oke
               U. S. Army Corps of Engineers, Jacksonville District
                       Lake Okeechobee and Vicinity Report
                   ** Preliminary Data - Subject to Revision **
 
Data Ending 2400 hours   23 OCT 2021
_____________________________________________________________________________
 
Okeechobee Lake Regulation      Elevation   Last Year  2YRS Ago
                                (ft-NGVD)   (ft-NGVD)  (ft-NGVD)
  *Okeechobee Lake Elevation       15.84       16.35    13.48 (Official Elv)
  Bottom of High Lake Mngmt= 17.11  Top of Water Short Mngmt= 12.85
  Currently in Operational Management Band
 
  Simulated Average LORS2008 [1965-2000]    14.02
  Difference from Average LORS2008          1.82
 
  23OCT (1965-2007) Period of Record Average    15.06
  Difference from POR Average                   0.78
 
  Today Lake Okeechobee elevation is determined from the 4 Int & 4 Edge stations
 
  ++Navigation Depth (Based on 2007 Channel Condition Survey) Route 1 ÷  9.78'
  ++Navigation Depth (Based on 2008 Channel Condition Survey) Route 2 ÷  7.98'
  Bridge Clearance = 48.88'
______________________________________________________________________________
 
4 Interior and 4 Edge Okeechobee Lake Average (Avg-Daily values):
 
  L001   L005   L006   LZ40   S4     S352   S308   S133
  15.79  15.87  15.84  15.81  15.88  15.93   15.82 15.72
 
 
 *Combination Okeechobee  Avg-Daily Lake Average =  15.84
                                                   (*See Note)
______________________________________________________________________________
 
Okeechobee Inflows (cfs):
  S65E           1727      S65EX1            0      Fisheating Cr   210
  S154             56      S191              0      S135 Pumps        0
  S84             379      S133 Pumps        0      S2 Pumps          0
  S84X             48      S127 Pumps        0      S3 Pumps          0
  S71               0      S129 Pumps        0      S4 Pumps          0
  S72             230      S131 Pumps        0      C5                0
Total Inflows:   2650
 
Okeechobee Outflows (cfs):
  S135 Culverts  -NR-      S354              0      S77             180
  S127 Culverts     0      S351              0      S308              5
  S129 Culverts     0      S352             29
  S131 Culverts     0      L8 Canal Pt    -NR-
Total Outflows:    215
 
****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            0.21      S308           0.28
  Average Pan Evap x 0.75 Pan Coefficient =  0.18" =  0.02'
 
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   2168 cfs or   4300 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:  13.43     15.76       0      0    0    0    0    0  (cfs)
  S193:       ______
  S191:        19.60     15.73       0    0.0  0.0  0.0
  S135 Pumps:  13.40     15.67       0      0    0    0    0       (cfs)
  S135 Culverts:                  -NR-   -NR- -NR-
 
North West Shore
  S65E:        21.07     15.52    1727    0.6  0.6  0.6  1.3  0.6  1.3
  S65EX1:      21.07     15.52       0
  S127 Pumps:  13.49     15.74       0      0    0    0    0    0  (cfs)
  S127 Culvert:                      0    0.0
 
  S129 Pumps:  12.91     15.82       0      0    0    0            (cfs)
  S129 Culvert:                      0    0.0
 
  S131 Pumps:  12.87     15.86       0      0    0                 (cfs)
  S131 Culvert:                      0
 
  Fisheating Creek
    nr Palmdale          31.73     210
    nr Lakeport         ______
  C5:         ______     -NR-        0     -NR- -NR- -NR-
 
South Shore
  S4 Pumps:    11.87     15.89       0      0    0    0            (cfs)
  S169:       ______      -NR-    -NR-   -NR- -NR- -NR-
  S310:        15.84               125
  S3 Pumps:     9.32     15.84       0      0    0    0            (cfs)
  S354:        15.84      9.32       0    0.0  0.0
  S2 Pumps:    10.10      -NR-       0   -NR- -NR- -NR- -NR-       (cfs)
  S351:         -NR-     10.10       0    0.0  0.0  0.0
  S352:        15.94      9.91      29    0.1  0.0
  C10A:         -NR-     15.91            8.0   8.0   8.0   0.0   0.0
  L8 Canal PT           ______    -NR-
 
  _________________________________________________________________________
                   S351 and S352 Temporary Pumps/S354 Spillway
 
  S351:        10.10      -NR-       0  -NR--NR--NR--NR--NR--NR-
  S352:         9.91     15.94      29  -NR--NR--NR--NR-
  S354:         9.32     15.84       0  -NR--NR--NR--NR-
  _________________________________________________________________________
 
