U. S. Army Corps of Engineers, Jacksonville District Lake Okeechobee and Vicinity Report Data Ending 2400 hours 11 JAN 2009 _____________________________________________________________________________ Okeechobee Lake Regulation Elevation Last Year 2YRS Ago (ft-NGVD) (ft-NGVD) (ft-NGVD) *Okeechobee Lake Elevation 13.82 10.13 11.99 (Official Elv) Bottom of High Lake Mngmt= 17.25 Top of Water Short Mngmt= 12.10 Currently in Operational Management Band 11JAN (1965-2007) Period of Record Average 14.72 Difference from POR Average -0.90 Simulated Average LORS2008 [1965-2000] 13.58 Difference from Average LORS2008 0.24 Today Lake Okechobee elevation is determined from the 4 interior stations ++Navigation Depths (Based on 2001 Channel Condition Survey) Route 1 ÷ 7.76' Route 2 ÷ 5.16' Bridge Clearance = 49.74' ______________________________________________________________________________ 4 Interior and 4 Edge Okeechobee Lake Average (Avg-Daily values): L001 L005 L006 LZ40 S4 S352 S308 S133 13.71 13.80 13.82 13.95 13.86 14.05 13.83 13.81 *Combination Okeechobee Avg-Daily Lake Average = 13.85 (*See Note) Interior Okeechobee Lake Average (Avg-Daily values): L001 L005 L006 LZ40 13.71 13.80 13.82 13.95 *Interior Okeechobee Avg-Daily Lake Average = 13.82 (*See Note) Okeechobee Lake Average (Avg-Daily values): (BAD) (BAD) C5 S4 S3 S2 S352 S308 S135 S133 S127 S129 13.76 13.86 13.94 13.88 14.05 13.83 13.76 13.81 13.77 13.75 *Edge Okeechobee Avg-Daily Lake Average = 13.84 (*See Note) ______________________________________________________________________________ Okeechobee Inflows (cfs): S65E 146 S191 0 Fisheating Cr -NR- 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: 146 Okeechobee Outflows (cfs): S135 Culverts 0 S354 216 S77 775 S127 Culverts 0 S351 731 S308 1 S129 Culverts 0 S352 129 S131 Culverts L8 Canal Pt -NR- C5 -NR- Total Outflows: 1851 Okeechobee Pan Evaporation (inches): S77 0.18 S308 0.08 Average Pan Evap x 0.75 Pan Coefficient = 0.10" = 0.01' Lake Average Precipitation using NEXRAD: = 0.00" = 0.00' Evaporation - Precipitation: = 0.10" = 0.01' Evaporation - Precipitation using Lake Area of 730 square miles is equal to 1914 cfs out of the lake. Lake Okeechobee (Change in Storage) Flow is -4235 cfs or -8400 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: 13.74 13.79 -NR- 0 0 0 0 -NR- (cfs) S193: ______ S191: 19.27 13.78 0 0.0 0.0 0.0 S135 Pumps: 13.38 13.77 0 0 0 0 0 (cfs) S135 Culverts: 0 0.0 1.0 North West Shore S65E: 21.08 13.63 146 0.0 0.0 0.0 0.1 0.0 0.0 S127 Pumps: 13.52 13.74 0 0 0 0 0 0 (cfs) S127 Culvert: 0 1.0 S129 Pumps: 13.46 13.68 0 0 0 0 (cfs) S129 Culvert: 0 0.0 S131 Pumps: 13.24 13.73 0 0 0 (cfs) S131 Culvert: Fisheating Creek nr Palmdale ______ -NR- nr Lakeport ______ C5: ______ 13.76 -NR- -NR- -NR- -NR- South Shore S4 Pumps: 11.18 13.81 0 0 0 0 (cfs) S169: 13.89 11.37 0 0.0 0.0 0.0 S310: ______ -NR- S3 Pumps: 11.13 13.96 0 0 0 0 (cfs) S354: 13.96 11.13 216 0.4 0.6 S2 Pumps: 11.35 13.90 0 0 0 0 0 (cfs) S351: 13.90 11.35 731 1.2 1.1 1.2 S352: 14.03 11.21 129 0.6 0.2 C10A: -NR- 13.74 -NR- -NR- 7.0 -NR- -NR- L8 Canal PT ______ -NR- _________________________________________________________________________ Temporary Pumps S351: 11.35 13.90 731 -NR--NR--NR--NR--NR--NR- S352: 11.21 14.03 129 -NR--NR--NR--NR- S354: 11.13 13.96 216 -NR--NR--NR--NR- _________________________________________________________________________ Caloosahatchee River (S77, S78, S79) S47B: 13.46 11.65 0.0 0.0 S47D: 11.43 10.95 0 0.0 S77: Spillway and Sector Flow: 13.61 11.10 768 1.0 1.0 1.0 1.0 Flow Due to Lockages+: 7 S77 Below USGS Flow Gage -NR- (TESTING) S78: Spillway and Sector Flow: 10.93 3.16 375 0.0 0.5 0.5 0.0 Flow Due to Lockages+: -NR- S79: Spillway and Sector Flow: 3.14 0.97 642 0.0 0.2 0.5 0.5 0.5 0.5 0.0 0.0 Flow Due to Lockages+: 11 Percent of flow from S77 120% Chloride (ppm) 73 St. Lucie Canal (S308, S80) S308: Spillway and Sector Flow: 13.81 13.76 0 0.0 0.0 0.0 0.0 Flow Due to Lockages+: 1 S308 Below USGS Flow Gage -NR- S153: 19.07 13.61 0 0.0 0.0 S80: Spillway and Sector Flow: 13.89 0.28 0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 