U. S. Army Corps of Engineers, Jacksonville District Lake Okeechobee and Vicinity Report Data Ending 2400 hours 23 NOV 2008 _____________________________________________________________________________ Okeechobee Lake Regulation Elevation Last Year 2YRS Ago (ft-NGVD) (ft-NGVD) (ft-NGVD) *Okeechobee Lake Elevation 14.34 10.29 12.28 (Official Elv) Bottom of High Lake Mngmt= 17.25 Top of Water Short Mngmt= 12.49 Currently in Operational Management Band 23NOV (1965-2007) Period of Record Average 14.89 Difference from POR Average -0.55 Simulated Average LORS2008 [1965-2000] 13.82 Difference from Average LORS2008 0.52 Today Lake Okechobee elevation is determined from the 4 interior stations ++Navigation Depths (Based on 2001 Channel Condition Survey) Route 1 ÷ 8.28' Route 2 ÷ 5.68' Bridge Clearance = 49.20' ______________________________________________________________________________ 4 Interior and 4 Edge Okeechobee Lake Average (Avg-Daily values): L001 L005 L006 LZ40 S4 S352 S308 S133 14.15 14.36 14.43 14.41 14.58 14.61 14.39 14.20 *Combination Okeechobee Avg-Daily Lake Average = 14.39 (*See Note) Interior Okeechobee Lake Average (Avg-Daily values): L001 L005 L006 LZ40 14.15 14.36 14.43 14.41 *Interior Okeechobee Avg-Daily Lake Average = 14.34 (*See Note) Okeechobee Lake Average (Avg-Daily values): (BAD) (BAD) C5 S4 S3 S2 S352 S308 S135 S133 S127 S129 14.48 14.58 14.67 14.58 14.61 14.39 14.21 14.20 14.23 14.27 *Edge Okeechobee Avg-Daily Lake Average = 14.42 (*See Note) ______________________________________________________________________________ Okeechobee Inflows (cfs): S65E 133 S191 0 Fisheating Cr 15 S154 0 S133 Pumps -NR- S135 Pumps 0 S84 0 S127 Pumps 0 S2 Pumps 0 S71 8 S129 Pumps 0 S3 Pumps 0 S72 0 S131 Pumps 0 S4 Pumps 0 Total Inflows: 156 Okeechobee Outflows (cfs): S135 Culverts 0 S354 0 S77 346 S127 Culverts -NR- S351 0 S308 612 S129 Culverts 0 S352 0 S131 Culverts L8 Canal Pt 236 C5 -NR- Total Outflows: 1195 Okeechobee Pan Evaporation (inches): S77 0.08 S308 0.15 Average Pan Evap x 0.75 Pan Coefficient = 0.09" = 0.01' Lake Average Precipitation using NEXRAD: = 0.00" = 0.00' Evaporation - Precipitation: = 0.09" = 0.01' Evaporation - Precipitation using Lake Area of 730 square miles is equal to 1693 cfs out of the lake. 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: 13.82 14.27 -NR- 0 0 0 0 -NR- (cfs) S193: ______ S191: 19.48 14.26 0 0.0 0.0 -NR- S135 Pumps: 12.98 14.26 0 0 0 0 0 (cfs) S135 Culverts: 0 0.0 0.0 North West Shore S65E: 20.97 14.31 133 0.1 0.1 0.1 0.1 0.1 0.1 S127 Pumps: 13.37 14.24 0 0 0 0 0 0 (cfs) S127 Culvert: -NR- -NR- S129 Pumps: 13.34 14.27 0 0 0 0 (cfs) S129 Culvert: 0 0.0 S131 Pumps: 13.39 14.45 0 0 0 (cfs) S131 Culvert: Fisheating Creek nr Palmdale 28.65 15 nr Lakeport ______ C5: ______ 14.48 -NR- -NR- -NR- -NR- South Shore S4 Pumps: 11.23 14.61 0 0 0 0 (cfs) S169: 14.63 