U. S. Army Corps of Engineers, Jacksonville District
                       Lake Okeechobee and Vicinity Report
 
Data Ending 2400 hours   19 AUG 2007
_____________________________________________________________________________
 
Okeechobee Lake Regulation      Elevation   Last Year  2YRS Ago
                                (ft-NGVD)   (ft-NGVD)  (ft-NGVD)
  *Okeechobee Lake Elevation        9.54       11.97    15.89 (Official Elv)
  Regulation Zone Elevations    B= 17.37    C= 16.87   D= 16.06     E= 14.62
 
  19AUG (1965-2006) Period of Record Average    14.15
  Difference from POR Average                  -4.61
 
  Simulated Average LORSS2007 TSP[1965-2000]    13.02
  Difference from Average LORSS2007 TSP        -3.48
 
  Today Lake Okechobee elevation is determined from the 4 interior stations
 
  ++Navigation Depths (Based on 2001 Channel Condition Survey) Route 1 ÷  3.48'
                                                               Route 2 ÷  0.88'
  Bridge Clearance = 54.08'
______________________________________________________________________________
 
4 Interior and 4 Edge Okeechobee Lake Average (Avg-Daily values):
                                     (BAD)
  L001   L005   L006   LZ40   S4     S352   S308   S133
   9.32   9.72   9.51   9.62   9.88   9.62    9.35  9.51
 
 *Combination Okeechobee  Avg-Daily Lake Average =   9.57
                                                   (*See Note)
 
Interior Okeechobee Lake Average (Avg-Daily values):
  L001   L005   L006   LZ40
   9.32   9.72   9.51   9.62
 
 *Interior Okeechobee Avg-Daily Lake Average =     9.54
                                                 (*See Note)
 
Okeechobee Lake Average (Avg-Daily values):
               (BAD)  (BAD)   (BAD)                       (BAD)  (BAD)
  C5     S4     S3     S2     S352   S308   S135   S133   S127   S129
   9.99   9.88   9.82   9.88   9.62    9.35  8.73   9.51  12.27  11.83
 
 *Edge Okeechobee Avg-Daily Lake Average =        10.09
                                                 (*See Note)
 
______________________________________________________________________________
 
Okeechobee Inflows (cfs):
  S65E            707      S191              0      Fisheating Cr    75
  S154              0      S133 Pumps        0      S135 Pumps        0
  S84              81      S127 Pumps        0      S2 Pumps          0
  S71              98      S129 Pumps        0      S3 Pumps          0
  S72               0      S131 Pumps        0      S4 Pumps          0
Total Inflows:    961
 
Okeechobee Outflows (cfs):
  S135 Culverts     0      S354              0      S77            -328
  S127 Culverts  -NR-      S351              0      S308    (BAD) -3090
  S129 Culverts     0      S352              0
  S131 Culverts            L8 Canal Pt    -NR-
  C5             -NR-
Total Outflows: -3418 (BAD VALUE)
 
Okeechobee Pan Evaporation (inches):
  S77            0.32      S308           0.31
  Average Pan Evap x 0.75 Pan Coefficient =  0.24" =  0.02'
 
Lake Average Precipitation using NEXRAD: =  0.35" =  0.03'
 
Evaporation - Precipitation:             = -0.11" = -0.01'
Evaporation - Precipitation using Lake Area of 730 square miles
  is equal to   2233 cfs into the lake.
Lake Okeechobee (Change in Storage) Flow is   3126 cfs or   6200 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:   9.47      9.59       0      0    0    0    0    0  (cfs)
  S193:        45.00
  S191:        18.65     10.05       0    0.0  0.0  0.0
  S135 Pumps:   8.91      8.73       0      0    0    0    0       (cfs)
  S135 Culverts:                     0    0.0  0.0
 
North West Shore
  S65E:        20.77      9.28     707    1.0  0.3  0.0  0.0  0.0  0.0
  S127 Pumps:  12.34     12.24       0      0    0    0    0    0  (cfs)
  S127 Culvert:                   -NR-   -NR-
 
  S129 Pumps:  11.35     11.77       0      0    0    0            (cfs)
  S129 Culvert:                      0    0.0
 
  S131 Pumps:  13.09     12.06       0      0    0                 (cfs)
  S131 Culvert:
 
  Fisheating Creek
    nr Palmdale          30.32      75
    nr Lakeport         ______
  C5:         ______     9.99   -NR-   -NR- -NR- -NR-
 
