oke
               U. S. Army Corps of Engineers, Jacksonville District
                       Lake Okeechobee and Vicinity Report
                   ** Preliminary Data - Subject to Revision **
 
Data Ending 2400 hours   18 OCT 2017
_____________________________________________________________________________
 
Okeechobee Lake Regulation      Elevation   Last Year  2YRS Ago
                                (ft-NGVD)   (ft-NGVD)  (ft-NGVD)
  *Okeechobee Lake Elevation       17.10       15.87    14.74 (Official Elv)
  Bottom of High Lake Mngmt= 17.03  Top of Water Short Mngmt= 12.89
  Currently in High Lake Management Band
 
  Simulated Average LORS2008 [1965-2000]    13.99
  Difference from Average LORS2008          3.11
 
  18OCT (1965-2007) Period of Record Average    15.05
  Difference from POR Average                   2.05
 
  Today Lake Okeechobee elevation is determined from the 4 Int & 4 Edge stations
 
  ++Navigation Depth (Based on 2007 Channel Condition Survey) Route 1 ÷ 11.04'
  ++Navigation Depth (Based on 2008 Channel Condition Survey) Route 2 ÷  9.24'
  Bridge Clearance = 46.77'
______________________________________________________________________________
 
4 Interior and 4 Edge Okeechobee Lake Average (Avg-Daily values):
 
  L001   L005   L006   LZ40   S4     S352   S308   S133
  16.97  17.15  17.22  17.10  17.28  17.25   16.95 16.87
 
 
 *Combination Okeechobee  Avg-Daily Lake Average =  17.10
                                                   (*See Note)
______________________________________________________________________________
 
Okeechobee Inflows (cfs):
  S65E           1708      S65EX1         3083      Fisheating Cr  -NR-
  S154            158      S191            409      S135 Pumps       66
  S84            1355      S133 Pumps       87      S2 Pumps          0
  S84X              0      S127 Pumps       75      S3 Pumps          0
  S71             228      S129 Pumps       22      S4 Pumps          0
  S72             125      S131 Pumps        0      C5                0
Total Inflows:   7315
 
Okeechobee Outflows (cfs):
  S135 Culverts     0      S354              0      S77            7059
  S127 Culverts     0      S351              0      S308           2703
  S129 Culverts     0      S352              0
  S131 Culverts     0      L8 Canal Pt      36
Total Outflows:   9798
 
****S77 below flow meter is being used to compute Total Outflow.
****S308 below flow meter is being used to compute Total Outflow.
 
Okeechobee Pan Evaporation (inches):
  S77            0.19      S308           0.27
  Average Pan Evap x 0.75 Pan Coefficient =  0.17" =  0.01'
 
Lake Average Precipitation using NEXRAD: =  0.01" =  0.00'
 
Evaporation - Precipitation:             =  0.16" =  0.01'
Evaporation - Precipitation using Lake Area of 730 square miles
  is equal to   3190 cfs out of the lake.
Lake Okeechobee (Change in Storage) Flow is  -9478 cfs or -18800 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:  13.31     16.83      87     48    0    0    0   42  (cfs)
  S193:       ______
  S191:        18.36     16.85     409    0.2  0.2  1.2
  S135 Pumps:  13.28     16.90      66     30    0    6   30       (cfs)
  S135 Culverts:                     0    0.0  0.0
 
North West Shore
  S65E:        20.87     16.97    1708    1.0  0.9  1.0  1.0  0.8  1.0
  S65EX1:      20.87     16.97    3083
  S127 Pumps:  13.41     16.95      75     35    0    0    0   41  (cfs)
  S127 Culvert:                      0    0.0
 
  S129 Pumps:  12.82     17.03      22      0   24    0            (cfs)
  S129 Culvert:                      0    0.0
 
  S131 Pumps:  12.88     17.03       0      0    0                 (cfs)
  S131 Culvert:                      0
 
  Fisheating Creek
    nr Palmdale          32.53    -NR-
    nr Lakeport         ______
  C5:         ______     -NR-        0     -NR- -NR- -NR-
 
South Shore
  S4 Pumps:    11.44     17.27       0      0    0    0            (cfs)
  S169:        14.90     11.43       0    0.0  0.0  0.0
  S310:        17.22                -4
  S3 Pumps:     9.45     17.33       0      0    0    0            (cfs)
  S354:        17.33      9.45       0    0.0  0.0
  S2 Pumps:     9.27     17.31       0      0    0    0    0       (cfs)
  S351:        17.31      9.27       0    0.0  0.0  0.0
  S352:        17.29      9.44       0    0.0  0.0
  C10A:         -NR-     16.05            8.0   8.0   8.0   0.0   0.0
  L8 Canal PT            15.97      36
 
  _________________________________________________________________________
                   S351 and S352 Temporary Pumps/S354 Spillway
 
