oke U. S. Army Corps of Engineers, Jacksonville District Lake Okeechobee and Vicinity Report ** Preliminary Data - Subject to Revision ** LOSOM24 Reg ZoneA = 16.86 LOSOM24 Reg ZoneBC = 16.24 LOSOM24 Reg ZoneD = 10.91 Data Ending 2400 hours 03 MAY 2026 _____________________________________________________________________________ Okeechobee Lake Regulation Elevation Last Year 2YRS Ago (ft-NGVD) (ft-NGVD) (ft-NGVD) *Okeechobee Lake Elevation 11.60 11.17 14.12 (Official Elv) 03MAY (1965-2007) Period of Record Average 13.55 Difference from POR Average -1.95 Today Lake Okeechobee elevation is determined from the 4 Int & 4 Edge stations ++Navigation Depth (Based on 2007 Channel Condition Survey) Route 1 ÷ 5.54' ++Navigation Depth (Based on 2008 Channel Condition Survey) Route 2 ÷ 3.74' Bridge Clearance = 51.02' ______________________________________________________________________________ 4 Interior and 4 Edge Okeechobee Lake Average (Avg-Daily values): L001 L005 L006 LZ40 S4 S352 S308 S133 13.73 11.61 11.65 11.57 11.87 11.71 11.49 11.29 *Combination Okeechobee Avg-Daily Lake Average = 11.60 (*See Note) ______________________________________________________________________________ Okeechobee Inflows (cfs): S65E 270 S65EX1 0 Fisheating Cr 0 S154 0 S191 0 S135 Pumps 0 S84 0 S133 Pumps 0 S2 Pumps 0 S84X 0 S127 Pumps 0 S3 Pumps 0 S71 0 S129 Pumps 0 S4 Pumps 0 S72 0 S131 Pumps 0 C5 0 Total Inflows: 270 Okeechobee Outflows (cfs): S135 Culverts 0 S354 0 S77 655 S127 Culverts 0 S351 0 S308 -3 S129 Culverts 0 S352 0 S131 Culverts 0 L8 Canal Pt 45 Total Outflows: 697 ****S77 structure flow is being used to compute Total Outflow. ****S308 structure flow is being used to compute Total Outflow. Okeechobee Pan Evaporation (inches): S77 0.15 S308 0.03 Average Pan Evap x 0.75 Pan Coefficient = 0.07" = 0.01' Lake Average Precipitation using NEXRAD: = -NR-" = -NR-' Evaporation - Precipitation: = -NR-" = -NR-' Evaporation - Precipitation using Lake Area of 730 square miles is equal to -NR- Lake Okeechobee (Change in Storage) Flow is 0 cfs or 0 AC-FT ______________________________________________________________________________ ______________________________________________________________________________ Headwater Tailwater ----------- Gate Positions ------------ Elevation Elevation Disch #1 #2 #3 #4 #5 #6 #7 #8 (ft-msl) (ft-msl) (cfs) (ft) (ft) (ft) (ft) (ft) (ft) (ft) (ft) (I) see note at bottom North East Shore S133 Pumps: 12.94 11.32 0 0 0 0 0 -NR- (cfs) S193: ______ S191: 18.84 11.33 0 0.0 0.0 0.0 S135 Pumps: 11.53 11.38 0 0 0 0 0 (cfs) S135 Culverts: 0 0.0 0.0 North West Shore S65E: 21.04 11.28 270 0.1 0.1 0.1 0.1 0.1 0.1 S65EX1: 21.04 11.28 0 S127 Pumps: 12.52 11.39 0 0 0 0 0 0 (cfs) S127 Culvert: 0 0.0 S129 Pumps: 13.08 11.61 0 0 0 0 (cfs) S129 Culvert: 0 0.0 S131 Pumps: 12.54 11.60 0 0 0 (cfs) S131 Culvert: 0 Fisheating Creek nr Palmdale 27.58 0 nr Lakeport ______ S282 11.66 11.53 0.0 0.0 0.1 South Shore S4 Pumps: 11.11 11.90 0 0 0 0 (cfs) S169: ______ -NR- -NR- -NR- -NR- -NR- S310: ______ -NR- S3 Pumps: 9.78 11.87 0 0 0 0 (cfs) S354: 11.87 9.78 0 0.0 0.0 S2 Pumps: 9.02 11.76 0 0 0 0 0 (cfs) S351: 11.76 9.02 0 0.0 0.0 0.0 S352: 11.69 9.67 0 0.0 0.0 S271: 11.71 11.80 9.2 9.7 9.8 8.5 L8 Canal PT ______ 45 _________________________________________________________________________ S351 and S352 Temporary Pumps/S354 Spillway S351: 9.02 11.76 0 -NR--NR--NR--NR--NR--NR- S352: 9.67 11.69 0 -NR--NR--NR--NR- S354: 9.78 11.87 0 -NR--NR--NR--NR- _________________________________________________________________________ Caloosahatchee River (S77, S78, S79) S47B: 11.65 11.19 0.0 0.0 S47D: 11.34 11.34 2 5.0 S77: Spillway and Sector Preferred Flow: 11.63 11.20 654 3.0 3.0 0.0 0.0 Flow Due to Lockages+: 1 S78: Spillway and Sector Flow: 11.22 2.91 176 0.0 0.0 0.0 0.5 Flow Due to Lockages+: -NR- S79: Spillway and Sector Flow: 3.06 0.66 928 0.0 0.0 0.0 1.0 2.0 1.0 0.0 0.0 Flow Due to Lockages+: 4 Percent of flow from S77 70% Chloride (ppm) 0 St. Lucie Canal (S308, S80) S308: Spillway and Sector Preferred Flow: 11.49 12.48 0 0.0 0.0 0.0 0.0 Flow Due to Lockages+: -3 S153: 18.94 12.32 0 0.0 0.0 S80: Spillway and Sector Flow: 12.54 2.27 0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 Flow Due to Lockages+: -NR- Percent of flow from S308 NA % Steele Point Top Salinity (mg/ml) **** Steele Point Bottom Salinity (mg/ml) **** Speedy Point Top Salinity (mg/ml) **** Speedy Point Bottom Salinity (mg/ml) **** + Flow Due to lockages is computed utilizing average daily headwater and tailwater along with total number of lockages for the day to calculate a volume which is then converted to an average discharge in cfs. ++ Preferred flow is determined from either the spillway discharge or the below flow meter daily ______________________________________________________________________________ ----- Wind ---- Daily Precipitation Totals 1-Day 3-Day 7-Day Direction Speed (inches) (inches) (inches) (Degų) (mph) S133 Pump Station: -NR- 0.00 0.00 S193: -NR- 0.00 0.00 -NR- -NR- Okeechobee Field Station: -NR- 0.00 0.00 S135 Pump Station: -NR- 0.00 0.00 S127 Pump Station: -NR- 0.00 0.00 S129 Pump Station: -NR- 0.00 0.00 S131 Pump Station: -NR- 0.00 0.00 S77: -NR- 0.00 0.00 14 -NR- S78: -NR- 0.00 0.00 307 -NR- S79: -NR- 0.00 0.00 58 2 S4 Pump Station: -NR- 0.00 0.00 Clewiston Field Station: -NR- 0.00 0.00 S3 Pump Station: -NR- 0.00 0.00 S2 Pump Station: -NR- 0.00 0.00 S308: -NR- 0.00 0.00 334 2 S80: -NR- 0.00 0.00 -NR- -NR- Okeechobee Average -NR- 0.00 0.00 (Sites S78, S79 and S80 not included) ----------------------------------------------------------------- Oke Nexrad Basin Avg -NR- 0.00 0.00 ----------------------------------------------------------------- ______________________________________________________________________________ Okeechobee Lake Elevations 03 MAY 2026 11.60 Difference from 03MAY26 03MAY26 -1 Day = 02 MAY 2026 11.60 0.00 03MAY26 -2 Days = 01 MAY 2026 11.64 0.04 03MAY26 -3 Days = 30 APR 2026 11.67 0.07 03MAY26 -4 Days = 29 APR 2026 