Report
               U. S. Army Corps of Engineers, Jacksonville District
                       Lake Okeechobee and Vicinity Report
                   ** Preliminary Data - Subject to Revision **
 
Data Ending 2400 hours   17 AUG 2017
_____________________________________________________________________________
 
Okeechobee Lake Regulation      Elevation   Last Year  2YRS Ago
                                (ft-NGVD)   (ft-NGVD)  (ft-NGVD)
  *Okeechobee Lake Elevation       13.36       14.75    12.49 (Official Elv)
  Bottom of High Lake Mngmt= 16.36  Top of Water Short Mngmt= 12.09
  Currently in Operational Management Band
 
  Simulated Average LORS2008 [1965-2000]    12.98
  Difference from Average LORS2008          0.38
 
  17AUG (1965-2007) Period of Record Average    14.02
  Difference from POR Average                  -0.66
 
  Today Lake Okeechobee elevation is determined from the 4 Int & 4 Edge stations
 
  ++Navigation Depth (Based on 2007 Channel Condition Survey) Route 1 ÷  7.30'
  ++Navigation Depth (Based on 2008 Channel Condition Survey) Route 2 ÷  5.50'
  Bridge Clearance = 50.20'
______________________________________________________________________________
 
4 Interior and 4 Edge Okeechobee Lake Average (Avg-Daily values):
 
  L001   L005   L006   LZ40   S4     S352   S308   S133
  13.25  13.39  13.38  13.34  13.38  13.52   13.29 13.29
 
 
 *Combination Okeechobee  Avg-Daily Lake Average =  13.36
                                                   (*See Note)
______________________________________________________________________________
 
Okeechobee Inflows (cfs):
  S65E              0      S65EX1         2284      Fisheating Cr   605
  S154             94      S191            185      S135 Pumps        0
  S84             160      S133 Pumps        0      S2 Pumps         39
  S84X            586      S127 Pumps       28      S3 Pumps          0
  S71             241      S129 Pumps       18      S4 Pumps          0
  S72             118      S131 Pumps       17      C5                0
Total Inflows:   4376
 
Okeechobee Outflows (cfs):
  S135 Culverts  -NR-      S354              0      S77               2
  S127 Culverts     0      S351              0      S308           -450
  S129 Culverts     0      S352              0
  S131 Culverts     0      L8 Canal Pt    -195
Total Outflows:   -643
 
****S77 structure flow is being used to compute Total Outflow.
****S308 below flow meter is being used to compute Total Outflow.
 
Okeechobee Pan Evaporation (inches):
  S77            0.18      S308           0.28
  Average Pan Evap x 0.75 Pan Coefficient =  0.17" =  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   2118 cfs or   4200 AC-FT
______________________________________________________________________________
______________________________________________________________________________
 
 
 
Note: Headwater, tailwater, and stage values below are instantaneous values
      unless otherwise specified.
 
             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     13.12       0      0    0    0    0    0  (cfs)
  S193:       ______
  S191:        18.87     13.11     185    0.3  0.0  0.2
  S135 Pumps:  13.39     13.37       0      0    0    0    0       (cfs)
  S135 Culverts:                  -NR-   -NR- -NR-
 
North West Shore
  S65E:        20.93     12.91       0    0.0  0.0  0.0  0.0  0.0  0.0
  S65EX1:      20.93     12.91    2284
  S127 Pumps:  13.34     13.23      28     25    0    0    0    0  (cfs)
  S127 Culvert:                      0    0.0
 
  S129 Pumps:  12.88     13.41      18      0   19    0            (cfs)
  S129 Culvert:                      0    0.0
 
  S131 Pumps:  12.78     13.41      17     19    0                 (cfs)
  S131 Culvert:                      0
 
  Fisheating Creek
    nr Palmdale          32.29     605
    nr Lakeport         ______
  C5:         ______     -NR-        0     -NR- -NR- -NR-
 
South Shore
  S4 Pumps:    10.78     13.48       0      0    0    0            (cfs)
  S169:        13.63     10.80       0    0.0  0.0  0.0
  S310:        13.74               -69
  S3 Pumps:    10.21     13.73       0      0    0    0            (cfs)
  S354:        13.73     10.21       0    0.0  0.0
  S2 Pumps:    10.72     13.68      39      0    0    0   39       (cfs)
  S351:        13.68     10.72       0    0.0  0.0  0.0
  S352:        13.65      9.39       0    0.0  0.0
  C10A:         -NR-     13.73            8.0   8.0   8.0   0.0   0.0
  L8 Canal PT            13.30    -195
 
  _________________________________________________________________________
                   S351 and S352 Temporary Pumps/S354 Spillway
 
