U. S. Army Corps of Engineers, Jacksonville District
                       Lake Okeechobee and Vicinity Report
 
Data Ending 2400 hours   27 APR 2008
_____________________________________________________________________________
 
Okeechobee Lake Regulation      Elevation   Last Year  2YRS Ago
                                (ft-NGVD)   (ft-NGVD)  (ft-NGVD)
  *Okeechobee Lake Elevation       10.35        9.73    13.64 (Official Elv)
  Regulation Zone Elevations    B=  -NR-    C= 16.79   D= 15.85     E= 13.79
 
  27APR (1965-2006) Period of Record Average    13.76
  Difference from POR Average                  -3.41
 
  Simulated Average LORSS2007 TSP[1965-2000]    12.45
  Difference from Average LORSS2007 TSP        -2.10
 
  Today Lake Okechobee elevation is determined from the 4 interior stations
 
  ++Navigation Depths (Based on 2001 Channel Condition Survey) Route 1 ÷  4.29'
                                                               Route 2 ÷  1.69'
  Bridge Clearance = 53.32'
______________________________________________________________________________
 
4 Interior and 4 Edge Okeechobee Lake Average (Avg-Daily values):
                                     (BAD)
  L001   L005   L006   LZ40   S4     S352   S308   S133
  10.27  10.41  10.30  10.42  10.44  10.50   10.27 10.49
 
 *Combination Okeechobee  Avg-Daily Lake Average =  10.39
                                                   (*See Note)
 
Interior Okeechobee Lake Average (Avg-Daily values):
  L001   L005   L006   LZ40
  10.27  10.41  10.30  10.42
 
 *Interior Okeechobee Avg-Daily Lake Average =    10.35
                                                 (*See Note)
 
Okeechobee Lake Average (Avg-Daily values):
               (BAD)  (BAD)   (BAD)                       (BAD)  (BAD)
  C5     S4     S3     S2     S352   S308   S135   S133   S127   S129
  10.57  10.44  10.42  10.31  10.50   10.27 10.43  10.49  11.01  10.68
 
 *Edge Okeechobee Avg-Daily Lake Average =        10.51
                                                 (*See Note)
 
______________________________________________________________________________
 
Okeechobee Inflows (cfs):
  S65E            976      S191           3239      Fisheating Cr  -NR-
  S154              0      S133 Pumps        0      S135 Pumps        0
  S84               0      S127 Pumps        0      S2 Pumps          0
  S71               0      S129 Pumps        0      S3 Pumps          0
  S72               0      S131 Pumps        0      S4 Pumps          0
Total Inflows:   4215
 
Okeechobee Outflows (cfs):
  S135 Culverts     0      S354           -NR-      S77             208
  S127 Culverts  -NR-      S351           -NR-      S308    (BAD)     0
  S129 Culverts     0      S352              0
  S131 Culverts            L8 Canal Pt     -12
  C5             -NR-
Total Outflows:   197 (BAD VALUE)
 
Okeechobee Pan Evaporation (inches):
  S77            0.22      S308           0.31
  Average Pan Evap x 0.75 Pan Coefficient =  0.20" =  0.02'
 
Lake Average Precipitation using NEXRAD: =  0.00" =  0.00'
 
Evaporation - Precipitation:             =  0.20" =  0.02'
Evaporation - Precipitation using Lake Area of 730 square miles
  is equal to   3901 cfs out of the lake.
Lake Okeechobee (Change in Storage) Flow is  -1664 cfs or  -3300 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:  12.53     10.60       0      0    0    0    0    0  (cfs)
  S193:       ______
  S191:        19.56     10.43    3239    0.0  6.6  0.0
  S135 Pumps:  10.98     10.41       0      0    0    0    0       (cfs)
  S135 Culverts:                     0    0.0  0.0
 
North West Shore
  S65E:        20.66     10.34     976    0.4  0.3  0.4  0.2  0.3  0.3
  S127 Pumps:  12.87     11.00       0      0    0    0    0    0  (cfs)
  S127 Culvert:                   -NR-   -NR-
 
  S129 Pumps:  10.70     10.67       0      0    0    0            (cfs)
  S129 Culvert:                      0    0.0
 
  S131 Pumps:  12.19     11.14       0      0    0                 (cfs)
  S131 Culvert:
 
