −0.32 ft |
| Lake J.B. Thomas TX | 20.4% | −0.06 ft |
| Choke Canyon Reservoir TX | 21.2% | −0.14 ft |
| New Terrell City Lake TX | 23.8% | −0.08 ft |
| White River Reservoir TX | 27.4% | −0.12 ft |
Biggest 30-day drops
| Lake | Level | 30 days |
|---|---|---|
| Tygart Lake WV | 1,063.63 ft | −69.68 ft |
| Francis E. Walter Reservoir PA | 1,302.88 ft | −52.30 ft |
| J. Edward Roush Lake IN | 745.93 ft | −44.84 ft |
| Green Peter Lake OR | 852.07 ft | −41.70 ft |
| Blue River Lake OR | 1,218.05 ft | −37.87 ft |
| Donnell Lake CA | 4,791.51 ft | −37.33 ft |
| Dorena Lake OR | 782.82 ft | −30.84 ft |
| Rimrock Lake WA | 2,849.94 ft | −28.48 ft |
| Mahoning Creek Reservoir PA | 1,088.89 ft | −24.95 ft |
| Detroit Lake OR | 1,486.54 ft | −24.22 ft |
| Howard A Hanson Reservoir WA | 1,122.17 ft | −22.57 ft |
| Lookout Point Lake OR | 803.30 ft | −20.21 ft |
| Willard Bay Reservoir UT | 4,197.51 ft | −19.47 ft |
| Lake Piru CA | 1,020.99 ft | −19.10 ft |
| Mount Elbert Forebay Reservoir CO | 9,613.28 ft | −18.98 ft |
Percent full and normal: TWDB. Corps conservation pool: USACE CWMS Data API. Elevations use each gauge’s own datum. Not a drought declaration; see U.S. Drought Monitor for official drought status.