U. S. Army Corps of Engineers, Jacksonville District Lake Okeechobee and Vicinity Report Data Ending 2400 hours 13 JUL 2008 _____________________________________________________________________________ Okeechobee Lake Regulation Elevation Last Year 2YRS Ago (ft-NGVD) (ft-NGVD) (ft-NGVD) *Okeechobee Lake Elevation 9.94 9.09 12.27 (Official Elv) Bottom of High Lake Mngmt= 16.20 Top of Water Short Mngmt= 11.37 Currently in Water Shortage Management Band 13JUL (1965-2006) Period of Record Average 13.69 Difference from POR Average -3.75 Simulated Average LORS2008 [1965-2000] 12.47 Difference from Average LORS2008 -2.53 Today Lake Okechobee elevation is determined from the 4 interior stations ++Navigation Depths (Based on 2001 Channel Condition Survey) Route 1 ÷ 3.88' Route 2 ÷ 1.28' Bridge Clearance = -NR-' ______________________________________________________________________________ 4 Interior and 4 Edge Okeechobee Lake Average (Avg-Daily values): (BAD) L001 L005 L006 LZ40 S4 S352 S308 S133 10.18 10.02 9.33 10.23 10.21 10.41 10.25 10.41 *Combination Okeechobee Avg-Daily Lake Average = 10.13 (*See Note) Interior Okeechobee Lake Average (Avg-Daily values): L001 L005 L006 LZ40 10.18 10.02 9.33 10.23 *Interior Okeechobee Avg-Daily Lake Average = 9.94 (*See Note) Okeechobee Lake Average (Avg-Daily values): (BAD) (BAD) (BAD) (BAD) (BAD) C5 S4 S3 S2 S352 S308 S135 S133 S127 S129 10.44 10.21 10.21 10.16 10.41 10.25 10.33 10.41 11.26 11.71 *Edge Okeechobee Avg-Daily Lake Average = 10.54 (*See Note) ______________________________________________________________________________ Okeechobee Inflows (cfs): S65E 935 S191 -NR- Fisheating Cr -NR- S154 0 S133 Pumps -NR- S135 Pumps 0 S84 128 S127 Pumps 0 S2 Pumps 0 S71 2133 S129 Pumps 0 S3 Pumps 0 S72 370 S131 Pumps 0 S4 Pumps 0 Total Inflows: 3566 Okeechobee Outflows (cfs): S135 Culverts 0 S354 -NR- S77 -NR- S127 Culverts -NR- S351 -NR- S308 (BAD) -NR- S129 Culverts 0 S352 -NR- S131 Culverts L8 Canal Pt -633 C5 -NR- Total Outflows: No Report Due To Missing S77 or S308 Discharge Data Okeechobee Pan Evaporation (inches): S77 0.23 S308 -NR- Average Pan Evap x 0.75 Pan Coefficient = -NR-" = -NR-' Lake Average Precipitation using NEXRAD: = 0.08" = 0.01' Evaporation - Precipitation: = -NR-" = -NR-' Evaporation - Precipitation using Lake Area of 730 square miles is equal to -NR- Lake Okeechobee (Change in Storage) Flow is 1462 cfs or 2900 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: 13.06 10.69 -NR- 0 0 0 0 -NR- (cfs) S193: ______ S191: 18.94 10.59 -NR- 0.0 -NR- 0.0 S135 Pumps: 11.34 10.32 0 0 0 0 0 (cfs) S135 Culverts: 0 0.0 0.0 North West Shore S65E: 20.71 10.24 935 0.5 0.4 0.4 0.3 0.4 0.4 S127 Pumps: 13.60 11.25 0 0 0 0 0 0 (cfs) S127 Culvert: -NR- -NR- S129 Pumps: 12.08 11.74 0 0 0 0 (cfs) S129 Culvert: 0 0.0 S131 Pumps: 13.32 12.19 0 0 0 (cfs) S131 Culvert: Fisheating Creek nr Palmdale ______ -NR- nr Lakeport ______ C5: ______ 10.44 -NR- -NR- -NR- -NR- South Shore S4 Pumps: 10.28 10.18 0 0 0 0 (cfs) S169: 10.10 10.44 0 0.0 0.0 0.0 S310: ______ -NR- S3 Pumps: ______ -NR- 0 0 0 0 (cfs) S354: -NR- ______ -NR- -NR- -NR- S2 Pumps: 10.00 10.03 0 0 0 0 0 (cfs) S351: 10.03 10.00 -NR- -NR- -NR- -NR- S352: ______ -NR- -NR- -NR- -NR- C10A: -NR- 11.38 -NR- -NR- 8.0 -NR- -NR- L8 Canal PT 11.52 -633 _________________________________________________________________________ Temporary Pumps S351: 10.00 10.03 -NR- -NR--NR--NR--NR--NR--NR- S352: -NR- ______ -NR- -NR--NR--NR--NR- S354: ______ -NR- -NR- -NR--NR--NR--NR- _________________________________________________________________________ Caloosahatchee River (S77, S78, S79) S47B: 11.02 10.90 0.0 0.0 S47D: 11.37 10.49 27 0.0 S77: Spillway and Sector Flow: 10.38 10.47 -NR- 5.0 5.0 5.0 5.0 Flow Due to Lockages+: -NR- S77 Below USGS Flow Gage -555 (TESTING) S78: Spillway and Sector Flow: 10.79 -NR- -NR- 0.0 0.0 0.0 0.0 Flow Due to Lockages+: -NR- S79: Spillway and Sector Flow: 3.44 0.94 1844 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 Flow Due to Lockages+: 0 Percent of flow from S77 -NR-% Chloride (ppm) 85 St. Lucie Canal (S308, S80) S308: Spillway and Sector Flow: -NR- -NR- -NR- 0.0 0.0 0.0 0.0 Flow Due to Lockages+: -NR- S308 Below USGS Flow Gage -NR- S153: 18.96 12.21 0 0.0 0.0 S80: Spillway and Sector Flow: 12.50 0.31 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) 25 Steele Point Bottom Salinity (mg/ml) 28 Speedy Point Top Salinity (mg/ml) 15 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 0.04 S193: -NR- 0.00 0.00 -NR- -NR- Okeechobee Field Station: -NR- 0.00 0.05 S135 Pump Station: -NR- 0.00 0.22 S127 Pump Station: -NR- 0.00 0.07 S129 Pump Station: -NR- 0.00 0.11 S131 Pump Station: -NR- 0.00 0.16 S77: 0.00 0.05 0.05 -NR- -NR- S78: 2.59 3.89 4.60 107 4 S79: 0.36 1.02 2.07 193 1 S4 Pump Station: -NR- 0.00 0.00 Clewiston Field Station: -NR- 0.00 0.03 S3 Pump Station: -NR- 0.00 0.00 S2 Pump Station: -NR- 0.00 0.01 S308: 0.00 0.22 0.22 -NR- -NR- S80: 0.07 1.13 1.23 56 4 Okeechobee Average 0.00 0.02 0.07 (Sites S78, S79 and S80 not included) ______________________________________________________________________________ Okeechobee Lake Elevations 13 JUL 2008 9.94 Difference from 13JUL08 13JUL08 -1 Day = 12 JUL 2008 9.93 -0.01 13JUL08 -2 Days = 11 JUL 2008 9.92 -0.02 13JUL08 -3 Days = 10 JUL 2008 9.98 0.04 13JUL08 -4 Days = 09 JUL 2008 9.99 0.05 13JUL08 -5 Days = 08 JUL 2008 10.02 0.08 13JUL08 -6 Days = 07 JUL 2008 10.02 0.08 13JUL08 -7 Days = 06 JUL 2008 9.99 0.05 13JUL08 -30 Days = 13 JUN 2008 9.30 -0.64 13JUL08 -1 Year = 13 JUL 2007 9.09 -0.85 13JUL08 -2 Year = 13 JUL 2006 12.27 2.33 ______________________________________________________________________________ Long Term Mean 30day Avearge ET for Lake Alfred (Inches) = 4.54 ______________________________________________________________________________ Lake Okeechobee Net Inflow (LONIN) Average