U. S. Army Corps of Engineers, Jacksonville District Lake Okeechobee and Vicinity Report Data Ending 2400 hours 04 JAN 2009 _____________________________________________________________________________ Okeechobee Lake Regulation Elevation Last Year 2YRS Ago (ft-NGVD) (ft-NGVD) (ft-NGVD) *Okeechobee Lake Elevation 13.92 10.17 12.12 (Official Elv) Bottom of High Lake Mngmt= 17.25 Top of Water Short Mngmt= 12.13 Currently in Operational Management Band 04JAN (1965-2007) Period of Record Average 14.75 Difference from POR Average -0.83 Simulated Average LORS2008 [1965-2000] -NR- Difference from Average LORS2008 -NR- Today Lake Okechobee elevation is determined from the 4 interior stations ++Navigation Depths (Based on 2001 Channel Condition Survey) Route 1 ÷ 7.86' Route 2 ÷ 5.26' Bridge Clearance = 49.63' ______________________________________________________________________________ 4 Interior and 4 Edge Okeechobee Lake Average (Avg-Daily values): L001 L005 L006 LZ40 S4 S352 S308 S133 13.81 13.95 13.93 13.99 14.04 14.14 13.93 13.90 *Combination Okeechobee Avg-Daily Lake Average = 13.96 (*See Note) Interior Okeechobee Lake Average (Avg-Daily values): L001 L005 L006 LZ40 13.81 13.95 13.93 13.99 *Interior Okeechobee Avg-Daily Lake Average = 13.92 (*See Note) Okeechobee Lake Average (Avg-Daily values): (BAD) (BAD) C5 S4 S3 S2 S352 S308 S135 S133 S127 S129 13.98 14.04 14.09 14.01 14.14 13.93 13.83 13.90 13.91 13.90 *Edge Okeechobee Avg-Daily Lake Average = 13.97 (*See Note) ______________________________________________________________________________ Okeechobee Inflows (cfs): S65E 0 S191 0 Fisheating Cr 11 S154 0 S133 Pumps -NR- S135 Pumps 0 S84 0 S127 Pumps 0 S2 Pumps 0 S71 0 S129 Pumps 0 S3 Pumps 0 S72 0 S131 Pumps 0 S4 Pumps 0 Total Inflows: 11 Okeechobee Outflows (cfs): S135 Culverts 0 S354 223 S77 478 S127 Culverts 0 S351 119 S308 46 S129 Culverts 0 S352 105 S131 Culverts L8 Canal Pt 248 C5 -NR- Total Outflows: 1218 Okeechobee Pan Evaporation (inches): S77 -NR- S308 0.12 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 -2118 cfs or -4200 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 13.88 -NR- 0 0 0 0 -NR- (cfs) S193: ______ S191: 19.47 13.79 0 0.0 0.0 0.0 S135 Pumps: 13.20 13.82 0 0 0 0 0 (cfs) S135 Culverts: 0 0.0 0.0 North West Shore S65E: 21.08 13.77 0 0.0 0.0 0.0 0.0 0.0 0.0 S127 Pumps: 13.33 13.89 0 0 0 0 0 0 (cfs) S127 Culvert: 0 0.0 S129 Pumps: 13.46 13.89 0 0 0 0 (cfs) S129 Culvert: 0 0.0 S131 Pumps: 13.23 14.04 0 0 0 (cfs) S131 Culvert: Fisheating Creek nr Palmdale 28.42 11 nr Lakeport ______ C5: ______ 13.98 -NR- -NR- -NR- -NR- South Shore S4 Pumps: 11.14 14.05 0 0 0 0 (cfs) S169: 14.07 11.31 0 0.0 0.0 0.0 S310: ______ -NR- S3 Pumps: 10.55 14.10 0 0 0 0 (cfs) S354: 14.10 10.55 223 0.6 0.8 S2 Pumps: 10.56 14.02 0 0 0 0 0 (cfs) S351: 14.02 10.56 119 0.4 0.3 0.4 S352: 14.14 10.86 105 0.4 0.0 C10A: -NR- 13.81 -NR- -NR- 7.0 -NR- -NR- L8 Canal PT 13.91 248 _________________________________________________________________________ Temporary Pumps S351: 10.56 14.02 119 -NR--NR--NR--NR--NR--NR- S352: 10.86 14.14 105 -NR--NR--NR--NR- S354: 10.55 14.10 223 -NR--NR--NR--NR- _________________________________________________________________________ Caloosahatchee River (S77, S78, S79) S47B: 13.82 11.82 0.0 0.0 S47D: 11.79 11.00 0 0.0 S77: Spillway and Sector Flow: 13.96 11.15 475 0.5 1.0 0.5 0.5 Flow Due to Lockages+: 3 S77 Below USGS Flow Gage 538 (TESTING) S78: Spillway and Sector Flow: 10.88 3.22 313 0.0 0.5 0.5 0.0 Flow Due to Lockages+: 9 S79: Spillway and Sector Flow: 3.08 0.84 672 0.0 0.2 0.5 0.5 0.5 0.5 0.0 0.0 Flow Due to Lockages+: 13 Percent of flow from S77 71% Chloride (ppm) 69 St. Lucie Canal (S308, S80) S308: Spillway and Sector Flow: 13.92 13.87 46 0.0 0.0 0.0 0.0 Flow Due to Lockages+: 0 S308 Below USGS Flow Gage 86 S153: 18.65 13.76 47 0.0 0.0 S80: Spillway and Sector Flow: 14.06 -0.52 0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 Flow Due to Lockages+: 24 Percent of flow from S308 -NR-% Steele Point Top