U. S. Army Corps of Engineers, Jacksonville District Lake Okeechobee and Vicinity Report Data Ending 2400 hours 25 NOV 2007 _____________________________________________________________________________ Okeechobee Lake Regulation Elevation Last Year 2YRS Ago (ft-NGVD) (ft-NGVD) (ft-NGVD) *Okeechobee Lake Elevation 10.30 12.25 16.83 (Official Elv) Regulation Zone Elevations B= 18.50 C= 17.75 D= 17.00 E= 15.05 25NOV (1965-2006) Period of Record Average 14.99 Difference from POR Average -4.69 Simulated Average LORSS2007 TSP[1965-2000] 13.82 Difference from Average LORSS2007 TSP -3.52 Today Lake Okechobee elevation is determined from the 4 interior stations ++Navigation Depths (Based on 2001 Channel Condition Survey) Route 1 ÷ 4.24' Route 2 ÷ 1.64' Bridge Clearance = 53.29' ______________________________________________________________________________ 4 Interior and 4 Edge Okeechobee Lake Average (Avg-Daily values): (BAD) L001 L005 L006 LZ40 S4 S352 S308 S133 10.21 10.29 10.29 10.41 10.43 10.51 10.31 10.42 *Combination Okeechobee Avg-Daily Lake Average = 10.36 (*See Note) Interior Okeechobee Lake Average (Avg-Daily values): L001 L005 L006 LZ40 10.21 10.29 10.29 10.41 *Interior Okeechobee Avg-Daily Lake Average = 10.30 (*See Note) Okeechobee Lake Average (Avg-Daily values): (BAD) (BAD) (BAD) (BAD) (BAD) C5 S4 S3 S2 S352 S308 S135 S133 S127 S129 10.27 10.43 10.41 10.32 10.51 10.31 10.67 10.42 11.07 10.39 *Edge Okeechobee Avg-Daily Lake Average = 10.48 (*See Note) ______________________________________________________________________________ Okeechobee Inflows (cfs): S65E 341 S191 0 Fisheating Cr -NR- S154 0 S133 Pumps 0 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: 341 Okeechobee Outflows (cfs): S135 Culverts 0 S354 0 S77 0 S127 Culverts -NR- S351 0 S308 (BAD) 0 S129 Culverts 0 S352 -NR- S131 Culverts L8 Canal Pt -22 C5 -NR- Total Outflows: -22 (BAD VALUE) Okeechobee Pan Evaporation (inches): S77 0.07 S308 0.10 Average Pan Evap x 0.75 Pan Coefficient = 0.06" = 0.01' Lake Average Precipitation using NEXRAD: = 0.00" = 0.00' Evaporation - Precipitation: = 0.06" = 0.01' Evaporation - Precipitation using Lake Area of 730 square miles is equal to 1251 cfs out of the lake. Lake Okeechobee (Change in Storage) Flow is 1613 cfs or 3200 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: 12.63 10.39 0 0 0 0 0 0 (cfs) S193: ______ S191: 19.26 10.25 0 0.0 0.0 0.0 S135 Pumps: 12.40 10.66 0 0 0 0 0 (cfs) S135 Culverts: 0 0.0 0.0 North West Shore S65E: 20.95 10.01 341 0.1 0.1 0.1 0.1 0.1 0.1 S127 Pumps: 13.18 -NR- 0 0 0 0 0 0 (cfs) S127 Culvert: -NR- -NR- S129 Pumps: 10.31 10.37 0 0 0 0 (cfs) S129 Culvert: 0 0.0 S131 Pumps: 11.68 10.49 0 0 0 (cfs) S131 Culvert: Fisheating Creek nr Palmdale ______ -NR- nr Lakeport ______ C5: ______ 10.27 -NR- -NR- -NR- -NR- South Shore S4 Pumps: 10.40 10.38 0 0 0 0 (cfs) S169: 10.38 10.54 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: 9.57 10.33 0 0 0 0 0 (cfs) S351: 10.33 9.57 0 0.0 0.0 0.0 S352: ______ -NR- -NR- 0.0 -NR- C10A: -NR- 10.37 -NR- -NR- 8.0 -NR- -NR- L8 Canal PT 10.42 -22 _________________________________________________________________________ Temporary Pumps S351: 9.57 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 10.35 5.7 5.8 S47D: 10.37 10.15 0 0.0 S77: Spillway and Sector Flow: 10.32 10.25 0 0.0 0.0 0.0 0.0 Flow Due to Lockages+: 0 S78: Spillway and Sector Flow: 10.40 3.35 0 0.0 0.0 0.0 0.0 Flow Due to Lockages+: 8 S79: Spillway and Sector Flow: 3.30 1.67 0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 Flow Due to Lockages+: 2 Percent of flow from S77 -NR-% Chloride (ppm) 142 St. Lucie Canal (S308, S80) S308: Spillway and Sector Flow: 10.34 10.21 0 0.0 0.0 0.0 0.0 Flow Due to Lockages+: 0 S308 Below USGS Flow Gage 30 S153: 18.73 10.07 61 0.0 0.0 S80: Spillway and Sector Flow: 10.32 1.38 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) 29 Speedy Point Top Salinity (mg/ml) 18 Speedy Point Bottom Salinity (mg/ml) 16 + 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 38 5 S78: 0.01 0.03 0.03 8 4 S79: 0.00 0.06 0.06 105 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 0.09 0.09 190 4 S80: 0.01 0.04 0.11 29 0 Okeechobee Average 0.00 0.01 0.01 (Sites S78, S79 and S80 not included) ______________________________________________________________________________ Okeechobee Lake Elevations 25 NOV 2007 10.30 Difference from 25NOV07 25NOV07 -1 Day = 24 NOV 2007 10.29 -0.01 25NOV07 -2 Days = 23 NOV 2007 10.29 -0.01 25NOV07 -3 Days = 22 NOV 2007 10.31 0.01 25NOV07 -4 Days = 21 NOV 2007 10.33 0.03 25NOV07 -5 Days = 20 NOV 2007 10.33 0.03 25NOV07 -6 Days = 19 NOV 2007 10.32 0.02 25NOV07 -7 Days = 18 NOV 2007 10.32 0.02 25NOV07 -30 Days = 26 OCT 2007 10.22 -0.08 25NOV07 -1 Year = 25 NOV 2006 12.25 1.95 25NOV07 -2 Year = 25 NOV 2005 16.83 6.53 ______________________________________________________________________________ Long Term Mean 30day Avearge ET for Lake Alfred = 2.49 ______________________________________________________________________________ Lake Okeechobee Net Inflow (LONIN) Average Flow over the previous 14 days | Avg-Daily Flow 25NOV07 Today = 25 NOV 2007 -NR- MON | -NR- 25NOV07 -1 Day = 24 NOV 2007 -NR- SUN | -NR- 25NOV07 -2 Days = 23 NOV 2007 -NR- SAT | -NR- 25NOV07 -3 Days = 22 NOV 2007 -NR- FRI | -NR- 25NOV07 -4 Days = 21 NOV 2007 -NR- THU | -NR- 25NOV07 -5 Days = 20 NOV 2007 -NR- WED | -NR- 25NOV07 -6 Days = 19 NOV 2007 -NR- TUE | -NR- 25NOV07 -7 Days = 18 NOV 2007 -NR- MON | -NR- 25NOV07 -8 Days = 17 NOV 2007 -NR- SUN | -NR- 25NOV07 -9 Days = 16 NOV 2007 -NR- SAT | -NR- 25NOV07 -10 Days = 15 NOV 2007 -5014 FRI | -NR- 25NOV07 -11 Days = 14 NOV 2007 -3099 THU | -NR- 25NOV07 -12 Days = 13 NOV 2007 -2676 WED | -NR- 25NOV07 -13 Days = 12 NOV 2007 -1279 TUE | -NR- ______________________________________________________________________________ ______________________________________________________________________________ S65-E Average Flow over previous 14 days | Avg-Daily Flow 25NOV07 Today= 25 NOV 2007 327 MON | 341 25NOV07 -1 Day = 24 NOV 2007 310 SUN | 358 25NOV07 -2 Days = 23 NOV 2007 315 SAT | 516 25NOV07 -3 Days = 22 NOV 2007 328 FRI | 724 25NOV07 -4 Days = 21 NOV 2007 333 THU | 296 25NOV07 -5 Days = 20 NOV 2007 373 WED | 67 25NOV07 -6 Days = 19 NOV 2007 435 TUE | 247 25NOV07 -7 Days = 18 NOV 2007 473 MON | 324 25NOV07 -8 Days = 17 NOV 2007 515 SUN | 431 25NOV07 -9 Days = 16 NOV 2007 527 SAT | 516 25NOV07 -10 Days = 15 NOV 2007 529 FRI | 109 25NOV07 -11 Days = 14 NOV 2007 540 THU | 211 25NOV07 -12 Days = 13 NOV 2007 594 WED | 434 25NOV07 -13 Days = 12 NOV 2007 623 TUE | 0 ______________________________________________________________________________ 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) 25 NOV 2007 0 0 0 16 60 0 24 NOV 2007 83 357 0 15 1 -NR- 23 NOV 2007 671 1142 214 397 33 -NR- 22 NOV 2007 835 1437 363 621 67 2132 21 NOV 2007 514 724 130 215 40 1801 20 NOV 2007 0 2 0 17 -5 605 19 NOV 2007 0 1 0 14 -219 510 18 NOV 2007 6 188 0 120 -156 -403 17 NOV 2007 457 633 161 285 -485 -2411 16 NOV 2007 149 204 141 210 -643 -2925 15 NOV 2007 0 1 0 12 -535 -2932 14 NOV 2007 0 1 0 28 -616 -2793 13 NOV 2007 0 2 0 18 -391 -1680 12 NOV 2007 0 1 0 11 -237 -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) 25 NOV 2007 4 -NR- 0 -NR- 0 -44 24 NOV 2007 4 -NR- 0 -NR- 0 -9 23 NOV 2007 2 -NR- 0 -NR- 0 -6 22 NOV 2007 3 -NR- 0 -NR- 0 -17 21 NOV 2007 3 -NR- 0 -NR- 0 -11 20 NOV 2007 5 -NR- 0 -NR- 0 -544 19 NOV 2007 4 -NR- 0 -NR- 0 -1299 18 NOV 2007 4 -NR- 0 -NR- 0 -1294 17 NOV 2007 4 -NR- 0 -NR- 0 -1310 16 NOV 2007 5 -NR- 0 -NR- 0 -1311 15 NOV 2007 4 -NR- 0 -NR- 0 -1388 14 NOV 2007 4 -NR- 0 -NR- 0 -1443 13 NOV 2007 4 -NR- 0 -NR- 0 -1435 12 NOV 2007 5 -NR- 0 -NR- 0 -1357 *** 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 26NOV2007 @ 13:15 ** Preliminary Data - Subject to Revision **