oke
               U. S. Army Corps of Engineers, Jacksonville District
                       Lake Okeechobee and Vicinity Report
                   ** Preliminary Data - Subject to Revision **
 
Data Ending 2400 hours   27 SEP 2020
_____________________________________________________________________________
 
Okeechobee Lake Regulation      Elevation   Last Year  2YRS Ago
                                (ft-NGVD)   (ft-NGVD)  (ft-NGVD)
  *Okeechobee Lake Elevation       15.43       13.66    14.63 (Official Elv)
  Bottom of High Lake Mngmt= 16.69  Top of Water Short Mngmt= 12.94
  Currently in Operational Management Band
 
  Simulated Average LORS2008 [1965-2000]    13.73
  Difference from Average LORS2008          1.70
 
  27SEP (1965-2007) Period of Record Average    14.83
  Difference from POR Average                   0.60
 
  Today Lake Okeechobee elevation is determined from the 4 Int & 4 Edge stations
 
  ++Navigation Depth (Based on 2007 Channel Condition Survey) Route 1 ÷  9.37'
  ++Navigation Depth (Based on 2008 Channel Condition Survey) Route 2 ÷  7.57'
  Bridge Clearance = 49.25'
______________________________________________________________________________
 
4 Interior and 4 Edge Okeechobee Lake Average (Avg-Daily values):
 
  L001   L005   L006   LZ40   S4     S352   S308   S133
  15.41  15.48  15.44  15.40  15.45  15.52   16.63 15.36
 
 
 *Combination Okeechobee  Avg-Daily Lake Average =  15.43
                                                   (*See Note)
______________________________________________________________________________
 
Okeechobee Inflows (cfs):
  S65E           4009      S65EX1          952      Fisheating Cr   845
  S154            175      S191            934      S135 Pumps      172
  S84            1414      S133 Pumps      396      S2 Pumps          0
  S84X            393      S127 Pumps        0      S3 Pumps          0
  S71             554      S129 Pumps        0      S4 Pumps          0
  S72             130      S131 Pumps        0      C5                0
Total Inflows:   9976
 
Okeechobee Outflows (cfs):
  S135 Culverts     0      S354              0      S77            -NR-
  S127 Culverts     0      S351            474      S308              6
  S129 Culverts     0      S352            387
  S131 Culverts     0      L8 Canal Pt    -NR-
Total Outflows:  No Report Due To Missing S77 or S308 Discharge Data
 
****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            -NR-      S308           -NR-
  Average Pan Evap x 0.75 Pan Coefficient =  -NR-" =  -NR-'
 
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  13008 cfs or  25800 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:  13.25     15.33     396     51  119  113   39   61  (cfs)
  S193:       ______
  S191:        18.52     15.35     934    1.0  0.4  1.0
  S135 Pumps:  13.32     15.28     172     55   43   37   43       (cfs)
  S135 Culverts:                     0    0.1  0.0
 
North West Shore
  S65E:        21.14     15.34    4009    2.0  1.4  1.9  1.5  2.0  2.0
  S65EX1:      21.14     15.34     952
  S127 Pumps:  13.55     15.39       0      0    0    0    0    0  (cfs)
  S127 Culvert:                      0    0.0
 
  S129 Pumps:  13.16     15.47       0      0    0    0            (cfs)
  S129 Culvert:                      0    0.0
 
  S131 Pumps:  12.94     15.50       0      0    0                 (cfs)
  S131 Culvert:                      0
 
  Fisheating Creek
    nr Palmdale          32.81     845
    nr Lakeport         ______
  C5:         ______     -NR-        0     -NR- -NR- -NR-
 
South Shore
  S4 Pumps:    12.34     15.49       0      0    0    0            (cfs)
  S169:        14.95     12.39     245    0.0  0.0  0.0
  S310:        15.44               167
  S3 Pumps:     9.91     15.49       0      0    0    0            (cfs)
  S354:        15.49      9.91       0    0.0  0.0
  S2 Pumps:     9.73      -NR-       0   -NR- -NR- -NR- -NR-       (cfs)
  S351:         -NR-      9.73     474    0.5  0.5  0.5
  S352:        15.54      9.82     387    0.6  0.6
  C10A:         -NR-     15.55            8.0   8.0   8.0   0.0   0.0
  L8 Canal PT           ______    -NR-
 
  _________________________________________________________________________
                   S351 and S352 Temporary Pumps/S354 Spillway
 
  S351:         9.73      -NR-     474  -NR--NR--NR--NR--NR--NR-
  S352:         9.82     15.54     387  -NR--NR--NR--NR-
  S354:         9.91     15.49       0  -NR--NR--NR--NR-
  _________________________________________________________________________
 