11.69 0.09 03MAY26 -5 Days = 28 APR 2026 11.74 0.14 03MAY26 -6 Days = 27 APR 2026 11.75 0.15 03MAY26 -7 Days = 26 APR 2026 11.77 0.17 03MAY26 -30 Days = 03 APR 2026 12.03 0.43 03MAY26 -1 Year = 03 MAY 2025 11.17 -0.43 03MAY26 -2 Year = 03 MAY 2024 14.12 2.52 ______________________________________________________________________________ ______________________________________________________________________________ Lake Okeechobee Net Inflow (LONIN) Average Flow over the previous 14 days | Avg-Daily Flow 03MAY26 Today = 03 MAY 2026 -3422 MON | 699 03MAY26 -1 Day = 02 MAY 2026 -3648 SUN | -6331 03MAY26 -2 Days = 01 MAY 2026 -3232 SAT | -4438 03MAY26 -3 Days = 30 APR 2026 -3235 FRI | -2229 03MAY26 -4 Days = 29 APR 2026 -3351 THU | -7092 03MAY26 -5 Days = 28 APR 2026 -2867 WED | -249 03MAY26 -6 Days = 27 APR 2026 -3087 TUE | -1633 03MAY26 -7 Days = 26 APR 2026 -3230 MON | -164 03MAY26 -8 Days = 25 APR 2026 -3355 SUN | -3823 03MAY26 -9 Days = 24 APR 2026 -3219 SAT | -1883 03MAY26 -10 Days = 23 APR 2026 -3080 FRI | -5272 03MAY26 -11 Days = 22 APR 2026 -2566 THU | -11532 03MAY26 -12 Days = 21 APR 2026 -1606 WED | 612 03MAY26 -13 Days = 20 APR 2026 -108 TUE | -4566 ______________________________________________________________________________ ______________________________________________________________________________ S65E Average Flow over previous 14 days | Avg-Daily Flow 03MAY26 Today= 03 MAY 2026 307 MON | 333 03MAY26 -1 Day = 02 MAY 2026 323 SUN | 211 03MAY26 -2 Days = 01 MAY 2026 350 SAT | 250 03MAY26 -3 Days = 30 APR 2026 375 FRI | 370 03MAY26 -4 Days = 29 APR 2026 406 THU | 326 03MAY26 -5 Days = 28 APR 2026 440 WED | 244 03MAY26 -6 Days = 27 APR 2026 472 TUE | 244 03MAY26 -7 Days = 26 APR 2026 501 MON | 296 03MAY26 -8 Days = 25 APR 2026 529 SUN | 273 03MAY26 -9 Days = 24 APR 2026 545 SAT | 288 03MAY26 -10 Days = 23 APR 2026 559 FRI | 337 03MAY26 -11 Days = 22 APR 2026 570 THU | 281 03MAY26 -12 Days = 21 APR 2026 582 WED | 379 03MAY26 -13 Days = 20 APR 2026 593 TUE | 462 ______________________________________________________________________________ ______________________________________________________________________________ S65EX1 Average Flow over previous 14 days | Avg-Daily Flow 03MAY26 Today= 03 MAY 2026 0 MON | 0 03MAY26 -1 Day = 02 MAY 2026 0 SUN | 0 03MAY26 -2 Days = 01 MAY 2026 0 SAT | 0 03MAY26 -3 Days = 30 APR 2026 0 FRI | 0 03MAY26 -4 Days = 29 APR 2026 0 THU | 0 03MAY26 -5 Days = 28 APR 2026 0 WED | 0 03MAY26 -6 Days = 27 APR 2026 0 TUE | 0 03MAY26 -7 Days = 26 APR 2026 0 MON | 0 03MAY26 -8 Days = 25 APR 2026 0 SUN | 0 03MAY26 -9 Days = 24 APR 2026 0 SAT | 0 03MAY26 -10 Days = 23 APR 2026 0 FRI | 0 03MAY26 -11 Days = 22 APR 2026 0 THU | 0 03MAY26 -12 Days = 21 APR 2026 0 WED | 0 03MAY26 -13 Days = 20 APR 2026 0 TUE | 0 ______________________________________________________________________________ Lake Okeechobee Outlets Last 14 Days S-77 Below S-77 S-78 S-79 Discharge Discharge Discharge Discharge (ALL DAY) (ALL-DAY) (ALL DAY) (ALL