U. S. Army Corps of Engineers, Jacksonville District Lake Okeechobee and Vicinity Report Data Ending 2400 hours 08 JUL 2007 _____________________________________________________________________________ Okeechobee Lake Regulation Elevation Last Year 2YRS Ago (ft-NGVD) (ft-NGVD) (ft-NGVD) *Okeechobee Lake Elevation 9.05 12.13 16.34 (Official Elv) Regulation Zone Elevations B= 17.17 C= 16.67 D= 15.76 E= 14.02 08JUL (1965-2006) Period of Record Average 13.63 Difference from POR Average -4.58 Simulated Average LORSS2007 TSP[1965-2000] 12.40 Difference from Average LORSS2007 TSP -3.35 Today Lake Okechobee elevation is determined from the 4 interior stations ++Navigation Depths (Based on 2001 Channel Condition Survey) Route 1 ÷ 2.99' Route 2 ÷ 0.39' Bridge Clearance = 53.66' ______________________________________________________________________________ 4 Interior and 4 Edge Okeechobee Lake Average (Avg-Daily values): (BAD) L001 L005 L006 LZ40 S4 S352 S308 S133 9.03 9.01 9.03 9.15 9.41 9.29 9.14 9.26 *Combination Okeechobee Avg-Daily Lake Average = 9.17 (*See Note) Interior Okeechobee Lake Average (Avg-Daily values): L001 L005 L006 LZ40 9.03 9.01 9.03 9.15 *Interior Okeechobee Avg-Daily Lake Average = 9.05 (*See Note) Okeechobee Lake Average (Avg-Daily values): (BAD) (BAD) (BAD) (BAD) (BAD) C5 S4 S3 S2 S352 S308 S135 S133 S127 S129 9.70 9.41 10.04 9.97 9.29 9.14 9.69 9.26 11.02 12.44 *Edge Okeechobee Avg-Daily Lake Average = 10.00 (*See Note) ______________________________________________________________________________ Okeechobee Inflows (cfs): S65E 0 S191 66 Fisheating Cr 204 S154 0 S133 Pumps 0 S135 Pumps 0 S84 91 S127 Pumps 0 S2 Pumps 0 S71 1035 S129 Pumps 0 S3 Pumps 0 S72 261 S131 Pumps 0 S4 Pumps 0 Total Inflows: 1657 Okeechobee Outflows (cfs): S135 Culverts 0 S354 0 S77 -1096 S127 Culverts -NR- S351 0 S308 (BAD) -NR- S129 Culverts 0 S352 0 S131 Culverts L8 Canal Pt -401 C5 -NR- Total Outflows: No Report Due To Missing S77 or S308 Discharge Data Okeechobee Pan Evaporation (inches): S77 0.18 S308 0.25 Average Pan Evap x 0.75 Pan Coefficient = 0.16" = 0.01' Lake Average Precipitation using NEXRAD: = 0.28" = 0.02' Evaporation - Precipitation: = -0.12" = -0.01' Evaporation - Precipitation using Lake Area of 730 square miles is equal to 2331 cfs into the lake. Lake Okeechobee (Change in Storage) Flow is 3126 cfs or 6200 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: 9.28 9.36 0 0 0 0 0 0 (cfs) S193: ______ S191: 19.04 10.06 66 0.0 0.0 0.0 S135 Pumps: 9.71 9.73 0 0 0 0 0 (cfs) S135 Culverts: 0 0.0 6.1 North West Shore S65E: 20.97 8.94 0 0.0 0.0 0.0 0.0 0.0 0.0 S127 Pumps: 11.22 11.05 0 0 0 0 0 0 (cfs) S127 Culvert: -NR- -NR- S129 Pumps: 11.95 12.43 0 0 0 0 (cfs) S129 Culvert: 0 0.0 S131 Pumps: 12.34 11.69 0 0 0 (cfs) S131 Culvert: Fisheating Creek nr Palmdale 