U. S. Army Corps of Engineers, Jacksonville District Lake Okeechobee and Vicinity Report Data Ending 2400 hours 12 AUG 2007 _____________________________________________________________________________ Okeechobee Lake Regulation Elevation Last Year 2YRS Ago (ft-NGVD) (ft-NGVD) (ft-NGVD) *Okeechobee Lake Elevation 9.47 12.02 16.12 (Official Elv) Regulation Zone Elevations B= 17.34 C= 16.84 D= 16.01 E= 14.52 12AUG (1965-2006) Period of Record Average 14.04 Difference from POR Average -4.57 Simulated Average LORSS2007 TSP[1965-2000] 12.89 Difference from Average LORSS2007 TSP -3.42 Today Lake Okechobee elevation is determined from the 4 interior stations ++Navigation Depths (Based on 2001 Channel Condition Survey) Route 1 ÷ 3.41' Route 2 ÷ 0.81' Bridge Clearance = 53.82' ______________________________________________________________________________ 4 Interior and 4 Edge Okeechobee Lake Average (Avg-Daily values): (BAD) L001 L005 L006 LZ40 S4 S352 S308 S133 9.39 9.46 9.47 9.56 9.60 9.66 9.47 9.60 *Combination Okeechobee Avg-Daily Lake Average = 9.53 (*See Note) Interior Okeechobee Lake Average (Avg-Daily values): L001 L005 L006 LZ40 9.39 9.46 9.47 9.56 *Interior Okeechobee Avg-Daily Lake Average = 9.47 (*See Note) Okeechobee Lake Average (Avg-Daily values): (BAD) (BAD) (BAD) (BAD) (BAD) C5 S4 S3 S2 S352 S308 S135 S133 S127 S129 9.61 9.60 9.85 9.91 9.66 9.47 8.76 9.60 12.70 12.37 *Edge Okeechobee Avg-Daily Lake Average = 10.15 (*See Note) ______________________________________________________________________________ Okeechobee Inflows (cfs): S65E 652 S191 0 Fisheating Cr 370 S154 0 S133 Pumps -NR- S135 Pumps 0 S84 45 S127 Pumps 0 S2 Pumps 0 S71 192 S129 Pumps 0 S3 Pumps 0 S72 0 S131 Pumps 0 S4 Pumps 0 Total Inflows: 1259 Okeechobee Outflows (cfs): S135 Culverts 0 S354 0 S77 -NR- S127 Culverts -NR- S351 0 S308 (BAD) -2098 S129 Culverts 0 S352 0 S131 Culverts L8 Canal Pt -NR- C5 -NR- Total Outflows: No Report Due To Missing S77 or S308 Discharge Data Okeechobee Pan Evaporation (inches): S77 0.12 S308 0.39 Average Pan Evap x 0.75 Pan Coefficient = 0.19" = 0.02' Lake Average Precipitation using NEXRAD: = -NR-" = -NR-' Evaporation - Precipitation: = -NR-" = -NR-' Evaporation - Precipitation using Lake Area of 730 square miles is equal to -NR- Lake Okeechobee (Change in Storage) Flow is 1563 cfs or 3100 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: 9.59 9.70 -NR- -NR- -NR- -NR- -NR- -NR- (cfs) S193: 51.00 S191: 18.24 10.06 0 0.0 0.0 0.0 S135 Pumps: 8.73 8.78 0 0 0 0 0 (cfs) S135 Culverts: 0 0.0 0.0 North West Shore S65E: 20.84 9.18 652 0.4 0.1 0.1 0.1 0.1 0.4 S127 Pumps: 12.77 12.66 0 0 0 0 0 0 (cfs) S127 Culvert: -NR- -NR- S129 Pumps: 12.19 12.32 0 0 0 0 (cfs) S129 Culvert: 0 0.0 S131 Pumps: 12.92 11.98 0 0 0 (cfs) S131 Culvert: Fisheating Creek nr Palmdale 32.12 370 nr Lakeport ______ C5: ______ 9.61 -NR- -NR- -NR- -NR- South