Caloosahatchee River (S77, S78, S79)
  S47B:        14.32     10.71            0.0  0.0
  S47D:        10.74     10.92       0    0.0
  S77:
    Spillway and Sector Preferred Flow:
               15.39     10.81       0  0.0  0.0  0.0  0.0
    Flow Due to Lockages+:        -NR-
 
  S78:
    Spillway and Sector Flow:
               10.87      2.72     783    1.5  0.0  0.0  0.5
    Flow Due to Lockages+:        -NR-
 
  S79:
    Spillway and Sector Flow:
                3.06      1.82    2512    3.0  3.0  3.0  3.0  3.0  0.0  0.0  0.0
    Flow Due to Lockages+:        -NR-
    Percent of flow from S77         0%
    Chloride            (ppm)     -N
 
 
St. Lucie Canal (S308, S80)
  S308:
    Spillway and Sector Preferred Flow:
               16.67     14.25       0  0.0  0.0  0.0  0.0
    Flow Due to Lockages+:           6
 
  S153:        18.76     14.03     136    0.0  0.2
  S80:
    Spillway and Sector Flow:
               14.27      1.65     151    0.0  0.0  0.0  0.0  0.0  0.0  0.0
    Flow Due to Lockages+:          20
    Percent of flow from S308        0%
 
  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-        0.79        0.89       88       6
  S78:                         -NR-        0.00        0.07       60       7
  S79:                         -NR-        0.00        0.00        0       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        1.98      163       3
  S80:                         -NR-        0.06        0.27       78       1
        Okeechobee Average     -NR-        0.06        0.22
        (Sites S78, S79 and S80 not included)
  -----------------------------------------------------------------
  Oke Nexrad Basin Avg         -NR-        0.62        0.89
  -----------------------------------------------------------------
 
