U. S. Army Corps of Engineers, Jacksonville District Lake Okeechobee and Vicinity Report Data Ending 2400 hours 09 DEC 2007 _____________________________________________________________________________ Okeechobee Lake Regulation Elevation Last Year 2YRS Ago (ft-NGVD) (ft-NGVD) (ft-NGVD) *Okeechobee Lake Elevation 10.19 12.08 16.40 (Official Elv) Regulation Zone Elevations B= 18.50 C= 17.75 D= 17.00 E= 14.94 09DEC (1965-2006) Period of Record Average 14.86 Difference from POR Average -4.67 Simulated Average LORSS2007 TSP[1965-2000] 13.68 Difference from Average LORSS2007 TSP -3.49 Today Lake Okechobee elevation is determined from the 4 interior stations ++Navigation Depths (Based on 2001 Channel Condition Survey) Route 1 ÷ 4.13' Route 2 ÷ 1.53' Bridge Clearance = 53.04' ______________________________________________________________________________ 4 Interior and 4 Edge Okeechobee Lake Average (Avg-Daily values): (BAD) L001 L005 L006 LZ40 S4 S352 S308 S133 10.05 10.20 10.21 10.29 10.40 10.40 10.16 10.24 *Combination Okeechobee Avg-Daily Lake Average = 10.25 (*See Note) Interior Okeechobee Lake Average (Avg-Daily values): L001 L005 L006 LZ40 10.05 10.20 10.21 10.29 *Interior Okeechobee Avg-Daily Lake Average = 10.19 (*See Note) Okeechobee Lake Average (Avg-Daily values): (BAD) (BAD) (BAD) (BAD) (BAD) C5 S4 S3 S2 S352 S308 S135 S133 S127 S129 10.22 10.40 10.40 10.29 10.40 10.16 10.50 10.24 11.05 10.20 *Edge Okeechobee Avg-Daily Lake Average = 10.39 (*See Note) ______________________________________________________________________________ Okeechobee Inflows (cfs): S65E 334 S191 0 Fisheating Cr -NR- S154 0 S133 Pumps 0 S135 Pumps 0 S84 0 S127 Pumps 0 S2 Pumps 0 S71 -NR- S129 Pumps 0 S3 Pumps 0 S72 -NR- S131 Pumps 0 S4 Pumps 0 Total Inflows: 334 Okeechobee Outflows (cfs): S135 Culverts 0 S354 0 S77 130 S127 Culverts -NR- S351 0 S308 (BAD) -0 S129 Culverts 0 S352 -NR- S131 Culverts L8 Canal Pt -5 C5 -NR- Total Outflows: 124 (BAD VALUE) Okeechobee Pan Evaporation (inches): S77 0.12 S308 0.18 Average Pan Evap x 0.75 Pan Coefficient = 0.11" = 0.01' Lake Average Precipitation using NEXRAD: = 0.00" = 0.00' Evaporation - Precipitation: = 0.11" = 0.01' Evaporation - Precipitation using Lake Area of 730 square miles is equal to 2208 cfs out of the lake. Lake Okeechobee (Change in Storage) Flow is 1664 cfs or 3300 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: 12.33 10.16 0 0 0 0 0 0 (cfs) S193: ______ S191: 19.43 10.07 0 0.0 0.0 0.0 S135 Pumps: 11.79 10.49 0 0 0 0 0 (cfs) S135 Culverts: 0 0.0 0.0 North West Shore S65E: 20.93 9.76 334 0.2 0.2 0.0 0.0 0.0 13.0 S127 Pumps: 12.92 -NR- 0 0 0 0 0 0 (cfs) S127 Culvert: -NR- -NR- S129 Pumps: 10.21 10.20 0 0 0 0 (cfs) S129 