lonin
               U. S. Army Corps of Engineers, Jacksonville District
                     Lake Okeechobee Net Inflow Report(LONIN)
                   ** Preliminary Data - Subject to Revision **
 
Data Ending 2400 hours   21 AUG 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(*):  15096  cfs
 7 Day Average LONIN(*):  17682 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)  |
21 AUG 2019|  10588  | 10588   |     0   |     0  |     0 |     0 |     0 |  -214  |
20 AUG 2019|  16940  | 16940   |     0   |     0  |     0 |     0 |     0 |  -250  |
19 AUG 2019|  14671  | 14671   |     0   |  -635  |     0 |     0 |     0 |  -300  |
18 AUG 2019|  17696  | 17696   |     0   |  -106  |     0 |     0 |     0 |  -353  |
17 AUG 2019|  15327  | 15327   |     0   |  -327  |     0 |     0 |     0 |  -375  |
16 AUG 2019|  29242  | 29242   |     0   |  -610  |     0 |     0 |     0 |  -339  |
15 AUG 2019|  19310  | 19310   |     0   |  -673  |     0 |     0 |     0 |  -226  |
14 AUG 2019|  15730  | 15730   |     0   |  -423  |     0 |     0 |     0 |  -224  |
13 AUG 2019|  21528  | 21528   |     0   |     0  |     0 |     0 |     0 |  -183  |
12 AUG 2019|  15327  | 15327   |     0   |  -552  |     0 |     0 |     0 |  -102  |
11 AUG 2019|  11798  | 11798   |     0   |     0  |     0 |     0 |     0 |  -102  |
10 AUG 2019|   7865  |  7865   |     0   |  -424  |     0 |     0 |     0 |   -98  |
09 AUG 2019|   5748  |  5748   |     0   |     0  |     0 |     0 |     0 |  -117  |
08 AUG 2019|   9579  |  9579   |     0   |  -386  |     0 |     0 |     0 |  -146  |
____________________________________________________________________________________
 
 
Preferred Discharges
__________________________________________________________
           | S-77    |Below S-77 |    S-77 Preferred*     |
   DATE    | (CFS)   |(CFS)      |        (CFS)           |
21 AUG 2019|      0  |   497     |     0   Structure Flow |
20 AUG 2019|      0  |   496     |     0   Structure Flow |
19 AUG 2019|      0  |   533     |     0   Structure Flow |
18 AUG 2019|      0  |   468     |     0   Structure Flow |
17 AUG 2019|      0  |   376     |     0   Structure Flow |
16 AUG 2019|      0  |   421     |     0   Structure Flow |
15 AUG 2019|      0  |   321     |     0   Structure Flow |
14 AUG 2019|      0  |   287     |     0   Structure Flow |
13 AUG 2019|      0  |   271     |     0   Structure Flow |
12 AUG 2019|      0  |   128     |     0   Structure Flow |
11 AUG 2019|      0  |   135     |     0   Structure Flow |
10 AUG 2019|      0  |    83     |     0   Structure Flow |
09 AUG 2019|      0  |   142     |     0   Structure Flow |
08 AUG 2019|      0  |   130     |     0   Structure Flow |
___________________________________________________________
 
__________________________________________________________
           | S-308   |Below S-308|    S-308 Preferred*    |
   DATE    | (CFS)   |(CFS)      |        (CFS)           |
21 AUG 2019|      0  |    23     |     0   Structure Flow |
20 AUG 2019|      0  |    83     |     0   Structure Flow |
19 AUG 2019|  -2563  |  -635     |  -635   Below Flow     |
18 AUG 2019|   -106  |   -11     |  -106   Structure Flow |
17 AUG 2019|   -472  |  -327     |  -327   Below Flow     |
16 AUG 2019|   -610  |  -477     |  -610   Structure Flow |
15 AUG 2019|   -673  |  -NR-     |  -673   Structure Flow |
14 AUG 2019|   -651  |  -423     |  -423   Below Flow     |
13 AUG 2019|      0  |  -112     |     0   Structure Flow |
12 AUG 2019|   -875  |  -552     |  -552   Below Flow     |
11 AUG 2019|      0  |   -59     |     0   Structure Flow |
10 AUG 2019|   -424  |  -395     |  -424   Structure Flow |
09 AUG 2019|      0  |  -159     |     0   Structure Flow |
08 AUG 2019|   -728  |  -386     |  -386   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 22AUG2019 @ 15:39  ** Preliminary Data - Subject to Revision **