U. S. Army Corps of Engineers, Jacksonville District
                       Lake Okeechobee and Vicinity Report
                   ** Preliminary Data - Subject to Revision **
 
Data Ending 2400 hours   28 MAR 2017
_____________________________________________________________________________
 
Okeechobee Lake Regulation      Elevation   Last Year  2YRS Ago
                                (ft-NGVD)   (ft-NGVD)  (ft-NGVD)
  *Okeechobee Lake Elevation       12.59       15.07    14.13 (Official Elv)
  Bottom of High Lake Mngmt= 17.25  Top of Water Short Mngmt= 11.72
  Currently in Operational Management Band
 
  Simulated Average LORS2008 [1965-2000]    13.07
  Difference from Average LORS2008         -0.48
 
  28MAR (1965-2007) Period of Record Average    14.33
  Difference from POR Average                  -1.74
 
  Today Lake Okeechobee elevation is determined from the 4 Int & 4 Edge stations
 
  ++Navigation Depth (Based on 2007 Channel Condition Survey) Route 1 ÷  6.53'
  ++Navigation Depth (Based on 2008 Channel Condition Survey) Route 2 ÷  4.73'
  Bridge Clearance = 51.03'
______________________________________________________________________________
 
4 Interior and 4 Edge Okeechobee Lake Average (Avg-Daily values):
 
  L001   L005   L006   LZ40   S4     S352   S308   S133
  12.25  12.73  12.59  12.60  12.68  12.71   12.60 12.58
 
 
 *Combination Okeechobee  Avg-Daily Lake Average =  12.59
                                                   (*See Note)
______________________________________________________________________________
 
Okeechobee Inflows (cfs):
  S65E              0      S65EX1          434      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:    434
 
Okeechobee Outflows (cfs):
  S135 Culverts     0      S354            523      S77             545
  S127 Culverts     0      S351           1193      S77Below        622
  S129 Culverts     0      S352            777      S308              0
  S131 Culverts     0      L8 Canal Pt     141      S308Below        84
Total Outflows:   3180
 
****S77 Structure outflow is being used to compute Total Outflow.
****S308 Structure outflow is being used to compute Total Outflow.
 
Okeechobee Pan Evaporation (inches):
  S77            0.22      S308           0.15
  Average Pan Evap x 0.75 Pan Coefficient =  0.14" =  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 -11545 cfs or -22900 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:  12.64     12.69       0      0    0    0    0    0  (cfs)
  S193:       ______
  S191:        17.09     12.67       0    0.0  0.0  0.0
  S135 Pumps:  11.88     12.47       0      0    0    0    0       (cfs)
  S135 Culverts:                     0    0.0  0.0
 
North West Shore
  S65E:        21.07     12.56       0    0.0  0.0  0.0  0.0  0.0  0.0
  S65EX1:      21.07     12.56     434
  S127 Pumps:  12.59     12.69       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:  12.75     12.93       0      0    0                 (cfs)
  S131 Culvert:                      0
 
  Fisheating Creek
    nr Palmdale          27.64       0
    nr Lakeport         ______
  C5:          12.73    12.72        0      0.0  3.2  0.0
 
South Shore
  S4 Pumps:    10.26     12.65       0      0    0    0            (cfs)
  S169:        12.68     10.24       0    0.0  0.0  0.0
  S310:        12.55                52
  S3 Pumps:    11.22     12.57       0      0    0    0            (cfs)
  S354:        12.57     11.22     523    1.5  1.7
  S2 Pumps:    11.04     12.56       0      0    0    0    0       (cfs)
  S351:        12.56     11.04    1193    2.7  2.5  2.7
  S352:        12.58     10.82     777    1.9  1.9
  C10A:         -NR-     12.66            0.0   8.0   8.0   8.0   8.0
  L8 Canal PT            12.50     141
 
  _________________________________________________________________________
                   S351 and S352 Temporary Pumps/S354 Spillway
 
  S351:        11.04     12.56    1193  -NR--NR--NR--NR--NR--NR-
  S352:        10.82     12.58     777  -NR--NR--NR--NR-
  S354:        11.22     12.57     523  -NR--NR--NR--NR-
  _________________________________________________________________________
 
Caloosahatchee River (S77, S78, S79)
  S47B:        12.93     10.53            0.0  0.0
  S47D:        10.47     10.46      14    6.0
  S77:
    Spillway and Sector Flow:
               12.66     10.58     542  2.5  0.0  0.0  2.5
    Flow Due to Lockages+:           3
 