  S351:         9.27     17.31       0  -NR--NR--NR--NR--NR--NR-
  S352:         9.44     17.29       0  -NR--NR--NR--NR-
  S354:         9.45     17.33       0  -NR--NR--NR--NR-
  _________________________________________________________________________
 
Caloosahatchee River (S77, S78, S79)
  S47B:        12.82     11.32            0.0  0.0
  S47D:        11.35     11.36     -39    6.5
  S77:
    Spillway and Sector Flow:
               16.85     11.68  ******  5.5  5.5  5.5  5.5
    Flow Due to Lockages+:           7
 
  S77 Below USGS Flow Gage        7052
 
  S78:
    Spillway and Sector Flow:
               10.83      3.29    6891    5.5  5.5  6.0  5.5
    Flow Due to Lockages+:           8
 
  S79:
    Spillway and Sector Flow:
                2.67      1.38    9060    5.0  5.0  5.0  5.0  5.0  5.0  5.0  5.0
    Flow Due to Lockages+:           3
    Percent of flow from S77        78%
    Chloride            (ppm)     44
 
 
St. Lucie Canal (S308, S80)
  S308:
    Spillway and Sector Flow:
               16.99     16.73  ******  8.0  8.0  8.0  8.0
    Flow Due to Lockages+:           0
 
  S308 Below USGS Flow Gage       2703
  S153:        18.41     16.45     264    0.9  0.8
  S80:
    Spillway and Sector Flow:
               13.79      3.27    4110    2.0  2.0  0.0  2.0  2.0  1.0  0.0
    Flow Due to Lockages+:          11
    Percent of flow from S308       66%
 
  Steele Point Top Salinity    (mg/ml) 9026
  Steele Point Bottom Salinity (mg/ml) ****
 
  Speedy Point Top Salinity    (mg/ml)  563
  Speedy Point Bottom Salinity (mg/ml) 1665
 
 + 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        0.00        0.04       63      10
  S78:                         0.00        0.00        0.03      339       2
  S79:                         0.00        0.00        0.53      340       2
  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        0.00        0.00        4       4
  S80:                         0.00        0.00        0.00       51       2
        Okeechobee Average     0.00        0.00        0.00
        (Sites S78, S79 and S80 not included)
  -----------------------------------------------------------------
  Oke Nexrad Basin Avg         0.01        0.09        0.47
  -----------------------------------------------------------------
 
