U. S. Army Corps of Engineers, Jacksonville District Lake Okeechobee and Vicinity Report Data Ending 2400 hours 12 OCT 2009 _____________________________________________________________________________ Okeechobee Lake Regulation Elevation Last Year 2YRS Ago (ft-NGVD) (ft-NGVD) (ft-NGVD) *Okeechobee Lake Elevation 14.43 15.00 10.10 (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 15.03 Difference from POR Average -0.60 Simulated Average LORS2008 [1965-2000] 13.95 Difference from Average LORS2008 0.48 Today Lake Okechobee elevation is determined from the 4 interior stations ++Navigation Depths (Based on 2001 Channel Condition Survey) Route 1 ÷ 8.37' Route 2 ÷ 5.77' Bridge Clearance = 49.40' ______________________________________________________________________________ 4 Interior and 4 Edge Okeechobee Lake Average (Avg-Daily values): L001 L005 L006 LZ40 S4 S352 S308 S133 14.32 14.42 14.42 14.54 14.53 14.60 14.41 14.41 *Combination Okeechobee Avg-Daily Lake Average = 14.46 (*See Note) Interior Okeechobee Lake Average (Avg-Daily values): L001 L005 L006 LZ40 14.32 14.42 14.42 14.54 *Interior Okeechobee Avg-Daily Lake Average = 14.43 (*See Note) Okeechobee Lake Average (Avg-Daily values): (BAD) (BAD) C5 S4 S3 S2 S352 S308 S135 S133 S127 S129 14.52 14.53 14.55 14.47 14.60 14.41 14.33 14.41 14.40 14.55 *Edge Okeechobee Avg-Daily Lake Average = 14.48 (*See Note) ______________________________________________________________________________ Okeechobee Inflows (cfs): S65E 615 S191 17 Fisheating Cr 47 S154 0 S133 Pumps -NR- S135 Pumps 0 S84 0 S127 Pumps 0 S2 Pumps 0 S71 0 S129 Pumps 31 S3 Pumps 0 S72 0 S131 Pumps 0 S4 Pumps 0 Total Inflows: 710 Okeechobee Outflows (cfs): S135 Culverts 0 S354 0 S77 5 S127 Culverts 0 S351 0 S308 1 S129 Culverts 0 S352 0 S131 Culverts L8 Canal Pt -NR- C5 -NR- Total Outflows: 6 Okeechobee Pan Evaporation (inches): S77 0.23 S308 0.16 Average Pan Evap x 0.75 Pan Coefficient = 0.15" = 0.01' Lake Average Precipitation using NEXRAD: = 0.00" = 0.00' Evaporation - Precipitation: = 0.15" = 0.01' Evaporation - Precipitation using Lake Area of 730 square miles is equal to 2871 cfs out of the lake. Lake Okeechobee (Change in Storage) Flow is -2168 cfs or -4300 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: 13.56 14.44 -NR- 0 0 0 0 -NR- (cfs) S193: ______ S191: 19.29 14.41 17 0.0 0.0 0.0 S135 Pumps: 13.42 14.32 0 0 0 0 0 (cfs) S135 Culverts: 0 0.0 0.0 North West Shore S65E: 21.06 14.34 615 0.5 0.5 0.5 0.5 0.5 0.5 S127 Pumps: 13.25 14.42 0 0 0 0 0 0 (cfs) S127 Culvert: 0 0.6 S129 Pumps: 13.06 14.55 31 0 31 0 (cfs) S129 Culvert: 0 0.0 S131 Pumps: 13.10 14.65 0 0 0 (cfs) S131 Culvert: Fisheating Creek nr Palmdale 29.76 47 nr Lakeport ______ C5: ______ 14.52 -NR- -NR- -NR- -NR- South Shore S4 Pumps: 10.71 14.49 0 0 0 0 (cfs) S169: 14.52 10.89 0 0.0 0.0 0.0 S310: ______ -NR- S3 Pumps: 10.29 14.50 0 0 0 0 (cfs) S354: 14.50 10.29 0 0.0 0.0 S2 Pumps: 10.11 14.43 0 0 0 0 0 (cfs) S351: 14.43 10.11 0 0.0 0.0 0.0 S352: 14.58 10.26 0 0.0 0.0 C10A: -NR- 14.33 -NR- -NR- 7.0 -NR- -NR- L8 Canal PT ______ -NR- _________________________________________________________________________ Temporary Pumps S351: 10.11 14.43 0 -NR--NR--NR--NR--NR--NR- S352: 10.26 14.58 0 -NR--NR--NR--NR- S354: 10.29 14.50 0 -NR--NR--NR--NR- _________________________________________________________________________ Caloosahatchee River (S77, S78, S79) S47B: 14.35 10.72 0.0 0.0 S47D: 10.72 10.71 -7 9.9 S77: Spillway and Sector Flow: 14.52 10.90 0 0.0 0.0 0.0 0.0 Flow Due to Lockages+: 5 S77 Below USGS Flow Gage -8 (TESTING) S78: Spillway and Sector Flow: 10.79 2.83 98 0.0 0.0 0.0 0.0 Flow Due to Lockages+: 6 S79: Spillway and Sector Flow: 3.04 1.27 273 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 Flow Due to Lockages+: 3 Percent of flow from S77 0% Chloride (ppm) 58 St. Lucie Canal (S308, S80) S308: Spillway and Sector Flow: 14.40 14.10 0 0.0 0.0 0.0 0.0 Flow Due to