U. S. Army Corps of Engineers, Jacksonville District Lake Okeechobee and Vicinity Report Data Ending 2400 hours 29 JUN 2008 _____________________________________________________________________________ Okeechobee Lake Regulation Elevation Last Year 2YRS Ago (ft-NGVD) (ft-NGVD) (ft-NGVD) *Okeechobee Lake Elevation 9.61 8.88 12.01 (Official Elv) Bottom of High Lake Mngmt= 16.13 Top of Water Short Mngmt= 11.08 Currently in Water Shortage Management Band 29JUN (1965-2006) Period of Record Average 13.50 Difference from POR Average -3.89 Simulated Average LORS2008 [1965-2000] 12.24 Difference from Average LORS2008 -2.63 Today Lake Okechobee elevation is determined from the 4 interior stations ++Navigation Depths (Based on 2001 Channel Condition Survey) Route 1 ÷ 3.55' Route 2 ÷ 0.95' Bridge Clearance = 51.61' ______________________________________________________________________________ 4 Interior and 4 Edge Okeechobee Lake Average (Avg-Daily values): (BAD) L001 L005 L006 LZ40 S4 S352 S308 S133 9.52 9.64 9.59 9.69 10.24 9.80 9.60 9.73 *Combination Okeechobee Avg-Daily Lake Average = 9.72 (*See Note) Interior Okeechobee Lake Average (Avg-Daily values): L001 L005 L006 LZ40 9.52 9.64 9.59 9.69 *Interior Okeechobee Avg-Daily Lake Average = 9.61 (*See Note) Okeechobee Lake Average (Avg-Daily values): (BAD) (BAD) (BAD) (BAD) (BAD) C5 S4 S3 S2 S352 S308 S135 S133 S127 S129 10.85 10.24 10.12 10.04 9.80 9.60 10.06 9.73 6.50 10.96 *Edge Okeechobee Avg-Daily Lake Average = 9.79 (*See Note) ______________________________________________________________________________ Okeechobee Inflows (cfs): S65E 376 S191 -NR- Fisheating Cr -NR- S154 0 S133 Pumps 0 S135 Pumps 0 S84 25 S127 Pumps 0 S2 Pumps -NR- S71 973 S129 Pumps 0 S3 Pumps 0 S72 234 S131 Pumps 0 S4 Pumps 0 Total Inflows: 1608 Okeechobee Outflows (cfs): S135 Culverts 0 S354 0 S77 272 S127 Culverts -NR- S351 0 S308 (BAD) -940 S129 Culverts 0 S352 -NR- S131 Culverts L8 Canal Pt -426 C5 -NR- Total Outflows: -1094 (BAD VALUE) Okeechobee Pan Evaporation (inches): S77 0.26 S308 0.43 Average Pan Evap x 0.75 Pan Coefficient = 0.26" = 0.02' Lake Average Precipitation using NEXRAD: = 0.32" = 0.03' Evaporation - Precipitation: = -0.06" = -0.01' Evaporation - Precipitation using Lake Area of 730 square miles is equal to 1202 cfs into the lake. Lake Okeechobee (Change in Storage) Flow is 4689 cfs or 9300 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: 13.09 9.67 0 0 0 0 0 0 (cfs) S193: ______ S191: 19.71 10.07 -NR- 0.0 -NR- 0.0 S135 Pumps: 10.25 10.04 0 0 0 0 0 (cfs) S135 Culverts: 0 0.0 0.0 North West Shore S65E: 21.08 9.39 376 0.1 0.1 0.0 0.0 0.0 0.0 S127 Pumps: 6.51 6.48 0 0 0 0 0 0 (cfs) S127 Culvert: -NR- -NR- S129 Pumps: 10.52 10.94 0 0 0 0 (cfs) S129 Culvert: 0 0.0 S131 Pumps: 11.75 11.27 0 0 0 (cfs) S131 Culvert: Fisheating Creek nr Palmdale ______ -NR- nr Lakeport ______ C5: ______ 10.85 -NR- -NR- -NR- -NR- South