oke
               U. S. Army Corps of Engineers, Jacksonville District
                       Lake Okeechobee and Vicinity Report
                   ** Preliminary Data - Subject to Revision **
 
Data Ending 2400 hours   19 MAY 2019
_____________________________________________________________________________
 
Okeechobee Lake Regulation      Elevation   Last Year  2YRS Ago
                                (ft-NGVD)   (ft-NGVD)  (ft-NGVD)
  *Okeechobee Lake Elevation       11.22       13.41     -NR- (Official Elv)
  Bottom of High Lake Mngmt= 16.27  Top of Water Short Mngmt= 10.67
  Currently in Operational Management Band
 
  Simulated Average LORS2008 [1965-2000]    12.04
  Difference from Average LORS2008         -0.82
 
  19MAY (1965-2007) Period of Record Average    13.24
  Difference from POR Average                  -2.02
 
  Today Lake Okeechobee elevation is determined from the 4 Int & 4 Edge stations
 
  ++Navigation Depth (Based on 2007 Channel Condition Survey) Route 1 ÷  5.16'
  ++Navigation Depth (Based on 2008 Channel Condition Survey) Route 2 ÷  3.36'
  Bridge Clearance =  -NR-'
______________________________________________________________________________
 
4 Interior and 4 Edge Okeechobee Lake Average (Avg-Daily values):
 
  L001   L005   L006   LZ40   S4     S352   S308   S133
  11.16  11.36  11.26  11.20  11.31   -NR-   11.11 11.14
 
 
 *Combination Okeechobee  Avg-Daily Lake Average =  11.22
                                                   (*See Note)
______________________________________________________________________________
 
Okeechobee Inflows (cfs):
  S65E            448      S65EX1          287      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                0
Total Inflows:    737
 
Okeechobee Outflows (cfs):
  S135 Culverts     0      S354              0      S77             358
  S127 Culverts     0      S351              0      S308           -NR-
  S129 Culverts     0      S352              0
  S131 Culverts     0      L8 Canal Pt      -1
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            0.25      S308           0.27
  Average Pan Evap x 0.75 Pan Coefficient =  0.19" =  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  -1815 cfs or  -3600 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:  12.78     11.19       0      0    0    0    0    0  (cfs)
  S193:       ______
  S191:        18.01     11.19       0    0.0  0.0  0.0
  S135 Pumps:  13.10     11.15       0      0    0    0    0       (cfs)
  S135 Culverts:                     0    0.0  0.0
 
North West Shore
  S65E:        21.00     11.19     448    0.0  0.3  0.4  0.4  0.0  0.0
  S65EX1:      21.00     11.19     287
  S127 Pumps:  12.55     11.26       0      0    0    0    0    0  (cfs)
  S127 Culvert:                      0    0.0
 
  S129 Pumps:  12.15     11.09       0      0    0    0            (cfs)
  S129 Culvert:                      0    0.0
 
  S131 Pumps:  12.10     11.62       0      0    0                 (cfs)
  S131 Culvert:                      0
 
  Fisheating Creek
    nr Palmdale          28.02       1
    nr Lakeport         ______
  C5:         ______     -NR-        0     -NR- -NR- -NR-
 
South Shore
  S4 Pumps:    11.20     11.12       0      0    0    0            (cfs)
  S169:        11.17     11.15      80    4.9  4.9  4.9
  S310:        11.14                24
  S3 Pumps:     9.22     11.12       0      0    0    0            (cfs)
  S354:        11.12      9.22       0    0.0  0.0
  S2 Pumps:     9.05      -NR-       0      0    0    0    0       (cfs)
  S351:         -NR-      9.05       0    0.0  0.0  0.0
  S352:       ______      9.15       0    0.0  0.0
  C10A:         -NR-     11.43            8.0   8.0   8.0   0.0   0.0
  L8 Canal PT            11.13      -1
 
  _________________________________________________________________________
                   S351 and S352 Temporary Pumps/S354 Spillway
 
  S351:         9.05      -NR-       0  -NR--NR--NR--NR--NR--NR-
  S352:         9.15    ______       0  -NR--NR--NR--NR-
  S354:         9.22     11.12       0  -NR--NR--NR--NR-
  _________________________________________________________________________
 
Caloosahatchee River (S77, S78, S79)
  S47B:        11.30     10.66            0.0  0.0
  S47D:        10.69     10.69       5    5.7
  S77:
    Spillway and Sector Preferred Flow:
               11.18     10.59     357  0.0  4.5  0.0  0.0
    Flow Due to Lockages+:           1
 
