U. S. Army Corps of Engineers, Jacksonville District
                       Lake Okeechobee and Vicinity Report
                   ** Preliminary Data - Subject to Revision **
 
Data Ending 2400 hours   22 JUN 2017
_____________________________________________________________________________
 
Okeechobee Lake Regulation      Elevation   Last Year  2YRS Ago
                                (ft-NGVD)   (ft-NGVD)  (ft-NGVD)
  *Okeechobee Lake Elevation       12.25       14.92    12.41 (Official Elv)
  Bottom of High Lake Mngmt= 16.10  Top of Water Short Mngmt= 10.93
  Currently in Operational Management Band
 
  Simulated Average LORS2008 [1965-2000]    12.09
  Difference from Average LORS2008          0.16
 
  22JUN (1965-2007) Period of Record Average    13.24
  Difference from POR Average                  -0.99
 
  Today Lake Okeechobee elevation is determined from the 4 Int & 4 Edge stations
 
  ++Navigation Depth (Based on 2007 Channel Condition Survey) Route 1 ÷  6.19'
  ++Navigation Depth (Based on 2008 Channel Condition Survey) Route 2 ÷  4.39'
  Bridge Clearance = 50.31'
______________________________________________________________________________
 
4 Interior and 4 Edge Okeechobee Lake Average (Avg-Daily values):
 
  L001   L005   L006   LZ40   S4     S352   S308   S133
  12.17  12.37  12.23  12.22  12.31  12.31   12.15 12.25
 
 
 *Combination Okeechobee  Avg-Daily Lake Average =  12.25
                                                   (*See Note)
______________________________________________________________________________
 
Okeechobee Inflows (cfs):
  S65E              0      S65EX1         1466      Fisheating Cr  1275
  S154              0      S191            169      S135 Pumps      357
  S84             874      S133 Pumps        0      S2 Pumps          0
  S84X              1      S127 Pumps        0      S3 Pumps          0
  S71             173      S129 Pumps       33      S4 Pumps          0
  S72              80      S131 Pumps        0      C5                0
Total Inflows:   4427
 
Okeechobee Outflows (cfs):
  S135 Culverts     0      S354              0      S77               2
  S127 Culverts    35      S351              0      S308           -681
  S129 Culverts     0      S352              0
  S131 Culverts    20      L8 Canal Pt    -421
Total Outflows:  -1045
 
****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            0.23      S308           0.32
  Average Pan Evap x 0.75 Pan Coefficient =  0.21" =  0.02'
 
Lake Average Precipitation using NEXRAD: =  0.00" =  0.00'
 
Evaporation - Precipitation:             =  0.21" =  0.02'
Evaporation - Precipitation using Lake Area of 730 square miles
  is equal to   4048 cfs out of the lake.
Lake Okeechobee (Change in Storage) Flow is   3933 cfs or   7800 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:  13.36     12.16       0      0    0    0    0    0  (cfs)
  S193:       ______
  S191:        18.80     12.14     169    0.5  0.0  0.5
  S135 Pumps:  13.30     12.07     357   -NR- -NR- -NR- -NR-       (cfs)
  S135 Culverts:                     0    0.0  0.0
 
North West Shore
  S65E:        20.96     12.00       0    0.0 -0.0  0.0  0.0 -0.0  0.0
  S65EX1:      20.96     12.00    1466
  S127 Pumps:  13.36     12.33       0      0    0    0    0    0  (cfs)
  S127 Culvert:                     35    0.5
 
  S129 Pumps: ______      -NR-      33      0    0   31            (cfs)
  S129 Culvert:                      0   -NR-
 
  S131 Pumps:  12.91     12.68       0      0    0                 (cfs)
  S131 Culvert:                     20
 
  Fisheating Creek
    nr Palmdale          33.07    1275
    nr Lakeport         ______
  C5:         ______     -NR-        0     -NR- -NR- -NR-
 
South Shore
  S4 Pumps:    12.45     12.36       0      0    0    0            (cfs)
  S169:        12.37     12.40    -142    5.0  5.0  5.0
  S310:        12.27              -172
  S3 Pumps:    10.59     12.24       0      0    0    0            (cfs)
  S354:        12.24     10.59       0    0.0  0.0
  S2 Pumps:     9.68     12.22       0      0    0    0    0       (cfs)
  S351:        12.22      9.68       0    0.0  0.0  0.0
  S352:        12.29      9.53       0    0.0  0.0
  C10A:         -NR-     12.58            8.0   8.0   8.0   0.0   0.0
  L8 Canal PT            12.43    -421
 
  _________________________________________________________________________
                   S351 and S352 Temporary Pumps/S354 Spillway
 
