oke
               U. S. Army Corps of Engineers, Jacksonville District
                       Lake Okeechobee and Vicinity Report
                   ** Preliminary Data - Subject to Revision **
 
Data Ending 2400 hours   25 SEP 2018
_____________________________________________________________________________
 
Okeechobee Lake Regulation      Elevation   Last Year  2YRS Ago
                                (ft-NGVD)   (ft-NGVD)  (ft-NGVD)
  *Okeechobee Lake Elevation       14.66       16.21    15.66 (Official Elv)
  Bottom of High Lake Mngmt= 16.66  Top of Water Short Mngmt= 12.90
  Currently in Operational Management Band
 
  Simulated Average LORS2008 [1965-2000]    13.67
  Difference from Average LORS2008          0.99
 
  25SEP (1965-2007) Period of Record Average    14.75
  Difference from POR Average                  -0.09
 
  Today Lake Okeechobee elevation is determined from the 4 Int & 4 Edge stations
 
  ++Navigation Depth (Based on 2007 Channel Condition Survey) Route 1 ÷  8.60'
  ++Navigation Depth (Based on 2008 Channel Condition Survey) Route 2 ÷  6.80'
  Bridge Clearance = 49.03'
______________________________________________________________________________
 
4 Interior and 4 Edge Okeechobee Lake Average (Avg-Daily values):
 
  L001   L005   L006   LZ40   S4     S352   S308   S133
  14.62  14.76  14.69  14.63  14.72  14.77   14.56 14.56
 
 
 *Combination Okeechobee  Avg-Daily Lake Average =  14.66
                                                   (*See Note)
______________________________________________________________________________
 
Okeechobee Inflows (cfs):
  S65E              0      S65EX1         2230      Fisheating Cr   328
  S154              0      S191              0      S135 Pumps        0
  S84               0      S133 Pumps        0      S2 Pumps          0
  S84X             29      S127 Pumps        0      S3 Pumps          0
  S71             211      S129 Pumps        0      S4 Pumps          0
  S72               0      S131 Pumps        0      C5                0
Total Inflows:   2797
 
Okeechobee Outflows (cfs):
  S135 Culverts     0      S354            619      S77            2206
  S127 Culverts     0      S351             17      S308           1520
  S129 Culverts     0      S352            475
  S131 Culverts     0      L8 Canal Pt      -0
Total Outflows:   4837
 
****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            0.21      S308           0.07
  Average Pan Evap x 0.75 Pan Coefficient =  0.10" =  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  -6353 cfs or -12600 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:  13.46     14.60       0      0    0    0    0    0  (cfs)
  S193:       ______
  S191:        18.92     14.56       0    0.0  0.0  0.0
  S135 Pumps:  13.47     14.53       0      0    0    0    0       (cfs)
  S135 Culverts:                     0    0.0  0.0
 
North West Shore
  S65E:        21.08     14.72       0    0.0  0.0  0.0  0.0  0.0  0.0
  S65EX1:      21.08     14.72    2230
  S127 Pumps:  13.27     14.63       0      0    0    0    0    0  (cfs)
  S127 Culvert:                      0    0.0
 
  S129 Pumps:  12.79     14.72       0      0    0    0            (cfs)
  S129 Culvert:                      0    0.0
 
  S131 Pumps:  12.84     14.77       0      0    0                 (cfs)
  S131 Culvert:                      0
 
  Fisheating Creek
    nr Palmdale          32.05     328
    nr Lakeport         ______
  C5:         ______     -NR-        0     -NR- -NR- -NR-
 
South Shore
  S4 Pumps:    11.28     14.63       0      0    0    0            (cfs)
  S169:        14.71     11.28       0    0.0  0.0  0.0
  S310:        14.57                13
  S3 Pumps:    10.32     14.65       0      0    0    0            (cfs)
  S354:        14.65     10.32     619    1.0  1.1
  S2 Pumps:    10.18     14.64       0      0    0    0    0       (cfs)
  S351:        14.64     10.18      17    0.0  0.2  0.0
  S352:        14.73     10.28     475    0.2  0.4
  C10A:         -NR-     13.04            8.0   8.0   8.0   0.0   0.0
  L8 Canal PT            12.88      -0
 
  _________________________________________________________________________
                   S351 and S352 Temporary Pumps/S354 Spillway
 
  S351:        10.18     14.64      17  -NR--NR--NR--NR--NR--NR-
  S352:        10.28     14.73     475  -NR--NR--NR--NR-
  S354:        10.32     14.65     619  -NR--NR--NR--NR-
  _________________________________________________________________________
 