  S77 Below USGS Flow Gage         622
 
  S78:
    Spillway and Sector Flow:
               10.36      2.96     455    0.0  0.0  0.0  2.0
    Flow Due to Lockages+:          19
 
  S79:
    Spillway and Sector Flow:
                2.99      0.73     516    0.0  0.0  0.0  1.0  1.0  1.0  0.0  0.0
    Flow Due to Lockages+:           8
    Percent of flow from S77       105%
    Chloride            (ppm)     57
 
 
St. Lucie Canal (S308, S80)
  S308:
    Spillway and Sector Flow:
               12.52     12.47       0  0.0  0.0  0.0  0.0
    Flow Due to Lockages+:           0
 
  S308 Below USGS Flow Gage         84
  S153:        18.52     12.28       0    0.0  0.0
  S80:
    Spillway and Sector Flow:
               12.50      1.60       0    0.0  0.0  0.0  0.0  0.0  0.0  0.0
    Flow Due to Lockages+:          26
    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.
______________________________________________________________________________
                                                               ----- 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      153       1
  S78:                         0.00        0.00        0.32       11       2
  S79:                         0.00        0.00        0.00      219       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        0.00        0.18      115       4
  S80:                         0.00        0.00        0.19      215       1
        Okeechobee Average     0.00        0.00        0.02
        (Sites S78, S79 and S80 not included)
  -----------------------------------------------------------------
  Oke Nexrad Basin Avg         -NR-        0.00        0.24
  -----------------------------------------------------------------
 
 
______________________________________________________________________________
Okeechobee Lake Elevations  28 MAR 2017           12.59 Difference from 28MAR17
   28MAR17  -1 Day  =       27 MAR 2017           12.65             0.06
   28MAR17  -2 Days =       26 MAR 2017           12.68             0.09
   28MAR17  -3 Days =       25 MAR 2017           12.70             0.11
   28MAR17  -4 Days =       24 MAR 2017           12.73             0.14
   28MAR17  -5 Days =       23 MAR 2017           12.74             0.15
   28MAR17  -6 Days =       22 MAR 2017           12.77             0.18
   28MAR17  -7 Days =       21 MAR 2017           12.80             0.21
   28MAR17 -30 Days =       26 FEB 2017           13.46             0.87
   28MAR17  -1 Year =       28 MAR 2016           15.07             2.48
   28MAR17  -2 Year =       28 MAR 2015           14.13             1.54
______________________________________________________________________________
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
   28MAR17    Today =       28 MAR 2017     -3237  WED     |     -8450
   28MAR17  -1 Day  =       27 MAR 2017     -2482  TUE     |     -2651
   28MAR17  -2 Days =       26 MAR 2017     -2389  MON     |      -233
   28MAR17  -3 Days =       25 MAR 2017     -2580  SUN     |     -1635
   28MAR17  -4 Days =       24 MAR 2017     -2810  SAT     |      2410
   28MAR17  -5 Days =       23 MAR 2017     -3177  FRI     |     -2464
   28MAR17  -6 Days =       22 MAR 2017     -3232  THU     |     -2436
   28MAR17  -7 Days =       21 MAR 2017     -3122  WED     |      -479
   28MAR17  -8 Days =       20 MAR 2017     -3146  TUE     |     -2378
   28MAR17  -9 Days =       19 MAR 2017     -3335  MON     |     -3993
   28MAR17 -10 Days =       18 MAR 2017     -3108  SUN     |      -207
   28MAR17 -11 Days =       17 MAR 2017     -3362  SAT     |     -2557
   28MAR17 -12 Days =       16 MAR 2017     -4301  FRI     |     -7575
   28MAR17 -13 Days =       15 MAR 2017     -3717  THU     |    -12675
______________________________________________________________________________
______________________________________________________________________________
                                 S65E
                       Average Flow over previous 14 days  |  Avg-Daily Flow
   28MAR17     Today=       28 MAR 2017         0  WED     |         0
   28MAR17  -1 Day  =       27 MAR 2017         0  TUE     |         0
   28MAR17  -2 Days =       26 MAR 2017         0  MON     |         0
   28MAR17  -3 Days =       25 MAR 2017         0  SUN     |         0
   28MAR17  -4 Days =       24 MAR 2017         0  SAT     |         0
   28MAR17  -5 Days =       23 MAR 2017         0  FRI     |         0
   28MAR17  -6 Days =       22 MAR 2017         1  THU     |         0
   28MAR17  -7 Days =       21 MAR 2017         1  WED     |         0
   28MAR17  -8 Days =       20 MAR 2017         1  TUE     |         0
   28MAR17  -9 Days =       19 MAR 2017         1  MON     |         0
   28MAR17 -10 Days =       18 MAR 2017         1  SUN     |         0
   28MAR17 -11 Days =       17 MAR 2017         1  SAT     |         0
   28MAR17 -12 Days =       16 MAR 2017         1  FRI     |         0
   28MAR17 -13 Days =       15 MAR 2017         1  THU     |         0
______________________________________________________________________________
______________________________________________________________________________
                                 S65EX1
                       Average Flow over previous 14 days  |  Avg-Daily Flow
   28MAR17     Today=       28 MAR 2017       734   WED     |       434
   28MAR17  -1 Day  =       27 MAR 2017       766   TUE     |       482
   28MAR17  -2 Days =       26 MAR 2017       790   MON     |       612
   28MAR17  -3 Days =       25 MAR 2017       804   SUN     |       653
   28MAR17  -4 Days =       24 MAR 2017       814   SAT     |       701
   28MAR17  -5 Days =       23 MAR 2017       825   FRI     |       724
   28MAR17  -6 Days =       22 MAR 2017       824   THU     |       754
   28MAR17  -7 Days =       21 MAR 2017       816   WED     |       793
   28MAR17  -8 Days =       20 MAR 2017       797   TUE     |       833
   28MAR17  -9 Days =       19 MAR 2017       796   MON     |       878
   28MAR17 -10 Days =       18 MAR 2017       793   SUN     |       871
   28MAR17 -11 Days =       17 MAR 2017       790   SAT     |       844
   28MAR17 -12 Days =       16 MAR 2017       788   FRI     |       846
   28MAR17 -13 Days =       15 MAR 2017       782   THU     |       847
______________________________________________________________________________
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)
28 MAR 2017   1109       1233         989       1070
27 MAR 2017    877        774         681        758
26 MAR 2017   2678       2230        1775       1963
25 MAR 2017   3038       2952        2019       2130
24 MAR 2017   2978       3242        1887       1596
23 MAR 2017   1844       1503         385        618
22 MAR 2017   1872       1444         367        674
21 MAR 2017   1952       1438         754       1133
20 MAR 2017   2198       2097        1258       1776
19 MAR 2017   3203       3256        1844       1945
18 MAR 2017   3390       3112        2069       2149
17 MAR 2017   2685       2530        1689       1693
16 MAR 2017   1793       1341         712        530
15 MAR 2017   1764       1289        -NR-        748
 
