U. S. Army Corps of Engineers, Jacksonville District
                       Lake Okeechobee and Vicinity Report
 
Data Ending 2400 hours   21 SEP 2008
_____________________________________________________________________________
 
Okeechobee Lake Regulation      Elevation   Last Year  2YRS Ago
                                (ft-NGVD)   (ft-NGVD)  (ft-NGVD)
  *Okeechobee Lake Elevation       15.07        9.63    13.45 (Official Elv)
  Bottom of High Lake Mngmt= 16.60  Top of Water Short Mngmt= 12.81
  Currently in Operational Management Band
 
  21SEP (1965-2007) Period of Record Average    14.69
  Difference from POR Average                   0.38
 
  Simulated Average LORS2008 [1965-2000]    13.63
  Difference from Average LORS2008          1.44
 
  Today Lake Okechobee elevation is determined from the 4 interior stations
 
  ++Navigation Depths (Based on 2001 Channel Condition Survey) Route 1 ÷  9.01'
                                                               Route 2 ÷  6.41'
  Bridge Clearance = 48.60'
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4 Interior and 4 Edge Okeechobee Lake Average (Avg-Daily values):
 
  L001   L005   L006   LZ40   S4     S352   S308   S133
  14.95  15.10  15.06  15.18  15.13  15.27   15.04 15.11
 
 *Combination Okeechobee  Avg-Daily Lake Average =  15.10
                                                   (*See Note)
 
Interior Okeechobee Lake Average (Avg-Daily values):
 
  L001   L005   L006   LZ40
  14.95  15.10  15.06  15.18
 
 *Interior Okeechobee Avg-Daily Lake Average =    15.07
                                                 (*See Note)
 
Okeechobee Lake Average (Avg-Daily values):
                                                          (BAD)  (BAD)
  C5     S4     S3     S2     S352   S308   S135   S133   S127   S129
  15.06  15.13  15.20  15.11  15.27   15.04 14.95  15.11  15.04  15.07
 
 *Edge Okeechobee Avg-Daily Lake Average =        15.10
                                                 (*See Note)
 
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Okeechobee Inflows (cfs):
  S65E           2152      S191              0      Fisheating Cr   187
  S154             44      S133 Pumps     -NR-      S135 Pumps        0
  S84               0      S127 Pumps        0      S2 Pumps          0
  S71             221      S129 Pumps       74      S3 Pumps          0
  S72               0      S131 Pumps        0      S4 Pumps          0
Total Inflows:   2678
 
Okeechobee Outflows (cfs):
  S135 Culverts     0      S354              0      S77            -NR-
  S127 Culverts  -NR-      S351              0      S308           3564
  S129 Culverts     0      S352              0
  S131 Culverts            L8 Canal Pt     192
  C5             -NR-
Total Outflows: No Report Due To Missing S77 or S308 Discharge Data
 
Okeechobee Pan Evaporation (inches):
  S77            0.27      S308           0.22
  Average Pan Evap x 0.75 Pan Coefficient =  0.18" =  0.02'
 
Lake Average Precipitation using NEXRAD: =  0.11" =  0.01'
 
Evaporation - Precipitation:             =  0.07" =  0.01'
Evaporation - Precipitation using Lake Area of 730 square miles
  is equal to   1448 cfs out of the lake.
Lake Okeechobee (Change in Storage) Flow is  -4336 cfs or  -8600 AC-FT
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______________________________________________________________________________
 
 
 
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:  13.71     15.00    -NR-      0    0    0    0 -NR-  (cfs)
  S193:       ______
  S191:        19.32     14.71       0    0.0  0.0  0.0
  S135 Pumps:  13.21     14.88       0      0    0    0    0       (cfs)
  S135 Culverts:                     0    0.0  0.0
 