  S351:         9.68     12.22       0  -NR--NR--NR--NR--NR--NR-
  S352:         9.53     12.29       0  -NR--NR--NR--NR-
  S354:        10.59     12.24       0  -NR--NR--NR--NR-
  _________________________________________________________________________
 
Caloosahatchee River (S77, S78, S79)
  S47B:        13.35     11.02            0.5  1.0
  S47D:        11.03     11.02      52    6.2
  S77:
    Spillway and Sector Flow:
               12.49     11.12    0.00  0.0  0.0  0.0  0.0
    Flow Due to Lockages+:           2
 
  S77 Below USGS Flow Gage         -88
 
  S78:
    Spillway and Sector Flow:
               10.91      2.48     882    0.0  0.0  2.5  0.0
    Flow Due to Lockages+:          11
 
  S79:
    Spillway and Sector Flow:
                2.99      0.69    3098    1.0  1.0  2.0  2.0  2.0  2.0  1.0  1.0
    Flow Due to Lockages+:           4
    Percent of flow from S77         0%
    Chloride            (ppm)     74
 
 
St. Lucie Canal (S308, S80)
  S308:
    Spillway and Sector Flow:
               12.15     13.19  ******  1.0  1.5  1.5  1.0
    Flow Due to Lockages+:          -3
 
  S308 Below USGS Flow Gage       -677
  S153:        18.53     12.98     601    1.1  1.1
  S80:
    Spillway and Sector Flow:
                -NR-      -NR-    -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) 4053
  Speedy Point Bottom Salinity (mg/ml) 4435
 
 + 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:                         0.00        0.09        1.07      167       1
  S78:                         0.00        0.46        7.95      100       6
  S79:                         0.00        0.91        3.17      174       3
  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:                        0.00        0.02        0.71       99       2
  S80:                         0.00        0.00        0.07     -NR-    -NR-
        Okeechobee Average     0.00        0.01        0.14
        (Sites S78, S79 and S80 not included)
  -----------------------------------------------------------------
  Oke Nexrad Basin Avg         0.00        0.13        2.22
  -----------------------------------------------------------------
 