Lockages+: 1 S308 Below USGS Flow Gage -NR- S153: 18.89 14.00 47 0.0 0.0 S80: Spillway and Sector Flow: 14.17 0.43 0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 Flow Due to Lockages+: 12 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 0.00 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 0.00 279 4 S78: 0.00 0.00 0.00 114 3 S79: 0.00 0.00 0.00 107 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: 3.92 3.92 4.19 49 2 S80: 0.01 0.01 0.08 90 0 Okeechobee Average 1.96 0.30 0.32 (Sites S78, S79 and S80 not included) ______________________________________________________________________________ Okeechobee Lake Elevations 12 OCT 2009 14.43 Difference from 12OCT09 12OCT09 -1 Day = 11 OCT 2009 14.44 0.01 12OCT09 -2 Days = 10 OCT 2009 14.45 0.02 12OCT09 -3 Days = 09 OCT 2009 14.47 0.04 12OCT09 -4 Days = 08 OCT 2009 14.48 0.05 12OCT09 -5 Days = 07 OCT 2009 14.49 0.06 12OCT09 -6 Days = 06 OCT 2009 14.47 0.04 12OCT09 -7 Days = 05 OCT 2009 14.46 0.03 12OCT09 -30 Days = 12 SEP 2009 14.44 0.01 12OCT09 -1 Year = 12 OCT 2008 15.00 0.57 12OCT09 -2 Year = 12 OCT 2007 10.10 -4.33 ______________________________________________________________________________ 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 12OCT09 Today = 12 OCT 2009 -1194 TUE | -NR- 12OCT09 -1 Day = 11 OCT 2009 -1051 MON | -NR- 12OCT09 -2 Days = 10 OCT 2009 -1129 SUN | -NR- 12OCT09 -3 Days = 09 OCT 2009 -1020 SAT | -NR- 12OCT09 -4 Days = 08 OCT 2009 -762 FRI | -2036 12OCT09 -5 Days = 07 OCT 2009 -589 THU | 4449 12OCT09 -6 Days = 06 OCT 2009 -1009 WED | 2452 12OCT09 -7 Days = 05 OCT 2009 -1324 TUE | -3955 12OCT09 -8 Days = 04 OCT 2009 -1061 MON | 226 12OCT09 -9 Days = 03 OCT 2009 -1204 SUN | -4096 12OCT09 -10 Days = 02 OCT 2009 -842 SAT | -NR- 12OCT09 -11 Days = 01 OCT 2009 -842 FRI | -1876 12OCT09 -12 Days = 30 SEP 2009 -694 THU | -4011 12OCT09 -13 Days = 29 SEP 2009 -142 WED | -1896 ______________________________________________________________________________ ______________________________________________________________________________ S65E Average Flow over previous 14 days | Avg-Daily Flow 12OCT09 Today= 12 OCT 2009 849 TUE | 615 12OCT09 -1 Day = 11 OCT 2009 939 MON | 663 12OCT09 -2 Days = 10 OCT 2009 1030 SUN | 710 12OCT09 -3 Days = 09 OCT 2009 1113 SAT | 85 12OCT09 -4 Days = 08 OCT 2009 1297 FRI | 0 12OCT09 -5 Days = 07 OCT 2009 1510 THU | 335 12OCT09 -6 Days = 06 OCT 2009 1702 WED | 850 12OCT09 -7 Days = 05 OCT 2009 1860 TUE | 697 12OCT09 -8 Days = 04 OCT 2009 2056 MON | 913 12OCT09 -9 Days = 03 OCT 2009 2244 SUN | 855 12OCT09 -10 Days = 02 OCT 2009 2432 SAT | 754 12OCT09 -11 Days = 01 OCT 2009 2623 FRI | 1538 12OCT09 -12 Days = 30 SEP 2009 2754 THU | 1855 12OCT09 -13 Days = 29 SEP 2009 2850 WED | 2013 ______________________________________________________________________________ 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 2009 0 9 97 206 -NR- 2 11 OCT 2009 0 6 202 361 -NR- 1 10 OCT 2009 0 8 206 366 -NR- 1 09 OCT 2009 0 9 311 630 -NR- 3 08 OCT 2009 0 7 558 959 -NR- 5 07 OCT 2009 0 3 351 478 -NR- 4 06 OCT 2009 0 4 0 7 -NR- 116 05 OCT 2009 0 7 174 382 -NR- 3 04 OCT 2009 0 10 385 673 -NR- 2 03 OCT 2009 0 12 334 507 -NR- 3 02 OCT 2009 0 -NR- 390 798 -NR- 3 01 OCT 2009 0 0 609 1179 -NR- 0 30 SEP 2009 0 7 611 1194 -NR- 3 29 SEP 2009 0 4 656 1416 -NR- 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) 12 OCT 2009 547 -NR- 0 0 0 -NR- 11 OCT 2009 141 -NR- 0 0 0 -NR- 10 OCT 2009 81 -NR- 0 0 0 -NR- 09 OCT 2009 575 -NR- 0 0 0 -NR- 08 OCT 2009 1960 -NR- 0 0 0 262 07 OCT 2009 775 -NR- 0 0 0 225 06 OCT 2009 109 -NR- 0 0 0 453 05 OCT 2009 908 -NR- 0 0 278 478 04 OCT 2009 1653 -NR- 0 0 0 447 03 OCT 2009 1064 -NR- 0 0 0 476 02 OCT 2009 1597 -NR- 0 0 0 469 01 OCT 2009 2403 -NR- 0 0 0 479 30 SEP 2009 2067 -NR- 0 0 0 444 29 SEP 2009 3252 -NR- 0 0 0 440 *** 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 13OCT2009 @ 09:42 ** Preliminary Data - Subject to Revision **