North West Shore
  S65E:        21.03     14.69    2152    0.9  0.9  0.9  0.9  0.9  0.9
  S127 Pumps:  13.59     15.05       0      0    0    0    0    0  (cfs)
  S127 Culvert:                   -NR-   -NR-
 
  S129 Pumps:  13.11     15.04      74     12   18   43            (cfs)
  S129 Culvert:                      0    0.0
 
  S131 Pumps:  13.37     15.22       0      0    0                 (cfs)
  S131 Culvert:
 
  Fisheating Creek
    nr Palmdale          31.50     187
    nr Lakeport         ______
  C5:         ______    15.06   -NR-   -NR- -NR- -NR-
 
South Shore
  S4 Pumps:    10.82     15.11       0      0    0    0            (cfs)
  S169:        15.19     10.98       0    0.0  0.0  0.0
  S310:       ______              -NR-
  S3 Pumps:   ______      -NR-       0      0    0    0            (cfs)
  S354:         -NR-    ______       0   -NR- -NR-
  S2 Pumps:    10.87     15.08       0      0    0    0    0       (cfs)
  S351:        15.08     10.87       0   -NR- -NR- -NR-
  S352:        15.24     10.45       0    0.0  0.0
  C10A:         -NR-     14.32           -NR-  -NR-   7.0  -NR-  -NR-
  L8 Canal PT            14.40     192
 
  _________________________________________________________________________
                               Temporary Pumps
 
  S351:        10.87     15.08       0  -NR--NR--NR--NR--NR--NR-
  S352:        10.45     15.24       0  -NR--NR--NR--NR-
  S354:       ______      -NR-       0  -NR--NR--NR--NR-
  _________________________________________________________________________
 
Caloosahatchee River (S77, S78, S79)
  S47B:        14.72     12.19            0.0  0.0
  S47D:        12.20     10.76       0    0.0
  S77:
    Spillway and Sector Flow:
               14.74     10.94    4044    3.9  3.9  3.9  3.8
    Flow Due to Lockages+:        -NR-
 
  S77 Below USGS Flow Gage        3761 (TESTING)
 
  S78:
    Spillway and Sector Flow:
               10.70      3.07    3457    3.0  3.0  3.0  3.0
    Flow Due to Lockages+:           5
 
  S79:
    Spillway and Sector Flow:
                2.81      1.71    4738    2.0  2.0  3.0  3.0  3.0  3.0  2.0  2.0
    Flow Due to Lockages+:           5
    Percent of flow from S77        85%
    Chloride            (ppm)     45
 
 
St. Lucie Canal (S308, S80)
  S308:
    Spillway and Sector Flow:
               15.06     14.90    3564    6.0  6.0  6.0  6.0
    Flow Due to Lockages+:           0
 
  S308 Below USGS Flow Gage       2570
  S153:        18.70     14.78     118   -NR-  0.5
  S80:
    Spillway and Sector Flow:
               14.23      1.56    2151    0.0  0.7  0.7  0.7  0.7  0.7  0.7
    Flow Due to Lockages+:          12
    Percent of flow from S308      166%
 
  Steele Point Top Salinity    (mg/ml)   28
  Steele Point Bottom Salinity (mg/ml)   25
 
  Speedy Point Top Salinity    (mg/ml)   14
  Speedy Point Bottom Salinity (mg/ml)    9
 
 + 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:           0.01        1.63        2.03
  S193:                        -NR-        0.00        0.00     -NR-    -NR-
  Okeechobee Field Station:    0.02        0.02        0.06
  S135 Pump Station:           0.00        0.03        0.13
  S127 Pump Station:           0.02        0.02        0.11
  S129 Pump Station:           1.80        1.80        2.13
  S131 Pump Station:           0.00        0.00        0.39
  S77:                         0.00        0.00      753.60      360       0
  S78:                         0.03        0.04        0.65       18       0
  S79:                         0.61        0.61        1.96       47       3
  S4 Pump Station:             -NR-        0.00        0.00
  Clewiston Field Station:     0.00        0.00        0.00
  S3 Pump Station:             0.00        0.00        0.00
  S2 Pump Station:             0.00        0.34        0.82
  S308:                        0.00        0.00        0.53       68       0
  S80:                         0.11        0.28        0.54       12       0
        Okeechobee Average     0.17        0.30       58.45
        (Sites S78, S79 and S80 not included)
 
