lonin
               U. S. Army Corps of Engineers, Jacksonville District
                     Lake Okeechobee Net Inflow Report(LONIN)
                   ** Preliminary Data - Subject to Revision **
 
Data Ending 2400 hours   22 JAN 2020
____________________________________________________________________________________
 
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(*):  -1652  cfs
LORS Classification of LONIN: Dry
 7 Day Average LONIN(*):  -3974 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)  |
22 JAN 2020|  -5656  | -9579   |  1004   |    61  |   581 |   593 |  1672 |     5  |
21 JAN 2020| -12393  |-15478   |   963   |   137  |   651 |   400 |   858 |    79  |
20 JAN 2020|  -3326  | -5899   |   890   |     7  |   742 |   270 |   649 |    19  |
19 JAN 2020|    522  | -1966   |   750   |     1  |   728 |   164 |   802 |    38  |
18 JAN 2020|  -5380  | -8016   |   362   |   338  |   976 |   177 |   747 |    38  |
17 JAN 2020|    470  | -2118   |   246   |  1410  |   282 |   266 |   384 |   -20  |
16 JAN 2020|  -2058  | -4235   |   314   |   589  |   592 |   343 |   274 |    63  |
15 JAN 2020|     57  | -2118   |   670   |   666  |   168 |   277 |   381 |    11  |
14 JAN 2020|    166  | -2118   |  1176   |   644  |    78 |    83 |   303 |   -45  |
13 JAN 2020|   2903  |     0   |   859   |   698  |   391 |   382 |   573 |   -35  |
12 JAN 2020|   1334  |     0   |   640   |   339  |     0 |   326 |    28 |   -18  |
11 JAN 2020|   3464  |  2118   |   751   |   413  |     0 |   183 |     0 |   -36  |
10 JAN 2020|  -2583  | -4235   |   800   |   472  |     0 |   327 |     0 |    52  |
09 JAN 2020|   -649  | -2118   |   777   |    67  |     0 |   373 |   237 |    17  |
____________________________________________________________________________________
 
 
Preferred Discharges
__________________________________________________________
           | S-77    |Below S-77 |    S-77 Preferred*     |
   DATE    | (CFS)   |(CFS)      |        (CFS)           |
22 JAN 2020|   1004  |  1166     |  1004   Structure Flow |
21 JAN 2020|    963  |   908     |   963   Structure Flow |
20 JAN 2020|    890  |   888     |   890   Structure Flow |
19 JAN 2020|    750  |   817     |   750   Structure Flow |
18 JAN 2020|    362  |   475     |   362   Structure Flow |
17 JAN 2020|    246  |   533     |   246   Structure Flow |
16 JAN 2020|    314  |   429     |   314   Structure Flow |
15 JAN 2020|    670  |   709     |   670   Structure Flow |
14 JAN 2020|   1176  |  1222     |  1176   Structure Flow |
13 JAN 2020|    859  |   924     |   859   Structure Flow |
12 JAN 2020|    640  |   715     |   640   Structure Flow |
11 JAN 2020|    751  |   740     |   751   Structure Flow |
10 JAN 2020|    800  |   774     |   800   Structure Flow |
09 JAN 2020|    777  |   760     |   777   Structure Flow |
___________________________________________________________
 
__________________________________________________________
           | S-308   |Below S-308|    S-308 Preferred*    |
   DATE    | (CFS)   |(CFS)      |        (CFS)           |
22 JAN 2020|   -887  |    61     |    61   Below Flow     |
21 JAN 2020|    439  |   137     |   137   Below Flow     |
20 JAN 2020|    362  |     7     |     7   Below Flow     |
19 JAN 2020|   -484  |     1     |     1   Below Flow     |
18 JAN 2020|    338  |   268     |   338   Structure Flow |
17 JAN 2020|   1410  |   -90     |  1410   Structure Flow |
16 JAN 2020|    589  |  -120     |   589   Structure Flow |
15 JAN 2020|    666  |  -142     |   666   Structure Flow |
14 JAN 2020|    644  |   -77     |   644   Structure Flow |
13 JAN 2020|    698  |  -NR-     |   698   Structure Flow |
12 JAN 2020|    339  |  -NR-     |   339   Structure Flow |
11 JAN 2020|    413  |  -NR-     |   413   Structure Flow |
10 JAN 2020|    472  |  -NR-     |   472   Structure Flow |
09 JAN 2020|    946  |    67     |    67   Below 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 23JAN2020 @ 08:30  ** Preliminary Data - Subject to Revision **