U. S. Army Corps of Engineers, Jacksonville District Lake Okeechobee and Vicinity Report Data Ending 2400 hours 24 AUG 2008 _____________________________________________________________________________ Okeechobee Lake Regulation Elevation Last Year 2YRS Ago (ft-NGVD) (ft-NGVD) (ft-NGVD) *Okeechobee Lake Elevation 13.41 9.48 11.99 (Official Elv) Bottom of High Lake Mngmt= 16.40 Top of Water Short Mngmt= 12.24 Currently in Operational Management Band 24AUG (1965-2006) Period of Record Average 14.23 Difference from POR Average -0.82 Simulated Average LORS2008 [1965-2000] 13.12 Difference from Average LORS2008 0.28 Today Lake Okechobee elevation is determined from the 4 interior stations ++Navigation Depths (Based on 2001 Channel Condition Survey) Route 1 ÷ 7.35' Route 2 ÷ 4.75' Bridge Clearance = 49.47' ______________________________________________________________________________ 4 Interior and 4 Edge Okeechobee Lake Average (Avg-Daily values): (BAD) L001 L005 L006 LZ40 S4 S352 S308 S133 13.32 13.46 13.32 13.54 13.56 13.65 13.38 13.37 *Combination Okeechobee Avg-Daily Lake Average = 13.45 (*See Note) Interior Okeechobee Lake Average (Avg-Daily values): L001 L005 L006 LZ40 13.32 13.46 13.32 13.54 *Interior Okeechobee Avg-Daily Lake Average = 13.41 (*See Note) Okeechobee Lake Average (Avg-Daily values): (BAD) (BAD) (BAD) (BAD) (BAD) (BAD) C5 S4 S3 S2 S352 S308 S135 S133 S127 S129 13.70 13.56 13.57 13.48 13.65 13.38 13.88 13.37 15.91 14.40 *Edge Okeechobee Avg-Daily Lake Average = 13.89 (*See Note) ______________________________________________________________________________ Okeechobee Inflows (cfs): S65E 15536 S191 3208 Fisheating Cr -NR- S154 622 S133 Pumps -NR- S135 Pumps 298 S84 4132 S127 Pumps 0 S2 Pumps 771 S71 3566 S129 Pumps 125 S3 Pumps 0 S72 1495 S131 Pumps 296 S4 Pumps 998 Total Inflows: 31047 Okeechobee Outflows (cfs): S135 Culverts 0 S354 -NR- S77 -NR- S127 Culverts -NR- S351 -NR- S308 (BAD) 0 S129 Culverts 0 S352 -NR- S131 Culverts L8 Canal Pt -1158 C5 -NR- Total Outflows: No Report Due To Missing S77 or S308 Discharge Data Okeechobee Pan Evaporation (inches): S77 -NR- S308 0.24 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 63475 cfs or 125900 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: 13.25 13.56 -NR- 0 0 0 0 -NR- (cfs) S193: ______ S191: 19.10 13.30 3208 4.2 2.0 1.2 S135 Pumps: 13.02 14.04 298 0 0 147 150 (cfs) S135 Culverts: 0 0.0 0.0 North West Shore S65E: 20.73 15.14 15536 6.2 6.3 6.3 6.3 6.2 6.3 S127 Pumps: 15.51 15.91 0 0 0 0 0 0 (cfs) S127 Culvert: -NR- -NR- S129 Pumps: 12.67 14.20 125 125 0 0 (cfs) S129 Culvert: 0 0.0 S131 Pumps: 13.40 15.08 296 149 147 (cfs) S131 Culvert: Fisheating Creek nr Palmdale ______ -NR- nr Lakeport ______ C5: ______ 13.70 -NR- -NR- -NR- -NR- South Shore S4 Pumps: 10.19 13.64 998 0 0 998 (cfs) S169: 