U. S. Army Corps of Engineers, Jacksonville District Lake Okeechobee and Vicinity Report Data Ending 2400 hours 01 SEP 2008 _____________________________________________________________________________ Okeechobee Lake Regulation Elevation Last Year 2YRS Ago (ft-NGVD) (ft-NGVD) (ft-NGVD) *Okeechobee Lake Elevation 14.60 9.52 12.49 (Official Elv) Bottom of High Lake Mngmt= 16.43 Top of Water Short Mngmt= 12.40 Currently in Operational Management Band 01SEP (1965-2007) Period of Record Average 14.25 Difference from POR Average 0.35 Simulated Average LORS2008 [1965-2000] 13.24 Difference from Average LORS2008 1.36 Today Lake Okechobee elevation is determined from the 4 interior stations ++Navigation Depths (Based on 2001 Channel Condition Survey) Route 1 ÷ 8.54' Route 2 ÷ 5.94' Bridge Clearance = 49.94' ______________________________________________________________________________ 4 Interior and 4 Edge Okeechobee Lake Average (Avg-Daily values): L001 L005 L006 LZ40 S4 S352 S308 S133 14.41 14.66 14.61 14.70 14.82 14.77 14.47 14.54 *Combination Okeechobee Avg-Daily Lake Average = 14.62 (*See Note) Interior Okeechobee Lake Average (Avg-Daily values): L001 L005 L006 LZ40 14.41 14.66 14.61 14.70 *Interior Okeechobee Avg-Daily Lake Average = 14.60 (*See Note) Okeechobee Lake Average (Avg-Daily values): (BAD) (BAD) C5 S4 S3 S2 S352 S308 S135 S133 S127 S129 14.92 14.82 14.82 14.70 14.77 14.47 14.41 14.54 14.91 14.68 *Edge Okeechobee Avg-Daily Lake Average = 14.70 (*See Note) ______________________________________________________________________________ Okeechobee Inflows (cfs): S65E 11895 S191 1100 Fisheating Cr 1261 S154 -265 S133 Pumps -NR- S135 Pumps 50 S84 1235 S127 Pumps 0 S2 Pumps 0 S71 2287 S129 Pumps 104 S3 Pumps 0 S72 781 S131 Pumps 156 S4 Pumps 235 Total Inflows: 18839 Okeechobee Outflows (cfs): S135 Culverts 0 S354 0 S77 -NR- S127 Culverts -NR- S351 0 S308 (BAD) 1 S129 Culverts 0 S352 -NR- S131 Culverts L8 Canal Pt -485 C5 -NR- Total Outflows: No Report Due To Missing S77 or S308 Discharge Data Okeechobee Pan Evaporation (inches): S77 0.32 S308 0.25 Average Pan Evap x 0.75 Pan Coefficient = 0.21" = 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 21175 cfs or 42000 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: 13.23 14.54 -NR- 0 0 0 0 -NR- (cfs) S193: ______ S191: 18.44 14.27 1100 1.8 1.6 1.8 S135 Pumps: 13.01 14.46 50 0 0 0 50 (cfs) S135 Culverts: 0 0.0 0.0 North West Shore S65E: 21.05 15.05 11895 4.7 4.8 4.8 4.8 4.8 4.8 S127 Pumps: 13.23 14.83 0 0 0 0 0 0 (cfs) S127 Culvert: -NR- -NR- S129 Pumps: 13.12 14.62 104 24 37 43 (cfs) S129 Culvert: 0 0.0 S131 Pumps: 12.67 15.19 156 141 15 (cfs) S131 Culvert: Fisheating Creek nr Palmdale 33.38 1261 nr Lakeport ______ C5: ______ 14.92 -NR- -NR- -NR- -NR- South Shore S4 Pumps: 11.80 14.93 235 235 0 0 (cfs) S169: 14.95 11.96 0 0.0 0.0 0.0 S310: ______ -NR- S3 Pumps: 9.25 14.91 0 0 0 0 (cfs) S354: 