  Fisheating Creek
    nr Palmdale         ______    -NR-
    nr Lakeport         ______
  C5:         ______    10.57   -NR-   -NR- -NR- -NR-
 
South Shore
  S4 Pumps:    10.47     10.36       0      0    0    0            (cfs)
  S169:        10.37     10.64       0    0.0  0.0  0.0
  S310:       ______              -NR-
  S3 Pumps:   ______      -NR-       0      0    0    0            (cfs)
  S354:         -NR-    ______    -NR-   -NR- -NR-
  S2 Pumps:    10.47     10.22       0      0    0    0    0       (cfs)
  S351:        10.22     10.47    -NR-   -NR- -NR- -NR-
  S352:        10.48      9.56       0   -NR- -NR-
  C10A:         -NR-     10.19           -NR-  -NR-   8.0  -NR-  -NR-
  L8 Canal PT            10.37     -12
 
  _________________________________________________________________________
                               Temporary Pumps
 
  S351:        10.47     10.22    -NR-  -NR--NR--NR--NR--NR--NR-
  S352:         9.56     10.48       0  -NR--NR--NR--NR-
  S354:       ______      -NR-    -NR-  -NR--NR--NR--NR-
  _________________________________________________________________________
 
Caloosahatchee River (S77, S78, S79)
  S47B:        10.44     10.45            0.0  0.0
  S47D:        10.48     10.14       0    0.0
  S77:
    Spillway and Sector Flow:
               10.33     10.28     208    1.0  1.0  1.0  1.0
    Flow Due to Lockages+:           0
 
  S78:
    Spillway and Sector Flow:
               10.42      4.35     109    0.0  0.0  0.0  0.0
    Flow Due to Lockages+:           9
 
  S79:
    Spillway and Sector Flow:
                3.18      1.74       0    0.0  0.0  0.0  0.0  0.0  0.0  0.0  0.0
    Flow Due to Lockages+:           1
    Percent of flow from S77      -NR-%
    Chloride            (ppm)    181
 
 
St. Lucie Canal (S308, S80)
  S308:
    Spillway and Sector Flow:
               10.20     10.18       0    0.0  0.0  0.0  0.0
    Flow Due to Lockages+:           0
 
  S308 Below USGS Flow Gage         63
  S153:        18.50     10.09    -NR-   -NR-  0.0
  S80:
    Spillway and Sector Flow:
               10.26     -0.16       0    0.0  0.0  0.0  0.0  0.0  0.0  0.0
    Flow Due to Lockages+:           4
    Percent of flow from S308     -NR-%
 
  Steele Point Top Salinity    (mg/ml)   34
  Steele Point Bottom Salinity (mg/ml)   31
 
  Speedy Point Top Salinity    (mg/ml)   19
  Speedy Point Bottom Salinity (mg/ml)   19
 
 + 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        0.02       81       5
  S78:                         0.00        0.00        0.00       14       3
  S79:                         0.00        0.00        0.00      164       3
  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      189       3
  S80:                         0.00        0.01        0.01       31       0
        Okeechobee Average     0.00        0.00        0.00
        (Sites S78, S79 and S80 not included)
 