             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)
28 MAR 2017    104       2169      1408         882        280
27 MAR 2017    101       2142      1235        1450        317
26 MAR 2017   -NR-       2292       670        1253        336
25 MAR 2017   -NR-       2386       823        1525        189
24 MAR 2017   -NR-       2207      1218        1523         50
23 MAR 2017     82       2330      1327        1426         41
22 MAR 2017    102       2116      1456        1245        159
21 MAR 2017     80       1862      1444        1118        170
20 MAR 2017     68       1771      1051        1120        287
19 MAR 2017    119       1751       385        1073        243
18 MAR 2017     52       1773       426        1108         99
17 MAR 2017    116       1650       918        1021        -29
16 MAR 2017    149       1110       811         506        -42
15 MAR 2017     64        744       527        1071       -120
 
             S-308    Below S-308    S-80
           Discharge   Discharge   Discharge
           (ALL DAY)   (ALL-DAY)   (ALL-DAY)
   DATE     (AC-FT)     (AC-FT)     (AC-FT)
28 MAR 2017      1         166          51
27 MAR 2017    744         221          58
26 MAR 2017   1718         353          57
25 MAR 2017   1106         582          53
24 MAR 2017   2075         438          22
23 MAR 2017   1789         183          40
22 MAR 2017    779         446          56
21 MAR 2017      2         616          49
20 MAR 2017   -NR-         357          42
19 MAR 2017      2         571          61
18 MAR 2017      1         768          68
17 MAR 2017      1         507          60
16 MAR 2017      1         706          38
15 MAR 2017      0         328          46
 
***  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 29MAR2017 @ 08:45  ** Preliminary Data - Subject to Revision **