U. S. Army Corps of Engineers, Jacksonville District Lake Okeechobee and Vicinity Report Data Ending 2400 hours 18 NOV 2007 _____________________________________________________________________________ Okeechobee Lake Regulation Elevation Last Year 2YRS Ago (ft-NGVD) (ft-NGVD) (ft-NGVD) *Okeechobee Lake Elevation 10.32 12.42 16.86 (Official Elv) Regulation Zone Elevations B= 18.50 C= 17.75 D= 17.00 E= 15.11 18NOV (1965-2006) Period of Record Average 15.04 Difference from POR Average -4.72 Simulated Average LORSS2007 TSP[1965-2000] 13.86 Difference from Average LORSS2007 TSP -3.54 Today Lake Okechobee elevation is determined from the 4 interior stations ++Navigation Depths (Based on 2001 Channel Condition Survey) Route 1 ÷ 4.26' Route 2 ÷ 1.66' Bridge Clearance = 52.92' ______________________________________________________________________________ 4 Interior and 4 Edge Okeechobee Lake Average (Avg-Daily values): (BAD) L001 L005 L006 LZ40 S4 S352 S308 S133 10.18 10.28 10.36 10.44 10.50 10.57 10.35 10.37 *Combination Okeechobee Avg-Daily Lake Average = 10.38 (*See Note) Interior Okeechobee Lake Average (Avg-Daily values): L001 L005 L006 LZ40 10.18 10.28 10.36 10.44 *Interior Okeechobee Avg-Daily Lake Average = 10.32 (*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 10.50 10.54 10.45 10.57 10.35 10.67 10.37 11.15 10.58 *Edge Okeechobee Avg-Daily Lake Average = 10.55 (*See Note) ______________________________________________________________________________ Okeechobee Inflows (cfs): S65E 324 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: 324 Okeechobee Outflows (cfs): S135 Culverts 0 S354 0 S77 95 S127 Culverts -NR- S351 0 S308 (BAD) -203 S129 Culverts 0 S352 -NR- S131 Culverts L8 Canal Pt -652 C5 -NR- Total Outflows: -761 (BAD VALUE) Okeechobee Pan Evaporation (inches): S77 0.12 S308 0.16 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 2061 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: 12.59 10.30 0 0 0 0 0 0 (cfs) S193: ______ S191: 19.57 10.19 0 0.0 0.0 0.0 S135 Pumps: 12.83 10.67 0 0 0 0 0 (cfs) S135 Culverts: 0 0.0 0.0 North West Shore S65E: 21.04 9.93 324 0.1 0.1 0.1 0.1 0.1 0.1 S127 Pumps: 13.33 -NR- 0 0 0 0 0 0 (cfs) S127 Culvert: -NR- -NR- S129 Pumps: 10.30 10.56 0 0 0 0 (cfs) S129 Culvert: 0 0.0 S131 Pumps: 11.78 10.71 0 0 0 (cfs) S131 Culvert: Fisheating Creek nr Palmdale ______ -NR- nr Lakeport ______ C5: ______ 10.27 -NR- -NR- -NR- -NR- South Shore S4 Pumps: 10.55 10.48 0 0 0 0 (cfs) S169: 10.50 10.71 0 0.0 0.0 0.0 S310: ______ -NR- S3 Pumps: 9.33 10.52 0 0 0 0 (cfs) S354: 10.52 9.33 0 0.0 0.0 S2 Pumps: 9.77 10.45 0 0 0 0 0 (cfs) S351: 10.45 9.77 0 0.0 0.0 0.0 S352: ______ -NR- -NR- 0.0 -NR- C10A: -NR- 11.45 -NR- -NR- 8.0 -NR- -NR- L8 Canal