Shore S4 Pumps: 9.66 9.53 0 0 0 0 (cfs) S169: 9.52 9.83 0 0.0 0.0 0.0 S310: ______ -NR- S3 Pumps: ______ -NR- 0 0 0 0 (cfs) S354: -NR- ______ 0 -NR- -NR- S2 Pumps: 11.27 9.91 0 0 0 0 0 (cfs) S351: 9.91 11.27 0 -NR- -NR- -NR- S352: 9.67 11.74 0 -NR- -NR- C10A: -NR- 11.00 -NR- -NR- 8.0 -NR- -NR- L8 Canal PT ______ -NR- _________________________________________________________________________ Temporary Pumps S351: 11.27 9.91 0 -NR--NR--NR--NR--NR--NR- S352: 11.74 9.67 0 -NR--NR--NR--NR- S354: ______ -NR- 0 -NR--NR--NR--NR- _________________________________________________________________________ Caloosahatchee River (S77, S78, S79) S47B: 9.61 9.70 6.0 5.9 S47D: 9.72 9.65 0 0.0 S77: Spillway and Sector Flow: -NR- -NR- -NR- 1.5 -NR- -NR- -NR- Flow Due to Lockages+: -NR- S78: Spillway and Sector Flow: 9.78 3.09 0 0.0 0.0 0.0 0.0 Flow Due to Lockages+: 7 S79: Spillway and Sector Flow: 2.99 0.77 496 0.0 0.0 0.5 0.5 0.5 0.5 0.0 0.0 Flow Due to Lockages+: 1 Percent of flow from S77 -NR-% Chloride (ppm) 87 St. Lucie Canal (S308, S80) S308: Spillway and Sector Flow: 9.48 9.68 -2098 0.0 2.5 2.5 0.0 Flow Due to Lockages+: -0 S308 Below USGS Flow Gage -270 S153: 18.69 9.54 73 0.0 0.0 S80: Spillway and Sector Flow: 9.87 0.88 0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 Flow Due to Lockages+: 1 Percent of flow from S308 -NR-% Steele Point Top Salinity (mg/ml) 30 Steele Point Bottom Salinity (mg/ml) 28 Speedy Point Top Salinity (mg/ml) 16 Speedy Point Bottom Salinity (mg/ml) 18 + 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 0.20 S193: -NR- 0.00 0.00 -NR- -NR- Okeechobee Field Station: -NR- 0.00 0.02 S135 Pump Station: -NR- 0.00 0.05 S127 Pump Station: -NR- 0.00 0.03 S129 Pump Station: -NR- 0.00 0.00 S131 Pump Station: -NR- 0.00 0.04 S77: -NR- 0.00 0.00 -NR- -NR- S78: 0.00 1.34 3.33 51 1 S79: 0.00 0.97 1.23 324 1 S4 Pump Station: -NR- 0.00 0.00 Clewiston Field Station: -NR- 0.00 0.40 S3 Pump Station: -NR- 0.00 0.00 S2 Pump Station: -NR- 0.00 0.00 S308: 0.46 0.94 0.94 236 6 S80: 0.01 0.24 0.24 125 0 Okeechobee Average 0.46 0.07 0.13 (Sites S78, S79 and S80 not included) ______________________________________________________________________________ Okeechobee Lake Elevations 12 AUG 2007 9.47 Difference from 12AUG07 12AUG07 -1 Day = 11 AUG 2007 9.46 -0.01 12AUG07 -2 Days = 10 AUG 2007 9.47 0.00 12AUG07 -3 Days = 09 AUG 2007 9.49 0.02 12AUG07 -4 Days = 08 AUG 2007 9.48 0.01 12AUG07 -5 Days = 07 AUG 2007 9.48 0.01 12AUG07 -6 Days = 06 AUG 2007 9.46 -0.01 12AUG07 -7 Days = 05 AUG 2007 9.45 -0.02 12AUG07 -30 Days = 13 JUL 2007 9.09 -0.38 12AUG07 -1 Year = 12 AUG 2006 12.02 2.55 12AUG07 -2 Year = 12 AUG 2005 16.12 6.65 ______________________________________________________________________________ Long Term Mean 30day Avearge ET for Lake Alfred = 4.42 ______________________________________________________________________________ Lake Okeechobee Net Inflow (LONIN) Average Flow over the previous 14 days | Avg-Daily Flow 12AUG07 Today = 12 AUG 2007 -NR- MON | -NR- 12AUG07 -1 Day = 11 AUG 2007 -NR- SUN | -NR- 12AUG07 -2 Days = 10 AUG 2007 -NR- SAT | -NR- 12AUG07 -3 Days = 09 AUG 2007 -NR- FRI | -NR- 12AUG07 -4 Days = 08 AUG 2007 -NR- THU | -NR- 12AUG07 -5 Days = 07 AUG 2007 -NR- WED | -NR- 12AUG07 -6 Days = 06 AUG 2007 -NR- TUE | -NR- 12AUG07 -7 Days = 05 AUG 2007 -NR- MON | -NR- 12AUG07 -8 Days = 04 AUG 2007 -NR- SUN | -NR- 12AUG07 -9 Days = 03 AUG 2007 -NR- SAT | -NR- 12AUG07 -10 Days = 02 AUG 2007 -NR- FRI | -NR- 12AUG07 -11 Days = 01 AUG 2007 -NR- THU | -NR- 12AUG07 -12 Days = 31 JUL 2007 -NR- WED | -NR- 12AUG07 -13 Days = 30 JUL 2007 -NR- TUE | -NR- ______________________________________________________________________________ ______________________________________________________________________________ S65-E Average Flow over previous 14 days | Avg-Daily Flow 12AUG07 Today= 12 AUG 2007 1265 MON | 652 12AUG07 -1 Day = 11 AUG 2007 1320 SUN | 628 12AUG07 -2 Days = 10 AUG 2007 1384 SAT | 721 12AUG07 -3 Days = 09 AUG 2007 1442 FRI | 973 12AUG07 -4 Days = 08 AUG 2007 1510 THU | 1177 12AUG07 -5 Days = 07 AUG 2007 1526 WED | 1142 12AUG07 -6 Days = 06 AUG 2007 1496 TUE | 1382 12AUG07 -7 Days = 05 AUG 2007 1460 MON | 1826 12AUG07 -8 Days = 04 AUG 2007 1384 SUN | 1917 12AUG07 -9 Days = 03 AUG 2007 1284 SAT | 1584 12AUG07 -10 Days = 02 AUG 2007 1171 FRI | 1386 12AUG07 -11 Days = 01 AUG 2007 1072 THU | 1514 12AUG07 -12 Days = 31 JUL 2007 963 WED | 1381 12AUG07 -13 Days = 30 JUL 2007 865 TUE | 1431 ______________________________________________________________________________ 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 AUG 2007 -NR- -NR- 0 13 -535 -4161 11 AUG 2007 -NR- -NR- 0 4 -276 -4204 10 AUG 2007 -NR- -NR- 0 -NR- -229 -NR- 09 AUG 2007 -NR- -NR- 0 -NR- -334 -NR- 08 AUG 2007 -NR- -NR- 0 2 ****** -NR- 07 AUG 2007 -NR- -NR- 0 -NR- ****** -NR- 06 AUG 2007 -NR- -NR- 0 -NR- ****** 432 05 AUG 2007 -NR- -NR- 0 0 -630 1785 04 AUG 2007 -NR- -NR- 0 9 -891 -1450 03 AUG 2007 -776 -NR- 0 2 -552 -4230 02 AUG 2007 -809 -1690 0 8 -525 -NR- 01 AUG 2007 -783 -1734 0 -NR- -569 -2395 31 JUL 2007 -982 -1876 0 -NR- -540 -5080 30 JUL 2007 -995 -1904 0 4 -563 -9253 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 AUG 2007 985 -NR- 0 0 0 -NR- 11 AUG 2007 779 -NR- 0 0 0 -NR- 10 AUG 2007 248 -NR- 0 0 0 -NR- 09 AUG 2007 446 -NR- 0 0 0 -NR- 08 AUG 2007 509 -NR- 0 0 0 -NR- 07 AUG 2007 1069 -NR- 0 0 0 -NR- 06 AUG 2007 1 -NR- 0 0 0 -NR- 05 AUG 2007 2 -NR- 0 0 0 -NR- 04 AUG 2007 1 -NR- 0 0 0 -NR- 03 AUG 2007 1 -NR- 0 0 0 -NR- 02 AUG 2007 132 -NR- 0 0 0 -NR- 01 AUG 2007 517 -NR- 0 0 0 -NR- 31 JUL 2007 513 -NR- 0 0 0 -NR- 30 JUL 2007 501 -NR- 0 0 0 -NR- *** 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 13AUG2007 @ 23:15 ** Preliminary Data - Subject to Revision **