U. S. Army Corps of Engineers, Jacksonville District
                       Lake Okeechobee and Vicinity Report
 
Data Ending 2400 hours   18 MAY 2008
_____________________________________________________________________________
 
Okeechobee Lake Regulation      Elevation   Last Year  2YRS Ago
                                (ft-NGVD)   (ft-NGVD)  (ft-NGVD)
  *Okeechobee Lake Elevation        9.80        9.28    12.90 (Official Elv)
  Regulation Zone Elevations    B=  -NR-    C= 16.61   D= 15.65     E= 13.62
 
  18MAY (1965-2006) Period of Record Average    13.34
  Difference from POR Average                  -3.53
 
  Simulated Average LORSS2007 TSP[1965-2000]    12.04
  Difference from Average LORSS2007 TSP        -2.24
 
  Today Lake Okechobee elevation is determined from the 4 interior stations
 
  ++Navigation Depths (Based on 2001 Channel Condition Survey) Route 1 ÷  3.74'
                                                               Route 2 ÷  1.14'
  Bridge Clearance = 53.82'
______________________________________________________________________________
 
4 Interior and 4 Edge Okeechobee Lake Average (Avg-Daily values):
                                     (BAD)
  L001   L005   L006   LZ40   S4     S352   S308   S133
   9.80   9.70   9.81   9.90   9.67  10.06    9.97 10.03
 
 *Combination Okeechobee  Avg-Daily Lake Average =   9.87
                                                   (*See Note)
 
Interior Okeechobee Lake Average (Avg-Daily values):
  L001   L005   L006   LZ40
   9.80   9.70   9.81   9.90
 
 *Interior Okeechobee Avg-Daily Lake Average =     9.80
                                                 (*See Note)
 
Okeechobee Lake Average (Avg-Daily values):
               (BAD)  (BAD)   (BAD)                       (BAD)  (BAD)
  C5     S4     S3     S2     S352   S308   S135   S133   S127   S129
   9.60   9.67  10.12  10.04  10.06    9.97  9.72  10.03  10.79  10.12
 
 *Edge Okeechobee Avg-Daily Lake Average =        10.01
                                                 (*See Note)
 
______________________________________________________________________________
 
Okeechobee Inflows (cfs):
  S65E            500      S191           -NR-      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:    500
 
Okeechobee Outflows (cfs):
  S135 Culverts     0      S354           -NR-      S77              84
  S127 Culverts  -NR-      S351           -NR-      S308    (BAD)     0
  S129 Culverts     0      S352            440
  S131 Culverts            L8 Canal Pt       2
  C5             -NR-
Total Outflows:   527 (BAD VALUE)
 
Okeechobee Pan Evaporation (inches):
  S77            0.34      S308           0.26
  Average Pan Evap x 0.75 Pan Coefficient =  0.23" =  0.02'
 
Lake Average Precipitation using NEXRAD: =  0.00" =  0.00'
 
Evaporation - Precipitation:             =  0.23" =  0.02'
Evaporation - Precipitation using Lake Area of 730 square miles
  is equal to   4417 cfs out of the lake.
Lake Okeechobee (Change in Storage) Flow is  -4689 cfs or  -9300 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:  11.76     10.15       0      0    0    0    0    0  (cfs)
  S193:       ______
  S191:        18.69     10.10    -NR-    0.0 -NR-  0.0
  S135 Pumps:   9.63      9.69       0      0    0    0    0       (cfs)
  S135 Culverts:                     0    0.0  0.0
 
North West Shore
  S65E:        20.90      9.75     500    0.3  0.1  0.2  0.2  0.2  0.2
  S127 Pumps:  12.04      -NR-       0      0    0    0    0    0  (cfs)
  S127 Culvert:                   -NR-   -NR-
 
  S129 Pumps:  10.14     10.11       0      0    0    0            (cfs)
  S129 Culvert:                      0    0.0
 
  S131 Pumps:  11.55     10.14       0      0    0                 (cfs)
  S131 Culvert:
 
  Fisheating Creek
    nr Palmdale         ______    -NR-
    nr Lakeport         ______
  C5:         ______     9.60   -NR-   -NR- -NR- -NR-
 
