oke
               U. S. Army Corps of Engineers, Jacksonville District
                       Lake Okeechobee and Vicinity Report
                   ** Preliminary Data - Subject to Revision **
 
Data Ending 2400 hours   17 MAR 2019
_____________________________________________________________________________
 
Okeechobee Lake Regulation      Elevation   Last Year  2YRS Ago
                                (ft-NGVD)   (ft-NGVD)  (ft-NGVD)
  *Okeechobee Lake Elevation       12.18       14.31     -NR- (Official Elv)
  Bottom of High Lake Mngmt= 17.25  Top of Water Short Mngmt= 11.77
  Currently in Operational Management Band
 
  Simulated Average LORS2008 [1965-2000]    13.19
  Difference from Average LORS2008         -1.01
 
  17MAR (1965-2007) Period of Record Average    14.42
  Difference from POR Average                  -2.24
 
  Today Lake Okeechobee elevation is determined from the 4 Int & 4 Edge stations
 
  ++Navigation Depth (Based on 2007 Channel Condition Survey) Route 1 ÷  6.12'
  ++Navigation Depth (Based on 2008 Channel Condition Survey) Route 2 ÷  4.32'
  Bridge Clearance = 51.46'
______________________________________________________________________________
 
4 Interior and 4 Edge Okeechobee Lake Average (Avg-Daily values):
 
  L001   L005   L006   LZ40   S4     S352   S308   S133
  12.07  12.25  12.29  12.21  12.32   -NR-   12.15 11.99
 
 
 *Combination Okeechobee  Avg-Daily Lake Average =  12.18
                                                   (*See Note)
______________________________________________________________________________
 
Okeechobee Inflows (cfs):
  S65E              0      S65EX1          567      Fisheating Cr     9
  S154              0      S191              0      S135 Pumps        0
  S84               0      S133 Pumps        0      S2 Pumps          0
  S84X              0      S127 Pumps        0      S3 Pumps          0
  S71              49      S129 Pumps        0      S4 Pumps          0
  S72               0      S131 Pumps        0      C5                0
Total Inflows:    625
 
Okeechobee Outflows (cfs):
  S135 Culverts     0      S354            948      S77            1562
  S127 Culverts     0      S351            496      S308            -17
  S129 Culverts     0      S352            533
  S131 Culverts     0      L8 Canal Pt      36
Total Outflows:   3558
 
****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            0.18      S308           0.22
  Average Pan Evap x 0.75 Pan Coefficient =  0.15" =  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  -7764 cfs or -15400 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:  12.97     12.06       0      0    0    0    0    0  (cfs)
  S193:       ______
  S191:        16.70     12.05       0    0.0  0.0  0.0
  S135 Pumps:  12.43     11.99       0      0    0    0    0       (cfs)
  S135 Culverts:                     0    0.0  0.0
 
North West Shore
  S65E:        21.14     11.99       0    0.0  0.0  0.0  0.0  0.0  0.0
  S65EX1:      21.14     11.99     567
  S127 Pumps:  12.93     12.04       0      0    0    0    0    0  (cfs)
  S127 Culvert:                      0    0.0
 
  S129 Pumps:  12.83     12.34       0      0    0    0            (cfs)
  S129 Culvert:                      0    0.0
 
  S131 Pumps:  12.86     12.12       0      0    0                 (cfs)
  S131 Culvert:                      0
 
  Fisheating Creek
    nr Palmdale          28.47       9
    nr Lakeport         ______
  C5:         ______     -NR-        0     -NR- -NR- -NR-
 
South Shore
  S4 Pumps:    12.48     12.41       0      0    0    0            (cfs)
  S169:        12.46     12.44      68    4.9  4.9  4.9
  S310:        12.49               111
  S3 Pumps:    10.38     12.52       0      0    0    0            (cfs)
  S354:        12.52     10.38     948    2.5  2.5
  S2 Pumps:    10.45      -NR-       0      0    0    0    0       (cfs)
  S351:         -NR-     10.45     496    1.6  1.6  1.4
  S352:       ______     10.28     533    1.4  1.4
  C10A:         -NR-     12.33            8.0   8.0   8.0   0.0   0.0
  L8 Canal PT            12.15      36
 
  _________________________________________________________________________
                   S351 and S352 Temporary Pumps/S354 Spillway
 
  S351:        10.45      -NR-     496  -NR--NR--NR--NR--NR--NR-
  S352:        10.28    ______     533  -NR--NR--NR--NR-
  S354:        10.38     12.52     948  -NR--NR--NR--NR-
  _________________________________________________________________________
 
