lonin
               U. S. Army Corps of Engineers, Jacksonville District
                     Lake Okeechobee Net Inflow Report(LONIN)
                   ** Preliminary Data - Subject to Revision **
 
Data Ending 2400 hours   17 FEB 2019
____________________________________________________________________________________
 
LONIN(*) = Change in Storage + Outflows
LONIN(*) = Change in Storage + S-77 + S-308 + S-351 + S-352 + S-354 + L8@Canal Point
 
14 Day Average LONIN(*):   3267  cfs
 7 Day Average LONIN(*):   4805 cfs
 
NOTE: Preferred discharges out of S-77 and S-308 are used in the LONIN calculation
 * Negative outflows are omitted from the LONIN calculation
____________________________________________________________________________________
           | LONIN   | STORAGE | S-77*   | S-308* | S-351*| S-352*| S-354*| L-8@CP*|
   DATE    | (CFS)   | (CFS)   | (CFS)   | (CFS)  | (CFS) | (CFS) | (CFS) | (CFS)  |
17 FEB 2019|   5926  |  3832   |   719   |   114  |    34 |     0 |   303 |   925  |
16 FEB 2019|   4868  |  1916   |  1331   |   162  |   158 |    62 |   322 |   917  |
15 FEB 2019|   8437  |  5899   |   526   |   170  |   505 |   416 |   381 |   540  |
14 FEB 2019|   -NR-  |  7865   |     0   |    15  |    64 |    58 |    85 |  -NR-  |
13 FEB 2019|   -NR-  |  5899   |    20   |   -52  |    94 |     6 |    55 |  -NR-  |
12 FEB 2019|   3507  |  1916   |   448   |    -0  |   472 |   151 |   407 |   112  |
11 FEB 2019|   1285  | -1916   |   772   |   203  |   747 |   372 |   538 |   567  |
10 FEB 2019|   3994  |     0   |  1605   |   133  |   910 |   433 |   555 |   359  |
09 FEB 2019|    164  | -3933   |  1512   |    66  |   872 |   444 |   455 |   747  |
08 FEB 2019|   1265  | -1966   |   750   |   183  |   667 |   396 |   494 |   740  |
07 FEB 2019|   4094  |  1966   |     0   |   115  |   593 |   396 |   562 |   463  |
06 FEB 2019|   1559  |     0   |     0   |   115  |   324 |   243 |   807 |    71  |
05 FEB 2019|   1514  |     0   |     0   |   125  |   343 |   338 |   653 |    56  |
04 FEB 2019|   2589  |  1966   |     0   |   -35  |     0 |   165 |   399 |    58  |
____________________________________________________________________________________
 
 
Preferred Discharges
__________________________________________________________
           | S-77    |Below S-77 |    S-77 Preferred*     |
   DATE    | (CFS)   |(CFS)      |        (CFS)           |
17 FEB 2019|    719  |   764     |   719   Structure Flow |
16 FEB 2019|   1331  |  1429     |  1331   Structure Flow |
15 FEB 2019|    526  |   627     |   526   Structure Flow |
14 FEB 2019|      0  |   169     |     0   Structure Flow |
13 FEB 2019|     20  |   109     |    20   Structure Flow |
12 FEB 2019|    648  |   448     |   448   Below Flow     |
11 FEB 2019|   1488  |   772     |   772   Below Flow     |
10 FEB 2019|   1605  |  1252     |  1605   Structure Flow |
09 FEB 2019|   1512  |  1691     |  1512   Structure Flow |
08 FEB 2019|    750  |   832     |   750   Structure Flow |
07 FEB 2019|      0  |    22     |     0   Structure Flow |
06 FEB 2019|      0  |   -31     |     0   Structure Flow |
05 FEB 2019|      0  |   279     |     0   Structure Flow |
04 FEB 2019|      0  |   350     |     0   Structure Flow |
___________________________________________________________
 
__________________________________________________________
           | S-308   |Below S-308|    S-308 Preferred*    |
   DATE    | (CFS)   |(CFS)      |        (CFS)           |
17 FEB 2019|    114  |   -22     |   114   Structure Flow |
16 FEB 2019|    162  |    72     |   162   Structure Flow |
15 FEB 2019|    170  |   143     |   170   Structure Flow |
14 FEB 2019|     15  |   -19     |    15   Structure Flow |
13 FEB 2019|    -52  |   -92     |   -52   Structure Flow |
12 FEB 2019|     -0  |   -42     |    -0   Structure Flow |
11 FEB 2019|    203  |   257     |   203   Structure Flow |
10 FEB 2019|    133  |   256     |   133   Structure Flow |
09 FEB 2019|     66  |    92     |    66   Structure Flow |
08 FEB 2019|    183  |   207     |   183   Structure Flow |
07 FEB 2019|    115  |   189     |   115   Structure Flow |
06 FEB 2019|    115  |   148     |   115   Structure Flow |
05 FEB 2019|    125  |    46     |   125   Structure Flow |
04 FEB 2019|    -35  |   -66     |   -35   Structure Flow |
___________________________________________________________
 
Preferred flows out of S-77 and S-308 are determined by using the following criteria:
  - At low flows (<300 cfs), the strcuture flow is used.
  - If all gates are closed, the flow is zero.
  - If the structure flow is greater then the below gage by more than 30%, then the
     downstream gage will be the preferred flow. This scenatio is likely due to
     vegetation clogging which causes the structure flow to be falsely high.
  - If there is positive head accross the structure, negative flows will not be used
  - USACE can force the preferred flows to be one gage or the other, overwriting the above rules
     (exception is if the gates are closed, then flow will be zero)
 
POC for questions about this report: Savannah Lacy, 904-627-0501, Savannah.H.Lacy@usace.army.mil
 
Report Generated 18FEB2019 @ 21:15  ** Preliminary Data - Subject to Revision **