11.44 0 0.0 0.0 0.0 S310: ______ -NR- S3 Pumps: 10.83 14.69 0 0 0 0 (cfs) S354: 14.69 10.83 0 0.0 0.0 S2 Pumps: 10.61 14.61 0 0 0 0 0 (cfs) S351: 14.61 10.61 0 0.0 0.0 0.0 S352: 14.58 10.74 0 0.6 0.0 C10A: -NR- 14.27 -NR- -NR- 7.0 -NR- -NR- L8 Canal PT 14.34 236 _________________________________________________________________________ Temporary Pumps S351: 10.61 14.61 0 -NR--NR--NR--NR--NR--NR- S352: 10.74 14.58 0 -NR--NR--NR--NR- S354: 10.83 14.69 0 -NR--NR--NR--NR- _________________________________________________________________________ Caloosahatchee River (S77, S78, S79) S47B: 14.21 12.12 0.0 0.0 S47D: 12.13 10.98 0 0.0 S77: Spillway and Sector Flow: 14.40 11.12 344 0.0 0.5 0.5 0.0 Flow Due to Lockages+: 2 S77 Below USGS Flow Gage 433 (TESTING) S78: Spillway and Sector Flow: 11.04 3.21 320 0.0 0.5 0.5 0.0 Flow Due to Lockages+: 8 S79: Spillway and Sector Flow: 3.15 1.03 483 0.0 0.0 0.0 0.5 0.5 0.5 0.0 0.0 Flow Due to Lockages+: 11 Percent of flow from S77 71% Chloride (ppm) 56 St. Lucie Canal (S308, S80) S308: Spillway and Sector Flow: 14.38 14.30 612 4.0 4.0 4.0 0.0 Flow Due to Lockages+: 0 S308 Below USGS Flow Gage 532 S153: 18.69 14.18 0 0.0 0.0 S80: Spillway and Sector Flow: 14.37 0.94 214 0.0 0.4 0.0 0.0 0.0 0.0 0.0 Flow Due to Lockages+: 34 Percent of flow from S308 286% Steele Point Top Salinity (mg/ml) 29 Steele Point Bottom Salinity (mg/ml) 27 Speedy Point Top Salinity (mg/ml) 15 Speedy Point Bottom Salinity (mg/ml) 17 + 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: 0.00 0.00 0.00 S193: -NR- 0.00 0.00 -NR- -NR- Okeechobee Field Station: 0.00 0.00 0.00 S135 Pump Station: 0.00 0.00 0.00 S127 Pump Station: 0.00 0.00 0.00 S129 Pump Station: 0.00 0.00 0.00 S131 Pump Station: 0.00 0.00 0.00 S77: 0.00 0.00 0.00 194 6 S78: 0.00 0.01 0.01 66 2 S79: 0.00 0.00 0.00 31 4 S4 Pump Station: -NR- 0.00 0.00 Clewiston Field Station: 0.00 0.00 0.00 S3 Pump Station: 0.00 0.00 0.00 S2 Pump Station: 0.00 0.00 0.00 S308: 0.00 0.00 0.00 39 0 S80: 0.01 0.01 0.01 62 1 Okeechobee Average 0.00 0.00 0.00 (Sites S78, S79 and S80 not included) ______________________________________________________________________________ Okeechobee Lake Elevations 23 NOV 2008 14.34 Difference from 23NOV08 23NOV08 -1 Day = 22 NOV 2008 14.34 0.00 23NOV08 -2 Days = 21 NOV 2008 14.39 0.05 23NOV08 -3 Days = 20 NOV 2008 14.41 0.07 23NOV08 -4 Days = 19 NOV 2008 14.40 0.06 23NOV08 -5 Days = 18 NOV 2008 14.46 0.12 23NOV08 -6 Days = 17 NOV 2008 14.49 0.15 23NOV08 -7 Days = 16 NOV 2008 14.53 0.19 23NOV08 -30 Days = 24 OCT 2008 14.88 0.54 23NOV08 -1 Year = 23 NOV 2007 10.29 -4.05 23NOV08 -2 Year = 23 NOV 2006 12.28 -2.06 ______________________________________________________________________________ Long Term Mean 30day Avearge ET for Lake Alfred (Inches) = 2.53 ______________________________________________________________________________ Lake