U. S. Army Corps of Engineers, Jacksonville District
                       Lake Okeechobee and Vicinity Report
                   ** Preliminary Data - Subject to Revision **
 
Data Ending 2400 hours   25 MAY 2017
_____________________________________________________________________________
 
Okeechobee Lake Regulation      Elevation   Last Year  2YRS Ago
                                (ft-NGVD)   (ft-NGVD)  (ft-NGVD)
  *Okeechobee Lake Elevation       11.09       14.38    12.99 (Official Elv)
  Bottom of High Lake Mngmt= 16.14  Top of Water Short Mngmt= 10.59
  Currently in Operational Management Band
 
  Simulated Average LORS2008 [1965-2000]    11.97
  Difference from Average LORS2008         -0.88
 
  25MAY (1965-2007) Period of Record Average    13.15
  Difference from POR Average                  -2.06
 
  Today Lake Okeechobee elevation is determined from the 4 Int & 4 Edge stations
 
  ++Navigation Depth (Based on 2007 Channel Condition Survey) Route 1 ÷  5.03'
  ++Navigation Depth (Based on 2008 Channel Condition Survey) Route 2 ÷  3.23'
  Bridge Clearance =  -NR-'
______________________________________________________________________________
 
4 Interior and 4 Edge Okeechobee Lake Average (Avg-Daily values):
 
  L001   L005   L006   LZ40   S4     S352   S308   S133
  11.07  10.99  11.10  11.06  10.87  11.27   11.17 11.19
 
 
 *Combination Okeechobee  Avg-Daily Lake Average =  11.09
                                                   (*See Note)
______________________________________________________________________________
 
Okeechobee Inflows (cfs):
  S65E              0      S65EX1          189      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         57
  S71               0      S129 Pumps        0      S4 Pumps         36
  S72              84      S131 Pumps        0      C5                0
Total Inflows:    366
 
Okeechobee Outflows (cfs):
  S135 Culverts     0      S354            364      S77            -NR-
  S127 Culverts     0      S351              9      S308           -NR-
  S129 Culverts     0      S352             63
  S131 Culverts     0      L8 Canal Pt    -116
Total Outflows:  No Report Due To Missing S77 or S308 Discharge Data
 
****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            -NR-      S308           -NR-
  Average Pan Evap x 0.75 Pan Coefficient =  -NR-" =  -NR-'
 
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
______________________________________________________________________________
______________________________________________________________________________
 
 
 
Note: Headwater, tailwater, and stage values below are instantaneous values
      unless otherwise specified.
 
             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:  11.66     11.14       0      0    0    0    0    0  (cfs)
  S193:       ______
  S191:        17.32     11.15       0    0.0  0.0  0.0
  S135 Pumps:  10.70     11.11       0      0    0    0    0       (cfs)
  S135 Culverts:                     0    0.0  0.0
 
North West Shore
  S65E:        20.95     11.03       0    0.0  0.0  0.0  0.0  0.0  0.0
  S65EX1:      20.95     11.03     189
  S127 Pumps:  11.77     11.09       0      0    0    0    0    0  (cfs)
  S127 Culvert:                      0    0.0
 
  S129 Pumps: ______      -NR-       0      0    0    0            (cfs)
  S129 Culvert:                      0   -NR-
 
  S131 Pumps:  12.24     11.38       0      0    0                 (cfs)
  S131 Culvert:                      0
 
  Fisheating Creek
    nr Palmdale          27.13       0
    nr Lakeport         ______
  C5:         ______     -NR-        0     -NR- -NR- -NR-
 
South Shore
  S4 Pumps:    11.09     11.08      36      0    0    0            (cfs)
  S169:        11.08     11.07      56    5.0  5.0  5.0
  S310:        11.00                43
  S3 Pumps:    10.61     11.07      57      0    0    0            (cfs)
  S354:        11.07     10.61     364    0.0  0.0
  S2 Pumps:    10.24     11.08       0      0    0    0    0       (cfs)
  S351:        11.08     10.24       9    0.0  0.1  0.0
  S352:        11.22     10.52      63    0.0  0.0
  C10A:         -NR-     11.33            8.0   8.0   8.0   0.0   0.0
  L8 Canal PT            11.18    -116
 
  _________________________________________________________________________
                   S351 and S352 Temporary Pumps/S354 Spillway
 
  S351:        10.24     11.08       9  -NR--NR--NR--NR--NR--NR-
  S352:        10.52     11.22      63  -NR--NR--NR--NR-
  S354:        10.61     11.07     364  -NR--NR--NR--NR-
  _________________________________________________________________________
 