______________________________________________________________________________
Okeechobee Lake Elevations  21 SEP 2008           15.07 Difference from 21SEP08
   21SEP08  -1 Day  =       20 SEP 2008           15.09             0.02
   21SEP08  -2 Days =       19 SEP 2008           15.11             0.04
   21SEP08  -3 Days =       18 SEP 2008           15.15             0.08
   21SEP08  -4 Days =       17 SEP 2008           15.16             0.09
   21SEP08  -5 Days =       16 SEP 2008           15.16             0.09
   21SEP08  -6 Days =       15 SEP 2008           15.16             0.09
   21SEP08  -7 Days =       14 SEP 2008           15.15             0.08
   21SEP08 -30 Days =       22 AUG 2008           12.83            -2.24
   21SEP08  -1 Year =       21 SEP 2007            9.63            -5.44
   21SEP08  -2 Year =       21 SEP 2006           13.45            -1.62
______________________________________________________________________________
Long Term Mean 30day Avearge ET for Lake Alfred (Inches) =  4.03
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                         Lake Okeechobee Net Inflow (LONIN)
                   Average Flow over the previous 14 days  |  Avg-Daily Flow
   21SEP08    Today =       21 SEP 2008      3239  MON     |      3464
   21SEP08  -1 Day  =       20 SEP 2008      4058  SUN     |      -NR-
   21SEP08  -2 Days =       19 SEP 2008      6275  SAT     |     -3453
   21SEP08  -3 Days =       18 SEP 2008      9828  FRI     |      -NR-
   21SEP08  -4 Days =       17 SEP 2008      9828  THU     |      2036
   21SEP08  -5 Days =       16 SEP 2008     10894  WED     |      -NR-
   21SEP08  -6 Days =       15 SEP 2008     11359  TUE     |      2313
   21SEP08  -7 Days =       14 SEP 2008     12810  MON     |      2489
   21SEP08  -8 Days =       13 SEP 2008     15101  SUN     |      2553
   21SEP08  -9 Days =       12 SEP 2008     16146  SAT     |      3136
   21SEP08 -10 Days =       11 SEP 2008     17329  FRI     |      3546
   21SEP08 -11 Days =       10 SEP 2008     18707  THU     |      8749
   21SEP08 -12 Days =       09 SEP 2008     19814  WED     |      4383
   21SEP08 -13 Days =       08 SEP 2008     21743  TUE     |      6415
______________________________________________________________________________
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                                 S65E
                       Average Flow over previous 14 days  |  Avg-Daily Flow
   21SEP08     Today=       21 SEP 2008      3973  MON     |      2152
   21SEP08  -1 Day  =       20 SEP 2008      4326  SUN     |      2072
   21SEP08  -2 Days =       19 SEP 2008      4801  SAT     |      1738
   21SEP08  -3 Days =       18 SEP 2008      5338  FRI     |      2851
   21SEP08  -4 Days =       17 SEP 2008      5842  THU     |      3032
   21SEP08  -5 Days =       16 SEP 2008      6400  WED     |      3696
   21SEP08  -6 Days =       15 SEP 2008      6997  TUE     |      3505
   21SEP08  -7 Days =       14 SEP 2008      7594  MON     |      3278
   21SEP08  -8 Days =       13 SEP 2008      8268  SUN     |      4671
   21SEP08  -9 Days =       12 SEP 2008      8847  SAT     |      4757
   21SEP08 -10 Days =       11 SEP 2008      9439  FRI     |      4783
   21SEP08 -11 Days =       10 SEP 2008     10055  THU     |      5520
   21SEP08 -12 Days =       09 SEP 2008     10637  WED     |      6728
   21SEP08 -13 Days =       08 SEP 2008     11133  TUE     |      6839
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Lake Okeechobee Outlets Last 14 Days
 