South Shore
  S4 Pumps:     9.57      9.67       0      0    0    0            (cfs)
  S169:         9.67      9.73       0    0.0  0.0  0.0
  S310:       ______              -NR-
  S3 Pumps:   ______      -NR-       0      0    0    0            (cfs)
  S354:         -NR-    ______    -NR-   -NR- -NR-
  S2 Pumps:     9.96     10.03       0      0    0    0    0       (cfs)
  S351:        10.03      9.96    -NR-   -NR- -NR- -NR-
  S352:       ______      -NR-     440   -NR- -NR-
  C10A:         -NR-      9.98           -NR-  -NR-   8.0  -NR-  -NR-
  L8 Canal PT            10.30       2
 
  _________________________________________________________________________
                               Temporary Pumps
 
  S351:         9.96     10.03    -NR-  -NR--NR--NR--NR--NR--NR-
  S352:         -NR-    ______     440  -NR--NR--NR--NR-
  S354:       ______      -NR-    -NR-  -NR--NR--NR--NR-
  _________________________________________________________________________
 
Caloosahatchee River (S77, S78, S79)
  S47B:         9.50      8.99            0.0  0.0
  S47D:         9.00      9.22      -7    0.5
  S77:
    Spillway and Sector Flow:
                9.65      9.35      84    0.0  0.0  0.0  0.0
    Flow Due to Lockages+:           0
 
  S78:
    Spillway and Sector Flow:
                9.36      3.11     115    0.0  0.0  0.0  0.0
    Flow Due to Lockages+:           6
 
  S79:
    Spillway and Sector Flow:
                3.08      0.84       0    0.0  0.0  0.0  0.0  0.0  0.0  0.0  0.0
    Flow Due to Lockages+:           2
    Percent of flow from S77      -NR-%
    Chloride            (ppm)    232
 
 
St. Lucie Canal (S308, S80)
  S308:
    Spillway and Sector Flow:
               10.06      9.68       0    0.0  0.0  0.0  0.0
    Flow Due to Lockages+:           0
 
  S308 Below USGS Flow Gage        -20
  S153:        18.29      9.50       0    0.0  0.0
  S80:
    Spillway and Sector Flow:
                9.82      1.23       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)   33
  Steele Point Bottom Salinity (mg/ml)   33
 
  Speedy Point Top Salinity    (mg/ml)   23
  Speedy Point Bottom Salinity (mg/ml)   26
 
 + 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        0.00      128       7
  S78:                         0.00        0.00        0.00       36       4
  S79:                         0.00        0.00        0.04      189       0
  S4 Pump Station:             -NR-        0.00        0.00
  Clewiston Field Station:     -NR-        0.00        0.04
  S3 Pump Station:             -NR-        0.00        0.02
  S2 Pump Station:             -NR-        0.00        0.02
  S308:                        0.00        0.00        0.00      359      16
  S80:                         0.00        0.00        0.00       58       3
        Okeechobee Average     0.00        0.00        0.01
        (Sites S78, S79 and S80 not included)
 