31.95 204 nr Lakeport ______ C5: ______ 9.70 -NR- -NR- -NR- -NR- South Shore S4 Pumps: 9.85 9.44 0 0 0 0 (cfs) S169: 9.31 9.93 0 0.0 0.0 0.0 S310: ______ -NR- S3 Pumps: 10.64 10.03 0 0 0 0 (cfs) S354: 10.03 10.64 0 -NR- -NR- S2 Pumps: 9.81 9.98 0 0 0 0 0 (cfs) S351: 9.98 9.81 0 -NR- -NR- -NR- S352: 9.26 11.02 0 -NR- -NR- C10A: -NR- 10.39 -NR- -NR- 8.0 -NR- -NR- L8 Canal PT 10.56 -401 _________________________________________________________________________ Temporary Pumps S351: 9.81 9.98 0 -NR--NR--NR--NR--NR--NR- S352: 11.02 9.26 0 -NR--NR--NR--NR- S354: 10.64 10.03 0 -NR--NR--NR--NR- _________________________________________________________________________ Caloosahatchee River (S77, S78, S79) S47B: 11.34 10.27 6.0 6.0 S47D: 11.41 11.13 34 1.0 S77: Spillway and Sector Flow: 9.45 11.17 -1096 1.5 2.0 2.0 1.5 Flow Due to Lockages+: 0 S78: Spillway and Sector Flow: 11.20 3.01 0 0.0 0.0 0.0 0.0 Flow Due to Lockages+: 0 S79: Spillway and Sector Flow: 3.19 1.09 728 0.0 0.5 0.5 0.5 0.5 0.5 0.5 0.0 Flow Due to Lockages+: 1 Percent of flow from S77 -151% Chloride (ppm) 114 St. Lucie Canal (S308, S80) S308: Spillway and Sector Flow: 9.13 9.84 -NR- 1.5 1.5 1.5 1.5 Flow Due to Lockages+: 0 S308 Below USGS Flow Gage -647 S153: 19.07 9.72 18 0.0 0.0 S80: Spillway and Sector Flow: 9.98 -0.19 0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 Flow Due to Lockages+: 0 Percent of flow from S308 -NR-% Steele Point Top Salinity (mg/ml) 17 Steele Point Bottom Salinity (mg/ml) 22 Speedy Point Top Salinity (mg/ml) 19 Speedy Point Bottom Salinity (mg/ml) 17 + 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 0.31 4.31 S193: -NR- 0.00 0.00 -NR- -NR- Okeechobee Field Station: 0.00 0.14 4.67 S135 Pump Station: 0.00 0.52 2.01 S127 Pump Station: 0.00 0.51 3.70 S129 Pump Station: 0.21 1.04 3.80 S131 Pump Station: 0.79 1.38 4.63 S77: 0.34 6.68 13.55 71 4 S78: 0.24 4.23 20.41 41 0 S79: 0.20 3.01 5.39 170 0 S4 Pump Station: -NR- 0.00 0.00 Clewiston Field Station: 0.00 0.81 1.14 S3 Pump Station: 0.01 1.46 1.49 S2 Pump Station: 0.03 0.65 1.91 S308: 0.00 0.24 0.53 190 6 S80: 0.86 0.90 4.73 166 0 Okeechobee Average 0.13 1.06 3.21 (Sites S78, S79 and S80 not included) ______________________________________________________________________________ Okeechobee Lake Elevations 08 JUL 2007 9.05 Difference from 08JUL07 08JUL07 -1 Day = 07 JUL 2007 9.03 -0.02 08JUL07 -2 Days = 06 JUL 2007 8.96 -0.09 08JUL07 -3 Days = 05 JUL 2007 8.92 -0.13 08JUL07 -4 Days = 04 JUL 2007 8.87 -0.18 08JUL07 -5 Days = 03 JUL 2007 8.83 -0.22 08JUL07 -6 Days = 02 JUL 2007 8.82 -0.23 08JUL07 -7 Days = 01 JUL 2007 8.83 -0.22 08JUL07 -30 Days = 08 JUN 2007 9.00 -0.05 08JUL07 -1 Year = 08 JUL 2006 12.13 3.08 08JUL07 -2 Year = 08 JUL 2005 16.34 7.29 ______________________________________________________________________________ Long Term Mean 30day Avearge ET for Lake Alfred = 4.56 ______________________________________________________________________________ Lake Okeechobee Net Inflow (LONIN) Average Flow over the previous 14 days | Avg-Daily Flow 08JUL07 Today = 08 JUL 2007 -2624 MON | -NR- 08JUL07 -1 Day = 07 JUL 2007 -2624 SUN | 5403 08JUL07 -2 Days = 06 JUL 2007 -3771 SAT | 5 08JUL07 -3 Days = 05 JUL 2007 -4300 FRI | 1282 08JUL07 -4 Days = 04 JUL 2007 -5440 THU | -NR- 08JUL07 -5 Days = 03 JUL 2007 -5802 WED | -4573 08JUL07 -6 Days = 02 JUL 2007 -5856 TUE | -5687 08JUL07 -7 Days = 01 JUL 2007 -5557 MON | -NR- 08JUL07 -8 Days = 30 JUN 2007 -5359 SUN | -5742 08JUL07 -9 Days = 29 JUN 2007 -5311 SAT | -7204 08JUL07 -10 Days = 28 JUN 2007 -5041 FRI | -NR- 08JUL07 -11 Days = 27 JUN 2007 -5041 THU | -4479 08JUL07 -12 Days = 26 JUN 2007 -5134 WED | -NR- 08JUL07 -13 Days = 25 JUN 2007 -5134 TUE | -NR- ______________________________________________________________________________ ______________________________________________________________________________ S65-E Average Flow over previous 14 days | Avg-Daily Flow 08JUL07 Today= 08 JUL 2007 0 MON | 0 08JUL07 -1 Day = 07 JUL 2007 0 SUN | 0 08JUL07 -2 Days = 06 JUL 2007 0 SAT | 0 08JUL07 -3 Days = 05 JUL 2007 0 FRI | 0 08JUL07 -4 Days = 04 JUL 2007 0 THU | 0 08JUL07 -5 Days = 03 JUL 2007 0 WED | 0 08JUL07 -6 Days = 02 JUL 2007 0 TUE | 0 08JUL07 -7 Days = 01 JUL 2007 0 MON | 0 08JUL07 -8 Days = 30 JUN 2007 0 SUN | 0 08JUL07 -9 Days = 29 JUN 2007 0 SAT | 0 08JUL07 -10 Days = 28 JUN 2007 0 FRI | 0 08JUL07 -11 Days = 27 JUN 2007 0 THU | 0 08JUL07 -12 Days = 26 JUN 2007 0 WED | 0 08JUL07 -13 Days = 25 JUN 2007 0 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) 08 JUL 2007 -1312 -2173 0 0 -1283 -NR- 07 JUL 2007 -949 -1822 0 0 -1809 -9159 06 JUL 2007 -1181 -1991 0 0 -2023 -10397 05 JUL 2007 -1216 -2046 0 0 -2614 -10908 04 JUL 2007 -1211 -1836 0 0 -3145 -NR- 03 JUL 2007 -769 -1262 0 0 -1701 -10906 02 JUL 2007 -298 -420 0 -NR- -463 -7758 01 JUL 2007 0 0 0 -NR- -307 -NR- 30 JUN 2007 0 0 0 0 -261 -5188 29 JUN 2007 0 0 0 0 -588 -4989 28 JUN 2007 -2 -16 0 0 -318 -NR- 27 JUN 2007 19 -14 0 0 -291 -5774 26 JUN 2007 18 -95 0 -NR- -413 -NR- 25 JUN 2007 -162 -412 0 0 -359 -NR- 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) 08 JUL 2007 1446 -NR- 0 0 0 -795 07 JUL 2007 1371 -NR- 0 0 0 -636 06 JUL 2007 863 -NR- 0 0 0 -589 05 JUL 2007 454 -NR- 0 0 0 -466 04 JUL 2007 1116 -NR- 0 0 0 -365 03 JUL 2007 803 -NR- 0 0 0 -88 02 JUL 2007 556 -NR- 0 0 0 -28 01 JUL 2007 1 -NR- 0 0 0 1 30 JUN 2007 2 -NR- 0 0 0 -2 29 JUN 2007 1 -NR- 0 0 0 2 28 JUN 2007 2 -NR- 0 0 0 4 27 JUN 2007 1 -NR- 0 0 0 6 26 JUN 2007 0 -NR- 0 0 0 -14 25 JUN 2007 2 -NR- 0 0 0 -0 *** 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 09JUL2007 @ 14:15 ** Preliminary Data - Subject to Revision **