U. S. Army Corps of Engineers, Jacksonville District Lake Okeechobee and Vicinity Report Data Ending 2400 hours 14 DEC 2008 _____________________________________________________________________________ Okeechobee Lake Regulation Elevation Last Year 2YRS Ago (ft-NGVD) (ft-NGVD) (ft-NGVD) *Okeechobee Lake Elevation 14.17 10.20 12.07 (Official Elv) Bottom of High Lake Mngmt= 17.25 Top of Water Short Mngmt= 12.29 Currently in Operational Management Band 14DEC (1965-2007) Period of Record Average 14.73 Difference from POR Average -0.56 Simulated Average LORS2008 [1965-2000] 13.63 Difference from Average LORS2008 0.54 Today Lake Okechobee elevation is determined from the 4 interior stations ++Navigation Depths (Based on 2001 Channel Condition Survey) Route 1 ÷ 8.11' Route 2 ÷ 5.51' Bridge Clearance = -NR-' ______________________________________________________________________________ 4 Interior and 4 Edge Okeechobee Lake Average (Avg-Daily values): L001 L005 L006 LZ40 S4 S352 S308 S133 14.04 14.20 14.17 14.28 14.31 14.34 14.09 14.13 *Combination Okeechobee Avg-Daily Lake Average = 14.19 (*See Note) Interior Okeechobee Lake Average (Avg-Daily values): L001 L005 L006 LZ40 14.04 14.20 14.17 14.28 *Interior Okeechobee Avg-Daily Lake Average = 14.17 (*See Note) Okeechobee Lake Average (Avg-Daily values): (BAD) (BAD) C5 S4 S3 S2 S352 S308 S135 S133 S127 S129 14.27 14.31 14.34 14.24 14.34 14.09 14.04 14.13 14.11 14.14 *Edge Okeechobee Avg-Daily Lake Average = 14.20 (*See Note) ______________________________________________________________________________ Okeechobee Inflows (cfs): S65E 340 S191 60 Fisheating Cr 17 S154 0 S133 Pumps -NR- S135 Pumps 0 S84 218 S127 Pumps 0 S2 Pumps 0 S71 0 S129 Pumps 0 S3 Pumps 0 S72 0 S131 Pumps 0 S4 Pumps 0 Total Inflows: 635 Okeechobee Outflows (cfs): S135 Culverts 0 S354 0 S77 4 S127 Culverts 0 S351 -NR- S308 -NR- S129 Culverts 0 S352 53 S131 Culverts L8 Canal Pt 55 C5 -NR- Total Outflows: No Report Due To Missing S77 or S308 Discharge Data Okeechobee Pan Evaporation (inches): S77 0.04 S308 -NR- Average Pan Evap x 0.75 Pan Coefficient = -NR-" = -NR-' Lake Average Precipitation using NEXRAD: = 0.00" = 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 4336 cfs or 8600 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: 13.93 14.10 -NR- 0 0 0 0 -NR- (cfs) S193: ______ S191: 19.23 14.09 60 0.0 0.0 0.0 S135 Pumps: 13.55 14.15 0 0 0 0 0 (cfs) S135 Culverts: 0 0.0 0.0 North West Shore S65E: 20.91 13.58 340 0.0 0.1 0.1 0.1 0.0 0.1 S127 Pumps: 13.56 14.13 0 0 0 0 0 0 (cfs) S127 Culvert: 0 0.0 S129 Pumps: 13.40 14.21 0 0 0 0 (cfs) S129 Culvert: 0 0.0 S131 Pumps: 13.41 14.39 0 0 0 (cfs) S131 Culvert: Fisheating Creek nr Palmdale 28.78 17 nr Lakeport ______ C5: ______ 14.27 -NR- -NR- -NR- -NR- South Shore S4 Pumps: 11.46 14.32 0 0 0 0 (cfs) S169: 14.25 11.67 0 -NR- 0.0 0.0 S310: ______ -NR- S3 