lonin
               U. S. Army Corps of Engineers, Jacksonville District
                     Lake Okeechobee Net Inflow Report(LONIN)
                   ** Preliminary Data - Subject to Revision **
 
Data Ending 2400 hours   01 FEB 2023
____________________________________________________________________________________
 
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(*):    567  cfs
LORS Classification of LONIN: Normal
 7 Day Average LONIN(*):    198 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)  |
01 FEB 2023|   2411  | -2269   |  2184   |   528  |  1030 |   322 |   200 |   416  |
31 JAN 2023|   -596  | -4538   |  1323   |   654  |   881 |   302 |   396 |   385  |
30 JAN 2023|    497  |     0   |   675   |   431  |   617 |   209 |   220 |   614  |
29 JAN 2023|    172  | -2269   |   946   |   414  |   559 |    94 |    65 |   363  |
28 JAN 2023|  -1254  | -2269   |  1295   |   642  |   657 |   161 |   145 |   383  |
27 JAN 2023|  -5607  |-11344   |  1660   |   524  |   793 |    42 |   121 |   328  |
26 JAN 2023|   5761  | -2269   |  1692   |   518  |   855 |   139 |     0 |   289  |
25 JAN 2023|  -4077  | -2269   |  1669   |   456  |   311 |     0 |     0 |   293  |
24 JAN 2023|    465  |     0   |  1369   |   523  |   446 |   183 |     0 |   212  |
23 JAN 2023|   9189  |  9075   |   484   |   528  |   747 |   396 |   106 |   121  |
22 JAN 2023|   -363  | -2269   |   691   |   348  |   535 |    10 |    99 |   223  |
21 JAN 2023|   4512  |  2269   |   826   |     0  |   849 |   273 |    65 |   230  |
20 JAN 2023|    543  | -2269   |   940   |     0  |   979 |   511 |   199 |   182  |
19 JAN 2023|  -3710  | -6806   |  1573   |     0  |   758 |   459 |   125 |   182  |
____________________________________________________________________________________
 
 
Preferred Discharges
__________________________________________________________
           | S-77    |Below S-77 |    S-77 Preferred*     |
   DATE    | (CFS)   |(CFS)      |        (CFS)           |
01 FEB 2023|   2184  |  2420     |  2184   Structure Flow |
31 JAN 2023|   1323  |  -NR-     |  1323   Structure Flow |
30 JAN 2023|    675  |  1045     |   675   Structure Flow |
29 JAN 2023|    946  |  1274     |   946   Structure Flow |
28 JAN 2023|   1295  |  1576     |  1295   Structure Flow |
27 JAN 2023|   1660  |  1837     |  1660   Structure Flow |
26 JAN 2023|   1692  |  1865     |  1692   Structure Flow |
25 JAN 2023|   1669  |  1507     |  1669   Structure Flow |
24 JAN 2023|   1369  |  1179     |  1369   Structure Flow |
23 JAN 2023|    484  |   983     |   484   Structure Flow |
22 JAN 2023|    691  |  1109     |   691   Structure Flow |
21 JAN 2023|    826  |  1172     |   826   Structure Flow |
20 JAN 2023|    940  |  1291     |   940   Structure Flow |
19 JAN 2023|   1573  |  2000     |  1573   Structure Flow |
___________________________________________________________
 
__________________________________________________________
           | S-308   |Below S-308|    S-308 Preferred*    |
   DATE    | (CFS)   |(CFS)      |        (CFS)           |
01 FEB 2023|    528  |   497     |   528   Structure Flow |
31 JAN 2023|    654  |  -NR-     |   654   Structure Flow |
30 JAN 2023|   1367  |   431     |   431   Below Flow     |
29 JAN 2023|    414  |   539     |   414   Structure Flow |
28 JAN 2023|    642  |   743     |   642   Structure Flow |
27 JAN 2023|    524  |   567     |   524   Structure Flow |
26 JAN 2023|    518  |  -NR-     |   518   Structure Flow |
25 JAN 2023|    456  |   482     |   456   Structure Flow |
24 JAN 2023|    523  |   609     |   523   Structure Flow |
23 JAN 2023|    528  |   679     |   528   Structure Flow |
22 JAN 2023|    348  |   387     |   348   Structure Flow |
21 JAN 2023|      0  |   -47     |     0   Structure Flow |
20 JAN 2023|      0  |   -64     |     0   Structure Flow |
19 JAN 2023|      0  |     2     |     0   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 02FEB2023 @ 21:37  ** Preliminary Data - Subject to Revision **