______________________________________________________________________________
Okeechobee Lake Elevations  27 APR 2008           10.35 Difference from 27APR08
   27APR08  -1 Day  =       26 APR 2008           10.36             0.01
   27APR08  -2 Days =       25 APR 2008           10.38             0.03
   27APR08  -3 Days =       24 APR 2008           10.39             0.04
   27APR08  -4 Days =       23 APR 2008           10.39             0.04
   27APR08  -5 Days =       22 APR 2008           10.41             0.06
   27APR08  -6 Days =       21 APR 2008           10.41             0.06
   27APR08  -7 Days =       20 APR 2008           10.42             0.07
   27APR08 -30 Days =       28 MAR 2008           10.25            -0.10
   27APR08  -1 Year =       27 APR 2007            9.73            -0.62
   27APR08  -2 Year =       27 APR 2006           13.64             3.29
______________________________________________________________________________
Long Term Mean 30day Avearge ET for Lake Alfred (Inches) =  4.51
______________________________________________________________________________
                         Lake Okeechobee Net Inflow (LONIN)
                   Average Flow over the previous 14 days  |  Avg-Daily Flow
   27APR08    Today =       27 APR 2008      -NR-  MON     |      -NR-
   27APR08  -1 Day  =       26 APR 2008      -NR-  SUN     |      -NR-
   27APR08  -2 Days =       25 APR 2008      -NR-  SAT     |      -NR-
   27APR08  -3 Days =       24 APR 2008      -NR-  FRI     |      -NR-
   27APR08  -4 Days =       23 APR 2008      -NR-  THU     |      -NR-
   27APR08  -5 Days =       22 APR 2008      -NR-  WED     |      -NR-
   27APR08  -6 Days =       21 APR 2008      -NR-  TUE     |      -NR-
   27APR08  -7 Days =       20 APR 2008      -NR-  MON     |      -NR-
   27APR08  -8 Days =       19 APR 2008      -NR-  SUN     |      -NR-
   27APR08  -9 Days =       18 APR 2008      -NR-  SAT     |      -NR-
   27APR08 -10 Days =       17 APR 2008      -NR-  FRI     |      -NR-
   27APR08 -11 Days =       16 APR 2008      -NR-  THU     |      -NR-
   27APR08 -12 Days =       15 APR 2008      -NR-  WED     |      -NR-
   27APR08 -13 Days =       14 APR 2008      -NR-  TUE     |      -NR-
______________________________________________________________________________
______________________________________________________________________________
                                 S65-E
                       Average Flow over previous 14 days  |  Avg-Daily Flow
   27APR08     Today=       27 APR 2008      1438  MON     |       976
   27APR08  -1 Day  =       26 APR 2008      1501  SUN     |       991
   27APR08  -2 Days =       25 APR 2008      1558  SAT     |      1184
   27APR08  -3 Days =       24 APR 2008      1603  FRI     |      1238
   27APR08  -4 Days =       23 APR 2008      1632  THU     |      1491
   27APR08  -5 Days =       22 APR 2008      1678  WED     |      1467
   27APR08  -6 Days =       21 APR 2008      1800  TUE     |      1370
   27APR08  -7 Days =       20 APR 2008      1831  MON     |      1384
   27APR08  -8 Days =       19 APR 2008      1849  SUN     |      1572
   27APR08  -9 Days =       18 APR 2008      1860  SAT     |      1570
   27APR08 -10 Days =       17 APR 2008      1876  FRI     |      1540
   27APR08 -11 Days =       16 APR 2008      1931  THU     |      1625
   27APR08 -12 Days =       15 APR 2008      1929  WED     |      1841
   27APR08 -13 Days =       14 APR 2008      1888  TUE     |      1876
______________________________________________________________________________
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)
27 APR 2008    226       413       139        233        124           0
26 APR 2008    404       716       160        285        219           1
25 APR 2008    540       890       159        283        342           1
24 APR 2008    533       643        39         85         75           1
23 APR 2008     40       355         0         12        152           2
22 APR 2008    612      1042         0         10         64           1
21 APR 2008    475       712         0       -NR-        -66           0
20 APR 2008    239       397         0       -NR-        -81           0
19 APR 2008    192       358         0         25         -9           0
18 APR 2008    207       257         0         16        130           0
17 APR 2008     -2        10         0         12        132           1
16 APR 2008     57       -19         0          6         50           0
15 APR 2008   -196      -329         0         15         59           0
14 APR 2008   -330      -592         0         13          8           0
 
             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)
27 APR 2008      3      -NR-       -NR-         0        -NR-        -23
26 APR 2008      5      -NR-       -NR-         0        -NR-        -19
25 APR 2008      3      -NR-       -NR-       246        -NR-         16
24 APR 2008      3      -NR-       -NR-       644        -NR-         28
23 APR 2008      3      -NR-       -NR-       381        -NR-         18
22 APR 2008      2      -NR-       -NR-         0        -NR-        -11
21 APR 2008      4      -NR-       -NR-         0        -NR-       -216
20 APR 2008      4      -NR-       -NR-         0        -NR-       -587
19 APR 2008      4      -NR-       -NR-         0        -NR-       -983
18 APR 2008      4      -NR-       -NR-         0        -NR-      -1084
17 APR 2008      6      -NR-       -NR-         0        -NR-      -1073
16 APR 2008      5      -NR-       -NR-         0        -NR-      -1091
15 APR 2008      4      -NR-       -NR-         0        -NR-      -1153
14 APR 2008    227      -NR-       -NR-         0        -NR-      -1271
***  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 28APR2008 @ 12:15  ** Preliminary Data - Subject to Revision **