Okeechobee Net Inflow (LONIN) Average Flow over the previous 14 days | Avg-Daily Flow 23NOV08 Today = 23 NOV 2008 -4088 MON | 1192 23NOV08 -1 Day = 22 NOV 2008 -4596 SUN | -8947 23NOV08 -2 Days = 21 NOV 2008 -4005 SAT | -2688 23NOV08 -3 Days = 20 NOV 2008 -3894 FRI | -NR- 23NOV08 -4 Days = 19 NOV 2008 -3732 THU | -11044 23NOV08 -5 Days = 18 NOV 2008 -2872 WED | -5210 23NOV08 -6 Days = 17 NOV 2008 -2747 TUE | -7312 23NOV08 -7 Days = 16 NOV 2008 -2332 MON | -11589 23NOV08 -8 Days = 15 NOV 2008 -1467 SUN | -3361 23NOV08 -9 Days = 14 NOV 2008 -1334 SAT | -1054 23NOV08 -10 Days = 13 NOV 2008 -1355 FRI | 1243 23NOV08 -11 Days = 12 NOV 2008 -1731 THU | 3654 23NOV08 -12 Days = 11 NOV 2008 -2292 WED | -2832 23NOV08 -13 Days = 10 NOV 2008 -3193 TUE | -5189 ______________________________________________________________________________ ______________________________________________________________________________ S65E Average Flow over previous 14 days | Avg-Daily Flow 23NOV08 Today= 23 NOV 2008 203 MON | 133 23NOV08 -1 Day = 22 NOV 2008 208 SUN | 152 23NOV08 -2 Days = 21 NOV 2008 205 SAT | 102 23NOV08 -3 Days = 20 NOV 2008 212 FRI | 106 23NOV08 -4 Days = 19 NOV 2008 216 THU | 153 23NOV08 -5 Days = 18 NOV 2008 225 WED | 125 23NOV08 -6 Days = 17 NOV 2008 216 TUE | 277 23NOV08 -7 Days = 16 NOV 2008 196 MON | 265 23NOV08 -8 Days = 15 NOV 2008 185 SUN | 290 23NOV08 -9 Days = 14 NOV 2008 164 SAT | 338 23NOV08 -10 Days = 13 NOV 2008 140 FRI | 272 23NOV08 -11 Days = 12 NOV 2008 121 THU | 365 23NOV08 -12 Days = 11 NOV 2008 100 WED | 121 23NOV08 -13 Days = 10 NOV 2008 92 TUE | 147 ______________________________________________________________________________ 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) 23 NOV 2008 291 687 377 651 1054 1214 22 NOV 2008 730 1246 379 662 1145 1459 21 NOV 2008 731 1239 376 657 958 1309 20 NOV 2008 754 1291 250 515 1310 -NR- 19 NOV 2008 558 971 368 649 971 2381 18 NOV 2008 495 838 370 642 737 1147 17 NOV 2008 495 841 383 654 1102 973 16 NOV 2008 405 637 318 503 1094 -NR- 15 NOV 2008 252 440 200 357 634 676 14 NOV 2008 224 440 170 -NR- 1163 1050 13 NOV 2008 413 785 204 -NR- 1030 1018 12 NOV 2008 454 883 324 649 1431 1494 11 NOV 2008 399 678 330 567 1075 1471 10 NOV 2008 223 437 154 321 1192 1283 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) 23 NOV 2008 980 -NR- 0 0 0 468 22 NOV 2008 1012 -NR- 0 0 0 563 21 NOV 2008 846 -NR- 0 0 0 628 20 NOV 2008 930 -NR- 0 0 0 604 19 NOV 2008 1035 -NR- 0 0 0 554 18 NOV 2008 938 -NR- 0 0 0 586 17 NOV 2008 920 -NR- 0 0 0 591 16 NOV 2008 854 -NR- 0 0 0 598 15 NOV 2008 751 -NR- 0 0 0 634 14 NOV 2008 950 -NR- 0 0 0 627 13 NOV 2008 983 -NR- 0 0 0 671 12 NOV 2008 806 -NR- 0 0 0 680 11 NOV 2008 814 -NR- 0 0 0 655 10 NOV 2008 847 -NR- 0 0 0 597 *** 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 24NOV2008 @ 16:16 ** Preliminary Data - Subject to Revision **