U. S. Army Corps of Engineers, Jacksonville District
                       Lake Okeechobee and Vicinity Report
 
Data Ending 2400 hours   11 MAY 2008
_____________________________________________________________________________
 
Okeechobee Lake Regulation      Elevation   Last Year  2YRS Ago
                                (ft-NGVD)   (ft-NGVD)  (ft-NGVD)
  *Okeechobee Lake Elevation       10.03        9.33    13.02 (Official Elv)
  Regulation Zone Elevations    B=  -NR-    C= 16.67   D= 15.72     E= 13.67
 
  11MAY (1965-2006) Period of Record Average    13.44
  Difference from POR Average                  -3.41
 
  Simulated Average LORSS2007 TSP[1965-2000]    12.14
  Difference from Average LORSS2007 TSP        -2.11
 
  Today Lake Okechobee elevation is determined from the 4 interior stations
 
  ++Navigation Depths (Based on 2001 Channel Condition Survey) Route 1 ÷  3.97'
                                                               Route 2 ÷  1.37'
  Bridge Clearance = 53.58'
______________________________________________________________________________
 
4 Interior and 4 Edge Okeechobee Lake Average (Avg-Daily values):
                                     (BAD)
  L001   L005   L006   LZ40   S4     S352   S308   S133
  10.06   9.87  10.04  10.16   9.85  10.42   10.27 10.28
 
 *Combination Okeechobee  Avg-Daily Lake Average =  10.12
                                                   (*See Note)
 
Interior Okeechobee Lake Average (Avg-Daily values):
  L001   L005   L006   LZ40
  10.06   9.87  10.04  10.16
 
 *Interior Okeechobee Avg-Daily Lake Average =    10.03
                                                 (*See Note)
 
Okeechobee Lake Average (Avg-Daily values):
               (BAD)  (BAD)   (BAD)                       (BAD)  (BAD)
  C5     S4     S3     S2     S352   S308   S135   S133   S127   S129
   9.76   9.85  10.13  10.11  10.42   10.27 10.05  10.28  10.85  10.31
 
 *Edge Okeechobee Avg-Daily Lake Average =        10.20
                                                 (*See Note)
 
______________________________________________________________________________
 
Okeechobee Inflows (cfs):
  S65E           1168      S191           -NR-      Fisheating Cr  -NR-
  S154           -NR-      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:   1168
 
Okeechobee Outflows (cfs):
  S135 Culverts     0      S354           -NR-      S77             381
  S127 Culverts  -NR-      S351           -NR-      S308    (BAD)     0
  S129 Culverts     0      S352            330
  S131 Culverts            L8 Canal Pt       0
  C5             -NR-
Total Outflows:   712 (BAD VALUE)
 
Okeechobee Pan Evaporation (inches):
  S77            0.38      S308           0.30
  Average Pan Evap x 0.75 Pan Coefficient =  0.25" =  0.02'
 
Lake Average Precipitation using NEXRAD: =  0.00" =  0.00'
 
Evaporation - Precipitation:             =  0.25" =  0.02'
Evaporation - Precipitation using Lake Area of 730 square miles
  is equal to   5005 cfs out of the lake.
Lake Okeechobee (Change in Storage) Flow is  -7058 cfs or -14000 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:  12.08     10.44       0      0    0    0    0    0  (cfs)
  S193:       ______
  S191:        19.00     10.33    -NR-    0.0 -NR-  0.0
  S135 Pumps:  10.05     10.03       0      0    0    0    0       (cfs)
  S135 Culverts:                     0    0.0  0.0
 
North West Shore
  S65E:        20.72      9.74    1168    0.5  0.5  0.5  0.4  0.4  0.4
  S127 Pumps:  12.34      -NR-       0      0    0    0    0    0  (cfs)
  S127 Culvert:                   -NR-   -NR-
 
  S129 Pumps:  10.32     10.30       0      0    0    0            (cfs)
  S129 Culvert:                      0    0.0
 
  S131 Pumps:  11.80     10.45       0      0    0                 (cfs)
  S131 Culvert:
 
  Fisheating Creek
    nr Palmdale         ______    -NR-
    nr Lakeport         ______
  C5:         ______     9.76   -NR-   -NR- -NR- -NR-
 