13.62 10.43 0 0.0 0.0 0.0 S310: ______ -NR- S3 Pumps: ______ -NR- 0 0 0 0 (cfs) S354: -NR- ______ -NR- -NR- -NR- S2 Pumps: 10.70 13.57 771 0 0 771 0 (cfs) S351: 13.57 10.70 -NR- -NR- -NR- -NR- S352: ______ -NR- -NR- -NR- -NR- C10A: -NR- 14.16 -NR- -NR- 7.0 -NR- -NR- L8 Canal PT 14.32 -1158 _________________________________________________________________________ Temporary Pumps S351: 10.70 13.57 -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: 13.59 13.38 7.0 6.5 S47D: 12.85 11.20 440 2.5 S77: Spillway and Sector Flow: -NR- -NR- -NR- -NR- -NR- -NR- -NR- Flow Due to Lockages+: -NR- S77 Below USGS Flow Gage 133 (TESTING) S78: Spillway and Sector Flow: 11.22 3.27 4684 2.5 5.0 5.0 2.5 Flow Due to Lockages+: 1 S79: Spillway and Sector Flow: 2.88 1.89 10968 7.0 7.0 7.0 7.0 7.0 7.0 7.0 7.0 Flow Due to Lockages+: 1 Percent of flow from S77 -NR-% Chloride (ppm) 22 St. Lucie Canal (S308, S80) S308: Spillway and Sector Flow: 13.53 14.03 0 0.0 0.0 0.0 0.0 Flow Due to Lockages+: 0 S308 Below USGS Flow Gage 74 S153: 19.07 13.95 361 1.0 1.0 S80: Spillway and Sector Flow: 13.95 1.23 1911 0.6 0.5 0.6 0.5 0.6 0.5 0.5 Flow Due to Lockages+: 4 Percent of flow from S308 0% Steele Point Top Salinity (mg/ml) 9 Steele Point Bottom Salinity (mg/ml) 9 Speedy Point Top Salinity (mg/ml) 12 Speedy Point Bottom Salinity (mg/ml) 11 + 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- 3.75 11.85 S193: -NR- 0.00 0.00 -NR- -NR- Okeechobee Field Station: -NR- 2.94 12.35 S135 Pump Station: -NR- 1.13 6.97 S127 Pump Station: -NR- 3.99 10.73 S129 Pump Station: -NR- 0.95 6.90 S131 Pump Station: -NR- 1.73 5.71 S77: -NR- 0.00 0.00 -NR- -NR- S78: 0.02 0.37 8.82 81 0 S79: 0.00 34.87 40.67 56 0 S4 Pump Station: -NR- 0.00 0.00 Clewiston Field Station: -NR- 1.08 7.52 S3 Pump Station: -NR- 0.52 4.01 S2 Pump Station: -NR- 1.09 5.89 S308: 0.00 1.17 7.41 89 1 S80: 0.00 0.47 10.87 21 0 Okeechobee Average 0.00 1.41 6.10 (Sites S78, S79 and S80 not included) ______________________________________________________________________________ Okeechobee Lake Elevations 24 AUG 2008 13.41 Difference from 24AUG08 24AUG08 -1 Day = 23 AUG 2008 13.11 -0.30 24AUG08 -2 Days = 22 AUG 2008 12.83 -0.58 24AUG08 -3 Days = 21 AUG 2008 12.52 -0.89 24AUG08 -4 Days = 20 AUG 2008 12.22 -1.19 24AUG08 -5 Days = 19 AUG 2008 11.80 -1.61 24AUG08 -6 Days = 18 AUG 2008 11.34 -2.07 24AUG08 -7 Days = 17 AUG 2008 11.26 -2.15 24AUG08 -30 Days = 25 JUL 2008 10.68 -2.73 24AUG08 -1 Year = 24 AUG 2007 9.48 -3.93 24AUG08 -2 Year = 24 AUG 2006 11.99 -1.42 ______________________________________________________________________________ Long Term Mean 30day Avearge ET for Lake Alfred (Inches) = 4.39 ______________________________________________________________________________ Lake Okeechobee Net Inflow (LONIN) Average Flow over the previous 14 days | Avg-Daily Flow 24AUG08 Today = 24 AUG 2008 -NR- MON | -NR- 24AUG08 -1 Day = 23 AUG 2008 -NR- SUN | -NR- 24AUG08 -2 Days = 22 AUG 2008 -NR- SAT | -NR- 24AUG08 -3 Days = 21 AUG 2008 -NR- FRI | -NR- 24AUG08 -4 Days = 20 AUG 2008 -NR- THU | -NR- 24AUG08 -5 Days = 19 AUG 2008 -NR- WED | -NR- 24AUG08 -6 Days = 18 AUG 2008 -NR- TUE | -NR- 24AUG08 -7 Days = 17 AUG 2008 -NR- MON | -NR- 24AUG08 -8 Days = 16 AUG 2008 -NR- SUN | -NR- 24AUG08 -9 Days = 15 AUG 2008 -NR- SAT | -NR- 24AUG08 -10 Days = 14 AUG 2008 -NR- FRI | -NR- 24AUG08 -11 Days = 13 AUG 2008 -NR- THU | -NR- 24AUG08 -12 Days = 12 AUG 2008 -NR- WED | -NR- 24AUG08 -13 Days = 11 AUG 2008 -NR- TUE | -NR- ______________________________________________________________________________ ______________________________________________________________________________ S65E Average Flow over previous 14 days | Avg-Daily Flow 24AUG08 Today= 24 AUG 2008 5914 MON | 15536 24AUG08 -1 Day = 23 AUG 2008 5039 SUN | 16039 24AUG08 -2 Days = 22 AUG 2008 4107 SAT | 16948 24AUG08 -3 Days = 21 AUG 2008 2986 FRI | 13778 24AUG08 -4 Days = 20 AUG 2008 2089 THU | 7677 24AUG08 -5 Days = 19 AUG 2008 1657 WED | 945 24AUG08 -6 Days = 18 AUG 2008 1799 TUE | 805 24AUG08 -7 Days = 17 AUG 2008 1914 MON | 61 24AUG08 -8 Days = 16 AUG 2008 2087 SUN | 846 24AUG08 -9 Days = 15 AUG 2008 2187 SAT | 2466 24AUG08 -10 Days = 14 AUG 2008 2221 FRI | 1652 24AUG08 -11 Days = 13 AUG 2008 2281 THU | 1910 24AUG08 -12 Days = 12 AUG 2008 2338 WED | 2139 24AUG08 -13 Days = 11 AUG 2008 2382 TUE | 1999 ______________________________________________________________________________ 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) 24 AUG 2008 -NR- -NR- 5087 9290 147 0 23 AUG 2008 -NR- -NR- 6658 -NR- 87 0 22 AUG 2008 -NR- -NR- 5800 -NR- -1889 -5973 21 AUG 2008 -NR- -NR- 7502 13088 -3860 -13437 20 AUG 2008 -NR- -NR- 8254 14286 -4744 -17183 19 AUG 2008 -NR- -NR- 4241 7129 -754 -3573 18 AUG 2008 -NR- -NR- 1727 2359 -534 -3113 17 AUG 2008 -NR- -NR- 0 5 -NR- -462 16 AUG 2008 -NR- -NR- 0 7 -NR- -4307 15 AUG 2008 -NR- -NR- 0 2 -218 -1216 14 AUG 2008 -NR- -NR- 0 2 -428 -1672 13 AUG 2008 -NR- -NR- 0 7 -202 0 12 AUG 2008 -NR- -NR- 0 0 -34 0 11 AUG 2008 -NR- -NR- 0 -NR- -311 -873 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) 24 AUG 2008 21751 -NR- -NR- -NR- -NR- -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 18 AUG 2008 5789 -NR- -NR- -NR- -NR- -1210 17 AUG 2008 1563 -NR- -NR- -NR- -NR- -NR- 16 AUG 2008 1587 -NR- -NR- -NR- -NR- -1130 15 AUG 2008 1766 -NR- -NR- -NR- -NR- -1096 14 AUG 2008 1605 -NR- -NR- -NR- -NR- -1065 13 AUG 2008 -NR- -NR- -NR- -NR- -NR- -1071 12 AUG 2008 1880 -NR- -NR- -NR- -NR- -1029 11 AUG 2008 1436 -NR- -NR- -NR- -NR- -1108 *** 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 25AUG2008 @ 16:15 ** Preliminary Data - Subject to Revision **