oke
               U. S. Army Corps of Engineers, Jacksonville District
                       Lake Okeechobee and Vicinity Report
                   ** Preliminary Data - Subject to Revision **
 
Data Ending 2400 hours   09 APR 2020
_____________________________________________________________________________
 
Okeechobee Lake Regulation      Elevation   Last Year  2YRS Ago
                                (ft-NGVD)   (ft-NGVD)  (ft-NGVD)
  *Okeechobee Lake Elevation       11.56       11.77    13.57 (Official Elv)
  Bottom of High Lake Mngmt= 17.09  Top of Water Short Mngmt= 11.48
  Currently in Operational Management Band
 
  Simulated Average LORS2008 [1965-2000]    12.85
  Difference from Average LORS2008         -1.29
 
  09APR (1965-2007) Period of Record Average    14.10
  Difference from POR Average                  -2.54
 
  Today Lake Okeechobee elevation is determined from the 4 Int & 4 Edge stations
 
  ++Navigation Depth (Based on 2007 Channel Condition Survey) Route 1 ÷  5.50'
  ++Navigation Depth (Based on 2008 Channel Condition Survey) Route 2 ÷  3.70'
  Bridge Clearance = 51.82'
______________________________________________________________________________
 
4 Interior and 4 Edge Okeechobee Lake Average (Avg-Daily values):
 
  L001   L005   L006   LZ40   S4     S352   S308   S133
  11.56  11.42  11.58  11.57  11.38  11.79   11.66 11.49
 
 
 *Combination Okeechobee  Avg-Daily Lake Average =  11.56
                                                   (*See Note)
______________________________________________________________________________
 
Okeechobee Inflows (cfs):
  S65E            230      S65EX1           74      Fisheating Cr     0
  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:    305
 
Okeechobee Outflows (cfs):
  S135 Culverts     0      S354            561      S77             697
  S127 Culverts     0      S351           1090      S308            177
  S129 Culverts     0      S352            355
  S131 Culverts     0      L8 Canal Pt     117
Total Outflows:   2998
 
****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            0.22      S308           0.31
  Average Pan Evap x 0.75 Pan Coefficient =  0.20" =  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  -7260 cfs or -14400 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:  12.20     11.53       0      0    0    0    0    0  (cfs)
  S193:       ______
  S191:        18.14     11.58       0    0.0  0.0 -NR-
  S135 Pumps:  11.24     11.65       0      0    0    0    0       (cfs)
  S135 Culverts:                     0    0.0  0.0
 
North West Shore
  S65E:        20.86     11.32     230    0.5 -0.0  0.0  0.2  0.0  0.0
  S65EX1:      20.86     11.32      74
  S127 Pumps:  12.21     11.48       0      0    0    0    0    0  (cfs)
  S127 Culvert:                      0    0.0
 
  S129 Pumps:  12.07     10.96       0      0    0    0            (cfs)
  S129 Culvert:                      0    0.0
 
  S131 Pumps:  12.41     11.23       0      0    0                 (cfs)
  S131 Culvert:                      0
 
  Fisheating Creek
    nr Palmdale          27.51       0
    nr Lakeport         ______
  C5:         ______     -NR-        0     -NR- -NR- -NR-
 
South Shore
  S4 Pumps:    11.17     11.37       0      0    0    0            (cfs)
  S169:        11.38     11.32     120    5.0  5.0  5.0
  S310:        11.33               156
  S3 Pumps:    10.94     11.43       0      0    0    0            (cfs)
  S354:        11.43     10.94     561    2.4  2.4
  S2 Pumps:    10.72      -NR-       0      0    0    0    0       (cfs)
  S351:         -NR-     10.72    1090    2.3  2.3  1.9
  S352:        11.74     10.75     355    0.9  0.9
  C10A:         -NR-     11.85            8.0   8.0   8.0   0.0   0.0
  L8 Canal PT            11.71     117
 
  _________________________________________________________________________
                   S351 and S352 Temporary Pumps/S354 Spillway
 
  S351:        10.72      -NR-    1090  -NR--NR--NR--NR--NR--NR-
  S352:        10.75     11.74     355  -NR--NR--NR--NR-
  S354:        10.94     11.43     561  -NR--NR--NR--NR-
  _________________________________________________________________________
 