DAY) DATE (AC-FT) (AC-FT) (AC-FT) (AC-FT) 03 MAY 2026 1284 1433 -NR- 1864 02 MAY 2026 1001 1263 582 916 01 MAY 2026 1541 2274 708 731 30 APR 2026 1520 1888 629 708 29 APR 2026 1361 1670 596 741 28 APR 2026 1276 1408 503 804 27 APR 2026 1159 1191 356 764 26 APR 2026 961 1394 353 698 25 APR 2026 1125 1525 482 888 24 APR 2026 1230 1819 777 951 23 APR 2026 1287 1858 842 778 22 APR 2026 1137 1444 405 531 21 APR 2026 247 594 154 1015 20 APR 2026 965 1337 230 1006 S-310 S-351 S-352 S-354 L8 Canal Pt Discharge Discharge Discharge Discharge Discharge (ALL DAY) (ALL DAY) (ALL DAY) (ALL DAY) (ALL DAY) DATE (AC-FT) (AC-FT) (AC-FT) (AC-FT) (AC-FT) 03 MAY 2026 -NR- 0 0 0 -NR- 02 MAY 2026 -NR- 0 0 275 -NR- 01 MAY 2026 -NR- 0 0 0 -NR- 30 APR 2026 -NR- 488 0 317 -NR- 29 APR 2026 -NR- 1371 0 959 -NR- 28 APR 2026 -NR- 648 0 1087 -NR- 27 APR 2026 -NR- 1282 395 1031 -NR- 26 APR 2026 -NR- 1148 493 535 -NR- 25 APR 2026 -NR- 839 208 811 -NR- 24 APR 2026 -NR- 753 0 1194 -NR- 23 APR 2026 -NR- 766 210 1180 -NR- 22 APR 2026 -NR- 0 98 774 -NR- 21 APR 2026 -NR- 0 0 971 -NR- 20 APR 2026 -NR- 0 0 766 -NR- S-308 Below S-308 S-80 Discharge Discharge Discharge (ALL DAY) (ALL-DAY) (ALL-DAY) DATE (AC-FT) (AC-FT) (AC-FT) 03 MAY 2026 -5 -NR- -NR- 02 MAY 2026 -4 -3 49 01 MAY 2026 -5 -3 40 30 APR 2026 -7 -6 44 29 APR 2026 -8 -6 45 28 APR 2026 -8 -4 31 27 APR 2026 -9 -6 46 26 APR 2026 -10 -5 48 25 APR 2026 -13 -5 36 24 APR 2026 -9 -7 37 23 APR 2026 -9 -11 37 22 APR 2026 -11 -9 33 21 APR 2026 -5 -6 25 20 APR 2026 -6 -6 33 *** NOTE: Discharge (ALL DAY) is computed using Spillway, Sector Gate and Lockages Discharges from 0015 hrs to 2400 hrs. ______________________________________________________________________________ (I) - Flows preceeded by "I" signify an instantaneous flow computed from the single value reported for the day ______________________________________________________________________________ * On 11 May 1999, Lake Okeechobee Elevation was switched from Instantaneous 2400 value to an average-daily lake average. On 14 Mar 2001, due to the isolation of various gages within the standard 10 stations, the average of the interior 4 station gages was used as the Lake Okeechobee Elevation. On 05 November 2010, Lake Okeechobee Elevation was switched to a 9 gage mix of interior and edge gages to obtain a more reliable representation of the lake level. On 09 May 2011, Lake Okeechobee Elevation was switched to a 8 gage mix of interior and edge gages to obtain a more reliable representation of the lake level due to isolation of S135 from low lake levels. Today Lake Okechobee elevation is determined from the 4 Int & 4 Edge stations ++ For more information see the Jacksonville District Navigation website at http://www.saj.usace.army.mil/ $ For information regarding Lake Okeechobee Service Area water restrictions please refer to www.sfwmd.gov ______________________________________________________________________________ Report Generated 04MAY2026 @ 14:15 ** Preliminary Data - Subject to Revision **