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DRAFT-Lake Okeechobee and Vicinity Report
----- DRAFT DRAFT DRAFT DRAFT DRAFT -----
U. S. Army Corps of Engineers, Jacksonville District
Lake Okeechobee and Vicinity Report
** Preliminary Data - Subject to Revision **
Data Ending 2400 hours 19 AUG 2026
| Okeechobee Lake Regulation |
Elevation
(FT-NGVD) |
Last Year
(FT-NGVD) |
2 Years Ago
(FT-NGVD) |
| *Okeechobee Lake Elevation |
10.93 |
12.22 |
14.06 |
Bottom of High Lake Management Band = -NR-
Top of Water Short Management = 12.13
Currently in Water Shortage Management Band
Today Lake Okeechobee elevation is determined from the 4 Int & 4 Edge stations
++Navigation Depth (Based on 2007 Channel Condition Survey) Route 1 = 4.87'
++Navigation Depth (Based on 2008 Channel Condition Survey) Route 2 = 3.07'
Bridge Clearance = 49.41'
4 Interior and 4 Edge Okeechobee Lake Average (Avg-Daily values):
| L001 |
L005 |
L006 |
LZ40 |
S4 |
S352 |
S308 |
S133 |
| 10.93 |
10.84 |
11.03 |
10.90 |
10.88 |
11.08 |
10.90 |
10.80 |
*Combination Okeechobee Avg-Daily Lake Average = 10.93 (*See Note)
| Okeechobee Inflows (cfs) |
S65E 212 |
S65EX1 0 |
Fisheating Cr 61 |
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 46 |
S131 Pumps 0 |
C5 0 |
Total Inflows: 319 |
| Okeechobee Outflows (cfs) |
S135 Culverts 0 |
S354 137 |
S77 931 |
S127 Culverts 2 |
S352 205 |
|
S131 Culverts 5 |
L8 Canal Pt -NR- |
|
Total Outflows: 1279 |
****S77 structure flow is being used to compute Total Outflow.
****S308 structure flow is being used to compute Total Outflow.
| Okeechobee Pan Evaporations |
S77 Pan Evaporation (inches) 0.34 |
S308 Pan Evaporation (inches) 0.37 |
Average Pan Evap x 0.75 Pan Coefficient = 0.27" = 0.02' |
Lake Average Precipitation using NEXRAD: = -NR-" = -NR-'
Evaporation - Precipitation: = -NR-" = -NR-'
Evaporation - Precipitation equal to: = -NR-
Lake Okeechobee (Change in Storage) Flow is -3328 cfs or -6600 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: 13.20 10.88 0 0 0 0 0 -NR- (cfs)
S193: ______
S191: 18.42 10.87 0 0.0 0.0 0.0
S135 Pumps: 13.41 10.81 0 0 0 0 0 (cfs)
S135 Culverts: 0 0.0 0.0
North West Shore
S65E: 20.86 10.40 212 0.0 0.2 0.1 0.1 0.1 0.1
S65EX1: 20.86 10.40 0
S127 Pumps: 13.59 10.76 0 0 0 0 0 0 (cfs)
S127 Culvert: 0 0.0
S129 Pumps: 13.25 12.17 0 0 0 0 (cfs)
S131 Pumps: 13.35 11.36 0 0 0 (cfs)
S131 Culvert: 5
Fisheating Creek
nr Palmdale 29.89 61
nr Lakeport ______
C5: ______ -NR- 0 -NR- -NR- -NR-
South Shore
S4 Pumps: 10.78 10.78 0 0 0 0 (cfs)
S169: ______ -NR- -NR- -NR- -NR- -NR-
S310: ______ -NR-
S3 Pumps: 10.73 10.88 0 0 0 0 (cfs)
S354: 10.88 10.73 137 2.0 1.5
S2 Pumps: 10.26 10.95 0 0 0 0 0 (cfs)
S351: 10.95 10.26 0 0.0 0.0 0.0
S352: 11.01 10.31 205 1.0 0.9
C10A: -NR- -NR- -NR- -NR- -NR- -NR- -NR-
L8 Canal PT ______ -NR-
_________________________________________________________________________
S351 and S352 Temporary Pumps/S354 Spillway
S351: 10.26 10.95 0 -NR--NR--NR--NR--NR--NR-