South Shore
  S4 Pumps:     9.99      9.90       0      0    0    0            (cfs)
  S169:         9.82     10.16       0    0.0  0.0  0.0
  S310:       ______              -NR-
  S3 Pumps:   ______      -NR-       0      0    0    0            (cfs)
  S354:         -NR-    ______       0   -NR- -NR-
  S2 Pumps:    10.37      9.88       0      0    0    0    0       (cfs)
  S351:         9.88     10.37       0   -NR- -NR- -NR-
  S352:         9.71     10.46       0   -NR- -NR-
  C10A:         -NR-     10.80           -NR-  -NR-   8.0  -NR-  -NR-
  L8 Canal PT           ______    -NR-
 
  _________________________________________________________________________
                               Temporary Pumps
 
  S351:        10.37      9.88       0  -NR--NR--NR--NR--NR--NR-
  S352:        10.46      9.71       0  -NR--NR--NR--NR-
  S354:       ______      -NR-       0  -NR--NR--NR--NR-
  _________________________________________________________________________
 
Caloosahatchee River (S77, S78, S79)
  S47B:        10.06     10.10            6.0  5.9
  S47D:        10.15     10.09       0    0.0
  S77:
    Spillway and Sector Flow:
               10.06     10.21    -328    1.5  2.0  2.0  1.5
    Flow Due to Lockages+:          -0
 
  S78:
    Spillway and Sector Flow:
               10.20      3.07       0    0.0  0.0  0.0  0.0
    Flow Due to Lockages+:           4
 
  S79:
    Spillway and Sector Flow:
                2.98      0.75     156    0.0  0.0  0.5  0.5  0.5  0.5  0.0  0.0
    Flow Due to Lockages+:           1
    Percent of flow from S77      -210%
    Chloride            (ppm)     82
 
 
St. Lucie Canal (S308, S80)
  S308:
    Spillway and Sector Flow:
                9.36      9.42   -3090    2.5  2.5  2.5  2.5
    Flow Due to Lockages+:           0
 
  S308 Below USGS Flow Gage       -419
  S153:        18.93      9.37       0    0.0  0.0
  S80:
    Spillway and Sector Flow:
                9.63     -0.46       0    0.0  0.0  0.0  0.0  0.0  0.0  0.0
    Flow Due to Lockages+:           1
    Percent of flow from S308     -NR-%
 
  Steele Point Top Salinity    (mg/ml)   25
  Steele Point Bottom Salinity (mg/ml)   25
 
  Speedy Point Top Salinity    (mg/ml)   13
  Speedy Point Bottom Salinity (mg/ml)   14
 
 + 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        0.30
  S193:                        -NR-        0.00        0.00     -NR-    -NR-
  Okeechobee Field Station:    -NR-        0.00        1.55
  S135 Pump Station:           -NR-        0.00        0.38
  S127 Pump Station:           -NR-        0.00        0.54
  S129 Pump Station:           -NR-        0.00        0.17
  S131 Pump Station:           -NR-        0.00        0.94
  S77:                         0.56        0.58        0.58      172       1
  S78:                         0.39        0.39        1.21       26       4
  S79:                         0.03        0.11        0.69       59       6
  S4 Pump Station:             -NR-        0.00        0.00
  Clewiston Field Station:     -NR-        0.00        1.68
  S3 Pump Station:             -NR-        0.03        0.26
  S2 Pump Station:             -NR-        0.33        0.37
  S308:                        0.02        0.08        0.47      158       2
  S80:                         0.15        0.16        5.21      121       4
        Okeechobee Average     0.29        0.08        0.56
        (Sites S78, S79 and S80 not included)
 
