U. S. Army Corps of Engineers, Jacksonville District Lake Okeechobee and Vicinity Report Data Ending 2400 hours 12 OCT 2008 _____________________________________________________________________________ Okeechobee Lake Regulation Elevation Last Year 2YRS Ago (ft-NGVD) (ft-NGVD) (ft-NGVD) *Okeechobee Lake Elevation 15.00 10.10 13.14 (Official Elv) Bottom of High Lake Mngmt= 16.93 Top of Water Short Mngmt= 12.93 Currently in Operational Management Band 12OCT (1965-2007) Period of Record Average 15.04 Difference from POR Average -0.04 Simulated Average LORS2008 [1965-2000] 13.96 Difference from Average LORS2008 1.04 Today Lake Okechobee elevation is determined from the 4 interior stations ++Navigation Depths (Based on 2001 Channel Condition Survey) Route 1 ÷ 8.94' Route 2 ÷ 6.34' Bridge Clearance = -NR-' ______________________________________________________________________________ 4 Interior and 4 Edge Okeechobee Lake Average (Avg-Daily values): L001 L005 L006 LZ40 S4 S352 S308 S133 14.84 15.08 14.99 15.09 15.15 15.15 14.93 15.01 *Combination Okeechobee Avg-Daily Lake Average = 15.03 (*See Note) Interior Okeechobee Lake Average (Avg-Daily values): L001 L005 L006 LZ40 14.84 15.08 14.99 15.09 *Interior Okeechobee Avg-Daily Lake Average = 15.00 (*See Note) Okeechobee Lake Average (Avg-Daily values): (BAD) (BAD) C5 S4 S3 S2 S352 S308 S135 S133 S127 S129 15.22 15.15 15.15 15.04 15.15 14.93 14.82 15.01 14.97 15.06 *Edge Okeechobee Avg-Daily Lake Average = 15.05 (*See Note) ______________________________________________________________________________ Okeechobee Inflows (cfs): S65E 797 S191 263 Fisheating Cr 78 S154 0 S133 Pumps -NR- S135 Pumps 0 S84 171 S127 Pumps 0 S2 Pumps 0 S71 1729 S129 Pumps 104 S3 Pumps 0 S72 519 S131 Pumps 0 S4 Pumps 0 Total Inflows: 3661 Okeechobee Outflows (cfs): S135 Culverts 0 S354 -NR- S77 -NR- S127 Culverts -NR- S351 -NR- S308 -NR- S129 Culverts 0 S352 0 S131 Culverts L8 Canal Pt -74 C5 -NR- Total Outflows: No Report Due To Missing S77 or S308 Discharge Data Okeechobee Pan Evaporation (inches): S77 -NR- S308 1.64 Average Pan Evap x 0.75 Pan Coefficient = -NR-" = -NR-' Lake Average Precipitation using NEXRAD: = 0.02" = 0.00' Evaporation - Precipitation: = -NR-" = -NR-' Evaporation - Precipitation using Lake Area of 730 square miles is equal to -NR- Lake Okeechobee (Change in Storage) Flow is 0 cfs or 0 AC-FT ______________________________________________________________________________ ______________________________________________________________________________ Note: Headwater, tailwater, and stage values below are instantaneous values unless otherwise specified. 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: 13.80 14.95 -NR- 0 0 0 0 -NR- (cfs) S193: ______ S191: 19.67 14.86 263 0.0 0.0 0.0 S135 Pumps: 13.74 14.80 0 0 0 0 0 (cfs) S135 Culverts: 0 0.0 0.0 North West Shore S65E: 20.93 14.81 797 0.4 0.3 0.4 0.4 0.4 0.4 S127 Pumps: 13.79 14.94 0 0 0 0 0 0 (cfs) S127 Culvert: -NR- -NR- S129 Pumps: 12.95 15.06 104 31 31 43 (cfs) S129 Culvert: 0 -NR- S131 Pumps: 13.40 15.35 0 0 0 (cfs) S131 Culvert: Fisheating Creek nr Palmdale 30.48 78 nr Lakeport ______ C5: ______ 15.22 -NR- -NR- -NR- -NR- South Shore S4 Pumps: 11.26 15.22 0 0 0 0 (cfs) S169: 15.22 11.47 -NR- 0.0 0.0 0.0 S310: ______ -NR- S3 Pumps: ______ -NR- 0 0 0 0 (cfs) S354: -NR- ______ -NR- -NR- -NR- S2 Pumps: 10.23 15.10 0 0 0 0 0 (cfs) S351: 15.10 10.23 -NR- -NR- -NR- -NR- S352: 15.10 10.30 0 0.0 0.0 C10A: -NR- 14.83 -NR- -NR- 7.0 -NR- -NR- L8 Canal PT 14.93 -74 _________________________________________________________________________ Temporary Pumps S351: 10.23 15.10 -NR- -NR--NR--NR--NR--NR--NR- S352: 10.30 15.10 0 -NR--NR--NR--NR- S354: ______ -NR- -NR- -NR--NR--NR--NR- _________________________________________________________________________ Caloosahatchee River (S77, S78, S79) S47B: 15.24 11.55 0.0 0.0 S47D: 11.58 11.01 15 0.0 S77: Spillway and Sector Flow: -NR- -NR- -NR- -NR- -NR- -NR- -NR- Flow Due to Lockages+: -NR- S77 Below USGS Flow Gage 505 (TESTING) S78: Spillway and Sector Flow: -NR- -NR- -NR- 0.5 0.5 0.5 0.5 Flow Due to Lockages+: -NR- S79: Spillway and Sector Flow: -NR- -NR- -NR- -NR- -NR- -NR- -NR- -NR- -NR- -NR- -NR- Flow Due to Lockages+: -NR- Percent of flow from S77 -NR-% Chloride (ppm) 45 St. Lucie Canal (S308, S80) S308: Spillway and Sector Flow: -NR- -NR- -NR- -NR- -NR- -NR- -NR- Flow Due to Lockages+: -NR- S308 Below USGS Flow Gage 232 S153: 18.99 14.32 55 0.0 0.5 S80: Spillway and Sector Flow: -NR- -NR- -NR- -NR- -NR- -NR- -NR- -NR- -NR- -NR- Flow Due to Lockages+: -NR- Percent of flow from S308 -NR-% Steele Point Top Salinity (mg/ml) 26 Steele Point Bottom Salinity (mg/ml) 24 Speedy Point Top Salinity (mg/ml) 13 Speedy Point Bottom Salinity (mg/ml) 8 + 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. ______________________________________________________________________________ ----- Wind ---- Daily Precipitation Totals 1-Day 3-Day 7-Day Direction Speed (inches) (inches) (inches) (Degų) (mph) S133 Pump Station: -NR- 0.00 0.45 S193: -NR- 0.00 0.00 -NR- -NR- Okeechobee Field Station: -NR- 0.00 0.76 S135 Pump Station: -NR- 0.00 1.81 S127 Pump Station: -NR- 0.00 0.03 S129 Pump Station: -NR- 0.00 0.00 S131 Pump Station: -NR- 0.00 0.20 S77: -NR- 0.52 0.52 -NR- -NR- S78: -NR- 8.15 8.23 -NR- -NR- S79: -NR- 0.00 0.55 -NR- -NR- S4 Pump Station: -NR- 0.00 0.00 Clewiston Field Station: -NR- 0.00 1.38 S3 Pump Station: -NR- 0.00 1.88 S2 Pump Station: -NR- 0.00 0.04 S308: -NR- 0.00 0.00 -NR- -NR- S80: -NR- 0.00 0.25 -NR- -NR- Okeechobee Average -NR- 0.04 0.54 (Sites S78, S79 and S80 not included) ______________________________________________________________________________ Okeechobee Lake Elevations 12 OCT 2008 15.00 Difference from 12OCT08 12OCT08 -1 Day = 11 OCT 2008 15.00 0.00 12OCT08 -2 Days = 10 OCT 2008 14.96 -0.04 12OCT08 -3 Days = 09 OCT 2008 14.96 -0.04 12OCT08 -4 Days = 08 OCT 2008 14.97 -0.03 12OCT08 -5 Days = 07 OCT 2008 14.96 -0.04 12OCT08 -6 Days = 06 OCT 2008 14.96 -0.04 12OCT08 -7 Days = 05 OCT 2008 14.97 -0.03 12OCT08 -30 Days = 12 SEP 2008 15.13 0.13 12OCT08 -1 Year = 12 OCT 2007 10.10 -4.90 12OCT08 -2 Year = 12 OCT 2006 13.14 -1.86 ______________________________________________________________________________ Long Term Mean 30day Avearge ET for Lake Alfred (Inches) = 3.72 ______________________________________________________________________________ Lake Okeechobee Net Inflow (LONIN) Average Flow over the previous 14 days | Avg-Daily Flow 12OCT08 Today = 12 OCT 2008 4861 MON | -NR- 12OCT08 -1 Day = 11 OCT 2008 3907 SUN | -NR- 12OCT08 -2 Days = 10 OCT 2008 3326 SAT | -NR- 12OCT08 -3 Days = 09 OCT 2008 2899 FRI | -NR- 12OCT08 -4 Days = 08 OCT 2008 2785 THU | -NR- 12OCT08 -5 Days = 07 OCT 2008 2398 WED | -NR- 12OCT08 -6 Days = 06 OCT 2008 2708 TUE | -NR- 12OCT08 -7 Days = 05 OCT 2008 2978 MON | -NR- 12OCT08 -8 Days = 04 OCT 2008 2992 SUN | -NR- 12OCT08 -9 Days = 03 OCT 2008 2988 SAT | -NR- 12OCT08 -10 Days = 02 OCT 2008 2528 FRI | -1507 12OCT08 -11 Days = 01 OCT 2008 2838 THU | 7331 12OCT08 -12 Days = 30 SEP 2008 2431 WED | 15341 12OCT08 -13 Days = 29 SEP 