Caloosahatchee River (S77, S78, S79)
  S47B:        13.42     10.90            0.0  0.0
  S47D:        10.94     10.93      50    6.2
  S77:
    Spillway and Sector Flow:
                -NR-      -NR-    -NR-  3.5  3.5  3.5  3.5
    Flow Due to Lockages+:        -NR-
 
  S77 Below USGS Flow Gage         351
 
  S78:
    Spillway and Sector Flow:
                -NR-      -NR-    -NR-    0.0  0.0  0.0  0.0
    Flow Due to Lockages+:        -NR-
 
  S79:
    Spillway and Sector Flow:
                -NR-      -NR-    -NR-    0.0  0.0  0.0  0.0  0.0  0.0  0.0  0.0
    Flow Due to Lockages+:        -NR-
    Percent of flow from S77      -NR-%
    Chloride            (ppm)     -N
 
 
St. Lucie Canal (S308, S80)
  S308:
    Spillway and Sector Flow:
                -NR-      -NR-    -NR- -NR- -NR- -NR- -NR-
    Flow Due to Lockages+:        -NR-
 
  S308 Below USGS Flow Gage       -152
  S153:        18.46     11.11       0    0.0  0.0
  S80:
    Spillway and Sector Flow:
                -NR-      -NR-    -NR-   -NR- -NR- -NR- -NR- -NR- -NR- -NR-
    Flow Due to Lockages+:        -NR-
    Percent of flow from S308     -NR-%
 
  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.
______________________________________________________________________________
                                                               ----- 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:                         -NR-        0.62        0.91     -NR-    -NR-
  S78:                         -NR-        0.29        0.41     -NR-    -NR-
  S79:                         -NR-        0.33        0.85     -NR-    -NR-
  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:                        -NR-        0.04        0.56     -NR-    -NR-
  S80:                         -NR-        0.01        0.01     -NR-    -NR-
        Okeechobee Average     -NR-        0.05        0.11
        (Sites S78, S79 and S80 not included)
  -----------------------------------------------------------------
  Oke Nexrad Basin Avg         -NR-        0.45        0.63
  -----------------------------------------------------------------
 