             S-77       S-77       S-78       S-78    Below S308    S-308
           Discharge  Discharge  Discharge  Discharge  Discharge  Discharge
          (0700-2100) (ALL DAY) (0700-2100) (ALL DAY)  (ALL DAY)  (ALL DAY)
   DATE     (AC-FT)    (AC-FT)    (AC-FT)    (AC-FT)    (AC-FT)    (AC-FT)
21 SEP 2008   -NR-      -NR-      4363       6866       5096        7068
20 SEP 2008   2346      -NR-      3265       5286       5187        6782
19 SEP 2008   3055      5158      1736       4706       4753        4861
18 SEP 2008   2119      -NR-      2885       3854       3386        3201
17 SEP 2008   1782      2473      1409       2208       1387        1285
16 SEP 2008    626      -NR-       680        980        598         525
15 SEP 2008      0         7         0        168        176          32
14 SEP 2008      0         7       370        658        565         380
13 SEP 2008      0        11       549        916        868         530
12 SEP 2008      0         6       648       1242       2194        1791
11 SEP 2008      0         5      1109       1305       2955        2681
10 SEP 2008   2276      5999      2886       7391       3001        2758
09 SEP 2008   5361     10197      6860      13181       2884        2796
08 SEP 2008   5176      9264      6488      11563       4282        -NR-
 
             S-79       S-310      S-351      S-352      S-354    L8 Canal Pt
           Discharge  Discharge  Discharge  Discharge  Discharge  Discharge
           (ALL DAY)  (ALL DAY)  (ALL DAY)  (ALL DAY)  (ALL DAY)  (ALL DAY)
   DATE     (AC-FT)    (AC-FT)    (AC-FT)    (AC-FT)    (AC-FT)    (AC-FT)
21 SEP 2008   9404      -NR-          0         0           0        381
20 SEP 2008   7653      -NR-          0         0           0        375
19 SEP 2008   7677      -NR-          0         0           0        333
18 SEP 2008   6963      -NR-          0         0           0        315
17 SEP 2008   4398      -NR-          0         0           0        289
16 SEP 2008   3480      -NR-          0         0           0        232
15 SEP 2008   1318      -NR-          0         0           0        257
14 SEP 2008   3338      -NR-          0         0           0        261
13 SEP 2008   2943      -NR-          0         0           0        236
12 SEP 2008   4660      -NR-          0         0           0        130
11 SEP 2008   4871      -NR-          0         0           0         53
10 SEP 2008   6500      -NR-          0         0           0       -181
09 SEP 2008  18262      -NR-          0         0           0       -303
08 SEP 2008  16073      -NR-          0         0           0       -230
***  NOTE: 1)  Discharge from (0700-2100) is computed using Spillway and Sector
               Gate Discharges from 0700 hrs to 2100 hrs.
           2)  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
______________________________________________________________________________
   * As of 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, we began using the average of the interior 4 station gages
     as the official Lake Okeechobee Elevation.
   * On 16 April 2007,  Lake Okeechobee Elevation was switched to a 8 gage
     mixture of interior and exterior gages due to wind effects on Lake O
   (When the 4 station gages are not working the 10 station elevation is used)
     Today Lake Okechobee elevation is determined from the 4 interior stations
  ++ For more information see the Jacksonville District Navigation website
     at http://www.saj.usace.army.mil/hydroSurvey/hydro.htm
   $ For information regarding Lake Okeechobee Service Area water restrictions
     please refer to www.sfwmd.gov
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Report Generated 22SEP2008 @ 15:15  ** Preliminary Data - Subject to Revision **