14.91 9.25 0 -NR- -NR- S2 Pumps: 10.14 14.80 0 0 0 0 0 (cfs) S351: 14.80 10.14 0 -NR- -NR- -NR- S352: ______ -NR- -NR- -NR- -NR- C10A: -NR- 14.76 -NR- -NR- 7.0 -NR- -NR- L8 Canal PT 14.83 -485 _________________________________________________________________________ Temporary Pumps S351: 10.14 14.80 0 -NR--NR--NR--NR--NR--NR- S352: -NR- ______ -NR- -NR--NR--NR--NR- S354: 9.25 14.91 0 -NR--NR--NR--NR- _________________________________________________________________________ Caloosahatchee River (S77, S78, S79) S47B: 13.02 12.80 3.0 4.3 S47D: 12.54 10.48 192 1.0 S77: Spillway and Sector Flow: -NR- -NR- -NR- 0.0 -NR- -NR- -NR- Flow Due to Lockages+: -NR- S77 Below USGS Flow Gage 260 (TESTING) S78: Spillway and Sector Flow: 10.57 2.58 2602 1.5 2.5 2.5 1.5 Flow Due to Lockages+: 8 S79: Spillway and Sector Flow: 2.81 1.72 6528 4.0 4.0 4.0 4.0 4.0 4.0 4.0 4.0 Flow Due to Lockages+: 3 Percent of flow from S77 -NR-% Chloride (ppm) 30 St. Lucie Canal (S308, S80) S308: Spillway and Sector Flow: 14.51 13.56 0 0.0 0.0 0.0 0.0 Flow Due to Lockages+: 1 S308 Below USGS Flow Gage 81 S153: 18.64 13.49 208 0.0 0.5 S80: Spillway and Sector Flow: 13.67 2.19 1048 0.0 0.4 0.4 0.4 0.4 0.0 0.0 Flow Due to Lockages+: 21 Percent of flow from S308 0% Steele Point Top Salinity (mg/ml) 20 Steele Point Bottom Salinity (mg/ml) 17 Speedy Point Top Salinity (mg/ml) 10 Speedy Point Bottom Salinity (mg/ml) 12 + 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 1.73 S193: -NR- 0.00 0.00 -NR- -NR- Okeechobee Field Station: -NR- 0.00 3.76 S135 Pump Station: -NR- 0.00 0.00 S127 Pump Station: -NR- 0.00 0.15 S129 Pump Station: -NR- 0.00 0.35 S131 Pump Station: -NR- 0.00 0.03 S77: -NR- 0.00 0.59 -NR- -NR- S78: 0.00 0.63 0.92 12 2 S79: 0.00 0.88 2.27 57 6 S4 Pump Station: -NR- 0.00 0.00 Clewiston Field Station: -NR- 0.00 1.93 S3 Pump Station: -NR- 0.00 0.04 S2 Pump Station: -NR- 0.00 1.46 S308: 0.00 0.77 0.81 86 8 S80: 0.00 0.36 2.51 29 6 Okeechobee Average 0.00 0.06 0.83 (Sites S78, S79 and S80 not included) ______________________________________________________________________________ Okeechobee Lake Elevations 01 SEP 2008 14.60 Difference from 01SEP08 01SEP08 -1 Day = 31 AUG 2008 14.50 -0.10 01SEP08 -2 Days = 30 AUG 2008 14.35 -0.25 01SEP08 -3 Days = 29 AUG 2008 14.24 -0.36 01SEP08 -4 Days = 28 AUG 2008 14.13 -0.47 01SEP08 -5 Days = 27 AUG 2008 14.02 -0.58 01SEP08 -6 Days = 26 AUG 2008 13.81 -0.79 01SEP08 -7 Days = 25 AUG 2008 13.63 -0.97 01SEP08 -30 Days = 02 AUG 2008 10.91 -3.69 01SEP08 -1 Year = 01 SEP 2007 9.52 -5.08 01SEP08 -2 Year = 01 SEP 2006 12.49 -2.11 ______________________________________________________________________________ Long Term Mean 30day Avearge ET for Lake Alfred (Inches) = 4.30 ______________________________________________________________________________ Lake Okeechobee Net Inflow (LONIN) Average Flow over the previous 14 days | Avg-Daily Flow 01SEP08 Today = 