Culvert: 0 0.0 S131 Pumps: 11.36 10.09 0 0 0 (cfs) S131 Culvert: Fisheating Creek nr Palmdale ______ -NR- nr Lakeport ______ C5: ______ 10.22 -NR- -NR- -NR- -NR- South Shore S4 Pumps: 10.14 10.41 0 0 0 0 (cfs) S169: 10.44 10.30 0 0.0 0.0 0.0 S310: ______ -NR- S3 Pumps: 9.24 10.41 0 0 0 0 (cfs) S354: 10.41 9.24 0 0.0 0.0 S2 Pumps: 9.77 10.33 0 0 0 0 0 (cfs) S351: 10.33 9.77 0 -NR- -NR- -NR- S352: ______ -NR- -NR- -NR- -NR- C10A: -NR- 10.17 -NR- -NR- 8.0 -NR- -NR- L8 Canal PT 10.19 -5 _________________________________________________________________________ Temporary Pumps S351: 9.77 10.33 0 -NR--NR--NR--NR--NR--NR- S352: -NR- ______ -NR- -NR--NR--NR--NR- S354: 9.24 10.41 0 -NR--NR--NR--NR- _________________________________________________________________________ Caloosahatchee River (S77, S78, S79) S47B: 10.28 10.30 5.7 5.8 S47D: 10.37 10.20 0 0.0 S77: Spillway and Sector Flow: 10.36 10.31 130 0.7 1.0 1.0 0.7 Flow Due to Lockages+: 0 S78: Spillway and Sector Flow: 10.15 3.15 0 0.0 0.0 0.0 0.0 Flow Due to Lockages+: 9 S79: Spillway and Sector Flow: 3.12 1.26 0 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 -NR-% Chloride (ppm) 140 St. Lucie Canal (S308, S80) S308: Spillway and Sector Flow: 10.20 10.46 0 0.0 0.0 0.0 0.0 Flow Due to Lockages+: -0 S308 Below USGS Flow Gage -NR- S153: 19.05 10.31 -NR- -NR- 0.0 S80: Spillway and Sector Flow: 10.56 0.40 0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 Flow Due to Lockages+: 4 Percent of flow from S308 -NR-% Steele Point Top Salinity (mg/ml) 32 Steele Point Bottom Salinity (mg/ml) 30 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 0.00 271 3 S78: 0.01 0.01 0.04 75 3 S79: 0.00 0.02 0.02 43 2 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 0.12 0.12 154 4 S80: 0.00 0.00 0.00 24 0 Okeechobee Average 0.00 0.01 0.01 (Sites S78, S79 and S80 not included) ______________________________________________________________________________ Okeechobee Lake Elevations 09 DEC 2007 10.19 Difference from 09DEC07 09DEC07 -1 Day = 08 DEC 2007 10.18 -0.01 09DEC07 -2 Days = 07 DEC 2007 10.19 0.00 09DEC07 -3 Days = 06 DEC 2007 10.20 0.01 09DEC07 -4 Days = 05 DEC 2007 10.19 0.00 09DEC07 -5 Days = 04 DEC 2007 10.21 0.02 09DEC07 -6 Days = 03 DEC 2007 10.23 0.04 09DEC07 -7 Days = 02 DEC 2007 10.26 0.07 09DEC07 -30 Days = 09 NOV 2007 10.32 0.13 09DEC07 -1 Year = 09 DEC 2006 12.08 1.89 09DEC07 -2 Year = 09 DEC 2005 16.40 6.21 ______________________________________________________________________________ Long Term Mean 30day Avearge ET for Lake Alfred = 2.24 ______________________________________________________________________________ Lake Okeechobee Net Inflow (LONIN) Average Flow over the previous 14 days | Avg-Daily Flow 09DEC07 Today = 09 DEC 2007 -NR- MON | -NR- 09DEC07 -1 Day = 08 DEC 2007 -NR- SUN | -NR- 09DEC07 -2 Days = 07 DEC 2007 -NR- SAT | -NR- 09DEC07 -3 Days = 06 DEC 2007 -NR- FRI | -NR- 09DEC07 -4 Days = 05 DEC 2007 -NR- THU | -NR- 09DEC07 -5 Days = 04 DEC 2007 -NR- WED | -NR- 09DEC07 -6 Days = 03 DEC 2007 -NR- TUE | -NR- 09DEC07 -7 Days = 02 DEC 2007 -NR- MON | -NR- 09DEC07 -8 Days = 01 DEC 2007 -NR- SUN | -NR- 09DEC07 -9 Days = 30 NOV 2007 -NR- SAT | -NR- 09DEC07 -10 Days = 29 NOV 2007 -NR- FRI | -NR- 09DEC07 -11 Days = 28 NOV 2007 -NR- THU | -NR- 09DEC07 -12 Days = 27 NOV 2007 -NR- WED | -NR- 09DEC07 -13 Days = 26 NOV 2007 -NR- TUE | -NR- ______________________________________________________________________________ ______________________________________________________________________________ S65-E Average Flow over previous 14 days | Avg-Daily Flow 09DEC07 Today= 09 DEC 2007 282 MON | 334 09DEC07 -1 Day = 08 DEC 2007 282 SUN | 223 09DEC07 -2 Days = 07 DEC 2007 292 SAT | 0 09DEC07 -3 Days = 06 DEC 2007 328 FRI | 254 09DEC07 -4 Days = 05 DEC 2007 362 THU | 660 09DEC07 -5 Days = 04 DEC 2007 337 WED | 224 09DEC07 -6 Days = 03 DEC 2007 325 TUE | 122 09DEC07 -7 Days = 02 DEC 2007 334 MON | 492 09DEC07 -8 Days = 01 DEC 2007 322 SUN | 512 09DEC07 -9 Days = 30 NOV 2007 316 SAT | 117 09DEC07 -10 Days = 29 NOV 2007 345 FRI | 0 09DEC07 -11 Days = 28 NOV 2007 353 THU | 183 09DEC07 -12 Days = 27 NOV 2007 355 WED | 540 09DEC07 -13 Days = 26 NOV 2007 347 TUE | 284 ______________________________________________________________________________ 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) 09 DEC 2007 140 258 0 18 -NR- -1 08 DEC 2007 276 457 0 12 -10 -0 07 DEC 2007 325 540 0 10 -234 -0 06 DEC 2007 291 485 0 11 -73 -0 05 DEC 2007 134 183 0 11 -107 -1 04 DEC 2007 0 1 0 18 -92 -1 03 DEC 2007 0 -NR- 0 22 -197 -819 02 DEC 2007 0 20 0 8 -391 -2127 01 DEC 2007 199 386 0 22 -336 -1508 30 NOV 2007 239 433 0 22 -61 -0 29 NOV 2007 226 417 0 12 -106 -286 28 NOV 2007 116 -NR- 0 14 128 1460 27 NOV 2007 234 314 0 8 496 2155 26 NOV 2007 14 0 0 10 75 1 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) 09 DEC 2007 5 -NR- 0 -NR- 0 -11 08 DEC 2007 2 -NR- 0 -NR- 0 -NR- 07 DEC 2007 3 -NR- 0 -NR- 0 -NR- 06 DEC 2007 4 -NR- 0 -NR- 0 -NR- 05 DEC 2007 4 -NR- 36 -NR- 0 -NR- 04 DEC 2007 5 -NR- 56 -NR- 0 -5 03 DEC 2007 5 -NR- 0 -NR- 9 -18 02 DEC 2007 4 -NR- 0 -NR- 0 -26 01 DEC 2007 7 -NR- 0 -NR- 0 -25 30 NOV 2007 3 -NR- 0 -NR- 0 -6 29 NOV 2007 4 -NR- 0 -NR- 0 -26 28 NOV 2007 4 -NR- 0 -NR- 0 -13 27 NOV 2007 3 -NR- 0 -NR- 0 -25 26 NOV 2007 2 -NR- 0 -NR- 0 -51 *** 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 10DEC2007 @ 14:15 ** Preliminary Data - Subject to Revision **