Texas AI Docket
Texas Water Watch

Reservoir record

Amistad Reservoir

Amistad Reservoir is 46.5% full, holding 843,911 acre feet against a conservation capacity of 1,813,408 acre feet.

Updated October 20th, 2026

Percent full46.5%
Storage843,911AF
Conservation capacity1,813,408AF
Change today+9,988AF
Across the record+145,995AF
Recorded range38.0% to 46.5%
Record71days

Daily movement

The line follows every verified reading held for this reservoir.

36.5%42.3%48.1% August 11th, 2026, 38.5% fullAugust 12th, 2026, 38.5% fullAugust 13th, 2026, 38.5% fullAugust 14th, 2026, 38.4% fullAugust 15th, 2026, 38.4% fullAugust 16th, 2026, 38.4% fullAugust 17th, 2026, 38.4% fullAugust 18th, 2026, 38.3% fullAugust 19th, 2026, 38.3% fullAugust 20th, 2026, 38.4% fullAugust 21st, 2026, 38.3% fullAugust 22nd, 2026, 38.3% fullAugust 23rd, 2026, 38.3% fullAugust 24th, 2026, 38.3% fullAugust 25th, 2026, 38.3% fullAugust 26th, 2026, 38.3% fullAugust 27th, 2026, 38.2% fullAugust 28th, 2026, 38.2% fullAugust 29th, 2026, 38.2% fullAugust 30th, 2026, 38.1% fullAugust 31st, 2026, 38.1% fullSeptember 1st, 2026, 38.1% fullSeptember 2nd, 2026, 38.1% fullSeptember 3rd, 2026, 38.0% fullSeptember 4th, 2026, 39.2% fullSeptember 5th, 2026, 39.2% fullSeptember 6th, 2026, 39.1% fullSeptember 7th, 2026, 39.1% fullSeptember 8th, 2026, 39.1% fullSeptember 9th, 2026, 39.1% fullSeptember 10th, 2026, 39.1% fullSeptember 11th, 2026, 39.0% fullSeptember 12th, 2026, 39.0% fullSeptember 13th, 2026, 39.0% fullSeptember 14th, 2026, 39.0% fullSeptember 15th, 2026, 38.9% fullSeptember 16th, 2026, 38.9% fullSeptember 17th, 2026, 38.9% fullSeptember 18th, 2026, 38.8% fullSeptember 19th, 2026, 38.8% fullSeptember 20th, 2026, 38.8% fullSeptember 21st, 2026, 38.8% fullSeptember 22nd, 2026, 38.8% fullSeptember 23rd, 2026, 38.8% fullSeptember 24th, 2026, 38.8% fullSeptember 25th, 2026, 38.8% fullSeptember 26th, 2026, 38.8% fullSeptember 27th, 2026, 38.8% fullSeptember 28th, 2026, 38.8% fullSeptember 29th, 2026, 38.9% fullSeptember 30th, 2026, 39.0% fullOctober 1st, 2026, 39.1% fullOctober 2nd, 2026, 41.8% fullOctober 3rd, 2026, 43.0% fullOctober 4th, 2026, 43.4% fullOctober 5th, 2026, 43.5% fullOctober 6th, 2026, 43.5% fullOctober 7th, 2026, 43.6% fullOctober 8th, 2026, 43.6% fullOctober 9th, 2026, 43.6% fullOctober 10th, 2026, 43.6% fullOctober 11th, 2026, 43.6% fullOctober 12th, 2026, 43.6% fullOctober 13th, 2026, 43.6% fullOctober 14th, 2026, 43.6% fullOctober 15th, 2026, 43.7% fullOctober 16th, 2026, 44.2% fullOctober 17th, 2026, 44.7% fullOctober 18th, 2026, 45.3% fullOctober 19th, 2026, 46.0% fullOctober 20th, 2026, 46.5% fullAug 11thSep 15thOct 20th
Daily percent full. The vertical scale follows this record's own range instead of starting at zero, so its movement stays visible without changing the measurement.

The readings

Daily movement appears only when the previous reading is from the prior calendar day.