Caloosahatchee River (S77, S78, S79)
  S47B:        13.18     12.72            2.8  3.3
  S47D:        12.47     11.54     127    1.4
  S77:
    Spillway and Sector Preferred Flow:
               15.69     11.43     176  0.2  0.2  0.2  0.2
    Flow Due to Lockages+:           4
 
  S78:
    Spillway and Sector Flow:
               11.46      2.85     106    0.2  0.0  0.0  0.2
    Flow Due to Lockages+:        -NR-
 
  S79:
    Spillway and Sector Flow:
                3.00      1.43     591    0.0  0.0  0.0  2.3  0.0  0.0  0.0  0.0
    Flow Due to Lockages+:           6
    Percent of flow from S77        30%
    Chloride            (ppm)      0
 
 
St. Lucie Canal (S308, S80)
  S308:
    Spillway and Sector Preferred Flow:
               15.82     14.62       0  0.0  0.0  0.0  0.0
    Flow Due to Lockages+:           5
 
  S153:        18.77     14.27      27    0.1  0.0
  S80:
    Spillway and Sector Flow:
               14.58      1.45       0    0.0  0.0  0.0  0.0  0.0  0.0  0.0
    Flow Due to Lockages+:          25
    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:                         0.00        0.00        0.00       16       4
  S78:                         0.00        0.00        0.00      341       1
  S79:                        -0.64       -0.64       -1.28      342       4
  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:                        2.03        2.03        2.03       49       5
  S80:                         6.15        6.35        6.35        8       1
        Okeechobee Average     1.01        0.16        0.16
        (Sites S78, S79 and S80 not included)
  -----------------------------------------------------------------
  Oke Nexrad Basin Avg         -NR-        0.00        0.00
  -----------------------------------------------------------------
 