South Shore
  S4 Pumps:     9.72      9.80       0      0    0    0            (cfs)
  S169:         9.80      9.90       0    0.0  0.0  0.0
  S310:       ______              -NR-
  S3 Pumps:   ______      -NR-       0      0    0    0            (cfs)
  S354:         -NR-    ______    -NR-   -NR- -NR-
  S2 Pumps:    10.53     10.07       0      0    0    0    0       (cfs)
  S351:        10.07     10.53    -NR-   -NR- -NR- -NR-
  S352:       ______      -NR-     330   -NR- -NR-
  C10A:         -NR-     10.31           -NR-  -NR-   8.0  -NR-  -NR-
  L8 Canal PT            10.39       0
 
  _________________________________________________________________________
                               Temporary Pumps
 
  S351:        10.53     10.07    -NR-  -NR--NR--NR--NR--NR--NR-
  S352:         -NR-    ______     330  -NR--NR--NR--NR-
  S354:       ______      -NR-    -NR-  -NR--NR--NR--NR-
  _________________________________________________________________________
 
Caloosahatchee River (S77, S78, S79)
  S47B:         9.56      9.51            0.5  0.5
  S47D:         9.52      9.55       0    0.0
  S77:
    Spillway and Sector Flow:
               10.71      9.70     380    0.0  0.0  0.0  0.0
    Flow Due to Lockages+:           1
 
  S78:
    Spillway and Sector Flow:
                9.66      3.26      33    0.0  0.0  0.0  0.0
    Flow Due to Lockages+:          12
 
  S79:
    Spillway and Sector Flow:
                3.23      1.85       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)    225
 
 
St. Lucie Canal (S308, S80)
  S308:
    Spillway and Sector Flow:
               10.41      9.92       0    0.0  0.0  0.0  0.0
    Flow Due to Lockages+:           0
 
  S308 Below USGS Flow Gage        -20
  S153:        18.50      9.81       0   -NR-  0.0
  S80:
    Spillway and Sector Flow:
               10.29     -0.58       0    0.0  0.0  0.0  0.0  0.0  0.0  0.0
    Flow Due to Lockages+:           6
    Percent of flow from S308     -NR-%
 
  Steele Point Top Salinity    (mg/ml)   31
  Steele Point Bottom Salinity (mg/ml)   30
 
  Speedy Point Top Salinity    (mg/ml)   21
  Speedy Point Bottom Salinity (mg/ml)   23
 
 + 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        0.68
  S193:                        -NR-        0.00        0.00     -NR-    -NR-
  Okeechobee Field Station:    -NR-        0.00        0.18
  S135 Pump Station:           -NR-        0.00        0.64
  S127 Pump Station:           -NR-        0.00        0.26
  S129 Pump Station:           -NR-        0.00        0.29
  S131 Pump Station:           -NR-        0.00        0.00
  S77:                         0.00        0.00        0.01      191       5
  S78:                         0.01        0.01        1.27       76       5
  S79:                         0.00        0.00        0.00      253      11
  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        1.79      355      20
  S80:                         0.00        0.00        0.00       55       7
        Okeechobee Average     0.00        0.00        0.30
        (Sites S78, S79 and S80 not included)
 