 
______________________________________________________________________________
Okeechobee Lake Elevations  27 SEP 2020           15.43 Difference from 27SEP20
   27SEP20  -1 Day  =       26 SEP 2020           15.37            -0.06
   27SEP20  -2 Days =       25 SEP 2020           15.33            -0.10
   27SEP20  -3 Days =       24 SEP 2020           15.27            -0.16
   27SEP20  -4 Days =       23 SEP 2020           15.24            -0.19
   27SEP20  -5 Days =       22 SEP 2020           15.22            -0.21
   27SEP20  -6 Days =       21 SEP 2020           15.19            -0.24
   27SEP20  -7 Days =       20 SEP 2020           15.17            -0.26
   27SEP20 -30 Days =       28 AUG 2020           14.19            -1.24
   27SEP20  -1 Year =       27 SEP 2019           13.66            -1.77
   27SEP20  -2 Year =       27 SEP 2018           14.63            -0.80
______________________________________________________________________________
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
   27SEP20    Today =       27 SEP 2020      8486  MON     |      -NR-
   27SEP20  -1 Day  =       26 SEP 2020      9001  SUN     |      -NR-
   27SEP20  -2 Days =       25 SEP 2020      8664  SAT     |     13764
   27SEP20  -3 Days =       24 SEP 2020      8437  FRI     |      7246
   27SEP20  -4 Days =       23 SEP 2020      8827  THU     |      4923
   27SEP20  -5 Days =       22 SEP 2020      8929  WED     |      6964
   27SEP20  -6 Days =       21 SEP 2020      9037  TUE     |      4896
   27SEP20  -7 Days =       20 SEP 2020     10351  MON     |       611
   27SEP20  -8 Days =       19 SEP 2020     11546  SUN     |      4899
   27SEP20  -9 Days =       18 SEP 2020     11509  SAT     |      9174
   27SEP20 -10 Days =       17 SEP 2020     11009  FRI     |     15175
   27SEP20 -11 Days =       16 SEP 2020     10079  THU     |     10789
   27SEP20 -12 Days =       15 SEP 2020      9463  WED     |      8470
   27SEP20 -13 Days =       14 SEP 2020      9330  TUE     |     14923
______________________________________________________________________________
______________________________________________________________________________
                                 S65E
                       Average Flow over previous 14 days  |  Avg-Daily Flow
   27SEP20     Today=       27 SEP 2020      3720  MON     |      4244
   27SEP20  -1 Day  =       26 SEP 2020      3606  SUN     |      4278
   27SEP20  -2 Days =       25 SEP 2020      3512  SAT     |      4162
   27SEP20  -3 Days =       24 SEP 2020      3395  FRI     |      4452
   27SEP20  -4 Days =       23 SEP 2020      3252  THU     |      4622
   27SEP20  -5 Days =       22 SEP 2020      3108  WED     |      4306
   27SEP20  -6 Days =       21 SEP 2020      3006  TUE     |      3868
   27SEP20  -7 Days =       20 SEP 2020      2935  MON     |      3344
   27SEP20  -8 Days =       19 SEP 2020      2905  SUN     |      3313
   27SEP20  -9 Days =       18 SEP 2020      2877  SAT     |      3335
   27SEP20 -10 Days =       17 SEP 2020      2860  FRI     |      3260
   27SEP20 -11 Days =       16 SEP 2020      2850  THU     |      3310
   27SEP20 -12 Days =       15 SEP 2020      2835  WED     |      2869
   27SEP20 -13 Days =       14 SEP 2020      2862  TUE     |      2712
______________________________________________________________________________
______________________________________________________________________________
                                 S65EX1
                       Average Flow over previous 14 days  |  Avg-Daily Flow
   27SEP20     Today=       27 SEP 2020       970   MON     |       952
   27SEP20  -1 Day  =       26 SEP 2020       978   SUN     |       958
   27SEP20  -2 Days =       25 SEP 2020       985   SAT     |       963
   27SEP20  -3 Days =       24 SEP 2020       994   FRI     |       944
   27SEP20  -4 Days =       23 SEP 2020      1006   THU     |       962
   27SEP20  -5 Days =       22 SEP 2020      1024   WED     |       971
   27SEP20  -6 Days =       21 SEP 2020      1028   TUE     |       976
   27SEP20  -7 Days =       20 SEP 2020      1036   MON     |       977
   27SEP20  -8 Days =       19 SEP 2020      1062   SUN     |       973
   27SEP20  -9 Days =       18 SEP 2020      1088   SAT     |       963
   27SEP20 -10 Days =       17 SEP 2020      1129   FRI     |       972
   27SEP20 -11 Days =       16 SEP 2020      1169   THU     |       964
   27SEP20 -12 Days =       15 SEP 2020      1210   WED     |       978
   27SEP20 -13 Days =       14 SEP 2020      1246   TUE     |      1020
______________________________________________________________________________
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)
27 SEP 2020   -NR-        795        -NR-       -NR-
26 SEP 2020      7        499         448       4231
25 SEP 2020     11        262         311       5008
24 SEP 2020      5        144         666       6611
23 SEP 2020      6        656        1777       8536
22 SEP 2020      5        691        1736      10814
21 SEP 2020      1        821        1774       -NR-
20 SEP 2020      7        946        2054       7771
19 SEP 2020     10        884        2182       7808
18 SEP 2020      5        948        2427       6973
17 SEP 2020      6        943        2682       8979
16 SEP 2020      4        807        2393      10389
15 SEP 2020      8        720        2018      10562
14 SEP 2020      3        594        1754      11742
 
             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)
27 SEP 2020    331        939       767           0       -NR-
26 SEP 2020    145        921       578           0       -NR-
25 SEP 2020     43        923       577           0       -347
24 SEP 2020     27        925       546           0       -337
23 SEP 2020    -46        932       231           0       -327
22 SEP 2020      0        913         0           0       -398
21 SEP 2020   -NR-        983       128           0       -518
20 SEP 2020   -NR-       1108       102           0       -214
19 SEP 2020   -440       1085        32           0       -244
18 SEP 2020   -373        728       268           0       -228
17 SEP 2020   -269          0         0           0       -314
16 SEP 2020   -270          0         0           0       -331
15 SEP 2020   -177          0         0           0       -526
14 SEP 2020   -183          0         0           0       -643
 
             S-308    Below S-308    S-80
           Discharge   Discharge   Discharge
           (ALL DAY)   (ALL-DAY)   (ALL-DAY)
   DATE     (AC-FT)     (AC-FT)     (AC-FT)
27 SEP 2020     12         126         339
26 SEP 2020      6         -93         970
25 SEP 2020     11        -113        -NR-
24 SEP 2020      8         -54         315
23 SEP 2020      6          77         866
22 SEP 2020      5          65         944
21 SEP 2020      1        -132        -NR-
20 SEP 2020      3          16        -NR-
19 SEP 2020      7          38        -NR-
18 SEP 2020      4         -90        -NR-
17 SEP 2020      4        -116         730
16 SEP 2020      2        -149         781
15 SEP 2020      5         -70        1199
14 SEP 2020      4        -NR-        2310
 
***  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 28SEP2020 @ 05:15  ** Preliminary Data - Subject to Revision **