Caloosahatchee River (S77, S78, S79)
  S47B:        11.89     12.07            0.0  0.0
  S47D:        11.20     11.19     -16    6.5
  S77:
    Spillway and Sector Preferred Flow:
               14.71     11.12    2202  3.0  3.0  3.0  0.0
    Flow Due to Lockages+:           4
 
  S78:
    Spillway and Sector Flow:
               10.98      2.98    1603    0.0  2.5  2.5  0.0
    Flow Due to Lockages+:          10
 
  S79:
    Spillway and Sector Flow:
                3.06      1.15    2924    1.0  1.0  2.0  2.0  2.0  2.0  1.0  1.0
    Flow Due to Lockages+:           3
    Percent of flow from S77        75%
    Chloride            (ppm)     52
 
 
St. Lucie Canal (S308, S80)
  S308:
    Spillway and Sector Preferred Flow:
               14.60     14.47    1520  5.5  5.5  5.5  5.0
    Flow Due to Lockages+:           0
 
  S153:        18.68     14.22      39    0.2  0.0
  S80:
    Spillway and Sector Flow:
               13.47      1.95    1761    0.0  2.5  0.0  0.0  1.2  0.0  3.0
    Flow Due to Lockages+:          20
    Percent of flow from S308       86%
 
  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:                        15.69       15.69       15.76      104       4
  S78:                         3.11        3.34        3.40      108       3
  S79:                        -7.25       -7.25       -5.90      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:                        3.17        4.04        4.19       77       1
  S80:                         0.00        0.00        0.00       90       1
        Okeechobee Average     9.43        1.52        1.53
        (Sites S78, S79 and S80 not included)
  -----------------------------------------------------------------
  Oke Nexrad Basin Avg         -NR-        0.19        0.74
  -----------------------------------------------------------------
 