Salinity (mg/ml) 31 Steele Point Bottom Salinity (mg/ml) 30 Speedy Point Top Salinity (mg/ml) 19 Speedy Point Bottom Salinity (mg/ml) 22 + 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 0.00 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: 0.00 0.00 0.00 280 0 S78: 0.01 0.02 0.02 8 0 S79: 0.00 0.00 0.00 67 4 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: 0.00 0.00 0.00 39 0 S80: 0.00 0.00 0.00 27 0 Okeechobee Average 0.00 0.00 0.00 (Sites S78, S79 and S80 not included) ______________________________________________________________________________ Okeechobee Lake Elevations 04 JAN 2009 13.92 Difference from 04JAN09 04JAN09 -1 Day = 03 JAN 2009 13.93 0.01 04JAN09 -2 Days = 02 JAN 2009 13.95 0.03 04JAN09 -3 Days = 01 JAN 2009 13.97 0.05 04JAN09 -4 Days = 31 DEC 2008 13.99 0.07 04JAN09 -5 Days = 30 DEC 2008 14.01 0.09 04JAN09 -6 Days = 29 DEC 2008 14.03 0.11 04JAN09 -7 Days = 28 DEC 2008 14.04 0.12 04JAN09 -30 Days = 05 DEC 2008 14.22 0.30 04JAN09 -1 Year = 04 JAN 2008 10.17 -3.75 04JAN09 -2 Year = 04 JAN 2007 12.12 -1.80 ______________________________________________________________________________ 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 04JAN09 Today = 04 JAN 2009 -1142 MON | -NR- 04JAN09 -1 Day = 03 JAN 2009 -1142 SUN | -2767 04JAN09 -2 Days = 02 JAN 2009 -795 SAT | -2454 04JAN09 -3 Days = 01 JAN 2009 -687 FRI | -2033 04JAN09 -4 Days = 31 DEC 2008 -553 THU | -1951 04JAN09 -5 Days = 30 DEC 2008 -463 WED | -2307 04JAN09 -6 Days = 29 DEC 2008 -258 TUE | -806 04JAN09 -7 Days = 28 DEC 2008 -189 MON | -1157 04JAN09 -8 Days = 27 DEC 2008 -51 SUN | -1243 04JAN09 -9 Days = 26 DEC 2008 148 SAT | -NR- 04JAN09 -10 Days = 25 DEC 2008 488 FRI | 922 04JAN09 -11 Days = 24 DEC 2008 1091 THU | -413 04JAN09 -12 Days = 23 DEC 2008 1342 WED | 1652 04JAN09 -13 Days = 22 DEC 2008 1329 TUE | -NR- ______________________________________________________________________________ ______________________________________________________________________________ S65E Average Flow over previous 14 days | Avg-Daily Flow 04JAN09 Today= 04 JAN 2009 112 MON | 0 04JAN09 -1 Day = 03 JAN 2009 113 SUN | 71 04JAN09 -2 Days = 02 JAN 2009 115 SAT | 182 04JAN09 -3 Days = 01 JAN 2009 124 FRI | 115 04JAN09 -4 Days = 31 DEC 2008 134 THU | 91 04JAN09 -5 Days = 30 DEC 2008 149 WED | 125 04JAN09 -6 Days = 29 DEC 2008 154 TUE | 111 04JAN09 -7 Days = 28 DEC 2008 167 MON | 162 04JAN09 -8 Days = 27 DEC 2008 180 SUN | 117 04JAN09 -9 Days = 26 DEC 2008 198 SAT | 108 04JAN09 -10 Days = 25 DEC 2008 210 FRI | 170 04JAN09 -11 Days = 24 DEC 2008 215 THU | 84 04JAN09 -12 Days = 23 DEC 2008 216 WED | 125 04JAN09 -13 Days = 22 DEC 2008 221 TUE | 103 ______________________________________________________________________________ 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) 04 JAN 2009 560 948 369 638 171 91 03 JAN 2009 777 1278 483 833 318 187 02 JAN 2009 884 1625 542 928 359 135 01 JAN 2009 1227 2056 115 -NR- -23 -22 31 DEC 2008 1208 2045 695 1199 90 193 30 DEC 2008 1126 1715 620 946 95 121 29 DEC 2008 453 817 384 683 24 108 28 DEC 2008 450 776 373 658 271 1 27 DEC 2008 454 773 374 651 250 -0 26 DEC 2008 394 906 328 722 166 -NR- 25 DEC 2008 628 1218 473 913 -9 -24 24 DEC 2008 640 1162 475 835 742 448 23 DEC 2008 502 913 412 736 645 349 22 DEC 2008 426 860 329 756 -49 -2 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) 04 JAN 2009 1358 -NR- 236 208 442 491 03 JAN 2009 1360 -NR- 323 190 434 504 02 JAN 2009 1361 -NR- 633 192 466 488 01 JAN 2009 1428 -NR- 1114 115 678 431 31 DEC 2008 1345 -NR- 817 286 678 517 30 DEC 2008 1355 -NR- 414 288 787 506 29 DEC 2008 1313 -NR- 232 105 819 527 28 DEC 2008 1333 -NR- 190 101 349 502 27 DEC 2008 1352 -NR- 139 139 214 482 26 DEC 2008 1249 -NR- 141 167 93 460 25 DEC 2008 1250 -NR- 0 125 26 492 24 DEC 2008 1189 -NR- 759 105 410 495 23 DEC 2008 1327 -NR- 982 178 420 441 22 DEC 2008 1451 -NR- -NR- 270 286 484 *** 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 05JAN2009 @ 14:15 ** Preliminary Data - Subject to Revision **