S352: 10.31 11.01 205 -NR--NR--NR--NR-
S354: 10.73 10.88 137 -NR--NR--NR--NR-
_________________________________________________________________________
Caloosahatchee River (S77, S78, S79)
S47B: 10.23 10.47 0.0 0.0
S47D: 10.58 10.60 -36 5.0
S77:
Spillway and Sector Flow:
10.62 10.49 931.00 4.5 4.5 0.0 0.0
Flow Due to Lockages+: 0
S77 Below USGS Flow Gage 742
S78:
Spillway and Sector Flow:
10.61 2.91 219 0.0 0.0 0.0 0.5
Flow Due to Lockages+: 4
S79:
Spillway and Sector Flow:
3.11 1.40 502 0.0 0.0 1.0 1.0 0.0 0.0 0.0 0.0
Flow Due to Lockages+: 1
Percent of flow from S77 185%
Chloride (ppm) 0
St. Lucie Canal (S308, S80)
S308:
Spillway and Sector Flow:
11.01 14.09 0.00 0.0 0.0 0.0 0.0
Flow Due to Lockages+: -1
S308 Below USGS Flow Gage -NR-
S153: 18.65 13.92 39 0.5 0.0
S80:
Spillway and Sector Flow:
14.12 0.30 -NR- 0.0 0.0 0.0 0.0 0.0 0.0 0.0
Flow Due to Lockages+: -NR-
Percent of flow from S308 -NR-%
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.
______________________________________________________________________________
----- Wind ----
Daily Precipitation Totals 1-Day 3-Day 7-Day Direction Speed
(inches) (inches) (inches) (Deg\370) (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 0.00 158 -NR-
S78: -NR- 0.00 0.00 -NR- -NR-
S79: -NR- 0.00 0.00 131 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 62 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 19 AUG 2026 10.93 Difference from 19AUG26
19AUG26 -1 Day = 18 AUG 2026 10.95 0.02
19AUG26 -2 Days = 17 AUG 2026 10.97 0.04
19AUG26 -3 Days = 16 AUG 2026 10.98 0.05
19AUG26 -4 Days = 15 AUG 2026 11.00 0.07
19AUG26 -5 Days = 14 AUG 2026 11.01 0.08
19AUG26 -6 Days = 13 AUG 2026 11.02 0.09
19AUG26 -7 Days = 12 AUG 2026 11.03 0.10
19AUG26 -30 Days = 20 JUL 2026 10.95 0.02
19AUG26 -1 Year = 19 AUG 2025 12.22 1.29
19AUG26 -2 Year = 19 AUG 2024 14.06 3.13
______________________________________________________________________________
Long Term Mean 30day Avearge ET for Lake Alfred (Inches) = -NR-
______________________________________________________________________________
Lake Okeechobee Net Inflow (LONIN)
Average Flow over the previous 14 days | Avg-Daily Flow
19AUG26 Today = 19 AUG 2026 174 THU | -2016
19AUG26 -1 Day = 18 AUG 2026 797 WED | -3087
19AUG26 -2 Days = 17 AUG 2026 1026 TUE | -1495
19AUG26 -3 Days = 16 AUG 2026 1144 MON | -3212
19AUG26 -4 Days = 15 AUG 2026 1502 SUN | -1766
19AUG26 -5 Days = 14 AUG 2026 1636 SAT | -1592
19AUG26 -6 Days = 13 AUG 2026 1757 FRI | -1746
19AUG26 -7 Days = 12 AUG 2026 1777 THU | -1763
19AUG26 -8 Days = 11 AUG 2026 1909 WED | -1779
19AUG26 -9 Days = 10 AUG 2026 2048 TUE | 1855
19AUG26 -10 Days = 09 AUG 2026 2045 MON | 1815
19AUG26 -11 Days = 08 AUG 2026 2043 SUN | 3630
19AUG26 -12 Days = 07 AUG 2026 2149 SAT | 5239
19AUG26 -13 Days = 06 AUG 2026 1695 FRI | 8350
______________________________________________________________________________
______________________________________________________________________________
S65E
