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 FEB 2018
____________________________________________________________________________________
 
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(*):   -614  cfs
 7 Day Average LONIN(*):  -1826 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 FEB 2018|  -3612  | -6403   |   340   |   132  |  1037 |   792 |   255 |   235  |
21 FEB 2018|  -1518  | -4336   |   506   |     0  |   920 |   755 |   407 |   230  |
20 FEB 2018|    771  | -2168   |   583   |   430  |   882 |   654 |   167 |   224  |
19 FEB 2018|  -5610  | -8672   |   847   |     0  |  1109 |   556 |   332 |   219  |
18 FEB 2018|  -3244  | -6504   |  1244   |     0  |  1074 |   446 |   269 |   227  |
17 FEB 2018|   -928  | -4336   |  1533   |     0  |   797 |   556 |   294 |   228  |
16 FEB 2018|   1358  | -2168   |   690   |     0  |  1308 |   748 |   551 |   229  |
15 FEB 2018|   2858  |     0   |   352   |     0  |  1096 |   718 |   465 |   226  |
14 FEB 2018|   -860  | -4336   |   627   |     0  |  1441 |   729 |   451 |   229  |
13 FEB 2018|   -834  | -4336   |   563   |     0  |  1370 |   724 |   616 |   229  |
12 FEB 2018|    339  | -2168   |   442   |     0  |  1032 |   416 |   387 |   229  |
11 FEB 2018|    424  | -2168   |   795   |     0  |  1090 |   172 |   308 |   227  |
10 FEB 2018|  -2047  | -4336   |   535   |     0  |   957 |   229 |   337 |   232  |
09 FEB 2018|   4312  |  2168   |   297   |     0  |  1237 |   159 |   215 |   237  |
____________________________________________________________________________________
 
 
Preferred Discharges
__________________________________________________________
           | S-77    |Below S-77 |    S-77 Preferred*     |
   DATE    | (CFS)   |(CFS)      |        (CFS)           |
22 FEB 2018|    340  |   345     |   340   Structure Flow |
21 FEB 2018|    698  |   506     |   506   Below Flow     |
20 FEB 2018|    870  |   583     |   583   Below Flow     |
19 FEB 2018|    847  |   864     |   847   Structure Flow |
18 FEB 2018|   1244  |  1323     |  1244   Structure Flow |
17 FEB 2018|   1533  |  1383     |  1533   Structure Flow |
16 FEB 2018|   1497  |   690     |   690   Below Flow     |
15 FEB 2018|    352  |   421     |   352   Structure Flow |
14 FEB 2018|    627  |   971     |   627   Structure Flow |
13 FEB 2018|    563  |   671     |   563   Structure Flow |
12 FEB 2018|    442  |   481     |   442   Structure Flow |
11 FEB 2018|   1243  |   795     |   795   Below Flow     |
10 FEB 2018|   1248  |   535     |   535   Below Flow     |
09 FEB 2018|   1237  |   297     |   297   Below Flow     |
___________________________________________________________
 
__________________________________________________________
           | S-308   |Below S-308|    S-308 Preferred*    |
   DATE    | (CFS)   |(CFS)      |        (CFS)           |
22 FEB 2018|    132  |   273     |   132   Structure Flow |
21 FEB 2018|      0  |   150     |     0   Structure Flow |
20 FEB 2018|    904  |   430     |   430   Below Flow     |
19 FEB 2018|      0  |   119     |     0   Structure Flow |
18 FEB 2018|      0  |    95     |     0   Structure Flow |
17 FEB 2018|      0  |    -2     |     0   Structure Flow |
16 FEB 2018|      0  |   -41     |     0   Structure Flow |
15 FEB 2018|      0  |   -74     |     0   Structure Flow |
14 FEB 2018|      0  |    45     |     0   Structure Flow |
13 FEB 2018|      0  |     9     |     0   Structure Flow |
12 FEB 2018|      0  |    -4     |     0   Structure Flow |
11 FEB 2018|      0  |   -97     |     0   Structure Flow |
10 FEB 2018|      0  |    13     |     0   Structure Flow |
09 FEB 2018|      0  |   135     |     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 23FEB2018 @ 04:40  ** Preliminary Data - Subject to Revision **