Shore S4 Pumps: 10.46 10.18 0 0 0 0 (cfs) S169: 9.96 10.55 0 0.0 0.0 0.0 S310: ______ -NR- S3 Pumps: ______ -NR- 0 0 0 0 (cfs) S354: -NR- ______ 0 -NR- -NR- S2 Pumps: 9.25 10.04 -NR- -NR- 0 0 -NR- (cfs) S351: 10.04 9.25 0 -NR- -NR- -NR- S352: ______ -NR- -NR- -NR- -NR- C10A: -NR- 11.00 -NR- -NR- 8.0 -NR- -NR- L8 Canal PT 11.04 -426 _________________________________________________________________________ Temporary Pumps S351: 9.25 10.04 0 -NR--NR--NR--NR--NR--NR- S352: -NR- ______ -NR- -NR--NR--NR--NR- S354: ______ -NR- 0 -NR--NR--NR--NR- _________________________________________________________________________ Caloosahatchee River (S77, S78, S79) S47B: 11.27 12.42 0.0 0.0 S47D: 12.39 10.97 44 0.0 S77: Spillway and Sector Flow: 11.22 11.09 272 5.0 5.0 5.0 5.0 Flow Due to Lockages+: 0 S77 Below USGS Flow Gage -796 (TESTING) S78: Spillway and Sector Flow: 11.12 3.12 285 0.0 0.0 0.0 0.0 Flow Due to Lockages+: 5 S79: Spillway and Sector Flow: 3.30 0.29 1042 0.0 0.0 0.0 0.5 0.5 0.0 0.0 0.0 Flow Due to Lockages+: 2 Percent of flow from S77 26% Chloride (ppm) 135 St. Lucie Canal (S308, S80) S308: Spillway and Sector Flow: 9.60 11.89 -938 0.0 0.0 0.0 0.0 Flow Due to Lockages+: -2 S308 Below USGS Flow Gage -111 S153: 18.80 11.91 0 0.0 0.0 S80: Spillway and Sector Flow: 12.00 0.02 0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 Flow Due to Lockages+: 2 Percent of flow from S308 -NR-% Steele Point Top Salinity (mg/ml) 30 Steele Point Bottom Salinity (mg/ml) 30 Speedy Point Top Salinity (mg/ml) 21 Speedy Point Bottom Salinity (mg/ml) 24 + 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 0.00 5.33 S193: -NR- 0.00 0.00 -NR- -NR- Okeechobee Field Station: 0.00 0.00 2.50 S135 Pump Station: 0.00 0.26 1.39 S127 Pump Station: 0.01 0.01 4.25 S129 Pump Station: 0.02 0.02 0.65 S131 Pump Station: 0.03 0.03 2.67 S77: 0.42 0.56 19.19 301 1 S78: 0.16 0.16 1.41 64 0 S79: 0.11 0.13 1.62 43 0 S4 Pump Station: -NR- 0.00 0.00 Clewiston Field Station: 0.85 0.85 2.02 S3 Pump Station: 0.14 0.40 2.37 S2 Pump Station: 0.00 0.00 1.22 S308: 0.85 0.85 1.53 175 0 S80: 0.01 0.24 2.81 28 0 Okeechobee Average 0.21 0.23 3.32 (Sites S78, S79 and S80 not included) ______________________________________________________________________________ Okeechobee Lake Elevations 29 JUN 2008 9.61 Difference from 29JUN08 29JUN08 -1 Day = 28 JUN 2008 9.58 -0.03 29JUN08 -2 Days = 27 JUN 2008 9.56 -0.05 29JUN08 -3 Days = 26 JUN 2008 9.48 -0.13 29JUN08 -4 Days = 25 JUN 2008 9.37 -0.24 29JUN08 -5 Days = 24 JUN 2008 9.37 -0.24 29JUN08 -6 Days = 23 JUN 2008 9.32 -0.29 29JUN08 -7 Days = 22 JUN 2008 9.29 -0.32 29JUN08 -30 Days = 30 MAY 2008 9.63 0.02 29JUN08 -1 Year = 29 JUN 2007 8.88 -0.73 29JUN08 -2 Year = 29 JUN 2006 12.01 2.40 ______________________________________________________________________________ Long Term Mean 30day Avearge ET for Lake Alfred (Inches) = 4.66 ______________________________________________________________________________ Lake Okeechobee Net Inflow (LONIN) Average Flow over the previous 14 days | Avg-Daily Flow 29JUN08 Today = 29 JUN 2008 -NR- MON | -NR- 29JUN08 -1 Day = 28 JUN 2008 -NR- SUN | -NR- 29JUN08 -2 Days = 27 JUN 2008 -NR- SAT | -NR- 29JUN08 -3 Days = 26 JUN 2008 -NR- FRI | -NR- 29JUN08 -4 Days = 25 JUN 2008 -NR- THU | -NR- 29JUN08 -5 Days = 24 JUN 2008 -NR- WED | -NR- 29JUN08 -6 Days = 23 JUN 2008 -NR- TUE | -NR- 29JUN08 -7 Days = 22 JUN 2008 -NR- MON | -NR- 29JUN08 -8 Days = 21 JUN 2008 -NR- SUN | -NR- 29JUN08 -9 Days = 20 JUN 2008 -NR- SAT | -NR- 29JUN08 -10 Days = 19 JUN 2008 -NR- FRI | -NR- 29JUN08 -11 Days = 18 JUN 2008 -NR- THU | -NR- 29JUN08 -12 Days = 17 JUN 2008 -NR- WED | -NR- 29JUN08 -13 Days = 16 JUN 2008 -NR- TUE | -NR- ______________________________________________________________________________ ______________________________________________________________________________ S65E Average Flow over previous 14 days | Avg-Daily Flow 29JUN08 Today= 29 JUN 2008 293 MON | 376 29JUN08 -1 Day = 28 JUN 2008 292 SUN | 481 29JUN08 -2 Days = 27 JUN 2008 258 SAT | 0 29JUN08 -3 Days = 26 JUN 2008 267 FRI | 69 29JUN08 -4 Days = 25 JUN 2008 304 THU | 264 29JUN08 -5 Days = 24 JUN 2008 321 WED | 426 29JUN08 -6 Days = 23 JUN 2008 290 TUE | 512 29JUN08 -7 Days = 22 JUN 2008 254 MON | 193 29JUN08 -8 Days = 21 JUN 2008 240 SUN | 444 29JUN08 -9 Days = 20 JUN 2008 218 SAT | 338 29JUN08 -10 Days = 19 JUN 2008 221 FRI | 0 29JUN08 -11 Days = 18 JUN 2008 221 THU | 212 29JUN08 -12 Days = 17 JUN 2008 206 WED | 673 29JUN08 -13 Days = 16 JUN 2008 165 TUE | 119 ______________________________________________________________________________ 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) 29 JUN 2008 631 539 376 575 -220 -1865 28 JUN 2008 -1490 -2420 249 -NR- 50 0 27 JUN 2008 -1553 -2550 484 -NR- 30 -6 26 JUN 2008 -1036 -1626 0 -NR- -122 -1333 25 JUN 2008 -488 -619 191 -NR- -201 -2520 24 JUN 2008 0 -1 516 983 -331 -4057 23 JUN 2008 -215 -375 206 251 -98 -1222 22 JUN 2008 -136 -195 0 -NR- -76 -5 21 JUN 2008 0 -2 0 7 -242 -2682 20 JUN 2008 0 0 0 4 -186 -1187 19 JUN 2008 0 -1 0 8 -133 -6 18 JUN 2008 0 -0 0 6 -64 -8 17 JUN 2008 0 0 0 9 -77 -3 16 JUN 2008 0 -0 0 11 -51 -314 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) 29 JUN 2008 2070 -NR- 0 -NR- 0 -844 28 JUN 2008 2245 -NR- 0 -NR- 0 -762 27 JUN 2008 1512 -NR- 0 -NR- 0 -707 26 JUN 2008 1141 -NR- 0 -NR- 0 -600 25 JUN 2008 2487 -NR- 0 -NR- 0 -785 24 JUN 2008 3175 -NR- 0 -NR- 0 -667 23 JUN 2008 1532 -NR- 0 -NR- 0 -488 22 JUN 2008 604 -NR- 0 -NR- 0 5 21 JUN 2008 1181 -NR- 0 -NR- 0 3 20 JUN 2008 83 -NR- 0 -NR- 0 3 19 JUN 2008 156 -NR- 0 -NR- 0 3 18 JUN 2008 143 -NR- 0 -NR- 0 -53 17 JUN 2008 955 -NR- 0 -NR- 0 -190 16 JUN 2008 372 -NR- 0 -NR- 0 -95 *** 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 30JUN2008 @ 14:15 ** Preliminary Data - Subject to Revision **