  S351:        10.72     13.68       0  -NR--NR--NR--NR--NR--NR-
  S352:         9.39     13.65       0  -NR--NR--NR--NR-
  S354:        10.21     13.73       0  -NR--NR--NR--NR-
  _________________________________________________________________________
 
Caloosahatchee River (S77, S78, S79)
  S47B:        12.23     10.36            0.0  0.0
  S47D:        10.38     10.37      12    6.5
  S77:
    Spillway and Sector Flow:
               13.43     10.48    0.00  0.0  0.0  0.0  0.0
    Flow Due to Lockages+:           2
 
  S77 Below USGS Flow Gage          91
 
  S78:
    Spillway and Sector Flow:
               10.19      3.51     763    1.0  0.0  0.0  1.5
    Flow Due to Lockages+:           5
 
  S79:
    Spillway and Sector Flow:
                3.17      1.19    2012    1.0  1.0  1.0  1.5  1.5  1.0  1.0  1.0
    Flow Due to Lockages+:           4
    Percent of flow from S77         0%
    Chloride            (ppm)     53
 
 
St. Lucie Canal (S308, S80)
  S308:
    Spillway and Sector Flow:
               13.28     13.30  ******  2.3  2.3  2.3  2.3
    Flow Due to Lockages+:           0
 
  S308 Below USGS Flow Gage       -450
  S153:        18.65     13.28     155    0.5  0.1
  S80:
    Spillway and Sector Flow:
               13.46      0.62       0    0.0  0.0  0.0  0.0  0.0  0.0  0.0
    Flow Due to Lockages+:           9
    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.
______________________________________________________________________________
                                                               ----- 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:                         0.16        0.99        2.09       54       0
  S78:                         0.01        0.75        2.34      234       3
  S79:                         0.01      -46.84      -46.34      228       0
  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:                        0.05        0.05        0.37       94       3
  S80:                         0.00        0.00        0.00        0       0
        Okeechobee Average     0.10        0.08        0.19
        (Sites S78, S79 and S80 not included)
  -----------------------------------------------------------------
  Oke Nexrad Basin Avg         -NR-        0.00        0.00
  -----------------------------------------------------------------
 