Caloosahatchee River (S77, S78, S79)
  S47B:        12.21     10.81            0.0  0.0
  S47D:        10.88     10.89     -24    6.5
  S77:
    Spillway and Sector Preferred Flow:
               12.26     10.79    1559  0.0  4.7  4.7  2.5
    Flow Due to Lockages+:           3
 
  S78:
    Spillway and Sector Flow:
               10.68      2.65    1697    1.0  2.5  2.5  0.0
    Flow Due to Lockages+:          17
 
  S79:
    Spillway and Sector Flow:
                2.76      1.76    2764    1.0  1.0  2.0  2.0  2.0  2.0  1.0  1.0
    Flow Due to Lockages+:           8
    Percent of flow from S77        56%
    Chloride            (ppm)     61
 
 
St. Lucie Canal (S308, S80)
  S308:
    Spillway and Sector Preferred Flow:
               12.03     12.04     -17  3.5  3.5  3.5  3.5
    Flow Due to Lockages+:           0
 
  S153:        18.65     11.83      61    0.0  0.0
  S80:
    Spillway and Sector Flow:
               11.90      1.20     206    0.0  0.0  0.0  0.0  0.5  0.0  0.0
    Flow Due to Lockages+:          22
    Percent of flow from S308       -8%
 
  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:                         0.00        0.00        0.00      350       6
  S78:                         0.00        0.04        0.04       66       5
  S79:                         0.00        0.03        0.03      270       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:                        0.00        0.05        0.05      350       5
  S80:                         0.00        0.16        0.16       14       9
        Okeechobee Average     0.00        0.00        0.00
        (Sites S78, S79 and S80 not included)
  -----------------------------------------------------------------
  Oke Nexrad Basin Avg         -NR-        0.00        0.00
  -----------------------------------------------------------------
 
