U. S. Army Corps of Engineers, Jacksonville District
                       Lake Okeechobee and Vicinity Report
 
Data Ending 2400 hours   20 JUL 2008
_____________________________________________________________________________
 
Okeechobee Lake Regulation      Elevation   Last Year  2YRS Ago
                                (ft-NGVD)   (ft-NGVD)  (ft-NGVD)
  *Okeechobee Lake Elevation       10.34        9.08    12.22 (Official Elv)
  Bottom of High Lake Mngmt= 16.23  Top of Water Short Mngmt= 11.51
  Currently in Water Shortage Management Band
 
  20JUL (1965-2006) Period of Record Average    13.76
  Difference from POR Average                  -3.42
 
  Simulated Average LORS2008 [1965-2000]    12.55
  Difference from Average LORS2008         -2.21
 
  Today Lake Okechobee elevation is determined from the 4 interior stations
 
  ++Navigation Depths (Based on 2001 Channel Condition Survey) Route 1 ÷  4.28'
                                                               Route 2 ÷  1.68'
  Bridge Clearance = 51.17'
______________________________________________________________________________
 
4 Interior and 4 Edge Okeechobee Lake Average (Avg-Daily values):
                                     (BAD)
  L001   L005   L006   LZ40   S4     S352   S308   S133
  10.32  10.40  10.15  10.48  10.56  10.57   10.34 10.55
 
 *Combination Okeechobee  Avg-Daily Lake Average =  10.42
                                                   (*See Note)
 
Interior Okeechobee Lake Average (Avg-Daily values):
  L001   L005   L006   LZ40
  10.32  10.40  10.15  10.48
 
 *Interior Okeechobee Avg-Daily Lake Average =    10.34
                                                 (*See Note)
 
Okeechobee Lake Average (Avg-Daily values):
               (BAD)  (BAD)   (BAD)                       (BAD)  (BAD)
  C5     S4     S3     S2     S352   S308   S135   S133   S127   S129
  10.85  10.56  10.48  10.39  10.57   10.34 10.41  10.55  11.25  12.06
 
 *Edge Okeechobee Avg-Daily Lake Average =        10.75
                                                 (*See Note)
 
______________________________________________________________________________
 
Okeechobee Inflows (cfs):
  S65E           1890      S191              0      Fisheating Cr  -NR-
  S154             66      S133 Pumps     -NR-      S135 Pumps        0
  S84              34      S127 Pumps        0      S2 Pumps          0
  S71            2114      S129 Pumps        0      S3 Pumps          0
  S72             318      S131 Pumps        0      S4 Pumps          0
Total Inflows:   4422
 
Okeechobee Outflows (cfs):
  S135 Culverts     0      S354           -NR-      S77            -NR-
  S127 Culverts  -NR-      S351           -NR-      S308    (BAD)  -933
  S129 Culverts     0      S352           -NR-
  S131 Culverts            L8 Canal Pt    -662
  C5             -NR-
Total Outflows: No Report Due To Missing S77 or S308 Discharge Data
 
Okeechobee Pan Evaporation (inches):
  S77            0.28      S308           0.36
  Average Pan Evap x 0.75 Pan Coefficient =  0.24" =  0.02'
 
Lake Average Precipitation using NEXRAD: =  0.00" =  0.00'
 
Evaporation - Precipitation:             =  0.24" =  0.02'
Evaporation - Precipitation using Lake Area of 730 square miles
  is equal to   4711 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:  13.12     10.59    -NR-      0    0    0    0 -NR-  (cfs)
  S193:       ______
  S191:        18.76     10.41       0    0.0  0.0  0.0
  S135 Pumps:  11.33     10.39       0      0    0    0    0       (cfs)
  S135 Culverts:                     0    0.0  0.0
 
North West Shore
  S65E:        21.03     10.22    1890    0.6  0.7  0.5  0.5  0.6  0.6
  S127 Pumps:  13.71     11.22       0      0    0    0    0    0  (cfs)
  S127 Culvert:                   -NR-   -NR-
 
  S129 Pumps:  12.64     12.02       0      0    0    0            (cfs)
  S129 Culvert:                      0    0.0
 
  S131 Pumps:  13.42     12.61       0      0    0                 (cfs)
  S131 Culvert:
 
  Fisheating Creek
    nr Palmdale         ______    -NR-
    nr Lakeport         ______
  C5:         ______    10.85   -NR-   -NR- -NR- -NR-
 
South Shore
  S4 Pumps:    10.56     10.51       0      0    0    0            (cfs)
  S169:        10.47     10.73       0    0.0  0.0  0.0
  S310:       ______              -NR-
  S3 Pumps:   ______      -NR-       0      0    0    0            (cfs)
  S354:         -NR-    ______    -NR-   -NR- -NR-
  S2 Pumps:    10.58     10.37       0      0    0    0    0       (cfs)
  S351:        10.37     10.58    -NR-   -NR- -NR- -NR-
  S352:       ______      -NR-    -NR-   -NR- -NR-
  C10A:         -NR-     11.52           -NR-  -NR-   8.0  -NR-  -NR-
  L8 Canal PT            11.64    -662
 