  S78:
    Spillway and Sector Flow:
               10.51      3.14     854    0.0  0.0  2.5  0.0
    Flow Due to Lockages+:          17
 
  S79:
    Spillway and Sector Flow:
                3.31      0.94     968    0.0  1.0  1.0  1.5  1.0  0.0  0.0  0.0
    Flow Due to Lockages+:          13
    Percent of flow from S77        37%
    Chloride            (ppm)     57
 
 
St. Lucie Canal (S308, S80)
  S308:
    Spillway and Sector Preferred Flow:
               11.08      -NR-       0  0.0  0.0  0.0  0.0
    Flow Due to Lockages+:        -NR-
 
  S153:        18.87     13.64       0    0.0  0.0
  S80:
    Spillway and Sector Flow:
               13.85      1.53       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.
++ 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:                         5.24        5.24        5.46      165       3
  S78:                         3.24        3.24        3.40      120       3
  S79:                         4.09        4.09        4.11      192       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:                        4.20        4.20        4.29       89       4
  S80:                         7.35        7.35        7.86      128       0
        Okeechobee Average     4.72        0.73        0.75
        (Sites S78, S79 and S80 not included)
  -----------------------------------------------------------------
  Oke Nexrad Basin Avg         -NR-        0.00        0.00
  -----------------------------------------------------------------
 
 
______________________________________________________________________________
Okeechobee Lake Elevations  19 MAY 2019           11.22 Difference from 19MAY19
   19MAY19  -1 Day  =       18 MAY 2019           11.23             0.01
   19MAY19  -2 Days =       17 MAY 2019           11.25             0.03
   19MAY19  -3 Days =       16 MAY 2019           11.28             0.06
   19MAY19  -4 Days =       15 MAY 2019           11.28             0.06
   19MAY19  -5 Days =       14 MAY 2019           11.29             0.07
   19MAY19  -6 Days =       13 MAY 2019           11.29             0.07
   19MAY19  -7 Days =       12 MAY 2019           11.30             0.08
   19MAY19 -30 Days =       19 APR 2019           11.54             0.32
   19MAY19  -1 Year =       19 MAY 2018           13.41             2.19
   19MAY19  -2 Year =       19 MAY 2017            -NR-             -NR-
______________________________________________________________________________
Long Term Mean 30day Avearge ET for Lake Alfred (Inches) =  4.99
______________________________________________________________________________
                         Lake Okeechobee Net Inflow (LONIN)
                   Average Flow over the previous 14 days  |  Avg-Daily Flow
   19MAY19    Today =       19 MAY 2019       252  MON     |     -1458
   19MAY19  -1 Day  =       18 MAY 2019       910  SUN     |     -3204
   19MAY19  -2 Days =       17 MAY 2019      1064  SAT     |     -5445
   19MAY19  -3 Days =       16 MAY 2019      1642  FRI     |         0
   19MAY19  -4 Days =       15 MAY 2019      1712  THU     |     -1815
   19MAY19  -5 Days =       14 MAY 2019      1599  WED     |         0
   19MAY19  -6 Days =       13 MAY 2019      1581  TUE     |     -1815
   19MAY19  -7 Days =       12 MAY 2019      1491  MON     |      1999
   19MAY19  -8 Days =       11 MAY 2019      1194  SUN     |      1815
   19MAY19  -9 Days =       10 MAY 2019       802  SAT     |      5445
   19MAY19 -10 Days =       09 MAY 2019       212  FRI     |         0
   19MAY19 -11 Days =       08 MAY 2019        48  THU     |      1959
   19MAY19 -12 Days =       07 MAY 2019      -341  WED     |      1991
   19MAY19 -13 Days =       06 MAY 2019      -636  TUE     |      4055
______________________________________________________________________________
______________________________________________________________________________
                                 S65E
                       Average Flow over previous 14 days  |  Avg-Daily Flow
   19MAY19     Today=       19 MAY 2019       464  MON     |       527
   19MAY19  -1 Day  =       18 MAY 2019       426  SUN     |       560
   19MAY19  -2 Days =       17 MAY 2019       386  SAT     |       643
   19MAY19  -3 Days =       16 MAY 2019       340  FRI     |       662
   19MAY19  -4 Days =       15 MAY 2019       293  THU     |       561
   19MAY19  -5 Days =       14 MAY 2019       253  WED     |       552
   19MAY19  -6 Days =       13 MAY 2019       213  TUE     |       499
   19MAY19  -7 Days =       12 MAY 2019       178  MON     |       511
   19MAY19  -8 Days =       11 MAY 2019       141  SUN     |       471
   19MAY19  -9 Days =       10 MAY 2019       107  SAT     |       412
   19MAY19 -10 Days =       09 MAY 2019        78  FRI     |       376
   19MAY19 -11 Days =       08 MAY 2019        51  THU     |       552
   19MAY19 -12 Days =       07 MAY 2019        12  WED     |       163
   19MAY19 -13 Days =       06 MAY 2019         0  TUE     |         0
______________________________________________________________________________
______________________________________________________________________________
                                 S65EX1
                       Average Flow over previous 14 days  |  Avg-Daily Flow
   19MAY19     Today=       19 MAY 2019       362   MON     |       287
   19MAY19  -1 Day  =       18 MAY 2019       370   SUN     |       286
   19MAY19  -2 Days =       17 MAY 2019       376   SAT     |       286
   19MAY19  -3 Days =       16 MAY 2019       378   FRI     |       288
   19MAY19  -4 Days =       15 MAY 2019       381   THU     |       315
   19MAY19  -5 Days =       14 MAY 2019       384   WED     |       404
   19MAY19  -6 Days =       13 MAY 2019       376   TUE     |       402
   19MAY19  -7 Days =       12 MAY 2019       376   MON     |       398
   19MAY19  -8 Days =       11 MAY 2019       377   SUN     |       400
   19MAY19  -9 Days =       10 MAY 2019       375   SAT     |       398
   19MAY19 -10 Days =       09 MAY 2019       379   FRI     |       398
   19MAY19 -11 Days =       08 MAY 2019       388   THU     |       400
   19MAY19 -12 Days =       07 MAY 2019       387   WED     |       405
   19MAY19 -13 Days =       06 MAY 2019       391   TUE     |       403
______________________________________________________________________________
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)
19 MAY 2019    696       1076        1728       1953
18 MAY 2019    876       1056        1633       2285
17 MAY 2019      1         11        1741       4101
16 MAY 2019     -1        209        1802       3566
15 MAY 2019     -2         -8         337       2262
14 MAY 2019     -1        139         519       1251
13 MAY 2019      0        209         629       1796
12 MAY 2019    405        645         893       3070
11 MAY 2019      0        272        1590       3056
10 MAY 2019      0       -267        1441       4196
09 MAY 2019   -948       -993         331        662
08 MAY 2019    402        652         589       1207
07 MAY 2019    300        692        1201       1276
06 MAY 2019     84        889        1184       1836
 
