U. S. Army Corps of Engineers, Jacksonville District
                       Lake Okeechobee and Vicinity Report
                   ** Preliminary Data - Subject to Revision **
 
Data Ending 2400 hours   24 FEB 2017
_____________________________________________________________________________
 
Okeechobee Lake Regulation      Elevation   Last Year  2YRS Ago
                                (ft-NGVD)   (ft-NGVD)  (ft-NGVD)
  *Okeechobee Lake Elevation       13.50       16.06    14.68 (Official Elv)
  Bottom of High Lake Mngmt= 17.25  Top of Water Short Mngmt= 11.88
  Currently in Operational Management Band
 
  Simulated Average LORS2008 [1965-2000]    13.35
  Difference from Average LORS2008          0.15
 
  24FEB (1965-2007) Period of Record Average    14.54
  Difference from POR Average                  -1.04
 
  Today Lake Okeechobee elevation is determined from the 4 Int & 4 Edge stations
 
  ++Navigation Depth (Based on 2007 Channel Condition Survey) Route 1 ÷  7.44'
  ++Navigation Depth (Based on 2008 Channel Condition Survey) Route 2 ÷  5.64'
  Bridge Clearance = 50.00'
______________________________________________________________________________
 
4 Interior and 4 Edge Okeechobee Lake Average (Avg-Daily values):
 
  L001   L005   L006   LZ40   S4     S352   S308   S133
  13.31  13.56  13.49  13.48  13.58  13.69   13.48 13.36
 
 
 *Combination Okeechobee  Avg-Daily Lake Average =  13.50
                                                   (*See Note)
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Okeechobee Inflows (cfs):
  S65E              0      S65EX1          753      Fisheating Cr     1
  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               0      S131 Pumps        0      C5              -79
Total Inflows:    676
 
Okeechobee Outflows (cfs):
  S135 Culverts     0      S354            446      S77              89
  S127 Culverts    -5      S351              1      S77Below          0
  S129 Culverts     0      S352            366      S308             -0
  S131 Culverts     0      L8 Canal Pt     116      S308Below      -116
Total Outflows:   1013
 
****S77 Structure outflow is being used to compute Total Outflow.
****S308 Structure outflow is being used to compute Total Outflow.
 
Okeechobee Pan Evaporation (inches):
  S77            0.18      S308           0.25
  Average Pan Evap x 0.75 Pan Coefficient =  0.16" =  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:  13.30     13.34       0      0    0    0    0    0  (cfs)
  S193:       ______
  S191:        18.22     13.32       0    0.0  0.0  0.0
  S135 Pumps:  13.27     13.31       0      0    0    0    0       (cfs)
  S135 Culverts:                     0    0.0  0.0
 
North West Shore
  S65E:        20.96     13.25       0    0.0  0.0  0.0  0.0  0.0  0.0
  S65EX1:      20.96     13.25     753
  S127 Pumps:  13.28     13.43       0      0    0    0    0    0  (cfs)
  S127 Culvert:                     -5    1.0
 
  S129 Pumps: ______      -NR-       0      0    0    0            (cfs)
  S129 Culvert:                      0   -NR-
 
  S131 Pumps:  12.60     13.51       0      0    0                 (cfs)
  S131 Culvert:                      0
 
  Fisheating Creek
    nr Palmdale          28.07       1
    nr Lakeport         ______
  C5:          13.52    13.56      -79      5.4  5.6  5.4
 
South Shore
  S4 Pumps:    11.10     13.65       0      0    0    0            (cfs)
  S169:        13.62     11.09       0    0.0  0.0  0.0
  S310:        13.61                 5
  S3 Pumps:    10.45     13.63       0      0    0    0            (cfs)
  S354:        13.63     10.45     446    0.4  0.4
  S2 Pumps:     9.78     13.59       0      0    0    0    0       (cfs)
  S351:        13.59      9.78       1    0.2  0.0  0.0
  S352:        13.60     10.80     366    1.0  1.0
  C10A:         -NR-     13.61            0.0   8.0   8.0   8.0   8.0
  L8 Canal PT            13.41     116
 