2008 1355 TUE | -1720 ______________________________________________________________________________ ______________________________________________________________________________ S65E Average Flow over previous 14 days | Avg-Daily Flow 12OCT08 Today= 12 OCT 2008 468 MON | 797 12OCT08 -1 Day = 11 OCT 2008 452 SUN | 796 12OCT08 -2 Days = 10 OCT 2008 437 SAT | 675 12OCT08 -3 Days = 09 OCT 2008 452 FRI | 548 12OCT08 -4 Days = 08 OCT 2008 488 THU | 348 12OCT08 -5 Days = 07 OCT 2008 571 WED | 361 12OCT08 -6 Days = 06 OCT 2008 658 TUE | 211 12OCT08 -7 Days = 05 OCT 2008 766 MON | 319 12OCT08 -8 Days = 04 OCT 2008 896 SUN | 313 12OCT08 -9 Days = 03 OCT 2008 1026 SAT | 368 12OCT08 -10 Days = 02 OCT 2008 1117 FRI | 517 12OCT08 -11 Days = 01 OCT 2008 1284 THU | 431 12OCT08 -12 Days = 30 SEP 2008 1467 WED | 408 12OCT08 -13 Days = 29 SEP 2008 1702 TUE | 464 ______________________________________________________________________________ Lake Okeechobee Outlets Last 14 Days S-77 S-77 S-78 S-78 Below S308 S-308 Discharge Discharge Discharge Discharge Discharge Discharge (0700-2100) (ALL DAY) (0700-2100) (ALL DAY) (ALL DAY) (ALL DAY) DATE (AC-FT) (AC-FT) (AC-FT) (AC-FT) (AC-FT) (AC-FT) 12 OCT 2008 252 -NR- -NR- -NR- 460 -NR- 11 OCT 2008 824 -NR- 1218 -NR- 801 -NR- 10 OCT 2008 1383 -NR- 1529 2660 795 -NR- 09 OCT 2008 316 -NR- 1500 -NR- 1978 -NR- 08 OCT 2008 944 -NR- 1472 -NR- 3384 -NR- 07 OCT 2008 526 880 1498 2538 4194 3447 06 OCT 2008 953 2089 1497 2863 3927 3244 05 OCT 2008 523 975 1709 2543 2575 2317 04 OCT 2008 0 9 849 2571 1657 -NR- 03 OCT 2008 0 4 988 1792 924 -NR- 02 OCT 2008 0 7 676 974 45 -NR- 01 OCT 2008 652 656 1463 3004 476 -NR- 30 SEP 2008 0 0 1363 2323 759 756 29 SEP 2008 1072 3484 1179 3714 1320 1126 S-79 S-310 S-351 S-352 S-354 L8 Canal Pt Discharge Discharge Discharge Discharge Discharge Discharge (ALL DAY) (ALL DAY) (ALL DAY) (ALL DAY) (ALL DAY) (ALL DAY) DATE (AC-FT) (AC-FT) (AC-FT) (AC-FT) (AC-FT) (AC-FT) 12 OCT 2008 -NR- -NR- -NR- 0 -NR- -147 11 OCT 2008 -NR- -NR- -NR- 0 -NR- -281 10 OCT 2008 -NR- -NR- -NR- 0 -NR- 170 09 OCT 2008 -NR- -NR- -NR- 0 -NR- 138 08 OCT 2008 -NR- -NR- -NR- 0 -NR- -346 07 OCT 2008 6941 -NR- -NR- 0 -NR- -622 06 OCT 2008 7096 -NR- -NR- 0 -NR- -795 05 OCT 2008 5544 -NR- -NR- 0 -NR- -456 04 OCT 2008 4568 -NR- -NR- 0 -NR- 306 03 OCT 2008 5567 -NR- 0 0 0 337 02 OCT 2008 5458 -NR- 0 0 0 342 01 OCT 2008 8951 -NR- 0 0 0 275 30 SEP 2008 10991 -NR- 0 0 0 273 29 SEP 2008 6300 -NR- 0 0 0 380 *** NOTE: 1) Discharge from (0700-2100) is computed using Spillway and Sector Gate Discharges from 0700 hrs to 2100 hrs. 2) 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 ______________________________________________________________________________ * As of 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, we began using the average of the interior 4 station gages as the official Lake Okeechobee Elevation. * On 16 April 2007, Lake Okeechobee Elevation was switched to a 8 gage mixture of interior and exterior gages due to wind effects on Lake O (When the 4 station gages are not working the 10 station elevation is used) Today Lake Okechobee elevation is determined from the 4 interior stations ++ For more information see the Jacksonville District Navigation website at http://www.saj.usace.army.mil/hydroSurvey/hydro.htm $ For information regarding Lake Okeechobee Service Area water restrictions please refer to www.sfwmd.gov ______________________________________________________________________________ Report Generated 13OCT2008 @ 15:15 ** Preliminary Data - Subject to Revision **