 
______________________________________________________________________________
Okeechobee Lake Elevations  25 MAY 2017           11.09 Difference from 25MAY17
   25MAY17  -1 Day  =       24 MAY 2017           11.10             0.01
   25MAY17  -2 Days =       23 MAY 2017           11.10             0.01
   25MAY17  -3 Days =       22 MAY 2017           11.12             0.03
   25MAY17  -4 Days =       21 MAY 2017           11.16             0.07
   25MAY17  -5 Days =       20 MAY 2017           11.20             0.11
   25MAY17  -6 Days =       19 MAY 2017           11.24             0.15
   25MAY17  -7 Days =       18 MAY 2017           11.27             0.18
   25MAY17 -30 Days =       25 APR 2017           11.77             0.68
   25MAY17  -1 Year =       25 MAY 2016           14.38             3.29
   25MAY17  -2 Year =       25 MAY 2015           12.99             1.90
______________________________________________________________________________
Long Term Mean 30day Avearge ET for Lake Alfred (Inches) =  5.03
______________________________________________________________________________
                         Lake Okeechobee Net Inflow (LONIN)
                   Average Flow over the previous 14 days  |  Avg-Daily Flow
   25MAY17    Today =       25 MAY 2017     -3617  FRI     |      -NR-
   25MAY17  -1 Day  =       24 MAY 2017     -3556  THU     |      -NR-
   25MAY17  -2 Days =       23 MAY 2017     -3470  WED     |      -527
   25MAY17  -3 Days =       22 MAY 2017     -3602  TUE     |     -3989
   25MAY17  -4 Days =       21 MAY 2017     -3543  MON     |     -4420
   25MAY17  -5 Days =       20 MAY 2017     -3690  SUN     |     -4187
   25MAY17  -6 Days =       19 MAY 2017     -3624  SAT     |     -2155
   25MAY17  -7 Days =       18 MAY 2017     -2699  FRI     |     -3687
   25MAY17  -8 Days =       17 MAY 2017     -2412  THU     |     -1822
   25MAY17  -9 Days =       16 MAY 2017     -1894  WED     |     -3374
   25MAY17 -10 Days =       15 MAY 2017     -1424  TUE     |     -5877
   25MAY17 -11 Days =       14 MAY 2017      -942  MON     |     -4640
   25MAY17 -12 Days =       13 MAY 2017     -1025  SUN     |     -4566
   25MAY17 -13 Days =       12 MAY 2017      -972  SAT     |     -4155
______________________________________________________________________________
______________________________________________________________________________
                                 S65E
                       Average Flow over previous 14 days  |  Avg-Daily Flow
   25MAY17     Today=       25 MAY 2017         0  FRI     |         0
   25MAY17  -1 Day  =       24 MAY 2017         0  THU     |         0
   25MAY17  -2 Days =       23 MAY 2017         0  WED     |         0
   25MAY17  -3 Days =       22 MAY 2017         0  TUE     |         0
   25MAY17  -4 Days =       21 MAY 2017         0  MON     |         0
   25MAY17  -5 Days =       20 MAY 2017         0  SUN     |         0
   25MAY17  -6 Days =       19 MAY 2017         0  SAT     |         0
   25MAY17  -7 Days =       18 MAY 2017         0  FRI     |         0
   25MAY17  -8 Days =       17 MAY 2017         0  THU     |         0
   25MAY17  -9 Days =       16 MAY 2017         0  WED     |         0
   25MAY17 -10 Days =       15 MAY 2017         0  TUE     |         0
   25MAY17 -11 Days =       14 MAY 2017         0  MON     |         0
   25MAY17 -12 Days =       13 MAY 2017         0  SUN     |         0
   25MAY17 -13 Days =       12 MAY 2017         0  SAT     |         0
______________________________________________________________________________
______________________________________________________________________________
                                 S65EX1
                       Average Flow over previous 14 days  |  Avg-Daily Flow
   25MAY17     Today=       25 MAY 2017       178   FRI     |       189
   25MAY17  -1 Day  =       24 MAY 2017       177   THU     |       156
   25MAY17  -2 Days =       23 MAY 2017       179   WED     |       177
   25MAY17  -3 Days =       22 MAY 2017       178   TUE     |       170
   25MAY17  -4 Days =       21 MAY 2017       178   MON     |       194
   25MAY17  -5 Days =       20 MAY 2017       178   SUN     |       193
   25MAY17  -6 Days =       19 MAY 2017       180   SAT     |       193
   25MAY17  -7 Days =       18 MAY 2017       186   FRI     |       193
   25MAY17  -8 Days =       17 MAY 2017       191   THU     |       157
   25MAY17  -9 Days =       16 MAY 2017       202   WED     |       169
   25MAY17 -10 Days =       15 MAY 2017       213   TUE     |       171
   25MAY17 -11 Days =       14 MAY 2017       217   MON     |       149
   25MAY17 -12 Days =       13 MAY 2017       222   SUN     |       189
   25MAY17 -13 Days =       12 MAY 2017       223   SAT     |       200
______________________________________________________________________________
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 MAY 2017   -NR-        696        -NR-       -NR-
24 MAY 2017     -1        293         209        727
23 MAY 2017    950       1204         691        492
22 MAY 2017   1543       1710         910        779
21 MAY 2017   1399       2285        1071       1200
20 MAY 2017   1947       1828        1189       1199
19 MAY 2017   1186       1075         525        590
18 MAY 2017   1372       1147         266         12
17 MAY 2017   1335       1017          34        140
16 MAY 2017   1792       1871         316        463
15 MAY 2017   2233       2565        1064        689
14 MAY 2017   2011       2321        1054       1382
13 MAY 2017   1545       1998        1055       1175
12 MAY 2017   1948       2271        1070        237
 
             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 MAY 2017     86         17       109         672       -230
24 MAY 2017     47        855       500         884       -175
23 MAY 2017    375       2156      1067        1650       -174
22 MAY 2017    453       1894      1011        1602       -235
21 MAY 2017    479       1791       821        1146       -431
20 MAY 2017    354       1999       797        1295       -258
19 MAY 2017    338       2376      1001        1759       -295
18 MAY 2017    570       2538       922        1924       -282
17 MAY 2017    473       2469      1126        1900       -199
16 MAY 2017    263       2439      1178        2029       -124
15 MAY 2017    324       1412       876        1483       -245
14 MAY 2017    305       1051       775        1140       -365
13 MAY 2017    279       1364       992        1237       -276
12 MAY 2017    251       1711       950        1384          3
 
             S-308    Below S-308    S-80
           Discharge   Discharge   Discharge
           (ALL DAY)   (ALL-DAY)   (ALL-DAY)
   DATE     (AC-FT)     (AC-FT)     (AC-FT)
25 MAY 2017   -NR-        -302        -NR-
24 MAY 2017   -NR-        -NR-        -NR-
23 MAY 2017    320        -NR-          30
22 MAY 2017      1        -NR-          42
21 MAY 2017      0        -NR-          46
20 MAY 2017    -83        -NR-          43
19 MAY 2017    187         401          30
18 MAY 2017     83         476          24
17 MAY 2017    186         430          41
16 MAY 2017   -237         183          27
15 MAY 2017     -1         -66          25
14 MAY 2017     -1          -1          30
13 MAY 2017     -3        -241          34
12 MAY 2017     -6        -187          42
 
***  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 26MAY2017 @ 05:06  ** Preliminary Data - Subject to Revision **