  _________________________________________________________________________
                   S351 and S352 Temporary Pumps/S354 Spillway
 
  S351:         9.78     13.59       1  -NR--NR--NR--NR--NR--NR-
  S352:        10.80     13.60     366  -NR--NR--NR--NR-
  S354:        10.45     13.63     446  -NR--NR--NR--NR-
  _________________________________________________________________________
 
Caloosahatchee River (S77, S78, S79)
  S47B:        13.12     11.05            0.0  0.0
  S47D:        11.04     11.04      45    6.1
  S77:
    Spillway and Sector Flow:
               13.53     11.16      86  0.0  0.0  0.5  0.0
    Flow Due to Lockages+:           3
 
  S77 Below USGS Flow Gage           0
 
  S78:
    Spillway and Sector Flow:
               10.92      2.78     344    0.0  0.0  0.0  1.0
    Flow Due to Lockages+:          23
 
  S79:
    Spillway and Sector Flow:
                2.99      1.83    1077    0.0  0.0  1.0  1.0  1.0  0.0  0.0  0.0
    Flow Due to Lockages+:          10
    Percent of flow from S77         8%
    Chloride            (ppm)     66
 
 
St. Lucie Canal (S308, S80)
  S308:
    Spillway and Sector Flow:
               13.41     13.50       0  0.0  0.0  0.0  0.0
    Flow Due to Lockages+:          -0
 
  S308 Below USGS Flow Gage       -116
  S153:        18.77     13.29       0    0.0  0.0
  S80:
    Spillway and Sector Flow:
               13.50      1.10       0    0.0  0.0  0.0  0.0  0.0  0.0  0.0
    Flow Due to Lockages+:          27
    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:                         0.00        0.65        0.65      270       0
  S78:                         0.00        1.23        1.23      312       1
  S79:                         0.00        0.54        0.55      302       1
  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        0.61        0.61      134       0
  S80:                         0.00        0.22        0.22       80       0
        Okeechobee Average     0.00        0.10        0.10
        (Sites S78, S79 and S80 not included)
  -----------------------------------------------------------------
  Oke Nexrad Basin Avg         -NR-        0.00        0.00
  -----------------------------------------------------------------
 