______________________________________________________________________________
Okeechobee Lake Elevations  18 MAY 2008            9.80 Difference from 18MAY08
   18MAY08  -1 Day  =       17 MAY 2008            9.83             0.03
   18MAY08  -2 Days =       16 MAY 2008            9.88             0.08
   18MAY08  -3 Days =       15 MAY 2008            9.93             0.13
   18MAY08  -4 Days =       14 MAY 2008            9.96             0.16
   18MAY08  -5 Days =       13 MAY 2008            9.98             0.18
   18MAY08  -6 Days =       12 MAY 2008            9.98             0.18
   18MAY08  -7 Days =       11 MAY 2008           10.03             0.23
   18MAY08 -30 Days =       18 APR 2008           10.42             0.62
   18MAY08  -1 Year =       18 MAY 2007            9.28            -0.52
   18MAY08  -2 Year =       18 MAY 2006           12.90             3.10
______________________________________________________________________________
Long Term Mean 30day Avearge ET for Lake Alfred (Inches) =  4.99
______________________________________________________________________________
                         Lake Okeechobee Net Inflow (LONIN)
                   Average Flow over the previous 14 days  |  Avg-Daily Flow
   18MAY08    Today =       18 MAY 2008      -NR-  MON     |      -NR-
   18MAY08  -1 Day  =       17 MAY 2008      -NR-  SUN     |      -NR-
   18MAY08  -2 Days =       16 MAY 2008      -NR-  SAT     |      -NR-
   18MAY08  -3 Days =       15 MAY 2008      -NR-  FRI     |      -NR-
   18MAY08  -4 Days =       14 MAY 2008      -NR-  THU     |      -NR-
   18MAY08  -5 Days =       13 MAY 2008      -NR-  WED     |      -NR-
   18MAY08  -6 Days =       12 MAY 2008      -NR-  TUE     |      -NR-
   18MAY08  -7 Days =       11 MAY 2008      -NR-  MON     |      -NR-
   18MAY08  -8 Days =       10 MAY 2008      -NR-  SUN     |      -NR-
   18MAY08  -9 Days =       09 MAY 2008      -NR-  SAT     |      -NR-
   18MAY08 -10 Days =       08 MAY 2008      -NR-  FRI     |      -NR-
   18MAY08 -11 Days =       07 MAY 2008      -NR-  THU     |      -NR-
   18MAY08 -12 Days =       06 MAY 2008      -NR-  WED     |      -NR-
   18MAY08 -13 Days =       05 MAY 2008      -NR-  TUE     |      -NR-
______________________________________________________________________________
______________________________________________________________________________
                                 S65-E
                       Average Flow over previous 14 days  |  Avg-Daily Flow
   18MAY08     Today=       18 MAY 2008       662  MON     |       500
   18MAY08  -1 Day  =       17 MAY 2008       672  SUN     |       248
   18MAY08  -2 Days =       16 MAY 2008       700  SAT     |       464
   18MAY08  -3 Days =       15 MAY 2008       712  FRI     |       686
   18MAY08  -4 Days =       14 MAY 2008       724  THU     |       830
   18MAY08  -5 Days =       13 MAY 2008       764  WED     |       223
   18MAY08  -6 Days =       12 MAY 2008       805  TUE     |       639
   18MAY08  -7 Days =       11 MAY 2008       810  MON     |      1196
   18MAY08  -8 Days =       10 MAY 2008       795  SUN     |       557
   18MAY08  -9 Days =       09 MAY 2008       826  SAT     |       677
   18MAY08 -10 Days =       08 MAY 2008       862  FRI     |       944
   18MAY08 -11 Days =       07 MAY 2008       882  THU     |       838
   18MAY08 -12 Days =       06 MAY 2008       929  WED     |       693
   18MAY08 -13 Days =       05 MAY 2008       984  TUE     |       767
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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)
18 MAY 2008      7       167       152        239        -40           1
17 MAY 2008    204       421       158        275        -68           0
16 MAY 2008    576       912       157        271        506         153
15 MAY 2008    730      1214       158        275        346         125
14 MAY 2008    536       325       156        265        223          46
13 MAY 2008   -549      -707        99        134        -53           1
12 MAY 2008      0         1         0          9         45           2
11 MAY 2008    497       756         0         89        -39           0
10 MAY 2008    572       986       156        288        -40           0
09 MAY 2008    637      1200       134        267         52          28
08 MAY 2008    585      1103       136        277        385          73
07 MAY 2008    489       921       139       -NR-         56          34
06 MAY 2008    454       873         0          8        157          50
05 MAY 2008    383       723         0         91        207           2
 
             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)
18 MAY 2008      3      -NR-       -NR-       873        -NR-          5
17 MAY 2008      4      -NR-       -NR-       873        -NR-         -0
16 MAY 2008      1      -NR-       -NR-       873        -NR-         -4
15 MAY 2008      3      -NR-       -NR-       873        -NR-        -16
14 MAY 2008      3      -NR-       -NR-       577        -NR-          9
13 MAY 2008      2      -NR-       -NR-       619        -NR-         60
12 MAY 2008      2      -NR-       -NR-       627        -NR-         60
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
***  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 19MAY2008 @ 14:15  ** Preliminary Data - Subject to Revision **