Caloosahatchee River (S77, S78, S79)
  S47B:        11.03     10.68            0.0  0.0
  S47D:        10.65     10.65     -18    6.4
  S77:
    Spillway and Sector Preferred Flow:
               11.06     10.53     697  3.0  3.5  3.0  0.0
    Flow Due to Lockages+:           0
 
  S78:
    Spillway and Sector Flow:
               10.58      2.93     289    1.0  0.0  0.0  0.0
    Flow Due to Lockages+:           8
 
  S79:
    Spillway and Sector Flow:
                3.05      1.45     307    0.0  0.0  0.5  1.0  0.0  0.0  0.0  0.0
    Flow Due to Lockages+:           3
    Percent of flow from S77       227%
    Chloride            (ppm)      0
 
 
St. Lucie Canal (S308, S80)
  S308:
    Spillway and Sector Preferred Flow:
               11.77     11.68     177  3.0  3.0  3.0  3.0
    Flow Due to Lockages+:           0
 
  S153:        18.98     11.47       0    0.0  0.0
  S80:
    Spillway and Sector Flow:
               11.87      1.65       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.
++ 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:                        15.11       15.11       15.43      219       4
  S78:                         7.30        7.30        7.48      229       4
  S79:                         1.82        1.82        2.44      189       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:                       38.73       38.73       38.76      264      18
  S80:                         1.04        1.04        1.92      310       4
        Okeechobee Average    26.92        4.14        4.17
        (Sites S78, S79 and S80 not included)
  -----------------------------------------------------------------
  Oke Nexrad Basin Avg         -NR-        0.00        0.00
  -----------------------------------------------------------------
 