 
______________________________________________________________________________
Okeechobee Lake Elevations  17 MAR 2019           12.18 Difference from 17MAR19
   17MAR19  -1 Day  =       16 MAR 2019           12.22             0.04
   17MAR19  -2 Days =       15 MAR 2019           12.24             0.06
   17MAR19  -3 Days =       14 MAR 2019           12.28             0.10
   17MAR19  -4 Days =       13 MAR 2019           12.33             0.15
   17MAR19  -5 Days =       12 MAR 2019           12.36             0.18
   17MAR19  -6 Days =       11 MAR 2019           12.42             0.24
   17MAR19  -7 Days =       10 MAR 2019           12.47             0.29
   17MAR19 -30 Days =       15 FEB 2019           12.80             0.62
   17MAR19  -1 Year =       17 MAR 2018           14.31             2.13
   17MAR19  -2 Year =       17 MAR 2017            -NR-             -NR-
______________________________________________________________________________
Long Term Mean 30day Avearge ET for Lake Alfred (Inches) =  3.25
______________________________________________________________________________
                         Lake Okeechobee Net Inflow (LONIN)
                   Average Flow over the previous 14 days  |  Avg-Daily Flow
   17MAR19    Today =       17 MAR 2019     -2696  MON     |     -4192
   17MAR19  -1 Day  =       16 MAR 2019     -2398  SUN     |     -1678
   17MAR19  -2 Days =       15 MAR 2019     -2051  SAT     |     -3287
   17MAR19  -3 Days =       14 MAR 2019     -1801  FRI     |     -3896
   17MAR19  -4 Days =       13 MAR 2019     -1262  THU     |       566
   17MAR19  -5 Days =       12 MAR 2019      -997  WED     |     -4306
   17MAR19  -6 Days =       11 MAR 2019      -474  TUE     |     -2549
   17MAR19  -7 Days =       10 MAR 2019      -753  MON     |       439
   17MAR19  -8 Days =       09 MAR 2019      -980  SUN     |     -1153
   17MAR19  -9 Days =       08 MAR 2019      -601  SAT     |      2671
   17MAR19 -10 Days =       07 MAR 2019      -712  FRI     |      -899
   17MAR19 -11 Days =       06 MAR 2019      -495  THU     |    -10518
   17MAR19 -12 Days =       05 MAR 2019       543  WED     |     -7346
   17MAR19 -13 Days =       04 MAR 2019      1288  TUE     |     -1593
______________________________________________________________________________
______________________________________________________________________________
                                 S65E
                       Average Flow over previous 14 days  |  Avg-Daily Flow
   17MAR19     Today=       17 MAR 2019       476  MON     |         0
   17MAR19  -1 Day  =       16 MAR 2019       567  SUN     |         0
   17MAR19  -2 Days =       15 MAR 2019       658  SAT     |        84
   17MAR19  -3 Days =       14 MAR 2019       743  FRI     |       130
   17MAR19  -4 Days =       13 MAR 2019       826  THU     |       343
   17MAR19  -5 Days =       12 MAR 2019       892  WED     |       425
   17MAR19  -6 Days =       11 MAR 2019       954  TUE     |       413
   17MAR19  -7 Days =       10 MAR 2019      1025  MON     |       411
   17MAR19  -8 Days =       09 MAR 2019      1095  SUN     |       414
   17MAR19  -9 Days =       08 MAR 2019      1164  SAT     |       416
   17MAR19 -10 Days =       07 MAR 2019      1233  FRI     |       369
   17MAR19 -11 Days =       06 MAR 2019      1338  THU     |      1090
   17MAR19 -12 Days =       05 MAR 2019      1423  WED     |      1295
   17MAR19 -13 Days =       04 MAR 2019      1491  TUE     |      1275
______________________________________________________________________________
______________________________________________________________________________
                                 S65EX1
                       Average Flow over previous 14 days  |  Avg-Daily Flow
   17MAR19     Today=       17 MAR 2019       354   MON     |       567
   17MAR19  -1 Day  =       16 MAR 2019       360   SUN     |       595
   17MAR19  -2 Days =       15 MAR 2019       377   SAT     |       451
   17MAR19  -3 Days =       14 MAR 2019       414   FRI     |       440
   17MAR19  -4 Days =       13 MAR 2019       462   THU     |       134
   17MAR19  -5 Days =       12 MAR 2019       542   WED     |         9
   17MAR19  -6 Days =       11 MAR 2019       630   TUE     |       137
   17MAR19  -7 Days =       10 MAR 2019       704   MON     |        18
   17MAR19  -8 Days =       09 MAR 2019       806   SUN     |       300
   17MAR19  -9 Days =       08 MAR 2019       894   SAT     |       545
   17MAR19 -10 Days =       07 MAR 2019       974   FRI     |       534
   17MAR19 -11 Days =       06 MAR 2019      1040   THU     |       394
   17MAR19 -12 Days =       05 MAR 2019      1085   WED     |       279
   17MAR19 -13 Days =       04 MAR 2019      1150   TUE     |       558
______________________________________________________________________________
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 MAR 2019   3151       3538        3426       5491
16 MAR 2019   1746       1649        2273       3867
15 MAR 2019   1946       1831        1408       1736
14 MAR 2019   2838       2414        2379       2238
13 MAR 2019   3225       3093        2415       3241
12 MAR 2019   4219       4153        2804       4342
11 MAR 2019   4117       4151        4009       4930
10 MAR 2019   3245       3615        3412       4731
09 MAR 2019   1283       1971        2018       3261
08 MAR 2019   1295       1123        1210       1510
07 MAR 2019   2172       1972        1641       2287
06 MAR 2019   2435       2057        2622       2901
05 MAR 2019   1967       1724        2587       4151
04 MAR 2019   2643       2715        2608       4472
 
             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 MAR 2019    220        983      1057        1632         72
16 MAR 2019    147        652       891        1083         36
15 MAR 2019    147       2428      1808        2205         -6
14 MAR 2019    220       2821      1951        2495         24
13 MAR 2019    326       2855      1955        2624        130
12 MAR 2019    368       2781      1916        2794        218
11 MAR 2019    222       2288      1859        2522        208
10 MAR 2019    246       1900      1783        3554        192
09 MAR 2019    288       2031      1838        3379        211
08 MAR 2019    327       2261      1873        2814        237
07 MAR 2019    248       2262      1665        2550        213
06 MAR 2019    243       2183      1555        1400        264
05 MAR 2019    175       2173      1427         904        164
04 MAR 2019    146       1650      1401         912         48
 
             S-308    Below S-308    S-80
           Discharge   Discharge   Discharge
           (ALL DAY)   (ALL-DAY)   (ALL-DAY)
   DATE     (AC-FT)     (AC-FT)     (AC-FT)
17 MAR 2019   -122         221         453
16 MAR 2019    -25         392         458
15 MAR 2019    487         767         512
14 MAR 2019   1206        1303         728
13 MAR 2019   1469        1531         957
12 MAR 2019   2439        2236        1368
11 MAR 2019   3155        2725        1672
10 MAR 2019   2057        1928        1602
09 MAR 2019    702        1167        1039
08 MAR 2019    618        1033         838
07 MAR 2019    717        1241         832
06 MAR 2019   1794        1701        1060
05 MAR 2019   1424        2466        1649
04 MAR 2019   1666        2639        1705
 
***  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 18MAR2019 @ 09:45  ** Preliminary Data - Subject to Revision **