 
______________________________________________________________________________
Okeechobee Lake Elevations  18 OCT 2017           17.10 Difference from 18OCT17
   18OCT17  -1 Day  =       17 OCT 2017           17.14             0.04
   18OCT17  -2 Days =       16 OCT 2017           17.16             0.06
   18OCT17  -3 Days =       15 OCT 2017           17.18             0.08
   18OCT17  -4 Days =       14 OCT 2017           17.18             0.08
   18OCT17  -5 Days =       13 OCT 2017           17.20             0.10
   18OCT17  -6 Days =       12 OCT 2017           17.19             0.09
   18OCT17  -7 Days =       11 OCT 2017           17.20             0.10
   18OCT17 -30 Days =       18 SEP 2017           15.66            -1.44
   18OCT17  -1 Year =       18 OCT 2016           15.87            -1.23
   18OCT17  -2 Year =       18 OCT 2015           14.74            -2.36
______________________________________________________________________________
Long Term Mean 30day Avearge ET for Lake Alfred (Inches) =  3.59
______________________________________________________________________________
                         Lake Okeechobee Net Inflow (LONIN)
                   Average Flow over the previous 14 days  |  Avg-Daily Flow
   18OCT17    Today =       18 OCT 2017     17657  THU     |       313
   18OCT17  -1 Day  =       17 OCT 2017     19103  WED     |      4979
   18OCT17  -2 Days =       16 OCT 2017     20427  TUE     |      -NR-
   18OCT17  -3 Days =       15 OCT 2017     20052  MON     |     10661
   18OCT17  -4 Days =       14 OCT 2017     20242  SUN     |      5881
   18OCT17  -5 Days =       13 OCT 2017     22186  SAT     |     14124
   18OCT17  -6 Days =       12 OCT 2017     22577  FRI     |      9285
   18OCT17  -7 Days =       11 OCT 2017     22918  THU     |     11951
   18OCT17  -8 Days =       10 OCT 2017     23373  WED     |      9893
   18OCT17  -9 Days =       09 OCT 2017     24294  TUE     |     19221
   18OCT17 -10 Days =       08 OCT 2017     24553  MON     |     27933
   18OCT17 -11 Days =       07 OCT 2017     24384  SUN     |     27122
   18OCT17 -12 Days =       06 OCT 2017     23779  SAT     |     45288
   18OCT17 -13 Days =       05 OCT 2017     22094  FRI     |     42893
______________________________________________________________________________
______________________________________________________________________________
                                 S65E
                       Average Flow over previous 14 days  |  Avg-Daily Flow
   18OCT17     Today=       18 OCT 2017      4009  THU     |      1837
   18OCT17  -1 Day  =       17 OCT 2017      4387  WED     |      1830
   18OCT17  -2 Days =       16 OCT 2017      4769  TUE     |      1907
   18OCT17  -3 Days =       15 OCT 2017      5147  MON     |      2317
   18OCT17  -4 Days =       14 OCT 2017      5494  SUN     |      2648
   18OCT17  -5 Days =       13 OCT 2017      5822  SAT     |      3405
   18OCT17  -6 Days =       12 OCT 2017      6102  FRI     |      3992
   18OCT17  -7 Days =       11 OCT 2017      6340  THU     |      3269
   18OCT17  -8 Days =       10 OCT 2017      6633  WED     |      3447
   18OCT17  -9 Days =       09 OCT 2017      6911  TUE     |      4669
   18OCT17 -10 Days =       08 OCT 2017      7101  MON     |      5562
   18OCT17 -11 Days =       07 OCT 2017      7224  SUN     |      6359
   18OCT17 -12 Days =       06 OCT 2017      7271  SAT     |      7483
   18OCT17 -13 Days =       05 OCT 2017      7211  FRI     |      7400
______________________________________________________________________________
______________________________________________________________________________
                                 S65EX1
                       Average Flow over previous 14 days  |  Avg-Daily Flow
   18OCT17     Today=       18 OCT 2017      4485   THU     |      3083
   18OCT17  -1 Day  =       17 OCT 2017      4716   WED     |      3270
   18OCT17  -2 Days =       16 OCT 2017      4908   TUE     |      3457
   18OCT17  -3 Days =       15 OCT 2017      5078   MON     |      3443
   18OCT17  -4 Days =       14 OCT 2017      5235   SUN     |      3468
   18OCT17  -5 Days =       13 OCT 2017      5414   SAT     |      3386
   18OCT17  -6 Days =       12 OCT 2017      5588   FRI     |      3749
   18OCT17  -7 Days =       11 OCT 2017      5753   THU     |      4990
   18OCT17  -8 Days =       10 OCT 2017      5838   WED     |      5679
   18OCT17  -9 Days =       09 OCT 2017      5884   TUE     |      5627
   18OCT17 -10 Days =       08 OCT 2017      5957   MON     |      5567
   18OCT17 -11 Days =       07 OCT 2017      6034   SUN     |      5551
   18OCT17 -12 Days =       06 OCT 2017      6119   SAT     |      5576
   18OCT17 -13 Days =       05 OCT 2017      6199   FRI     |      5946
______________________________________________________________________________
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)
18 OCT 2017  13250      13985       13707      18001
17 OCT 2017  13753      13888       13761      19140
16 OCT 2017  13719      14059       15021      19868
15 OCT 2017  13678      14145       15125      19963
14 OCT 2017  13737      14296        -NR-      20273
13 OCT 2017  13703      14393       15334      20188
12 OCT 2017  13752      14106       15287      20766
11 OCT 2017  13688      14540       15506      21393
10 OCT 2017  13757      14661       15697      21591
09 OCT 2017  13338      14652       16681      24980
08 OCT 2017  12698      13495       16199      28570
07 OCT 2017  11967      12882       16240      28335
06 OCT 2017  11870      12998       16280      29107
05 OCT 2017  11754      13074       16552      27847
 
             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)
18 OCT 2017     -7          0         0           0         71
17 OCT 2017     22          0         0           0         14
16 OCT 2017     27          0         0           0       -NR-
15 OCT 2017     43          0         0           0          2
14 OCT 2017     48          0         0           0         47
13 OCT 2017     30          0         0           0        -47
12 OCT 2017     27          0         0           0         71
11 OCT 2017     31          0         0           0       -123
10 OCT 2017     48          0         0           0       -431
09 OCT 2017     12          0         0           0       -483
08 OCT 2017     18          0         0           0       -762
07 OCT 2017     21          0         0           0      -1098
06 OCT 2017     22          0         0           0      -1334
05 OCT 2017     21          0         0           0       -975
 
             S-308    Below S-308    S-80
           Discharge   Discharge   Discharge
           (ALL DAY)   (ALL-DAY)   (ALL-DAY)
   DATE     (AC-FT)     (AC-FT)     (AC-FT)
18 OCT 2017   8960        5361        7960
17 OCT 2017   9703        5370        -NR-
16 OCT 2017   9328        5087        9308
15 OCT 2017   9307        6995        9567
14 OCT 2017   8991        6716        9477
13 OCT 2017   8900        8142        8912
12 OCT 2017   9261        8254        8084
11 OCT 2017   9018        7286        9278
10 OCT 2017   9509        4956        9600
09 OCT 2017   9837        4669        9703
08 OCT 2017   8739        4504        8678
07 OCT 2017   4268        3547        6857
06 OCT 2017    258        -229        6050
05 OCT 2017   -723        -795        3456
 
***  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 19OCT2017 @ 23:07  ** Preliminary Data - Subject to Revision **