PT 11.64 -652 _________________________________________________________________________ Temporary Pumps S351: 9.77 10.45 0 -NR--NR--NR--NR--NR--NR- S352: -NR- ______ -NR- -NR--NR--NR--NR- S354: 9.33 10.52 0 -NR--NR--NR--NR- _________________________________________________________________________ Caloosahatchee River (S77, S78, S79) S47B: 10.28 10.38 5.7 5.8 S47D: 10.38 9.60 0 0.0 S77: Spillway and Sector Flow: 10.30 9.67 94 0.0 0.0 0.0 0.0 Flow Due to Lockages+: 1 S78: Spillway and Sector Flow: 10.18 3.07 37 0.0 0.0 0.0 0.0 Flow Due to Lockages+: 24 S79: Spillway and Sector Flow: -NR- -NR- -NR- -NR- -NR- -NR- -NR- -NR- -NR- -NR- -NR- Flow Due to Lockages+: -NR- Percent of flow from S77 -NR-% Chloride (ppm) -N St. Lucie Canal (S308, S80) S308: Spillway and Sector Flow: 10.33 10.58 -203 0.0 0.0 0.0 0.0 Flow Due to Lockages+: -0 S308 Below USGS Flow Gage -79 S153: 18.71 10.49 79 0.0 0.0 S80: Spillway and Sector Flow: 10.73 -0.02 0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 Flow Due to Lockages+: 6 Percent of flow from S308 -NR-% Steele Point Top Salinity (mg/ml) 26 Steele Point Bottom Salinity (mg/ml) 24 Speedy Point Top Salinity (mg/ml) 14 Speedy Point Bottom Salinity (mg/ml) 14 + 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: 0.00 0.00 0.20 S193: -NR- 0.00 0.00 -NR- -NR- Okeechobee Field Station: 0.00 0.00 0.07 S135 Pump Station: 0.00 0.00 0.16 S127 Pump Station: 0.00 0.00 0.23 S129 Pump Station: 0.00 0.00 0.03 S131 Pump Station: 0.00 0.00 0.04 S77: 0.00 0.00 0.05 331 0 S78: 0.01 0.01 0.01 74 0 S79: -NR- 0.00 0.00 -NR- -NR- S4 Pump Station: -NR- 0.00 0.00 Clewiston Field Station: 0.00 0.00 0.02 S3 Pump Station: 0.00 0.00 0.02 S2 Pump Station: 0.00 0.00 0.00 S308: 0.00 0.00 0.45 160 0 S80: 0.00 0.00 5.49 9 0 Okeechobee Average 0.00 0.00 0.10 (Sites S78, S79 and S80 not included) ______________________________________________________________________________ Okeechobee Lake Elevations 18 NOV 2007 10.32 Difference from 18NOV07 18NOV07 -1 Day = 17 NOV 2007 10.31 -0.01 18NOV07 -2 Days = 16 NOV 2007 10.29 -0.03 18NOV07 -3 Days = 15 NOV 2007 10.35 0.03 18NOV07 -4 Days = 14 NOV 2007 10.35 0.03 18NOV07 -5 Days = 13 NOV 2007 10.34 0.02 18NOV07 -6 Days = 12 NOV 2007 10.33 0.01 18NOV07 -7 Days = 11 NOV 2007 10.33 0.01 18NOV07 -30 Days = 19 OCT 2007 10.11 -0.21 18NOV07 -1 Year = 18 NOV 2006 12.42 2.10 18NOV07 -2 Year = 18 NOV 2005 16.86 6.54 ______________________________________________________________________________ Long Term Mean 30day Avearge ET for Lake Alfred = 2.70 ______________________________________________________________________________ Lake Okeechobee Net Inflow (LONIN) Average Flow over the previous 14 days | Avg-Daily Flow 18NOV07 Today = 18 NOV 2007 -NR- MON | -NR- 18NOV07 -1 Day = 17 NOV 2007 -NR- SUN | -NR- 18NOV07 -2 Days = 16 NOV 2007 -NR- SAT | -NR- 18NOV07 -3 Days = 15 NOV 2007 -5014 FRI | -NR- 18NOV07 -4 Days = 14 NOV 2007 -3099 THU | -NR- 18NOV07 -5 Days = 13 NOV 2007 -2676 WED | -NR- 18NOV07 -6 Days = 12 NOV 2007 -1279 TUE | -NR- 18NOV07 -7 Days = 11 NOV 2007 -1115 MON | -NR- 18NOV07 -8 Days = 10 NOV 2007 -1084 SUN | -NR- 18NOV07 -9 Days = 09 NOV 2007 -596 SAT | -NR- 18NOV07 -10 Days = 08 NOV 2007 -596 FRI | -NR- 18NOV07 -11 Days = 07 NOV 2007 -596 THU | -NR- 18NOV07 -12 Days = 06 NOV 2007 -596 WED | -NR- 18NOV07 -13 Days = 05 NOV 2007 -596 TUE | -NR- ______________________________________________________________________________ ______________________________________________________________________________ S65-E Average Flow over previous 14 days | Avg-Daily Flow 18NOV07 Today= 18 NOV 2007 472 MON | 324 18NOV07 -1 Day = 17 NOV 2007 515 SUN | 440 18NOV07 -2 Days = 16 NOV 2007 526 SAT | 502 18NOV07 -3 Days = 15 NOV 2007 529 FRI | 105 18NOV07 -4 Days = 14 NOV 2007 540 THU | 228 18NOV07 -5 Days = 13 NOV 2007 592 WED | 416 18NOV07 -6 Days = 12 NOV 2007 623 TUE | 0 18NOV07 -7 Days = 11 NOV 2007 707 MON | 106 18NOV07 -8 Days = 10 NOV 2007 752 SUN | 430 18NOV07 -9 Days = 09 NOV 2007 774 SAT | 696 18NOV07 -10 Days = 08 NOV 2007 791 FRI | 800 18NOV07 -11 Days = 07 NOV 2007 819 THU | 854 18NOV07 -12 Days = 06 NOV 2007 856 WED | 937 18NOV07 -13 Days = 05 NOV 2007 894 TUE | 769 ______________________________________________________________________________ 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) 18 NOV 2007 6 188 0 120 -156 -403 17 NOV 2007 457 633 161 285 -485 -2411 16 NOV 2007 168 204 161 210 -643 -2925 15 NOV 2007 0 1 0 12 -535 -2932 14 NOV 2007 -NR- -NR- 0 28 -616 -2793 13 NOV 2007 0 2 0 18 -391 -1680 12 NOV 2007 0 1 0 11 -237 -1 11 NOV 2007 0 1 0 26 -11 -0 10 NOV 2007 0 41 0 75 -36 -0 09 NOV 2007 7 27 14 61 -83 -0 08 NOV 2007 0 1 0 14 -259 -1 07 NOV 2007 0 0 0 14 -40 -1 06 NOV 2007 0 -0 0 43 -303 -1650 05 NOV 2007 0 -NR- 0 19 -421 -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) 18 NOV 2007 -NR- -NR- 0 -NR- 0 -1294 17 NOV 2007 -NR- -NR- 0 -NR- 0 -1310 16 NOV 2007 -NR- -NR- 0 -NR- 0 -1311 15 NOV 2007 -NR- -NR- 0 -NR- 0 -1388 14 NOV 2007 -NR- -NR- 0 -NR- 0 -1443 13 NOV 2007 -NR- -NR- 0 -NR- 0 -1435 12 NOV 2007 -NR- -NR- 0 -NR- 0 -1357 11 NOV 2007 -NR- -NR- 0 -NR- 0 -1397 10 NOV 2007 -NR- -NR- 0 -NR- 0 -1406 09 NOV 2007 -NR- -NR- 0 -NR- 0 -1447 08 NOV 2007 -NR- -NR- 0 -NR- 0 -1421 07 NOV 2007 -NR- -NR- 0 -NR- 0 -1522 06 NOV 2007 -NR- -NR- 0 -NR- 0 -1463 05 NOV 2007 333 -NR- 0 -NR- 0 -1511 *** 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 19NOV2007 @ 13:15 ** Preliminary Data - Subject to Revision **