______________________________________________________________________________
Okeechobee Lake Elevations  19 AUG 2007            9.54 Difference from 19AUG07
   19AUG07  -1 Day  =       18 AUG 2007            9.52            -0.02
   19AUG07  -2 Days =       17 AUG 2007            9.51            -0.03
   19AUG07  -3 Days =       16 AUG 2007            9.51            -0.03
   19AUG07  -4 Days =       15 AUG 2007            9.50            -0.04
   19AUG07  -5 Days =       14 AUG 2007            9.46            -0.08
   19AUG07  -6 Days =       13 AUG 2007            9.46            -0.08
   19AUG07  -7 Days =       12 AUG 2007            9.47            -0.07
   19AUG07 -30 Days =       20 JUL 2007            9.08            -0.46
   19AUG07  -1 Year =       19 AUG 2006           11.97             2.43
   19AUG07  -2 Year =       19 AUG 2005           15.89             6.35
______________________________________________________________________________
Long Term Mean 30day Avearge ET for Lake Alfred =  4.41
______________________________________________________________________________
                         Lake Okeechobee Net Inflow (LONIN)
                   Average Flow over the previous 14 days  |  Avg-Daily Flow
   19AUG07    Today =       19 AUG 2007      -NR-  MON     |      -NR-
   19AUG07  -1 Day  =       18 AUG 2007      -NR-  SUN     |      -NR-
   19AUG07  -2 Days =       17 AUG 2007      -NR-  SAT     |      -NR-
   19AUG07  -3 Days =       16 AUG 2007      -NR-  FRI     |      -NR-
   19AUG07  -4 Days =       15 AUG 2007      -NR-  THU     |      -NR-
   19AUG07  -5 Days =       14 AUG 2007      -NR-  WED     |      -NR-
   19AUG07  -6 Days =       13 AUG 2007      -NR-  TUE     |      -NR-
   19AUG07  -7 Days =       12 AUG 2007      -NR-  MON     |      -NR-
   19AUG07  -8 Days =       11 AUG 2007      -NR-  SUN     |      -NR-
   19AUG07  -9 Days =       10 AUG 2007      -NR-  SAT     |      -NR-
   19AUG07 -10 Days =       09 AUG 2007      -NR-  FRI     |      -NR-
   19AUG07 -11 Days =       08 AUG 2007      -NR-  THU     |      -NR-
   19AUG07 -12 Days =       07 AUG 2007      -NR-  WED     |      -NR-
   19AUG07 -13 Days =       06 AUG 2007      -NR-  TUE     |      -NR-
______________________________________________________________________________
______________________________________________________________________________
                                 S65-E
                       Average Flow over previous 14 days  |  Avg-Daily Flow
   19AUG07     Today=       19 AUG 2007       892  MON     |       707
   19AUG07  -1 Day  =       18 AUG 2007       972  SUN     |       672
   19AUG07  -2 Days =       17 AUG 2007      1061  SAT     |       857
   19AUG07  -3 Days =       16 AUG 2007      1113  FRI     |      1273
   19AUG07  -4 Days =       15 AUG 2007      1121  THU     |       994
   19AUG07  -5 Days =       14 AUG 2007      1158  WED     |       662
   19AUG07  -6 Days =       13 AUG 2007      1209  TUE     |       664
   19AUG07  -7 Days =       12 AUG 2007      1264  MON     |       654
   19AUG07  -8 Days =       11 AUG 2007      1318  SUN     |       626
   19AUG07  -9 Days =       10 AUG 2007      1383  SAT     |       714
   19AUG07 -10 Days =       09 AUG 2007      1442  FRI     |       962
   19AUG07 -11 Days =       08 AUG 2007      1510  THU     |      1181
   19AUG07 -12 Days =       07 AUG 2007      1525  WED     |      1138
   19AUG07 -13 Days =       06 AUG 2007      1496  TUE     |      1382
______________________________________________________________________________
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)
19 AUG 2007   -332      -651         0          8       -831       -6127
18 AUG 2007   -475      -873         0         10      -1008        -NR-
17 AUG 2007   -678     -1123         0          0      -1359        -NR-
16 AUG 2007   -586     -1011         0          6      -1201      -10030
15 AUG 2007   -358      -NR-         0          4      -2018       -7452
14 AUG 2007   -NR-      -NR-         0          8       -279        -NR-
13 AUG 2007   -NR-      -NR-         0          0       -314        -NR-
12 AUG 2007   -NR-      -NR-         0         13       -535       -4161
11 AUG 2007   -NR-      -NR-         0          4       -276       -4204
10 AUG 2007   -NR-      -NR-         0       -NR-       -229        -NR-
09 AUG 2007   -NR-      -NR-         0       -NR-       -334        -NR-
08 AUG 2007   -NR-      -NR-         0          2     ******        -NR-
07 AUG 2007   -NR-      -NR-         0       -NR-     ******        -NR-
06 AUG 2007   -NR-      -NR-         0       -NR-     ******         432
 
             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)
19 AUG 2007    312      -NR-          0         0           0       -NR-
18 AUG 2007      2      -NR-          0         0           0       -NR-
17 AUG 2007    380      -NR-          0         0           0       -NR-
16 AUG 2007    829      -NR-          0         0           0       -NR-
15 AUG 2007    425      -NR-          0         0           0       -NR-
14 AUG 2007    921      -NR-          0         0           0       -NR-
13 AUG 2007   1008      -NR-          0         0           0       -NR-
12 AUG 2007    985      -NR-          0         0           0       -NR-
11 AUG 2007    779      -NR-          0         0           0       -NR-
10 AUG 2007    248      -NR-          0         0           0       -NR-
09 AUG 2007    446      -NR-          0         0           0       -NR-
08 AUG 2007    509      -NR-          0         0           0       -NR-
07 AUG 2007   1069      -NR-          0         0           0       -NR-
06 AUG 2007      1      -NR-          0         0           0       -NR-
***  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
______________________________________________________________________________
Report Generated 20AUG2007 @ 14:15  ** Preliminary Data - Subject to Revision **