 
______________________________________________________________________________
Okeechobee Lake Elevations  25 SEP 2018           14.66 Difference from 25SEP18
   25SEP18  -1 Day  =       24 SEP 2018           14.69             0.03
   25SEP18  -2 Days =       23 SEP 2018           14.69             0.03
   25SEP18  -3 Days =       22 SEP 2018           14.69             0.03
   25SEP18  -4 Days =       21 SEP 2018           14.70             0.04
   25SEP18  -5 Days =       20 SEP 2018           14.73             0.07
   25SEP18  -6 Days =       19 SEP 2018           14.75             0.09
   25SEP18  -7 Days =       18 SEP 2018           14.77             0.11
   25SEP18 -30 Days =       26 AUG 2018           14.53            -0.13
   25SEP18  -1 Year =       25 SEP 2017           16.21             1.55
   25SEP18  -2 Year =       25 SEP 2016           15.66             1.00
______________________________________________________________________________
Long Term Mean 30day Avearge ET for Lake Alfred (Inches) =  3.99
______________________________________________________________________________
                         Lake Okeechobee Net Inflow (LONIN)
                   Average Flow over the previous 14 days  |  Avg-Daily Flow
   25SEP18    Today =       25 SEP 2018      2165  WED     |     -1519
   25SEP18  -1 Day  =       24 SEP 2018      2473  TUE     |      3595
   25SEP18  -2 Days =       23 SEP 2018      2498  MON     |      2943
   25SEP18  -3 Days =       22 SEP 2018      2715  SUN     |      1695
   25SEP18  -4 Days =       21 SEP 2018      3116  SAT     |     -1813
   25SEP18  -5 Days =       20 SEP 2018      3695  FRI     |       763
   25SEP18  -6 Days =       19 SEP 2018      3821  THU     |     -1102
   25SEP18  -7 Days =       18 SEP 2018      4344  WED     |        17
   25SEP18  -8 Days =       17 SEP 2018      5202  TUE     |     -2547
   25SEP18  -9 Days =       16 SEP 2018      6247  MON     |       340
   25SEP18 -10 Days =       15 SEP 2018      6466  SUN     |       434
   25SEP18 -11 Days =       14 SEP 2018      6583  SAT     |     21178
   25SEP18 -12 Days =       13 SEP 2018      5146  FRI     |      3161
   25SEP18 -13 Days =       12 SEP 2018      5319  THU     |      3161
______________________________________________________________________________
______________________________________________________________________________
                                 S65E
                       Average Flow over previous 14 days  |  Avg-Daily Flow
   25SEP18     Today=       25 SEP 2018         0  WED     |         0
   25SEP18  -1 Day  =       24 SEP 2018         0  TUE     |         0
   25SEP18  -2 Days =       23 SEP 2018         0  MON     |         0
   25SEP18  -3 Days =       22 SEP 2018         0  SUN     |         0
   25SEP18  -4 Days =       21 SEP 2018         0  SAT     |         0
   25SEP18  -5 Days =       20 SEP 2018         0  FRI     |         0
   25SEP18  -6 Days =       19 SEP 2018         0  THU     |         0
   25SEP18  -7 Days =       18 SEP 2018         0  WED     |         0
   25SEP18  -8 Days =       17 SEP 2018         0  TUE     |         0
   25SEP18  -9 Days =       16 SEP 2018         0  MON     |         0
   25SEP18 -10 Days =       15 SEP 2018         0  SUN     |         0
   25SEP18 -11 Days =       14 SEP 2018         0  SAT     |         0
   25SEP18 -12 Days =       13 SEP 2018         0  FRI     |         0
   25SEP18 -13 Days =       12 SEP 2018         0  THU     |         0
______________________________________________________________________________
______________________________________________________________________________
                                 S65EX1
                       Average Flow over previous 14 days  |  Avg-Daily Flow
   25SEP18     Today=       25 SEP 2018      2582   WED     |      2230
   25SEP18  -1 Day  =       24 SEP 2018      2720   TUE     |      2283
   25SEP18  -2 Days =       23 SEP 2018      2881   MON     |      2407
   25SEP18  -3 Days =       22 SEP 2018      3045   SUN     |      2547
   25SEP18  -4 Days =       21 SEP 2018      3198   SAT     |      2249
   25SEP18  -5 Days =       20 SEP 2018      3364   FRI     |      2082
   25SEP18  -6 Days =       19 SEP 2018      3541   THU     |      2188
   25SEP18  -7 Days =       18 SEP 2018      3701   WED     |      2376
   25SEP18  -8 Days =       17 SEP 2018      3851   TUE     |      2220
   25SEP18  -9 Days =       16 SEP 2018      3966   MON     |      2547
   25SEP18 -10 Days =       15 SEP 2018      4024   SUN     |      2718
   25SEP18 -11 Days =       14 SEP 2018      4039   SAT     |      3122
   25SEP18 -12 Days =       13 SEP 2018      4040   FRI     |      3265
   25SEP18 -13 Days =       12 SEP 2018      3998   THU     |      3918
______________________________________________________________________________
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)
25 SEP 2018   4376       3775        3203       5802
24 SEP 2018   3863       3363        3203       5903
23 SEP 2018   4003       3627        3231       6809
22 SEP 2018   4335       3676        3210       7124
21 SEP 2018   4438       3838        3143       6913
20 SEP 2018   3478       3190        2674       5036
19 SEP 2018    431        675        1483       5334
18 SEP 2018    340        549        1509       5892
17 SEP 2018   1177       1112        1494       6039
16 SEP 2018    707       1088        1711       5613
15 SEP 2018    406       1185        1853       6891
14 SEP 2018   1810       1923        1467       6768
13 SEP 2018   1988       2016        2052       -NR-
12 SEP 2018    922       1337        2063       5481
 
             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)
25 SEP 2018     25         34       819        1001         -1
24 SEP 2018     13          0       258        1257          6
23 SEP 2018     53          0       103        1390         -5
22 SEP 2018     13        357       311        1578          1
21 SEP 2018      6        247       137        1491          5
20 SEP 2018     14       1283         0        1188          7
19 SEP 2018    -77        812         0        1087         -1
18 SEP 2018   -262        487         0         559        -14
17 SEP 2018   -375        381       200         224         12
16 SEP 2018   -350          0         0           0         12
15 SEP 2018   -309          0         0           0         -4
14 SEP 2018   -251          0         0         228        -11
13 SEP 2018    -59          0         0         839         -7
12 SEP 2018    -45        556         0        1005         11
 
             S-308    Below S-308    S-80
           Discharge   Discharge   Discharge
           (ALL DAY)   (ALL-DAY)   (ALL-DAY)
   DATE     (AC-FT)     (AC-FT)     (AC-FT)
25 SEP 2018   2980        3140        3539
24 SEP 2018   1434        1299        1770
23 SEP 2018      1        -117         253
22 SEP 2018    573         593         762
21 SEP 2018   2352        2256        2609
20 SEP 2018   3684        3931        3572
19 SEP 2018   3715        4455        4034
18 SEP 2018   2783        2566        3541
17 SEP 2018   1289        -NR-        1789
16 SEP 2018      1           7         242
15 SEP 2018    412         252         968
14 SEP 2018   2107        2005        2578
13 SEP 2018   3278        3402        3469
12 SEP 2018   3646        3913        3851
 
***  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 26SEP2018 @ 10:39  ** Preliminary Data - Subject to Revision **