Average Flow over previous 14 days | Avg-Daily Flow
19AUG26 Today= 19 AUG 2026 328 THU | 233
19AUG26 -1 Day = 18 AUG 2026 332 WED | 368
19AUG26 -2 Days = 17 AUG 2026 326 TUE | 385
19AUG26 -3 Days = 16 AUG 2026 320 MON | 386
19AUG26 -4 Days = 15 AUG 2026 316 SUN | 340
19AUG26 -5 Days = 14 AUG 2026 311 SAT | 360
19AUG26 -6 Days = 13 AUG 2026 296 FRI | 314
19AUG26 -7 Days = 12 AUG 2026 289 THU | 310
19AUG26 -8 Days = 11 AUG 2026 283 WED | 288
19AUG26 -9 Days = 10 AUG 2026 274 TUE | 261
19AUG26 -10 Days = 09 AUG 2026 266 MON | 278
19AUG26 -11 Days = 08 AUG 2026 255 SUN | 438
19AUG26 -12 Days = 07 AUG 2026 230 SAT | 351
19AUG26 -13 Days = 06 AUG 2026 214 FRI | 284
______________________________________________________________________________
______________________________________________________________________________
S65EX1
Average Flow over previous 14 days | Avg-Daily Flow
19AUG26 Today= 19 AUG 2026 6 THU | 0
19AUG26 -1 Day = 18 AUG 2026 6 WED | 0
19AUG26 -2 Days = 17 AUG 2026 6 TUE | 0
19AUG26 -3 Days = 16 AUG 2026 6 MON | 0
19AUG26 -4 Days = 15 AUG 2026 6 SUN | 0
19AUG26 -5 Days = 14 AUG 2026 6 SAT | 0
19AUG26 -6 Days = 13 AUG 2026 6 FRI | 0
19AUG26 -7 Days = 12 AUG 2026 6 THU | 0
19AUG26 -8 Days = 11 AUG 2026 6 WED | 14
19AUG26 -9 Days = 10 AUG 2026 5 TUE | 23
19AUG26 -10 Days = 09 AUG 2026 4 MON | 20
19AUG26 -11 Days = 08 AUG 2026 2 SUN | 22
19AUG26 -12 Days = 07 AUG 2026 1 SAT | 6
19AUG26 -13 Days = 06 AUG 2026 0 FRI | 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)
19 AUG 2026 1807 1471 434 997
18 AUG 2026 305 614 451 793
17 AUG 2026 225 632 312 979
16 AUG 2026 162 318 911 2587
15 AUG 2026 -0 70 1132 3089
14 AUG 2026 -0 13 709 2275
13 AUG 2026 0 95 989 3264
12 AUG 2026 -0 110 1110 3707
11 AUG 2026 -2 11 701 3109
10 AUG 2026 65 74 1156 4110
09 AUG 2026 -0 7 1633 5137
08 AUG 2026 -50 -39 1036 4012
07 AUG 2026 175 193 850 2332
06 AUG 2026 52 -355 384 2028
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)
19 AUG 2026 -NR- 0 365 9423 -NR-
18 AUG 2026 -NR- 0 61 0 -NR-
17 AUG 2026 -NR- 0 0 0 -NR-
16 AUG 2026 -NR- 0 0 0 -NR-
15 AUG 2026 -NR- 0 0 464 -NR-
14 AUG 2026 -NR- 153 0 11261 -NR-
13 AUG 2026 -NR- 0 0 0 -NR-
12 AUG 2026 -NR- 0 0 0 -NR-
11 AUG 2026 -NR- 0 0 0 -NR-
10 AUG 2026 -NR- 0 0 0 -NR-
09 AUG 2026 -NR- 0 0 0 -NR-
08 AUG 2026 -NR- 0 0 0 -NR-
07 AUG 2026 -NR- 0 0 0 -NR-
06 AUG 2026 -NR- 0 0 0 -NR-
S-308 Below S-308 S-80
Discharge Discharge Discharge
(ALL DAY) (ALL-DAY) (ALL-DAY)
DATE (AC-FT) (AC-FT) (AC-FT)
19 AUG 2026 -2 -NR- -NR-
18 AUG 2026 -3 -2 -NR-
17 AUG 2026 -6 -7 -NR-
16 AUG 2026 -9 -4 -NR-
15 AUG 2026 -3 -6 -NR-
14 AUG 2026 -7 -4 -NR-
13 AUG 2026 -5 -8 4
12 AUG 2026 -5 -7 20
11 AUG 2026 -5 -4 16
10 AUG 2026 -4 -6 8
09 AUG 2026 -5 -6 36
08 AUG 2026 -2 -6 16
07 AUG 2026 -5 -8 12
06 AUG 2026 -10 -6 27
*** 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 20AUG2026 @ 12:39 ** Preliminary Data - Subject to Revision **