  _________________________________________________________________________
                               Temporary Pumps
 
  S351:        10.58     10.37    -NR-  -NR--NR--NR--NR--NR--NR-
  S352:         -NR-    ______    -NR-  -NR--NR--NR--NR-
  S354:       ______      -NR-    -NR-  -NR--NR--NR--NR-
  _________________________________________________________________________
 
Caloosahatchee River (S77, S78, S79)
  S47B:        11.12     12.64            0.0  0.0
  S47D:        12.72     10.72      22    0.0
  S77:
    Spillway and Sector Flow:
                -NR-      -NR-    -NR-    5.0 -NR- -NR- -NR-
    Flow Due to Lockages+:        -NR-
 
  S77 Below USGS Flow Gage        -451 (TESTING)
 
  S78:
    Spillway and Sector Flow:
               11.02      3.20       0    0.0  0.0  0.0  0.0
    Flow Due to Lockages+:           0
 
  S79:
    Spillway and Sector Flow:
                3.28      1.21    1776    0.5  1.0  1.0  1.0  1.0  1.0  1.0  0.5
    Flow Due to Lockages+:           1
    Percent of flow from S77      -NR-%
    Chloride            (ppm)     69
 
 
St. Lucie Canal (S308, S80)
  S308:
    Spillway and Sector Flow:
               10.33     12.33    -933    0.0  0.0  0.0  0.0
    Flow Due to Lockages+:           0
 
  S308 Below USGS Flow Gage       -NR-
  S153:        18.89     12.29    -NR-   -NR-  0.0
  S80:
    Spillway and Sector Flow:
               12.52      1.09       0    0.0  0.0  0.0  0.0  0.0  0.0  0.0
    Flow Due to Lockages+:           0
    Percent of flow from S308     -NR-%
 
  Steele Point Top Salinity    (mg/ml)   30
  Steele Point Bottom Salinity (mg/ml)   26
 
  Speedy Point Top Salinity    (mg/ml)   16
  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        1.03
  S193:                        -NR-        0.00        0.00     -NR-    -NR-
  Okeechobee Field Station:    -NR-        0.00        0.33
  S135 Pump Station:           -NR-        0.00        0.14
  S127 Pump Station:           -NR-        0.00        0.95
  S129 Pump Station:           -NR-        0.00        1.29
  S131 Pump Station:           -NR-        0.00        0.41
  S77:                         -NR-        0.00        0.00     -NR-    -NR-
  S78:                         0.00        0.04        2.84        3       0
  S79:                         0.01        0.84        2.49      165       0
  S4 Pump Station:             -NR-        0.00        0.00
  Clewiston Field Station:     -NR-        0.00        2.51
  S3 Pump Station:             -NR-        0.00        0.54
  S2 Pump Station:             -NR-        0.00        0.82
  S308:                        0.00        0.00        0.12      199       3
  S80:                         0.00        0.26        0.58       26       0
        Okeechobee Average     0.00        0.00        0.63
        (Sites S78, S79 and S80 not included)
 