Flow over the previous 14 days | Avg-Daily Flow 13JUL08 Today = 13 JUL 2008 -NR- MON | -NR- 13JUL08 -1 Day = 12 JUL 2008 -NR- SUN | -NR- 13JUL08 -2 Days = 11 JUL 2008 -NR- SAT | -NR- 13JUL08 -3 Days = 10 JUL 2008 -NR- FRI | -NR- 13JUL08 -4 Days = 09 JUL 2008 -NR- THU | -NR- 13JUL08 -5 Days = 08 JUL 2008 -NR- WED | -NR- 13JUL08 -6 Days = 07 JUL 2008 -NR- TUE | -NR- 13JUL08 -7 Days = 06 JUL 2008 -NR- MON | -NR- 13JUL08 -8 Days = 05 JUL 2008 -NR- SUN | -NR- 13JUL08 -9 Days = 04 JUL 2008 -NR- SAT | -NR- 13JUL08 -10 Days = 03 JUL 2008 -NR- FRI | -NR- 13JUL08 -11 Days = 02 JUL 2008 -NR- THU | -NR- 13JUL08 -12 Days = 01 JUL 2008 -NR- WED | -NR- 13JUL08 -13 Days = 30 JUN 2008 -NR- TUE | -NR- ______________________________________________________________________________ ______________________________________________________________________________ S65E Average Flow over previous 14 days | Avg-Daily Flow 13JUL08 Today= 13 JUL 2008 872 MON | 935 13JUL08 -1 Day = 12 JUL 2008 831 SUN | 348 13JUL08 -2 Days = 11 JUL 2008 842 SAT | 1217 13JUL08 -3 Days = 10 JUL 2008 755 FRI | 1179 13JUL08 -4 Days = 09 JUL 2008 675 THU | 1171 13JUL08 -5 Days = 08 JUL 2008 610 WED | 450 13JUL08 -6 Days = 07 JUL 2008 607 TUE | 1556 13JUL08 -7 Days = 06 JUL 2008 533 MON | 1318 13JUL08 -8 Days = 05 JUL 2008 452 SUN | 1302 13JUL08 -9 Days = 04 JUL 2008 391 SAT | 910 13JUL08 -10 Days = 03 JUL 2008 350 FRI | 786 13JUL08 -11 Days = 02 JUL 2008 294 THU | 228 13JUL08 -12 Days = 01 JUL 2008 293 WED | 439 13JUL08 -13 Days = 30 JUN 2008 310 TUE | 362 ______________________________________________________________________________ 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) 13 JUL 2008 -NR- -NR- 0 -NR- -NR- -NR- 12 JUL 2008 0 -NR- 0 -NR- 19 0 11 JUL 2008 0 0 0 4 -NR- -NR- 10 JUL 2008 0 -270 0 4 -NR- -704 09 JUL 2008 -1134 -1943 0 5 -NR- -2207 08 JUL 2008 -715 -960 0 0 -450 -4373 07 JUL 2008 -NR- -NR- 0 2 -248 -3177 06 JUL 2008 -NR- -NR- 0 13 -551 -4782 05 JUL 2008 -NR- -NR- 0 16 -529 -5455 04 JUL 2008 -NR- -NR- 0 2 -197 -2139 03 JUL 2008 -NR- -NR- 0 11 -545 -4517 02 JUL 2008 -NR- -NR- 0 7 -439 -NR- 01 JUL 2008 -NR- -NR- 0 7 -194 -2012 30 JUN 2008 629 -NR- 0 0 -401 -3334 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) 13 JUL 2008 3657 -NR- -NR- -NR- -NR- -1254 12 JUL 2008 1952 -NR- -NR- -NR- -NR- -1344 11 JUL 2008 1138 -NR- -NR- -NR- -NR- -1157 10 JUL 2008 1756 -NR- -NR- -NR- -NR- -825 09 JUL 2008 3024 -NR- -NR- -NR- -NR- -907 08 JUL 2008 2917 -NR- -NR- -NR- -NR- -1021 07 JUL 2008 1047 -NR- -NR- -NR- -NR- -1207 06 JUL 2008 1344 -NR- -NR- -NR- -NR- -910 05 JUL 2008 1404 -NR- -NR- -NR- -NR- -812 04 JUL 2008 963 -NR- -NR- -NR- -NR- -879 03 JUL 2008 1596 -NR- 0 -NR- 0 -1027 02 JUL 2008 1872 -NR- 0 -NR- 0 -1074 01 JUL 2008 1349 -NR- 0 -NR- 0 -972 30 JUN 2008 1811 -NR- 0 -NR- 0 -1168 *** 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 14JUL2008 @ 15:15 ** Preliminary Data - Subject to Revision **