             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)
19 MAY 2019     48          0         0           0         -2
18 MAY 2019     47          0         0           0        -25
17 MAY 2019    -85          0         0           0        -39
16 MAY 2019   -249          0         0           0        -72
15 MAY 2019   -209          0         0           0       -186
14 MAY 2019   -354          0         0           0       -212
13 MAY 2019   -338          0         0           0       -226
12 MAY 2019   -299          0         0           0       -280
11 MAY 2019   -182          0         0           0       -227
10 MAY 2019   -166          0         0           0        -50
09 MAY 2019   -128          0         0           0        -13
08 MAY 2019   -155          0         0           0         -1
07 MAY 2019   -236          0         0           0         -6
06 MAY 2019   -249         93       528           0        -14
 
             S-308    Below S-308    S-80
           Discharge   Discharge   Discharge
           (ALL DAY)   (ALL-DAY)   (ALL-DAY)
   DATE     (AC-FT)     (AC-FT)     (AC-FT)
19 MAY 2019   -NR-        -105          53
18 MAY 2019   -NR-         183          56
17 MAY 2019   -NR-         203          29
16 MAY 2019   -NR-         166          57
15 MAY 2019   -NR-          74          56
14 MAY 2019   -NR-        -222         760
13 MAY 2019   -NR-        -287         712
12 MAY 2019   -NR-        -189          52
11 MAY 2019     -8         -79          47
10 MAY 2019     -7         -56         649
09 MAY 2019    -13         -28          44
08 MAY 2019    -11          99          49
07 MAY 2019     -5         -68          45
06 MAY 2019     -2          32          37
 
***  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 20MAY2019 @ 10:39  ** Preliminary Data - Subject to Revision **