 
______________________________________________________________________________
Okeechobee Lake Elevations  17 AUG 2017           13.36 Difference from 17AUG17
   17AUG17  -1 Day  =       16 AUG 2017           13.35            -0.01
   17AUG17  -2 Days =       15 AUG 2017           13.33            -0.03
   17AUG17  -3 Days =       14 AUG 2017           13.31            -0.05
   17AUG17  -4 Days =       13 AUG 2017           13.27            -0.09
   17AUG17  -5 Days =       12 AUG 2017           13.22            -0.14
   17AUG17  -6 Days =       11 AUG 2017           13.17            -0.19
   17AUG17  -7 Days =       10 AUG 2017           13.08            -0.28
   17AUG17 -30 Days =       18 JUL 2017           12.60            -0.76
   17AUG17  -1 Year =       17 AUG 2016           14.75             1.39
   17AUG17  -2 Year =       17 AUG 2015           12.49            -0.87
______________________________________________________________________________
Long Term Mean 30day Avearge ET for Lake Alfred (Inches) =  4.40
______________________________________________________________________________
                         Lake Okeechobee Net Inflow (LONIN)
                   Average Flow over the previous 14 days  |  Avg-Daily Flow
   17AUG17    Today =       17 AUG 2017      4975  FRI     |      2118
   17AUG17  -1 Day  =       16 AUG 2017      5861  THU     |      4248
   17AUG17  -2 Days =       15 AUG 2017      5838  WED     |      4307
   17AUG17  -3 Days =       14 AUG 2017      7605  TUE     |      8501
   17AUG17  -4 Days =       13 AUG 2017      8118  MON     |     10612
   17AUG17  -5 Days =       12 AUG 2017      7502  SUN     |     10588
   17AUG17  -6 Days =       11 AUG 2017      6760  SAT     |     19295
   17AUG17  -7 Days =       10 AUG 2017      5396  FRI     |      2766
   17AUG17  -8 Days =       09 AUG 2017      5199  THU     |     -1139
   17AUG17  -9 Days =       08 AUG 2017      5280  WED     |     -1100
   17AUG17 -10 Days =       07 AUG 2017      5771  TUE     |       612
   17AUG17 -11 Days =       06 AUG 2017      6201  MON     |       116
   17AUG17 -12 Days =       05 AUG 2017      6364  SUN     |      2373
   17AUG17 -13 Days =       04 AUG 2017      6326  SAT     |      6353
______________________________________________________________________________
______________________________________________________________________________
                                 S65E
                       Average Flow over previous 14 days  |  Avg-Daily Flow
   17AUG17     Today=       17 AUG 2017        19  FRI     |         0
   17AUG17  -1 Day  =       16 AUG 2017        50  THU     |         0
   17AUG17  -2 Days =       15 AUG 2017        50  WED     |         0
   17AUG17  -3 Days =       14 AUG 2017        50  TUE     |         0
   17AUG17  -4 Days =       13 AUG 2017        50  MON     |         0
   17AUG17  -5 Days =       12 AUG 2017        50  SUN     |         0
   17AUG17  -6 Days =       11 AUG 2017        50  SAT     |         0
   17AUG17  -7 Days =       10 AUG 2017        50  FRI     |         0
   17AUG17  -8 Days =       09 AUG 2017        50  THU     |         0
   17AUG17  -9 Days =       08 AUG 2017        50  WED     |         0
   17AUG17 -10 Days =       07 AUG 2017        50  TUE     |         0
   17AUG17 -11 Days =       06 AUG 2017        50  MON     |         0
   17AUG17 -12 Days =       05 AUG 2017        50  SUN     |         0
   17AUG17 -13 Days =       04 AUG 2017        50  SAT     |       265
______________________________________________________________________________
______________________________________________________________________________
                                 S65EX1
                       Average Flow over previous 14 days  |  Avg-Daily Flow
   17AUG17     Today=       17 AUG 2017      2353   FRI     |      2284
   17AUG17  -1 Day  =       16 AUG 2017      2363   THU     |      2405
   17AUG17  -2 Days =       15 AUG 2017      2333   WED     |      2455
   17AUG17  -3 Days =       14 AUG 2017      2284   TUE     |      2375
   17AUG17  -4 Days =       13 AUG 2017      2210   MON     |      2043
   17AUG17  -5 Days =       12 AUG 2017      2153   SUN     |      2020
   17AUG17  -6 Days =       11 AUG 2017      2098   SAT     |      2095
   17AUG17  -7 Days =       10 AUG 2017      2038   FRI     |      2123
   17AUG17  -8 Days =       09 AUG 2017      1977   THU     |      2248
   17AUG17  -9 Days =       08 AUG 2017      1912   WED     |      2405
   17AUG17 -10 Days =       07 AUG 2017      1874   TUE     |      2472
   17AUG17 -11 Days =       06 AUG 2017      1824   MON     |      2642
   17AUG17 -12 Days =       05 AUG 2017      1722   SUN     |      2772
   17AUG17 -13 Days =       04 AUG 2017      1610   SAT     |      2596
______________________________________________________________________________
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)
17 AUG 2017      5        181        1522       4030
16 AUG 2017      1        566        1581       3450
15 AUG 2017      2        760        1829       5422
14 AUG 2017      2        818        2479       5166
13 AUG 2017      6        604        1804       3633
12 AUG 2017      8        185         827       2230
11 AUG 2017    251        510          13       2078
10 AUG 2017    215        106          14        665
09 AUG 2017      4       -231         182       1594
08 AUG 2017    195        514         789       2551
07 AUG 2017    178        233        1256       3762
06 AUG 2017      3        194        1491       3679
05 AUG 2017      8        383        1625       5866
04 AUG 2017      5        916        3020       6664
 
             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)
17 AUG 2017   -137          0         0           0       -386
16 AUG 2017   -190          0         0           0         26
15 AUG 2017   -296          0         0           0        143
14 AUG 2017   -195          0         0           0         61
13 AUG 2017     -5          0         0           0         48
12 AUG 2017    -48          0         0           0        -49
11 AUG 2017    -43          0         0           0        217
10 AUG 2017      4          0       724           0        307
09 AUG 2017      3          0      1491           0        292
08 AUG 2017     20          0      1378           0        277
07 AUG 2017    -75          0       694           0        234
06 AUG 2017   -168          0         0           0        231
05 AUG 2017   -304          0       284           0        164
04 AUG 2017   -390          0         0           0       -176
 
             S-308    Below S-308    S-80
           Discharge   Discharge   Discharge
           (ALL DAY)   (ALL-DAY)   (ALL-DAY)
   DATE     (AC-FT)     (AC-FT)     (AC-FT)
17 AUG 2017  -1333        -892          18
16 AUG 2017   -735        -894          26
15 AUG 2017  -1238        -NR-          11
14 AUG 2017   -NR-        -NR-           7
13 AUG 2017  -1445        -528          26
12 AUG 2017   -771        -309          43
11 AUG 2017   -299        -324          40
10 AUG 2017   -852        -107          29
09 AUG 2017   -404         -75          11
08 AUG 2017   -297        -164          14
07 AUG 2017   -621        -264          39
06 AUG 2017   -889        -323          39
05 AUG 2017  -1055        -457          18
04 AUG 2017  -1415        -547          36
 
***  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 18AUG2017 @ 17:38  ** Preliminary Data - Subject to Revision **