Pumps: 10.51 14.28 0 0 0 0 (cfs) S354: 14.28 10.51 0 0.0 0.0 S2 Pumps: 10.52 14.25 0 0 0 0 0 (cfs) S351: 14.25 10.52 -NR- -NR- -NR- -NR- S352: 14.50 10.63 53 0.2 0.0 C10A: -NR- 14.10 -NR- -NR- 7.0 -NR- -NR- L8 Canal PT 14.22 55 _________________________________________________________________________ Temporary Pumps S351: 10.52 14.25 -NR- -NR--NR--NR--NR--NR--NR- S352: 10.63 14.50 53 -NR--NR--NR--NR- S354: 10.51 14.28 0 -NR--NR--NR--NR- _________________________________________________________________________ Caloosahatchee River (S77, S78, S79) S47B: 14.13 12.04 0.0 0.0 S47D: 12.01 11.22 0 0.0 S77: Spillway and Sector Flow: 14.22 11.36 0 0.0 0.0 0.0 0.0 Flow Due to Lockages+: 4 S77 Below USGS Flow Gage 101 (TESTING) S78: Spillway and Sector Flow: 11.21 3.31 174 0.0 0.0 0.5 0.0 Flow Due to Lockages+: 14 S79: Spillway and Sector Flow: 3.22 0.90 447 0.0 0.0 0.5 0.5 0.5 0.0 0.0 0.0 Flow Due to Lockages+: 3 Percent of flow from S77 0% Chloride (ppm) 68 St. Lucie Canal (S308, S80) S308: Spillway and Sector Flow: -NR- -NR- -NR- 2.5 2.5 2.5 0.0 Flow Due to Lockages+: -NR- S308 Below USGS Flow Gage 519 S153: 18.77 13.94 0 0.0 0.0 S80: Spillway and Sector Flow: 14.13 1.03 211 0.0 0.0 0.0 0.4 0.0 0.0 0.0 Flow Due to Lockages+: 18 Percent of flow from S308 -NR-% Steele Point Top Salinity (mg/ml) 33 Steele Point Bottom Salinity (mg/ml) 29 Speedy Point Top Salinity (mg/ml) 17 Speedy Point Bottom Salinity (mg/ml) 19 + 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 0.88 S193: -NR- 0.00 0.00 -NR- -NR- Okeechobee Field Station: -NR- 0.00 0.60 S135 Pump Station: -NR- 0.00 0.79 S127 Pump Station: -NR- 0.00 0.98 S129 Pump Station: -NR- 0.00 0.89 S131 Pump Station: -NR- 0.00 0.61 S77: 0.00 0.00 0.00 300 0 S78: 0.00 0.00 0.90 1 3 S79: 0.00 0.00 1.13 48 5 S4 Pump Station: -NR- 0.00 0.00 Clewiston Field Station: -NR- 0.00 0.51 S3 Pump Station: -NR- 0.00 0.37 S2 Pump Station: -NR- 0.00 0.58 S308: 0.03 0.03 0.24 -NR- -NR- S80: 0.00 0.00 0.29 27 7 Okeechobee Average 0.01 0.00 0.50 (Sites S78, S79 and S80 not included) ______________________________________________________________________________ Okeechobee Lake Elevations 14 DEC 2008 14.17 Difference from 14DEC08 14DEC08 -1 Day = 13 DEC 2008 14.15 -0.02 14DEC08 -2 Days = 12 DEC 2008 14.18 0.01 14DEC08 -3 Days = 11 DEC 2008 14.17 0.00 14DEC08 -4 Days = 10 DEC 2008 14.15 -0.02 14DEC08 -5 Days = 09 DEC 2008 14.16 -0.01 14DEC08 -6 Days = 08 DEC 2008 14.16 -0.01 14DEC08 -7 Days = 07 DEC 2008 14.18 0.01 14DEC08 -30 Days = 14 NOV 2008 14.61 0.44 14DEC08 -1 Year = 14 DEC 2007 10.20 -3.97 14DEC08 -2 Year = 14 DEC 2006 12.07 -2.10 ______________________________________________________________________________ Long Term Mean 30day Avearge ET for Lake Alfred (Inches) = 2.12 ______________________________________________________________________________ Lake Okeechobee Net Inflow (LONIN) Average Flow over the previous 14 days | Avg-Daily Flow 14DEC08 Today = 14 DEC 2008 380 MON | -NR- 14DEC08 -1 Day = 13 DEC 2008 817 SUN | -NR- 14DEC08 -2 Days = 12 DEC 2008 728 SAT | 2527 14DEC08 -3 Days = 11 DEC 2008 565 FRI | 5147 14DEC08 -4 Days = 10 DEC 2008 107 THU | -NR- 14DEC08 -5 Days = 09 DEC 2008 -409 WED | 1575 14DEC08 -6 Days = 08 DEC 2008 -316 TUE | -2823 14DEC08 -7 Days = 07 DEC 2008 -116 MON | -5403 14DEC08 -8 Days = 06 DEC 2008 500 SUN | -373 14DEC08 -9 Days = 05 DEC 2008 -266 SAT | 2327 14DEC08 -10 Days = 04 DEC 2008 -706 FRI | 467 14DEC08 -11 Days = 03 DEC 2008 -347 THU | -NR- 14DEC08 -12 Days = 02 DEC 2008 -1194 WED | -2610 14DEC08 -13 Days = 01 DEC 2008 -1365 TUE | 2961 ______________________________________________________________________________ ______________________________________________________________________________ S65E Average Flow over previous 14 days | Avg-Daily Flow 14DEC08 Today= 14 DEC 2008 216 MON | 340 14DEC08 -1 Day = 13 DEC 2008 206 SUN | 373 14DEC08 -2 Days = 12 DEC 2008 186 SAT | 278 14DEC08 -3 Days = 11 DEC 2008 182 FRI | 230 14DEC08 -4 Days = 10 DEC 2008 172 THU | 104 14DEC08 -5 Days = 09 DEC 2008 171 WED | 185 14DEC08 -6 Days = 08 DEC 2008 165 TUE | 175 14DEC08 -7 Days = 07 DEC 2008 159 MON | 154 14DEC08 -8 Days = 06 DEC 2008 156 SUN | 128 14DEC08 -9 Days = 05 DEC 2008 157 SAT | 266 14DEC08 -10 Days = 04 DEC 2008 146 FRI | 241 14DEC08 -11 Days = 03 DEC 2008 136 THU | 150 14DEC08 -12 Days = 02 DEC 2008 135 WED | 249 14DEC08 -13 Days = 01 DEC 2008 126 TUE | 145 ______________________________________________________________________________ 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) 14 DEC 2008 0 7 205 373 1029 -NR- 13 DEC 2008 0 57 205 -NR- 265 -196 12 DEC 2008 109 241 78 -NR- 443 -18 11 DEC 2008 291 558 376 657 1017 434 10 DEC 2008 467 797 347 558 1162 -NR- 09 DEC 2008 297 457 200 368 1393 589 08 DEC 2008 119 209 199 352 1513 660 07 DEC 2008 155 299 199 392 591 173 06 DEC 2008 472 879 327 571 878 345 05 DEC 2008 654 1054 322 636 952 286 04 DEC 2008 213 365 263 482 1105 357 03 DEC 2008 103 206 177 364 1127 -NR- 02 DEC 2008 101 199 328 635 942 1357 01 DEC 2008 22 49 87 181 357 -NR- 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) 14 DEC 2008 893 -NR- -NR- 105 0 109 13 DEC 2008 1035 -NR- -NR- 109 0 8 12 DEC 2008 1013 -NR- 0 111 0 384 11 DEC 2008 967 -NR- 0 109 0 514 10 DEC 2008 723 -NR- 250 178 264 -NR- 09 DEC 2008 805 -NR- 587 732 712 54 08 DEC 2008 975 -NR- 765 773 577 23 07 DEC 2008 966 -NR- 930 111 502 78 06 DEC 2008 919 -NR- 1110 288 537 311 05 DEC 2008 922 -NR- 1301 783 815 387 04 DEC 2008 938 -NR- 2042 351 1523 495 03 DEC 2008 1030 -NR- 1136 301 1454 430 02 DEC 2008 927 -NR- 178 436 559 499 01 DEC 2008 961 -NR- 0 103 0 413 *** 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 15DEC2008 @ 14:15 ** Preliminary Data - Subject to Revision **