DatePercent fullStorageDaily movement
October 20th, 202646.5%843,911 AF+9,988 AF
October 19th, 202646.0%833,923 AF+11,799 AF
October 18th, 202645.3%822,124 AF+11,573 AF
October 17th, 202644.7%810,551 AF+8,980 AF
October 16th, 202644.2%801,571 AF+9,781 AF
October 15th, 202643.7%791,790 AF+379 AF
October 14th, 202643.6%791,411 AF+270 AF
October 13th, 202643.6%791,141 AF+397 AF
October 12th, 202643.6%790,744 AF+11 AF
October 11th, 202643.6%790,733 AF+98 AF
October 10th, 202643.6%790,635 AF+728 AF
October 9th, 202643.6%789,907 AF-1,542 AF
October 8th, 202643.6%791,449 AF+737 AF
October 7th, 202643.6%790,712 AF+1,169 AF
October 6th, 202643.5%789,543 AF+1,238 AF
October 5th, 202643.5%788,305 AF+2,104 AF
October 4th, 202643.4%786,201 AF+5,901 AF
October 3rd, 202643.0%780,300 AF+22,328 AF
October 2nd, 202641.8%757,972 AF+48,315 AF
October 1st, 202639.1%709,657 AF+1,998 AF
September 30th, 202639.0%707,659 AF+1,798 AF
September 29th, 202638.9%705,861 AF+2,668 AF
September 28th, 202638.8%703,193 AF+474 AF
September 27th, 202638.8%702,719 AF+63 AF
September 26th, 202638.8%702,656 AF-219 AF
September 25th, 202638.8%702,875 AF+43 AF
September 24th, 202638.8%702,832 AF-107 AF
September 23rd, 202638.8%702,939 AF+120 AF
September 22nd, 202638.8%702,819 AF-171 AF
September 21st, 202638.8%702,990 AF-319 AF
September 20th, 202638.8%703,309 AF-82 AF
September 19th, 202638.8%703,391 AF-415 AF
September 18th, 202638.8%703,806 AF-1,219 AF
September 17th, 202638.9%705,025 AF-340 AF
September 16th, 202638.9%705,365 AF-403 AF
September 15th, 202638.9%705,768 AF-539 AF
September 14th, 202639.0%706,307 AF-323 AF
September 13th, 202639.0%706,630 AF-412 AF
September 12th, 202639.0%707,042 AF-295 AF
September 11th, 202639.0%707,337 AF-1,419 AF
September 10th, 202639.1%708,756 AF-358 AF
September 9th, 202639.1%709,114 AF-155 AF
September 8th, 202639.1%709,269 AF-173 AF
September 7th, 202639.1%709,442 AF-388 AF
September 6th, 202639.1%709,830 AF-227 AF
September 5th, 202639.2%710,057 AF-230 AF
September 4th, 202639.2%710,287 AF+20,197 AF
September 3rd, 202638.0%690,090 AF-317 AF
September 2nd, 202638.1%690,407 AF-406 AF
September 1st, 202638.1%690,813 AF-384 AF
August 31st, 202638.1%691,197 AF-460 AF
August 30th, 202638.1%691,657 AF-342 AF
August 29th, 202638.2%691,999 AF-336 AF
August 28th, 202638.2%692,335 AF-227 AF
August 27th, 202638.2%692,562 AF-1,679 AF
August 26th, 202638.3%694,241 AF-305 AF
August 25th, 202638.3%694,546 AF-379 AF
August 24th, 202638.3%694,925 AF-202 AF
August 23rd, 202638.3%695,127 AF-17 AF
August 22nd, 202638.3%695,144 AF+40 AF
August 21st, 202638.3%695,104 AF-573 AF
August 20th, 202638.4%695,677 AF+518 AF
August 19th, 202638.3%695,159 AF-81 AF
August 18th, 202638.3%695,240 AF-252 AF
August 17th, 202638.4%695,492 AF-338 AF
August 16th, 202638.4%695,830 AF-109 AF
August 15th, 202638.4%695,939 AF-256 AF
August 14th, 202638.4%696,195 AF-1,451 AF
August 13th, 202638.5%697,646 AF-180 AF
August 12th, 202638.5%697,826 AF-90 AF
August 11th, 202638.5%697,916 AFFirst reading

Every reading is available in the open water record.