 
______________________________________________________________________________
Okeechobee Lake Elevations  09 APR 2020           11.56 Difference from 09APR20
   09APR20  -1 Day  =       08 APR 2020           11.60             0.04
   09APR20  -2 Days =       07 APR 2020           11.62             0.06
   09APR20  -3 Days =       06 APR 2020           11.64             0.08
   09APR20  -4 Days =       05 APR 2020           11.67             0.11
   09APR20  -5 Days =       04 APR 2020           11.71             0.15
   09APR20  -6 Days =       03 APR 2020           11.74             0.18
   09APR20  -7 Days =       02 APR 2020           11.78             0.22
   09APR20 -30 Days =       10 MAR 2020           12.42             0.86
   09APR20  -1 Year =       09 APR 2019           11.77             0.21
   09APR20  -2 Year =       09 APR 2018           13.57             2.01
______________________________________________________________________________
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
   09APR20    Today =       09 APR 2020     -3218  FRI     |     -4263
   09APR20  -1 Day  =       08 APR 2020     -3130  THU     |      -830
   09APR20  -2 Days =       07 APR 2020     -3340  WED     |     -1113
   09APR20  -3 Days =       06 APR 2020     -3562  TUE     |     -2436
   09APR20  -4 Days =       05 APR 2020     -3687  MON     |     -3881
   09APR20  -5 Days =       04 APR 2020     -3384  SUN     |     -1896
   09APR20  -6 Days =       03 APR 2020     -3570  SAT     |     -3771
   09APR20  -7 Days =       02 APR 2020     -3424  FRI     |     -5826
   09APR20  -8 Days =       01 APR 2020     -2807  THU     |     -5823
   09APR20  -9 Days =       31 MAR 2020     -2414  WED     |     -2005
   09APR20 -10 Days =       30 MAR 2020     -2269  TUE     |     -3585
   09APR20 -11 Days =       29 MAR 2020     -1871  MON     |     -2262
   09APR20 -12 Days =       28 MAR 2020     -1688  SUN     |     -4138
   09APR20 -13 Days =       27 MAR 2020     -1295  SAT     |      -NR-
______________________________________________________________________________
______________________________________________________________________________
                                 S65E
                       Average Flow over previous 14 days  |  Avg-Daily Flow
   09APR20     Today=       09 APR 2020       327  FRI     |       266
   09APR20  -1 Day  =       08 APR 2020       345  THU     |       342
   09APR20  -2 Days =       07 APR 2020       366  WED     |       270
   09APR20  -3 Days =       06 APR 2020       394  TUE     |       494
   09APR20  -4 Days =       05 APR 2020       395  MON     |       370
   09APR20  -5 Days =       04 APR 2020       416  SUN     |       366
   09APR20  -6 Days =       03 APR 2020       444  SAT     |       173
   09APR20  -7 Days =       02 APR 2020       486  FRI     |       356
   09APR20  -8 Days =       01 APR 2020       502  THU     |       209
   09APR20  -9 Days =       31 MAR 2020       536  WED     |       340
   09APR20 -10 Days =       30 MAR 2020       560  TUE     |       340
   09APR20 -11 Days =       29 MAR 2020       582  MON     |       312
   09APR20 -12 Days =       28 MAR 2020       614  SUN     |       351
   09APR20 -13 Days =       27 MAR 2020       644  SAT     |       394
______________________________________________________________________________
______________________________________________________________________________
                                 S65EX1
                       Average Flow over previous 14 days  |  Avg-Daily Flow
   09APR20     Today=       09 APR 2020        10   FRI     |        74
   09APR20  -1 Day  =       08 APR 2020         4   THU     |         0
   09APR20  -2 Days =       07 APR 2020         4   WED     |         0
   09APR20  -3 Days =       06 APR 2020         4   TUE     |         0
   09APR20  -4 Days =       05 APR 2020         5   MON     |         0
   09APR20  -5 Days =       04 APR 2020        10   SUN     |         0
   09APR20  -6 Days =       03 APR 2020        10   SAT     |         0
   09APR20  -7 Days =       02 APR 2020        10   FRI     |         0
   09APR20  -8 Days =       01 APR 2020        10   THU     |         0
   09APR20  -9 Days =       31 MAR 2020        14   WED     |         0
   09APR20 -10 Days =       30 MAR 2020        26   TUE     |         0
   09APR20 -11 Days =       29 MAR 2020        38   MON     |         0
   09APR20 -12 Days =       28 MAR 2020        53   SUN     |        18
   09APR20 -13 Days =       27 MAR 2020        67   SAT     |        45
______________________________________________________________________________
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)
09 APR 2020   1411       1461         588        614
08 APR 2020   1433       1482         601        684
07 APR 2020   1420       1374         667        877
06 APR 2020   1819       1820        1003       1057
05 APR 2020   1835       1766        1134        860
04 APR 2020   1420       1652         618        770
03 APR 2020   1659       1490         692        744
02 APR 2020   1490       1456         895        771
01 APR 2020   1968       1940         655        693
31 MAR 2020   1845       1907         897        944
30 MAR 2020   2233       2319        1308       1561
29 MAR 2020   2147       2177        1219       1779
28 MAR 2020   2216       2280         993       1286
27 MAR 2020   2355       2423        1013        900
 
             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)
09 APR 2020    309       2162       705         950        232
08 APR 2020    215       1978       673         793        262
07 APR 2020    332       1789       508         680        218
06 APR 2020    195       2179       462         633        202
05 APR 2020    359       2567       735         944        172
04 APR 2020    258       2892       782        1055        188
03 APR 2020    362       2689       758        1206        194
02 APR 2020    254       2326       586        1043        189
01 APR 2020    179       2158       526         876        205
31 MAR 2020      0       2123       902        1253        307
30 MAR 2020    185       2267       821        1295        270
29 MAR 2020    297       2152       605         988        220
28 MAR 2020    262       2412       578        1130        209
27 MAR 2020    337       2615       590        1041       -NR-
 
             S-308    Below S-308    S-80
           Discharge   Discharge   Discharge
           (ALL DAY)   (ALL-DAY)   (ALL-DAY)
   DATE     (AC-FT)     (AC-FT)     (AC-FT)
09 APR 2020   -436         207          19
08 APR 2020   -163         189          21
07 APR 2020   -320         102          26
06 APR 2020    135         146           6
05 APR 2020     -7         -47          21
04 APR 2020    310         127          46
03 APR 2020   -978         248          45
02 APR 2020   -866         264          39
01 APR 2020  -1765        -173          36
31 MAR 2020    142         466          37
30 MAR 2020   -616         196          37
29 MAR 2020   -927         -62          36
28 MAR 2020  -1400          -7          42
27 MAR 2020   -701         134          38
 
***  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 10APR2020 @ 15:07  ** Preliminary Data - Subject to Revision **