 
______________________________________________________________________________
Okeechobee Lake Elevations  23 OCT 2021           15.84 Difference from 23OCT21
   23OCT21  -1 Day  =       22 OCT 2021           15.83            -0.01
   23OCT21  -2 Days =       21 OCT 2021           15.83            -0.01
   23OCT21  -3 Days =       20 OCT 2021           15.83            -0.01
   23OCT21  -4 Days =       19 OCT 2021           15.84             0.00
   23OCT21  -5 Days =       18 OCT 2021           15.86             0.02
   23OCT21  -6 Days =       17 OCT 2021           15.88             0.04
   23OCT21  -7 Days =       16 OCT 2021           15.88             0.04
   23OCT21 -30 Days =       23 SEP 2021           15.25            -0.59
   23OCT21  -1 Year =       23 OCT 2020           16.35             0.51
   23OCT21  -2 Year =       23 OCT 2019           13.48            -2.36
______________________________________________________________________________
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
   23OCT21    Today =       23 OCT 2021      1226  SUN     |      2373
   23OCT21  -1 Day  =       22 OCT 2021      2760  SAT     |       250
   23OCT21  -2 Days =       21 OCT 2021      3052  FRI     |       429
   23OCT21  -3 Days =       20 OCT 2021      3177  THU     |     -1813
   23OCT21  -4 Days =       19 OCT 2021      3617  WED     |     -3976
   23OCT21  -5 Days =       18 OCT 2021      4056  TUE     |     -3942
   23OCT21  -6 Days =       17 OCT 2021      4492  MON     |         0
   23OCT21  -7 Days =       16 OCT 2021      4802  SUN     |         0
   23OCT21  -8 Days =       15 OCT 2021      4802  SAT     |      4336
   23OCT21  -9 Days =       14 OCT 2021      4802  FRI     |         0
   23OCT21 -10 Days =       13 OCT 2021      5111  THU     |      4336
   23OCT21 -11 Days =       12 OCT 2021      5111  WED     |      2168
   23OCT21 -12 Days =       11 OCT 2021      5576  TUE     |         0
   23OCT21 -13 Days =       10 OCT 2021      6195  MON     |     13008
______________________________________________________________________________
______________________________________________________________________________
                                 S65E
                       Average Flow over previous 14 days  |  Avg-Daily Flow
   23OCT21     Today=       23 OCT 2021      1977  SUN     |      1888
   23OCT21  -1 Day  =       22 OCT 2021      2010  SAT     |      1740
   23OCT21  -2 Days =       21 OCT 2021      2049  FRI     |      1880
   23OCT21  -3 Days =       20 OCT 2021      2061  THU     |      1916
   23OCT21  -4 Days =       19 OCT 2021      2101  WED     |      1992
   23OCT21  -5 Days =       18 OCT 2021      2139  TUE     |      2018
   23OCT21  -6 Days =       17 OCT 2021      2177  MON     |      2045
   23OCT21  -7 Days =       16 OCT 2021      2233  SUN     |      2069
   23OCT21  -8 Days =       15 OCT 2021      2290  SAT     |      2051
   23OCT21  -9 Days =       14 OCT 2021      2345  FRI     |      2042
   23OCT21 -10 Days =       13 OCT 2021      2429  THU     |      2058
   23OCT21 -11 Days =       12 OCT 2021      2519  WED     |      1959
   23OCT21 -12 Days =       11 OCT 2021      2643  TUE     |      1905
   23OCT21 -13 Days =       10 OCT 2021      2776  MON     |      2121
______________________________________________________________________________
______________________________________________________________________________
                                 S65EX1
                       Average Flow over previous 14 days  |  Avg-Daily Flow
   23OCT21     Today=       23 OCT 2021         0   SUN     |         0
   23OCT21  -1 Day  =       22 OCT 2021         0   SAT     |         0
   23OCT21  -2 Days =       21 OCT 2021         0   FRI     |         0
   23OCT21  -3 Days =       20 OCT 2021         0   THU     |         0
   23OCT21  -4 Days =       19 OCT 2021         0   WED     |         0
   23OCT21  -5 Days =       18 OCT 2021         0   TUE     |         0
   23OCT21  -6 Days =       17 OCT 2021         0   MON     |         0
   23OCT21  -7 Days =       16 OCT 2021         0   SUN     |         0
   23OCT21  -8 Days =       15 OCT 2021         0   SAT     |         0
   23OCT21  -9 Days =       14 OCT 2021         0   FRI     |         0
   23OCT21 -10 Days =       13 OCT 2021         0   THU     |         0
   23OCT21 -11 Days =       12 OCT 2021         0   WED     |         0
   23OCT21 -12 Days =       11 OCT 2021         0   TUE     |         0
   23OCT21 -13 Days =       10 OCT 2021         0   MON     |         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)
23 OCT 2021    353        720        -NR-       1178
22 OCT 2021    370        320          21        675
21 OCT 2021    383        324          28        195
20 OCT 2021    151        239          20       1440
19 OCT 2021     13        -16         117       1046
18 OCT 2021      9         66         595       2928
17 OCT 2021     12         50         676       2945
16 OCT 2021     14        256          18       2723
15 OCT 2021      7         30         426       2469
14 OCT 2021      7        124        1260       5508
13 OCT 2021     12        257        1292       4383
12 OCT 2021      7        152        1196       7980
11 OCT 2021      8         77        1340       5737
10 OCT 2021     15         84        2165       7805
 
             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)
23 OCT 2021    247          0        58           0       -NR-
22 OCT 2021     12          0        60          72       -NR-
21 OCT 2021     71          0       287         199       -NR-
20 OCT 2021     76          0       355         215       -NR-
19 OCT 2021     25          0       237         478       -NR-
18 OCT 2021      2          0       267         514       -NR-
17 OCT 2021    181          0         0           0       -NR-
16 OCT 2021    213          0         0           0       -NR-
15 OCT 2021      6          0         0           0       -NR-
14 OCT 2021      3          0         0           0       -NR-
13 OCT 2021      4          0         0           0       -NR-
12 OCT 2021      8          0         0           0       -NR-
11 OCT 2021      5          0         0           0       -NR-
10 OCT 2021      8          0         0           0     -25556
 
             S-308    Below S-308    S-80
           Discharge   Discharge   Discharge
           (ALL DAY)   (ALL-DAY)   (ALL-DAY)
   DATE     (AC-FT)     (AC-FT)     (AC-FT)
23 OCT 2021     10        -NR-          50
22 OCT 2021      6        -NR-          33
21 OCT 2021      5        -NR-          29
20 OCT 2021      8           9          40
19 OCT 2021      7          70         149
18 OCT 2021      2          -5         461
17 OCT 2021      6          92         494
16 OCT 2021      6        -113         475
15 OCT 2021      3         -83         337
14 OCT 2021      5         -73          37
13 OCT 2021      4         -44         450
12 OCT 2021      4         134        1057
11 OCT 2021      4          -1         951
10 OCT 2021      3         -66        1408
 
***  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 24OCT2021 @ 09:15  ** Preliminary Data - Subject to Revision **