______________________________________________________________________________
Okeechobee Lake Elevations  20 JUL 2008           10.34 Difference from 20JUL08
   20JUL08  -1 Day  =       19 JUL 2008           10.33            -0.01
   20JUL08  -2 Days =       18 JUL 2008           10.31            -0.03
   20JUL08  -3 Days =       17 JUL 2008           10.28            -0.06
   20JUL08  -4 Days =       16 JUL 2008           10.23            -0.11
   20JUL08  -5 Days =       15 JUL 2008           10.17            -0.17
   20JUL08  -6 Days =       14 JUL 2008           10.04            -0.30
   20JUL08  -7 Days =       13 JUL 2008            9.94            -0.40
   20JUL08 -30 Days =       20 JUN 2008            9.27            -1.07
   20JUL08  -1 Year =       20 JUL 2007            9.08            -1.26
   20JUL08  -2 Year =       20 JUL 2006           12.22             1.88
______________________________________________________________________________
Long Term Mean 30day Avearge ET for Lake Alfred (Inches) =  4.46
______________________________________________________________________________
                         Lake Okeechobee Net Inflow (LONIN)
                   Average Flow over the previous 14 days  |  Avg-Daily Flow
   20JUL08    Today =       20 JUL 2008      -NR-  MON     |      -NR-
   20JUL08  -1 Day  =       19 JUL 2008      -NR-  SUN     |      -NR-
   20JUL08  -2 Days =       18 JUL 2008      -NR-  SAT     |      -NR-
   20JUL08  -3 Days =       17 JUL 2008      -NR-  FRI     |      -NR-
   20JUL08  -4 Days =       16 JUL 2008      -NR-  THU     |      -NR-
   20JUL08  -5 Days =       15 JUL 2008      -NR-  WED     |      -NR-
   20JUL08  -6 Days =       14 JUL 2008      -NR-  TUE     |      -NR-
   20JUL08  -7 Days =       13 JUL 2008      -NR-  MON     |      -NR-
   20JUL08  -8 Days =       12 JUL 2008      -NR-  SUN     |      -NR-
   20JUL08  -9 Days =       11 JUL 2008      -NR-  SAT     |      -NR-
   20JUL08 -10 Days =       10 JUL 2008      -NR-  FRI     |      -NR-
   20JUL08 -11 Days =       09 JUL 2008      -NR-  THU     |      -NR-
   20JUL08 -12 Days =       08 JUL 2008      -NR-  WED     |      -NR-
   20JUL08 -13 Days =       07 JUL 2008      -NR-  TUE     |      -NR-
______________________________________________________________________________
______________________________________________________________________________
                                 S65E
                       Average Flow over previous 14 days  |  Avg-Daily Flow
   20JUL08     Today=       20 JUL 2008      1142  MON     |      1890
   20JUL08  -1 Day  =       19 JUL 2008      1101  SUN     |      2014
   20JUL08  -2 Days =       18 JUL 2008      1050  SAT     |      1975
   20JUL08  -3 Days =       17 JUL 2008       974  FRI     |      1059
   20JUL08  -4 Days =       16 JUL 2008       955  THU     |       372
   20JUL08  -5 Days =       15 JUL 2008       944  WED     |      1054
   20JUL08  -6 Days =       14 JUL 2008       900  TUE     |       778
   20JUL08  -7 Days =       13 JUL 2008       871  MON     |       975
   20JUL08  -8 Days =       12 JUL 2008       827  SUN     |       307
   20JUL08  -9 Days =       11 JUL 2008       841  SAT     |      1225
   20JUL08 -10 Days =       10 JUL 2008       753  FRI     |      1161
   20JUL08 -11 Days =       09 JUL 2008       675  THU     |      1222
   20JUL08 -12 Days =       08 JUL 2008       606  WED     |       398
   20JUL08 -13 Days =       07 JUL 2008       607  TUE     |      1556
______________________________________________________________________________
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)
20 JUL 2008   -NR-      -NR-         0          0       -NR-       -1850
19 JUL 2008   -NR-      -NR-         0         10       -NR-       -3220
18 JUL 2008   -NR-      -NR-         0          0       -NR-       -2657
17 JUL 2008   -NR-      -NR-         0          5        -13       -3268
16 JUL 2008   -NR-      -NR-         0          0       -130        -918
15 JUL 2008   -NR-      -NR-         0          4       -554       -2776
14 JUL 2008   -NR-      -NR-         0       -NR-       -NR-       -2165
13 JUL 2008   -NR-      -NR-         0       -NR-       -NR-        -NR-
12 JUL 2008      0      -NR-         0       -NR-         19           0
11 JUL 2008      0         0         0          4       -NR-        -NR-
10 JUL 2008      0      -270         0          4       -NR-        -704
09 JUL 2008   -990     -1943         0          5       -NR-       -2207
08 JUL 2008   -715      -960         0          0       -450       -4373
07 JUL 2008   -NR-      -NR-         0          2       -248       -3177
 
             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)
20 JUL 2008   3524      -NR-       -NR-      -NR-        -NR-      -1312
19 JUL 2008   4205      -NR-       -NR-      -NR-        -NR-      -1203
18 JUL 2008   4263      -NR-       -NR-      -NR-        -NR-      -1142
17 JUL 2008   6489      -NR-       -NR-      -NR-        -NR-       -905
16 JUL 2008   7314      -NR-       -NR-      -NR-        -NR-       -982
15 JUL 2008   5783      -NR-       -NR-      -NR-        -NR-      -1318
14 JUL 2008   6791      -NR-       -NR-      -NR-        -NR-      -1400
13 JUL 2008   3657      -NR-       -NR-      -NR-        -NR-      -1254
12 JUL 2008   1952      -NR-       -NR-      -NR-        -NR-      -1344
11 JUL 2008   1138      -NR-       -NR-      -NR-        -NR-      -1157
10 JUL 2008   1756      -NR-       -NR-      -NR-        -NR-       -825
09 JUL 2008   3024      -NR-       -NR-      -NR-        -NR-       -907
08 JUL 2008   2917      -NR-       -NR-      -NR-        -NR-      -1021
07 JUL 2008   1047      -NR-       -NR-      -NR-        -NR-      -1207
***  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 21JUL2008 @ 15:15  ** Preliminary Data - Subject to Revision **