lonin U. S. Army Corps of Engineers, Jacksonville District Lake Okeechobee Net Inflow Report(LONIN) ** Preliminary Data - Subject to Revision ** Data Ending 2400 hours 22 MAY 2026 ____________________________________________________________________________________ LONIN(*) = Change in Storage + Outflows LONIN(*) = Change in Storage + S-77 + S-308 + S-351 + S-352 + S-354 + L8@Canal Point 14 Day Average LONIN(*): -566 cfs Classification of LONIN: Dry 7 Day Average LONIN(*): -2472 cfs NOTE: Preferred discharges out of S-77 and S-308 are used in the LONIN calculation * Negative outflows are omitted from the LONIN calculation ____________________________________________________________________________________ | LONIN | STORAGE | S-77* | S-308* | S-351*| S-352*| S-354*| L-8@CP*| DATE | (CFS) | (CFS) | (CFS) | (CFS) | (CFS) | (CFS) | (CFS) | (CFS) | 22 MAY 2026| -4702 | -7210 | 400 | 0 | 1127 | 302 | 652 | 27 | 21 MAY 2026| -1325 | -3529 | 418 | 0 | 779 | 174 | 811 | 22 | 20 MAY 2026| -6615 | -8823 | 446 | 0 | 665 | 193 | 889 | 15 | 19 MAY 2026| 45 | -1765 | 288 | 0 | 716 | 236 | 570 | -40 | 18 MAY 2026| 2711 | 1765 | 268 | 0 | 456 | 123 | 100 | -21 | 17 MAY 2026| -2957 | -3529 | 118 | 0 | 435 | 20 | 0 | -14 | 16 MAY 2026| -4462 | -5445 | 720 | 0 | 252 | 0 | 11 | -20 | 15 MAY 2026| 4564 | 3630 | 934 | 0 | 0 | 0 | 0 | -19 | 14 MAY 2026| -3004 | -3630 | 626 | 0 | 0 | 0 | 0 | -48 | 13 MAY 2026| 1981 | 1815 | 141 | 0 | 0 | 0 | 0 | 25 | 12 MAY 2026| 2318 | 1815 | 482 | 0 | 13 | 0 | 0 | 8 | 11 MAY 2026| 6684 | 5344 | 800 | 0 | 379 | 76 | 81 | 4 | 10 MAY 2026| -452 | -3529 | 858 | 0 | 1292 | 381 | 494 | 51 | 09 MAY 2026| -2711 | -5445 | 300 | 0 | 1295 | 461 | 622 | 56 | ____________________________________________________________________________________ Preferred Discharges __________________________________________________________ | S-77 |Below S-77 | S-77 Preferred* | DATE | (CFS) |(CFS) | (CFS) | 22 MAY 2026| 400 | 546 | 400 Structure Flow | 21 MAY 2026| 418 | 540 | 418 Structure Flow | 20 MAY 2026| 446 | 508 | 446 Structure Flow | 19 MAY 2026| 288 | 344 | 288 Structure Flow | 18 MAY 2026| 354 | 291 | 268 Below Flow | 17 MAY 2026| 768 | -NR- | 118 Below Flow | 16 MAY 2026| 720 | 573 | 720 Structure Flow | 15 MAY 2026| 934 | 727 | 934 Structure Flow | 14 MAY 2026| 954 | 756 | 626 Below Flow | 13 MAY 2026| 354 | 272 | 141 Below Flow | 12 MAY 2026| 767 | 641 | 482 Below Flow | 11 MAY 2026| 800 | 712 | 800 Structure Flow | 10 MAY 2026| 858 | 772 | 858 Structure Flow | 09 MAY 2026| 731 | 756 | 300 Below Flow | ___________________________________________________________ __________________________________________________________ | S-308 |Below S-308| S-308 Preferred* | DATE | (CFS) |(CFS) | (CFS) | 22 MAY 2026| 0 | 96 | 0 Structure Flow | 21 MAY 2026| 0 | 109 | 0 Structure Flow | 20 MAY 2026| 0 | 102 | 0 Structure Flow | 19 MAY 2026| 0 | 132 | 0 Structure Flow | 18 MAY 2026| 0 | 105 | 0 Structure Flow | 17 MAY 2026| 0 | 122 | 0 Structure Flow | 16 MAY 2026| 0 | 80 | 0 Structure Flow | 15 MAY 2026| 0 | 81 | 0 Structure Flow | 14 MAY 2026| 0 | 7 | 0 Structure Flow | 13 MAY 2026| 0 | -101 | 0 Structure Flow | 12 MAY 2026| 0 | -1 | 0 Structure Flow | 11 MAY 2026| 0 | -40 | 0 Structure Flow | 10 MAY 2026| 0 | -8 | 0 Structure Flow | 09 MAY 2026| 0 | -55 | 0 Structure Flow | ___________________________________________________________ Preferred flows out of S-77 and S-308 are determined by using the following criteria: - At low flows (<300 cfs), the strcuture flow is used. - If all gates are closed, the flow is zero. - If the structure flow is greater then the below gage by more than 30%, then the downstream gage will be the preferred flow. This scenatio is likely due to vegetation clogging which causes the structure flow to be falsely high. - If there is positive head accross the structure, negative flows will not be used - USACE can force the preferred flows to be one gage or the other, overwriting the above rules (exception is if the gates are closed, then flow will be zero) POC for questions about this report: Troy Weber, Troy.G.Weber@usace.army.mil Report Generated 23MAY2026 @ 20:15 ** Preliminary Data - Subject to Revision **