 
______________________________________________________________________________
Okeechobee Lake Elevations  24 FEB 2017           13.50 Difference from 24FEB17
   24FEB17  -1 Day  =       23 FEB 2017           13.51             0.01
   24FEB17  -2 Days =       22 FEB 2017           13.49            -0.01
   24FEB17  -3 Days =       21 FEB 2017           13.48            -0.02
   24FEB17  -4 Days =       20 FEB 2017           13.49            -0.01
   24FEB17  -5 Days =       19 FEB 2017           13.51             0.01
   24FEB17  -6 Days =       18 FEB 2017           13.53             0.03
   24FEB17  -7 Days =       17 FEB 2017           13.55             0.05
   24FEB17 -30 Days =       25 JAN 2017           13.93             0.43
   24FEB17  -1 Year =       24 FEB 2016           16.06             2.56
   24FEB17  -2 Year =       24 FEB 2015           14.68             1.18
______________________________________________________________________________
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
   24FEB17    Today =       24 FEB 2017     -1488  SAT     |     -1215
   24FEB17  -1 Day  =       23 FEB 2017     -1985  FRI     |      4433
   24FEB17  -2 Days =       22 FEB 2017     -1985  THU     |      2411
   24FEB17  -3 Days =       21 FEB 2017     -1862  WED     |      -654
   24FEB17  -4 Days =       20 FEB 2017     -1853  TUE     |     -1725
   24FEB17  -5 Days =       19 FEB 2017     -1894  MON     |     -1796
   24FEB17  -6 Days =       18 FEB 2017     -1772  SUN     |     -2144
   24FEB17  -7 Days =       17 FEB 2017     -1607  SAT     |     -3514
   24FEB17  -8 Days =       16 FEB 2017     -1514  FRI     |     -3631
   24FEB17  -9 Days =       15 FEB 2017     -1304  THU     |     -1362
   24FEB17 -10 Days =       14 FEB 2017     -1147  WED     |     -3432
   24FEB17 -11 Days =       13 FEB 2017     -1144  TUE     |     -7760
   24FEB17 -12 Days =       12 FEB 2017      -427  MON     |     -1236
   24FEB17 -13 Days =       11 FEB 2017      -101  SUN     |       787
______________________________________________________________________________
______________________________________________________________________________
                                 S65E
                       Average Flow over previous 14 days  |  Avg-Daily Flow
   24FEB17     Today=       24 FEB 2017        93  SAT     |         0
   24FEB17  -1 Day  =       23 FEB 2017       134  FRI     |         0
   24FEB17  -2 Days =       22 FEB 2017       175  THU     |         0
   24FEB17  -3 Days =       21 FEB 2017       219  WED     |         4
   24FEB17  -4 Days =       20 FEB 2017       269  TUE     |         0
   24FEB17  -5 Days =       19 FEB 2017       324  MON     |         0
   24FEB17  -6 Days =       18 FEB 2017       382  SUN     |         0
   24FEB17  -7 Days =       17 FEB 2017       436  SAT     |         0
   24FEB17  -8 Days =       16 FEB 2017       475  FRI     |         0
   24FEB17  -9 Days =       15 FEB 2017       513  THU     |         0
   24FEB17 -10 Days =       14 FEB 2017       547  WED     |         0
   24FEB17 -11 Days =       13 FEB 2017       583  TUE     |       280
   24FEB17 -12 Days =       12 FEB 2017       598  MON     |       511
   24FEB17 -13 Days =       11 FEB 2017       595  SUN     |       513
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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)
24 FEB 2017    177          0         727       2156
23 FEB 2017    177        218         710        903
22 FEB 2017    655        527         718        510
21 FEB 2017   1181        933         716        923
20 FEB 2017   1760       1354        1017       1575
19 FEB 2017   2816       2292        1696       2074
18 FEB 2017   2571       2472        -NR-       2149
17 FEB 2017   2079       2067        -NR-       1659
16 FEB 2017   1521       1347         686        586
15 FEB 2017   1374       1324         690        500
14 FEB 2017   1228        977         694        946
13 FEB 2017   1620       1431        1012       1647
12 FEB 2017   2877       2749        1757       2017
11 FEB 2017   2553       2700        1432       1896
 
             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)
24 FEB 2017     10          2       726         833        229
23 FEB 2017     -2          0         0         212         62
22 FEB 2017      5          0         0           0        125
21 FEB 2017     15        502       377         349        401
20 FEB 2017     72       1194       882         880        396
19 FEB 2017     65        924       579         581        427
18 FEB 2017    107        583       369         190        383
17 FEB 2017    136       1799       914         466        277
16 FEB 2017    116       2005       948         843        255
15 FEB 2017    119       1549       968        1497        359
14 FEB 2017     48       1896      1019        1442        397
13 FEB 2017     36       1682       884        1124        383
12 FEB 2017    123       1642       506         662        388
11 FEB 2017     63       1535       151         696        361
 
             S-308    Below S-308    S-80
           Discharge   Discharge   Discharge
           (ALL DAY)   (ALL-DAY)   (ALL-DAY)
   DATE     (AC-FT)     (AC-FT)     (AC-FT)
24 FEB 2017     -0        -231          54
23 FEB 2017     -0        -542          45
22 FEB 2017      0          31          48
21 FEB 2017      0         240          48
20 FEB 2017     -0         172          41
19 FEB 2017     -0          33          57
18 FEB 2017      0         149          26
17 FEB 2017     -0         107          49
16 FEB 2017      0         -46          50
15 FEB 2017      0        -140          23
14 FEB 2017      0          61          30
13 FEB 2017      0         102          31
12 FEB 2017      0         -45          74
11 FEB 2017      1         317          64
 
***  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 25FEB2017 @ 21:38  ** Preliminary Data - Subject to Revision **