oke U. S. Army Corps of Engineers, Jacksonville District Lake Okeechobee and Vicinity Report ** Preliminary Data - Subject to Revision ** Data Ending 2400 hours 01 FEB 2023 _____________________________________________________________________________ Okeechobee Lake Regulation Elevation Last Year 2YRS Ago (ft-NGVD) (ft-NGVD) (ft-NGVD) *Okeechobee Lake Elevation 16.01 14.91 15.51 (Official Elv) Bottom of High Lake Mngmt= 17.25 Top of Water Short Mngmt= 11.99 Currently in Operational Management Band Simulated Average LORS2008 [1965-2000] 13.51 Difference from Average LORS2008 2.51 01FEB (1965-2007) Period of Record Average 14.65 Difference from POR Average 1.36 Today Lake Okeechobee elevation is determined from the 4 Int & 4 Edge stations ++Navigation Depth (Based on 2007 Channel Condition Survey) Route 1 ÷ -NR-' ++Navigation Depth (Based on 2008 Channel Condition Survey) Route 2 ÷ -NR-' Bridge Clearance = -NR-' ______________________________________________________________________________ 4 Interior and 4 Edge Okeechobee Lake Average (Avg-Daily values): L001 L005 L006 LZ40 S4 S352 S308 S133 16.05 16.01 15.97 16.03 15.97 16.08 15.92 15.94 *Combination Okeechobee Avg-Daily Lake Average = 16.01 (*See Note) ______________________________________________________________________________ Okeechobee Inflows (cfs): S65E 1382 S65EX1 0 Fisheating Cr 14 S154 0 S191 0 S135 Pumps 0 S84 0 S133 Pumps 0 S2 Pumps 0 S84X 0 S127 Pumps 0 S3 Pumps 0 S71 0 S129 Pumps 0 S4 Pumps 0 S72 0 S131 Pumps 27 C5 0 Total Inflows: 1423 Okeechobee Outflows (cfs): S135 Culverts -NR- S354 200 S77 2192 S127 Culverts 0 S351 1030 S308 532 S129 Culverts 0 S352 322 S131 Culverts 0 L8 Canal Pt 414 Total Outflows: 4689 ****S77 structure flow is being used to compute Total Outflow. ****S308 structure flow is being used to compute Total Outflow. Okeechobee Pan Evaporation (inches): S77 0.18 S308 0.16 Average Pan Evap x 0.75 Pan Coefficient = 0.13" = 0.01' Lake Average Precipitation using NEXRAD: = -NR-" = -NR-' Evaporation - Precipitation: = -NR-" = -NR-' Evaporation - Precipitation using Lake Area of 730 square miles is equal to -NR- Lake Okeechobee (Change in Storage) Flow is -2269 cfs or -4500 AC-FT ______________________________________________________________________________ ______________________________________________________________________________ Headwater Tailwater ----------- Gate Positions ------------ Elevation Elevation Disch #1 #2 #3 #4 #5 #6 #7 #8 (ft-msl) (ft-msl) (cfs) (ft) (ft) (ft) (ft) (ft) (ft) (ft) (ft) (I) see note at bottom North East Shore S133 Pumps: ______ -NR- 0 0 0 0 0 0 (cfs) S193: ______ S191: ______ -NR- 0 -NR- -NR- -NR- S135 Pumps: ______ -NR- 0 0 0 0 0 (cfs) S135 Culverts: -NR- -NR- -NR- North West Shore S65E: 21.09 15.71 1382 1.1 0.6 0.5 1.1 0.5 0.4 S65EX1: 21.09 15.71 0 S127 Pumps: 13.72 15.92 0 0 0 0 0 0 (cfs) S127 Culvert: 0 0.0 S129 Pumps: ______ -NR- 0 0 0 0 (cfs) S129 Culvert: 0 -NR- S131 Pumps: 12.96 15.95 27 30 0 (cfs) S131 Culvert: 0 Fisheating Creek nr Palmdale 28.67 14 nr Lakeport ______ C5: ______ -NR- 0 -NR- -NR- -NR- South Shore S4 Pumps: ______ -NR- 0 0 0 0 (cfs) S169: ______ -NR- -NR- -NR- -NR- -NR- S310: 15.90 0 S3 Pumps: 10.60 15.93 0 0 0 0 (cfs) S354: 15.93 10.60 200 0.2 0.4 S2 Pumps: 10.61 15.97 0 0 0 0 0 (cfs) S351: 15.97 10.61 1030 1.0 1.0 1.1 S352: 16.06 10.77 322 0.0 1.1 C10A: -NR- -NR- -NR- -NR- -NR- -NR- -NR- L8 Canal PT 15.02 414 _________________________________________________________________________ S351 and S352 Temporary Pumps/S354 Spillway S351: 10.61 15.97 1030 -NR--NR--NR--NR--NR--NR- S352: 10.77 16.06 322 -NR--NR--NR--NR- S354: 10.60 15.93 200 -NR--NR--NR--NR- _________________________________________________________________________ Caloosahatchee River (S77, S78, S79) S47B: ______ -NR- -NR- -NR- S47D: ______ -NR- 0 -NR- S77: Spillway and Sector Preferred Flow: 15.73 10.63 2184 3.0 3.0 3.0 0.0 Flow Due to Lockages+: 8 S78: Spillway and Sector Flow: 10.56 3.04 2115 2.0 2.5 2.5 1.0 Flow Due to Lockages+: 14 S79: Spillway and Sector Flow: 3.15 2.04 2572 0.0 0.0 2.0 2.0 2.6 2.0 2.0 0.0 Flow Due to Lockages+: 5 Percent of flow from S77 85% Chloride (ppm) 0 St. Lucie Canal (S308, S80) S308: Spillway and Sector Preferred Flow: 15.98 13.67 528 0.0 0.0 0.0 0.0 Flow Due to Lockages+: 4 S153: ______ -NR- 0 -NR- -NR- S80: Spillway and Sector Flow: 13.98 0.08 403 0.0 0.0 0.0 0.0 0.0 0.0 0.0 Flow Due to Lockages+: 14 Percent of flow from S308 131% Steele Point Top Salinity (mg/ml) -N Steele Point Bottom Salinity (mg/ml) -N Speedy Point Top Salinity (mg/ml) -N Speedy Point Bottom Salinity (mg/ml) -N + Flow Due to lockages is computed utilizing average daily headwater and tailwater along with total number of lockages for the day to calculate a volume which is then converted to an average discharge in cfs. ++ Preferred flow is determined from either the spillway discharge or the below flow meter daily ______________________________________________________________________________ ----- Wind ---- Daily Precipitation Totals 1-Day 3-Day 7-Day Direction Speed (inches) (inches) (inches) (Degų) (mph) S133 Pump Station: -NR- 0.00 0.00 S193: -NR- 0.00 0.00 -NR- -NR- Okeechobee Field Station: -NR- 0.00 0.00 S135 Pump Station: -NR- 0.00 0.00 S127 Pump Station: -NR- 0.00 0.00 S129 Pump Station: -NR- 0.00 0.00 S131 Pump Station: -NR- 0.00 0.00 S77: -NR- 0.00 0.00 291 2 S78: -NR- 0.00 0.00 245 2 S79: -NR- 0.00 0.00 2 1 S4 Pump Station: -NR- 0.00 0.00 Clewiston Field Station: -NR- 0.00 0.00 S3 Pump Station: -NR- 0.00 0.00 S2 Pump Station: -NR- 0.00 0.00 S308: -NR- 0.00 0.00 132 8 S80: -NR- 0.00 0.00 197 1 Okeechobee Average -NR- 0.00 0.00 (Sites S78, S79 and S80 not included) ----------------------------------------------------------------- Oke Nexrad Basin Avg -NR- 0.00 0.00 ----------------------------------------------------------------- ______________________________________________________________________________ Okeechobee Lake Elevations 01 FEB 2023 16.01 Difference from 01FEB23 01FEB23 -1 Day = 31 JAN 2023 16.02 0.01 01FEB23 -2 Days = 30 JAN 2023 16.04 0.03 01FEB23 -3 Days = 29 JAN 2023 16.04 0.03 01FEB23 -4 Days = 28 JAN 2023 