01 SEP 2008 -NR- TUE | -NR- 01SEP08 -1 Day = 31 AUG 2008 -NR- MON | -NR- 01SEP08 -2 Days = 30 AUG 2008 -NR- SUN | -NR- 01SEP08 -3 Days = 29 AUG 2008 -NR- SAT | -NR- 01SEP08 -4 Days = 28 AUG 2008 -NR- FRI | -NR- 01SEP08 -5 Days = 27 AUG 2008 -NR- THU | -NR- 01SEP08 -6 Days = 26 AUG 2008 -NR- WED | -NR- 01SEP08 -7 Days = 25 AUG 2008 -NR- TUE | -NR- 01SEP08 -8 Days = 24 AUG 2008 -NR- MON | -NR- 01SEP08 -9 Days = 23 AUG 2008 -NR- SUN | -NR- 01SEP08 -10 Days = 22 AUG 2008 -NR- SAT | -NR- 01SEP08 -11 Days = 21 AUG 2008 -NR- FRI | -NR- 01SEP08 -12 Days = 20 AUG 2008 -NR- THU | -NR- 01SEP08 -13 Days = 19 AUG 2008 -NR- WED | -NR- ______________________________________________________________________________ ______________________________________________________________________________ S65E Average Flow over previous 14 days | Avg-Daily Flow 01SEP08 Today= 01 SEP 2008 12648 TUE | 11895 01SEP08 -1 Day = 31 AUG 2008 11856 MON | 12717 01SEP08 -2 Days = 30 AUG 2008 10952 SUN | 12779 01SEP08 -3 Days = 29 AUG 2008 10100 SAT | 13062 01SEP08 -4 Days = 28 AUG 2008 9343 FRI | 13405 01SEP08 -5 Days = 27 AUG 2008 8503 THU | 13701 01SEP08 -6 Days = 26 AUG 2008 7661 WED | 13676 01SEP08 -7 Days = 25 AUG 2008 6837 TUE | 14394 01SEP08 -8 Days = 24 AUG 2008 5952 MON | 15504 01SEP08 -9 Days = 23 AUG 2008 5079 SUN | 16038 01SEP08 -10 Days = 22 AUG 2008 4147 SAT | 16992 01SEP08 -11 Days = 21 AUG 2008 3022 FRI | 14002 01SEP08 -12 Days = 20 AUG 2008 2110 THU | 7969 01SEP08 -13 Days = 19 AUG 2008 1657 WED | 940 ______________________________________________________________________________ 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) 01 SEP 2008 -NR- -NR- 3438 5176 161 3 31 AUG 2008 -NR- -NR- 3603 5895 443 2 30 AUG 2008 -NR- -NR- 3000 -NR- 100 -1 29 AUG 2008 -NR- -NR- 4581 7710 99 -0 28 AUG 2008 -NR- -NR- 4572 8064 134 0 27 AUG 2008 -NR- -NR- 5735 9783 52 0 26 AUG 2008 0 0 7164 -NR- -157 0 25 AUG 2008 0 2 5975 9896 8 0 24 AUG 2008 0 1 5087 9290 147 0 23 AUG 2008 0 0 6060 -NR- 87 0 22 AUG 2008 0 -NR- 5530 -NR- -1889 -5973 21 AUG 2008 -NR- -NR- 6511 13088 -3860 -13437 20 AUG 2008 -NR- -NR- 7220 14286 -4744 -17183 19 AUG 2008 0 -NR- 3954 7129 -754 -3573 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) 01 SEP 2008 12952 -NR- 0 -NR- 0 -961 31 AUG 2008 24866 -NR- 0 -NR- 0 -1100 30 AUG 2008 15232 -NR- 0 -NR- 0 -1169 29 AUG 2008 18084 -NR- 0 -NR- 0 -1387 28 AUG 2008 22317 -NR- 0 -NR- 0 -1828 27 AUG 2008 22989 -NR- 0 -NR- 0 -1941 26 AUG 2008 26715 -NR- 0 -NR- 0 -1969 25 AUG 2008 26883 -NR- 0 -NR- 0 -1978 24 AUG 2008 21751 -NR- 0 -NR- 0 -2297 23 AUG 2008 31833 -NR- -NR- -NR- -NR- -2771 22 AUG 2008 25833 -NR- -NR- -NR- -NR- -3122 21 AUG 2008 182485 -NR- -NR- -NR- -NR- -3438 20 AUG 2008 35970 -NR- -NR- -NR- -NR- -3386 19 AUG 2008 21892 -NR- -NR- -NR- -NR- -1941 *** 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 02SEP2008 @ 08:15 ** Preliminary Data - Subject to Revision **