______________________________________________________________________________
Okeechobee Lake Elevations  11 MAY 2008           10.03 Difference from 11MAY08
   11MAY08  -1 Day  =       10 MAY 2008           10.07             0.04
   11MAY08  -2 Days =       09 MAY 2008           10.10             0.07
   11MAY08  -3 Days =       08 MAY 2008           10.09             0.06
   11MAY08  -4 Days =       07 MAY 2008           10.08             0.05
   11MAY08  -5 Days =       06 MAY 2008           10.09             0.06
   11MAY08  -6 Days =       05 MAY 2008           10.11             0.08
   11MAY08  -7 Days =       04 MAY 2008           10.15             0.12
   11MAY08 -30 Days =       11 APR 2008           10.54             0.51
   11MAY08  -1 Year =       11 MAY 2007            9.33            -0.70
   11MAY08  -2 Year =       11 MAY 2006           13.02             2.99
______________________________________________________________________________
Long Term Mean 30day Avearge ET for Lake Alfred (Inches) =  4.85
______________________________________________________________________________
                         Lake Okeechobee Net Inflow (LONIN)
                   Average Flow over the previous 14 days  |  Avg-Daily Flow
   11MAY08    Today =       11 MAY 2008      -NR-  MON     |      -NR-
   11MAY08  -1 Day  =       10 MAY 2008      -NR-  SUN     |      -NR-
   11MAY08  -2 Days =       09 MAY 2008      -NR-  SAT     |      -NR-
   11MAY08  -3 Days =       08 MAY 2008      -NR-  FRI     |      -NR-
   11MAY08  -4 Days =       07 MAY 2008      -NR-  THU     |      -NR-
   11MAY08  -5 Days =       06 MAY 2008      -NR-  WED     |      -NR-
   11MAY08  -6 Days =       05 MAY 2008      -NR-  TUE     |      -NR-
   11MAY08  -7 Days =       04 MAY 2008      -NR-  MON     |      -NR-
   11MAY08  -8 Days =       03 MAY 2008      -NR-  SUN     |      -NR-
   11MAY08  -9 Days =       02 MAY 2008      -NR-  SAT     |      -NR-
   11MAY08 -10 Days =       01 MAY 2008      -NR-  FRI     |      -NR-
   11MAY08 -11 Days =       30 APR 2008      -NR-  THU     |      -NR-
   11MAY08 -12 Days =       29 APR 2008      -NR-  WED     |      -NR-
   11MAY08 -13 Days =       28 APR 2008      -NR-  TUE     |      -NR-
______________________________________________________________________________
______________________________________________________________________________
                                 S65-E
                       Average Flow over previous 14 days  |  Avg-Daily Flow
   11MAY08     Today=       11 MAY 2008       809  MON     |      1168
   11MAY08  -1 Day  =       10 MAY 2008       795  SUN     |       558
   11MAY08  -2 Days =       09 MAY 2008       826  SAT     |       688
   11MAY08  -3 Days =       08 MAY 2008       862  FRI     |       943
   11MAY08  -4 Days =       07 MAY 2008       882  THU     |       830
   11MAY08  -5 Days =       06 MAY 2008       929  WED     |       698
   11MAY08  -6 Days =       05 MAY 2008       984  TUE     |       767
   11MAY08  -7 Days =       04 MAY 2008      1027  MON     |       641
   11MAY08  -8 Days =       03 MAY 2008      1080  SUN     |       638
   11MAY08  -9 Days =       02 MAY 2008      1147  SAT     |       640
   11MAY08 -10 Days =       01 MAY 2008      1214  FRI     |       859
   11MAY08 -11 Days =       30 APR 2008      1262  THU     |      1386
   11MAY08 -12 Days =       29 APR 2008      1279  WED     |       794
   11MAY08 -13 Days =       28 APR 2008      1354  TUE     |       716
______________________________________________________________________________
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)
11 MAY 2008    497       756         0         89        -39           0
10 MAY 2008    572       986       156        288        -40           0
09 MAY 2008    722      1200       153        267         52          28
08 MAY 2008    660      1103       156        277        385          73
07 MAY 2008    552       921       156       -NR-         56          34
06 MAY 2008    519       873         0          8        157          50
05 MAY 2008    429       723         0         91        207           2
04 MAY 2008   -NR-      -NR-      -NR-       -NR-         62        -NR-
03 MAY 2008   -NR-      -NR-      -NR-       -NR-        503        -NR-
02 MAY 2008   -NR-      -NR-      -NR-       -NR-       -NR-        -NR-
01 MAY 2008    484      -NR-       138       -NR-       -NR-        -NR-
30 APR 2008    550       816       134        268         14           1
29 APR 2008    117       162        86        122          7           1
28 APR 2008     14       135         0       -NR-        285           1
 
             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)
11 MAY 2008      3      -NR-       -NR-       654        -NR-          1
10 MAY 2008      5      -NR-       -NR-       654        -NR-        -21
09 MAY 2008      3      -NR-       -NR-       654        -NR-          9
08 MAY 2008      2      -NR-       -NR-       654        -NR-         87
07 MAY 2008   -NR-      -NR-       -NR-       654        -NR-         20
06 MAY 2008      4      -NR-       -NR-       644        -NR-          3
05 MAY 2008      3      -NR-       -NR-       654        -NR-         21
04 MAY 2008   -NR-      -NR-       -NR-       654        -NR-         -8
03 MAY 2008   -NR-      -NR-       -NR-       654        -NR-        -13
02 MAY 2008   -NR-      -NR-       -NR-      -NR-        -NR-       -NR-
01 MAY 2008   -NR-      -NR-       -NR-       654        -NR-       -NR-
30 APR 2008      5      -NR-       -NR-       545        -NR-         45
29 APR 2008      3      -NR-       -NR-       696        -NR-         41
28 APR 2008      3      -NR-       -NR-       527        -NR-         15
***  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 12MAY2008 @ 14:15  ** Preliminary Data - Subject to Revision **