16.05 0.04 01FEB23 -5 Days = 27 JAN 2023 16.06 0.05 01FEB23 -6 Days = 26 JAN 2023 16.11 0.10 01FEB23 -7 Days = 25 JAN 2023 16.12 0.11 01FEB23 -30 Days = 02 JAN 2023 16.35 0.34 01FEB23 -1 Year = 01 FEB 2022 14.91 -1.10 01FEB23 -2 Year = 01 FEB 2021 15.51 -0.50 ______________________________________________________________________________ Long Term Mean 30day Avearge ET for Lake Alfred (Inches) = -NR- ______________________________________________________________________________ Lake Okeechobee Net Inflow (LONIN) Average Flow over the previous 14 days | Avg-Daily Flow 01FEB23 Today = 01 FEB 2023 567 THU | 2411 01FEB23 -1 Day = 31 JAN 2023 624 WED | -596 01FEB23 -2 Days = 30 JAN 2023 718 TUE | 497 01FEB23 -3 Days = 29 JAN 2023 575 MON | 172 01FEB23 -4 Days = 28 JAN 2023 -330 SUN | -1254 01FEB23 -5 Days = 27 JAN 2023 -1263 SAT | -5607 01FEB23 -6 Days = 26 JAN 2023 -428 FRI | 5761 01FEB23 -7 Days = 25 JAN 2023 -777 THU | -4077 01FEB23 -8 Days = 24 JAN 2023 -671 WED | 465 01FEB23 -9 Days = 23 JAN 2023 -635 TUE | 9189 01FEB23 -10 Days = 22 JAN 2023 -1179 MON | -363 01FEB23 -11 Days = 21 JAN 2023 -1043 SUN | 4512 01FEB23 -12 Days = 20 JAN 2023 -1602 SAT | 543 01FEB23 -13 Days = 19 JAN 2023 -1873 FRI | -3710 ______________________________________________________________________________ ______________________________________________________________________________ S65E Average Flow over previous 14 days | Avg-Daily Flow 01FEB23 Today= 01 FEB 2023 1532 THU | 1520 01FEB23 -1 Day = 31 JAN 2023 1526 WED | 1392 01FEB23 -2 Days = 30 JAN 2023 1533 TUE | 1751 01FEB23 -3 Days = 29 JAN 2023 1514 MON | 1606 01FEB23 -4 Days = 28 JAN 2023 1509 SUN | 1525 01FEB23 -5 Days = 27 JAN 2023 1515 SAT | 1540 01FEB23 -6 Days = 26 JAN 2023 1512 FRI | 1570 01FEB23 -7 Days = 25 JAN 2023 1530 THU | 1629 01FEB23 -8 Days = 24 JAN 2023 1505 WED | 1510 01FEB23 -9 Days = 23 JAN 2023 1526 TUE | 1520 01FEB23 -10 Days = 22 JAN 2023 1538 MON | 1492 01FEB23 -11 Days = 21 JAN 2023 1543 SUN | 1472 01FEB23 -12 Days = 20 JAN 2023 1551 SAT | 1481 01FEB23 -13 Days = 19 JAN 2023 1558 FRI | 1436 ______________________________________________________________________________ ______________________________________________________________________________ S65EX1 Average Flow over previous 14 days | Avg-Daily Flow 01FEB23 Today= 01 FEB 2023 0 THU | 0 01FEB23 -1 Day = 31 JAN 2023 0 WED | 0 01FEB23 -2 Days = 30 JAN 2023 0 TUE | 0 01FEB23 -3 Days = 29 JAN 2023 0 MON | 0 01FEB23 -4 Days = 28 JAN 2023 0 SUN | 0 01FEB23 -5 Days = 27 JAN 2023 0 SAT | 0 01FEB23 -6 Days = 26 JAN 2023 0 FRI | 0 01FEB23 -7 Days = 25 JAN 2023 0 THU | 0 01FEB23 -8 Days = 24 JAN 2023 0 WED | 0 01FEB23 -9 Days = 23 JAN 2023 0 TUE | 0 01FEB23 -10 Days = 22 JAN 2023 0 MON | 0 01FEB23 -11 Days = 21 JAN 2023 0 SUN | 0 01FEB23 -12 Days = 20 JAN 2023 0 SAT | 0 01FEB23 -13 Days = 19 JAN 2023 0 FRI | 0 ______________________________________________________________________________ Lake Okeechobee Outlets Last 14 Days S-77 Below S-77 S-78 S-79 Discharge Discharge Discharge Discharge (ALL DAY) (ALL-DAY) (ALL DAY) (ALL