 
______________________________________________________________________________
Okeechobee Lake Elevations  22 JUN 2017           12.25 Difference from 22JUN17
   22JUN17  -1 Day  =       21 JUN 2017           12.23            -0.02
   22JUN17  -2 Days =       20 JUN 2017           12.21            -0.04
   22JUN17  -3 Days =       19 JUN 2017           12.15            -0.10
   22JUN17  -4 Days =       18 JUN 2017           12.05            -0.20
   22JUN17  -5 Days =       17 JUN 2017           11.99            -0.26
   22JUN17  -6 Days =       16 JUN 2017           11.93            -0.32
   22JUN17  -7 Days =       15 JUN 2017           11.84            -0.41
   22JUN17 -30 Days =       23 MAY 2017           11.10            -1.15
   22JUN17  -1 Year =       22 JUN 2016           14.92             2.67
   22JUN17  -2 Year =       22 JUN 2015           12.41             0.16
______________________________________________________________________________
Long Term Mean 30day Avearge ET for Lake Alfred (Inches) =  4.81
______________________________________________________________________________
                         Lake Okeechobee Net Inflow (LONIN)
                   Average Flow over the previous 14 days  |  Avg-Daily Flow
   22JUN17    Today =       22 JUN 2017      8463  FRI     |      3933
   22JUN17  -1 Day  =       21 JUN 2017      9994  THU     |      3933
   22JUN17  -2 Days =       20 JUN 2017     13177  WED     |     11545
   22JUN17  -3 Days =       19 JUN 2017     13872  TUE     |     19410
   22JUN17  -4 Days =       18 JUN 2017     12759  MON     |     11646
   22JUN17  -5 Days =       17 JUN 2017     12209  SUN     |     10890
   22JUN17  -6 Days =       16 JUN 2017     12437  SAT     |     16033
   22JUN17  -7 Days =       15 JUN 2017     11698  FRI     |      3529
   22JUN17  -8 Days =       14 JUN 2017     11363  THU     |      3529
   22JUN17  -9 Days =       13 JUN 2017     10819  WED     |      1822
   22JUN17 -10 Days =       12 JUN 2017     10351  TUE     |      3630
   22JUN17 -11 Days =       11 JUN 2017      9906  MON     |      9075
   22JUN17 -12 Days =       10 JUN 2017      9029  SUN     |      8924
   22JUN17 -13 Days =       09 JUN 2017      8136  SAT     |     10588
______________________________________________________________________________
______________________________________________________________________________
                                 S65E
                       Average Flow over previous 14 days  |  Avg-Daily Flow
   22JUN17     Today=       22 JUN 2017         0  FRI     |         0
   22JUN17  -1 Day  =       21 JUN 2017         0  THU     |         0
   22JUN17  -2 Days =       20 JUN 2017         0  WED     |         0
   22JUN17  -3 Days =       19 JUN 2017         0  TUE     |         0
   22JUN17  -4 Days =       18 JUN 2017         1  MON     |         0
   22JUN17  -5 Days =       17 JUN 2017         1  SUN     |         0
   22JUN17  -6 Days =       16 JUN 2017         1  SAT     |         0
   22JUN17  -7 Days =       15 JUN 2017         1  FRI     |         0
   22JUN17  -8 Days =       14 JUN 2017         1  THU     |         0
   22JUN17  -9 Days =       13 JUN 2017         1  WED     |         0
   22JUN17 -10 Days =       12 JUN 2017         1  TUE     |         0
   22JUN17 -11 Days =       11 JUN 2017         1  MON     |         0
   22JUN17 -12 Days =       10 JUN 2017         1  SUN     |         0
   22JUN17 -13 Days =       09 JUN 2017         1  SAT     |         0
______________________________________________________________________________
______________________________________________________________________________
                                 S65EX1
                       Average Flow over previous 14 days  |  Avg-Daily Flow
   22JUN17     Today=       22 JUN 2017       811   FRI     |      1466
   22JUN17  -1 Day  =       21 JUN 2017       735   THU     |      1431
   22JUN17  -2 Days =       20 JUN 2017       659   WED     |      1367
   22JUN17  -3 Days =       19 JUN 2017       578   TUE     |      1348
   22JUN17  -4 Days =       18 JUN 2017       492   MON     |      1250
   22JUN17  -5 Days =       17 JUN 2017       417   SUN     |      1026
   22JUN17  -6 Days =       16 JUN 2017       360   SAT     |       763
   22JUN17  -7 Days =       15 JUN 2017       336   FRI     |       367
   22JUN17  -8 Days =       14 JUN 2017       316   THU     |       279
   22JUN17  -9 Days =       13 JUN 2017       303   WED     |       329
   22JUN17 -10 Days =       12 JUN 2017       287   TUE     |       452
   22JUN17 -11 Days =       11 JUN 2017       263   MON     |       514
   22JUN17 -12 Days =       10 JUN 2017       236   SUN     |       418
   22JUN17 -13 Days =       09 JUN 2017       216   SAT     |       348
______________________________________________________________________________
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)
22 JUN 2017      4       -175        1772       6139
21 JUN 2017      4         -7        2432       6625
20 JUN 2017      3        -48        3034       8323
19 JUN 2017      2       -149        1931       8276
18 JUN 2017      5       -113        2449       6873
17 JUN 2017      2       -127        4080      12069
16 JUN 2017      2       -123        3306      11925
15 JUN 2017      1       -116        3289       8565
14 JUN 2017      1       -227        3305       7436
13 JUN 2017      2       -360        3252       7477
12 JUN 2017      1       -212        4109       7738
11 JUN 2017      2        -65        5952      12738
10 JUN 2017      3       -109        5143      10261
09 JUN 2017      1       -122        8876      12269
 
             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)
22 JUN 2017   -342          0         0           0       -835
21 JUN 2017   -515          0         0           0       -857
20 JUN 2017   -770          0         0           0      -1015
19 JUN 2017   -776          0         0           0       -742
18 JUN 2017   -825          0         0           0       -783
17 JUN 2017   -890          0         0           0       -808
16 JUN 2017   -820          0         0           0       -809
15 JUN 2017   -803          0         0           0       -729
14 JUN 2017   -983          0         0           0       -577
13 JUN 2017  -1141          4         0           0       -697
12 JUN 2017  -1183       -178         0        -246       -902
11 JUN 2017  -1283        -30       -83        -740      -1292
10 JUN 2017  -1347          0      -327       -1200      -1646
09 JUN 2017  -1238          0        -3       -1969      -2159
 
             S-308    Below S-308    S-80
           Discharge   Discharge   Discharge
           (ALL DAY)   (ALL-DAY)   (ALL-DAY)
   DATE     (AC-FT)     (AC-FT)     (AC-FT)
22 JUN 2017  -1986       -1343        -NR-
21 JUN 2017  -2455       -2041          48
20 JUN 2017  -2857       -3397          37
19 JUN 2017  -2263       -2361          36
18 JUN 2017  -2282       -2424          33
17 JUN 2017  -2025       -2070          53
16 JUN 2017  -1513       -1916          36
15 JUN 2017  -1111        -958          36
14 JUN 2017   -361        -291          28
13 JUN 2017   -810        -868          35
12 JUN 2017   -621        -357          41
11 JUN 2017  -1696       -1683          30
10 JUN 2017  -2828       -2118          43
09 JUN 2017  -7600       -4146          42
 
***  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 23JUN2017 @ 23:15  ** Preliminary Data - Subject to Revision **