Flow Due to Lockages+: 30 Percent of flow from S308 -NR-% 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. ______________________________________________________________________________ ----- Wind ---- Daily Precipitation Totals 1-Day 3-Day 7-Day Direction Speed (inches) (inches) (inches) (Degų) (mph) S133 Pump Station: -NR- 0.00 0.02 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 0.02 S131 Pump Station: -NR- 0.00 0.03 S77: 0.00 0.00 0.00 26 0 S78: 0.00 0.00 0.03 17 0 S79: 0.00 0.00 0.00 121 0 S4 Pump Station: -NR- 0.00 0.00 Clewiston Field Station: -NR- 0.00 0.02 S3 Pump Station: -NR- 0.00 0.01 S2 Pump Station: -NR- 0.00 0.00 S308: 0.00 0.00 0.51 192 3 S80: 0.00 0.00 0.01 41 0 Okeechobee Average 0.00 0.00 0.05 (Sites S78, S79 and S80 not included) ______________________________________________________________________________ Okeechobee Lake Elevations 11 JAN 2009 13.82 Difference from 11JAN09 11JAN09 -1 Day = 10 JAN 2009 13.84 0.02 11JAN09 -2 Days = 09 JAN 2009 13.86 0.04 11JAN09 -3 Days = 08 JAN 2009 13.89 0.07 11JAN09 -4 Days = 07 JAN 2009 13.90 0.08 11JAN09 -5 Days = 06 JAN 2009 13.91 0.09 11JAN09 -6 Days = 05 JAN 2009 13.91 0.09 11JAN09 -7 Days = 04 JAN 2009 13.92 0.10 11JAN09 -30 Days = 12 DEC 2008 14.18 0.36 11JAN09 -1 Year = 11 JAN 2008 10.13 -3.69 11JAN09 -2 Year = 11 JAN 2007 11.99 -1.83 ______________________________________________________________________________ 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 11JAN09 Today = 11 JAN 2009 -2053 MON | -NR- 11JAN09 -1 Day = 10 JAN 2009 -1925 SUN | -NR- 11JAN09 -2 Days = 09 JAN 2009 -1840 SAT | -NR- 11JAN09 -3 Days = 08 JAN 2009 -1840 FRI | -NR- 11JAN09 -4 Days = 07 JAN 2009 -1533 THU | -NR- 11JAN09 -5 Days = 06 JAN 2009 -1421 WED | -NR- 11JAN09 -6 Days = 05 JAN 2009 -1142 TUE | -NR- 11JAN09 -7 Days = 04 JAN 2009 -1142 MON | -NR- 11JAN09 -8 Days = 03 JAN 2009 -1142 SUN | -2767 11JAN09 -9 Days = 02 JAN 2009 -795 SAT | -2454 11JAN09 -10 Days = 01 JAN 2009 -687 FRI | -2033 11JAN09 -11 Days = 31 DEC 2008 -553 THU | -1951 11JAN09 -12 Days = 30 DEC 2008 -463 WED | -2307 11JAN09 -13 Days = 29 DEC 2008 -258 TUE | -806 ______________________________________________________________________________ ______________________________________________________________________________ S65E Average Flow over previous 14 days | Avg-Daily Flow 11JAN09 Today= 11 JAN 2009 119 MON | 146 11JAN09 -1 Day = 10 JAN 2009 120 SUN | 246 11JAN09 -2 Days = 09 JAN 2009 107 SAT | 105 11JAN09 -3 Days = 08 JAN 2009 108 FRI | -NR- 11JAN09 -4 Days = 07 JAN 2009 113 THU | -NR- 11JAN09 -5 Days = 06 JAN 2009 111 WED | -NR- 11JAN09 -6 Days = 05 JAN 2009 112 TUE | -NR- 11JAN09 -7 Days = 04 JAN 2009 111 MON | 0 11JAN09 -8 Days = 03 JAN 2009 112 SUN | 53 11JAN09 -9 Days = 02 JAN 2009 115 SAT | 179 11JAN09 -10 Days = 01 JAN 2009 125 FRI | 120 11JAN09 -11 Days = 31 DEC 2008 135 THU | 95 11JAN09 -12 Days = 30 DEC 2008 150 WED | 131 11JAN09 -13 Days = 29 DEC 2008 154 TUE | 111 ______________________________________________________________________________ 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) 11 JAN 2009 906 1537 412 -NR- -NR- 1 10 JAN 2009 936 1583 532 918 -NR- -NR- 09 JAN 2009 935 1580 534 924 -NR- 97 08 JAN 2009 943 1699 530 1056 -NR- 0 07 JAN 2009 1082 1773 890 1453 291003 169 06 JAN 2009 669 1135 603 1042 334 -NR- 05 JAN 2009 563 954 465 773 149 -NR- 04 JAN 2009 560 948 369 638 171 91 03 JAN 2009 777 1278 483 833 318 187 02 JAN 2009 740 1625 475 928 359 135 01 JAN 2009 1080 2056 115 -NR- -23 -22 31 DEC 2008 1060 2045 599 1199 90 193 30 DEC 2008 999 1715 553 946 95 121 29 DEC 2008 398 817 338 683 24 108 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) 11 JAN 2009 1295 -NR- 1450 256 428 -NR- 10 JAN 2009 1367 -NR- 1711 420 426 -NR- 09 JAN 2009 1372 -NR- 1697 730 910 -NR- 08 JAN 2009 1447 -NR- 361 137 87 -NR- 07 JAN 2009 1235 -NR- -NR- -NR- -NR- -NR- 06 JAN 2009 1199 -NR- -NR- -NR- -NR- 475 05 JAN 2009 1301 -NR- -NR- -NR- -NR- 462 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 *** 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 12JAN2009 @ 16:16 ** Preliminary Data - Subject to Revision **