DAY) DATE (AC-FT) (AC-FT) (AC-FT) (AC-FT) 01 FEB 2023 4380 4799 4238 5127 31 JAN 2023 2657 -NR- 2765 3922 30 JAN 2023 1348 2072 2085 3157 29 JAN 2023 1891 2526 2088 2891 28 JAN 2023 2546 3125 2544 3353 27 JAN 2023 3300 3642 3485 3859 26 JAN 2023 3360 3698 3193 5554 25 JAN 2023 3336 2989 3879 5066 24 JAN 2023 2826 2337 3207 4438 23 JAN 2023 966 1950 1994 3625 22 JAN 2023 1377 2199 1841 2469 21 JAN 2023 1658 2325 1739 2574 20 JAN 2023 1853 2560 1922 2885 19 JAN 2023 3095 3967 2770 4174 S-310 S-351 S-352 S-354 L8 Canal Pt Discharge Discharge Discharge Discharge Discharge (ALL DAY) (ALL DAY) (ALL DAY) (ALL DAY) (ALL DAY) DATE (AC-FT) (AC-FT) (AC-FT) (AC-FT) (AC-FT) 01 FEB 2023 0 2042 638 397 821 31 JAN 2023 -NR- 1748 598 786 -NR- 30 JAN 2023 9 1223 415 436 1217 29 JAN 2023 16 1108 186 129 725 28 JAN 2023 9 1302 320 288 762 27 JAN 2023 8 1572 84 240 623 26 JAN 2023 10 1696 275 0 577 25 JAN 2023 17 616 0 0 581 24 JAN 2023 15 884 363 0 423 23 JAN 2023 8 1482 786 210 247 22 JAN 2023 5 1061 19 196 440 21 JAN 2023 -2 1684 541 130 459 20 JAN 2023 16 1942 1014 395 361 19 JAN 2023 12 1503 909 248 364 S-308 Below S-308 S-80 Discharge Discharge Discharge (ALL DAY) (ALL-DAY) (ALL-DAY) DATE (AC-FT) (AC-FT) (AC-FT) 01 FEB 2023 1020 -NR- 748 31 JAN 2023 -NR- -NR- 956 30 JAN 2023 2491 -NR- 858 29 JAN 2023 828 -NR- 865 28 JAN 2023 1258 -NR- 741 27 JAN 2023 1108 -NR- 615 26 JAN 2023 1027 -NR- 860 25 JAN 2023 855 -NR- 1091 24 JAN 2023 983 -NR- 763 23 JAN 2023 1022 -NR- 385 22 JAN 2023 692 -NR- 1095 21 JAN 2023 14 -NR- 45 20 JAN 2023 14 -NR- 45 19 JAN 2023 7 -NR- 45 *** NOTE: Discharge (ALL DAY) is computed using Spillway, Sector Gate and Lockages Discharges from 0015 hrs to 2400 hrs. ______________________________________________________________________________ (I) - Flows preceeded by "I" signify an instantaneous flow computed from the single value reported for the day ______________________________________________________________________________ * On 11 May 1999, Lake Okeechobee Elevation was switched from Instantaneous 2400 value to an average-daily lake average. On 14 Mar 2001, due to the isolation of various gages within the standard 10 stations, the average of the interior 4 station gages was used as the Lake Okeechobee Elevation. On 05 November 2010, Lake Okeechobee Elevation was switched to a 9 gage mix of interior and edge gages to obtain a more reliable representation of the lake level. On 09 May 2011, Lake Okeechobee Elevation was switched to a 8 gage mix of interior and edge gages to obtain a more reliable representation of the lake level due to isolation of S135 from low lake levels. Today Lake Okechobee elevation is determined from the 4 Int & 4 Edge stations ++ For more information see the Jacksonville District Navigation website at http://www.saj.usace.army.mil/ $ For information regarding Lake Okeechobee Service Area water restrictions please refer to www.sfwmd.gov ______________________________________________________________________________ Report Generated 02FEB2023 @ 23:15 ** Preliminary Data - Subject to Revision **