U. S. Army Corps of Engineers, Jacksonville District Lake Okeechobee and Vicinity Report Data Ending 2400 hours 10 FEB 2008 _____________________________________________________________________________ Okeechobee Lake Regulation Elevation Last Year 2YRS Ago (ft-NGVD) (ft-NGVD) (ft-NGVD) *Okeechobee Lake Elevation 9.99 11.50 15.56 (Official Elv) Regulation Zone Elevations B= 18.50 C= 17.42 D= 16.61 E= 14.42 10FEB (1965-2006) Period of Record Average 14.67 Difference from POR Average -4.68 Simulated Average LORSS2007 TSP[1965-2000] 13.44 Difference from Average LORSS2007 TSP -3.45 Today Lake Okechobee elevation is determined from the 4 interior stations ++Navigation Depths (Based on 2001 Channel Condition Survey) Route 1 ÷ 3.93' Route 2 ÷ 1.33' Bridge Clearance = 53.10' ______________________________________________________________________________ 4 Interior and 4 Edge Okeechobee Lake Average (Avg-Daily values): (BAD) L001 L005 L006 LZ40 S4 S352 S308 S133 9.56 10.02 10.23 10.16 10.56 10.32 9.87 9.65 *Combination Okeechobee Avg-Daily Lake Average = 10.05 (*See Note) Interior Okeechobee Lake Average (Avg-Daily values): L001 L005 L006 LZ40 9.56 10.02 10.23 10.16 *Interior Okeechobee Avg-Daily Lake Average = 9.99 (*See Note) Okeechobee Lake Average (Avg-Daily values): (BAD) (BAD) (BAD) (BAD) (BAD) C5 S4 S3 S2 S352 S308 S135 S133 S127 S129 10.38 10.56 10.64 10.49 10.32 9.87 10.58 9.65 10.94 10.50 *Edge Okeechobee Avg-Daily Lake Average = 10.39 (*See Note) ______________________________________________________________________________ Okeechobee Inflows (cfs): S65E 173 S191 -NR- Fisheating Cr -NR- S154 0 S133 Pumps 0 S135 Pumps 0 S84 0 S127 Pumps 0 S2 Pumps 0 S71 0 S129 Pumps 0 S3 Pumps 0 S72 0 S131 Pumps 0 S4 Pumps 0 Total Inflows: 173 Okeechobee Outflows (cfs): S135 Culverts 0 S354 0 S77 245 S127 Culverts -NR- S351 -NR- S308 (BAD) -9 S129 Culverts 0 S352 -NR- S131 Culverts L8 Canal Pt -8 C5 -NR- Total Outflows: 228 (BAD VALUE) Okeechobee Pan Evaporation (inches): S77 0.28 S308 0.28 Average Pan Evap x 0.75 Pan Coefficient = 0.21" = 0.02' Lake Average Precipitation using NEXRAD: = 0.00" = 0.00' Evaporation - Precipitation: = 0.21" = 0.02' Evaporation - Precipitation using Lake Area of 730 square miles is equal to 4122 cfs out of the lake. Lake Okeechobee (Change in Storage) Flow is -3227 cfs or -6400 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: 12.31 9.58 0 0 0 0 0 0 (cfs) S193: ______ S191: 19.16 10.07 -NR- 0.0 0.0 -NR- S135 Pumps: 11.65 10.56 0 0 0 0 0 (cfs) S135 Culverts: 0 0.0 0.0 North West Shore S65E: 20.94 9.25 173 0.0 0.0 0.0 0.0 0.0 0.0 S127 Pumps: 12.46 -NR- 0 0 0 0 0 0 (cfs) S127 Culvert: -NR- -NR- S129 Pumps: 10.14 10.51 0 0 0 0 (cfs) S129 Culvert: 0 0.0 S131 Pumps: 10.86 9.90 0 0 0 (cfs) S131 Culvert: Fisheating Creek nr Palmdale ______ -NR- nr Lakeport ______ C5: ______ 10.38 -NR- -NR- -NR- -NR- South Shore S4 Pumps: 10.43 10.87 0 0 0 0 (cfs) S169: 10.95 10.58 0 0.0 0.0 0.0 S310: ______ -NR- S3 Pumps: ______ -NR- 0 0 0 0 (cfs) S354: -NR- ______ 0 -NR- -NR- S2 Pumps: 8.96 10.72 0 0 0 0 0 (cfs) S351: 10.72 8.96 -NR- -NR- -NR- -NR- S352: ______ -NR- -NR- -NR- -NR- C10A: -NR- 9.90 -NR- -NR- 8.0 -NR- -NR- L8 Canal PT 9.99 -8 _________________________________________________________________________ Temporary Pumps S351: 8.96 10.72 -NR- -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: 10.34 10.39 0.0 0.0 S47D: 10.45 10.06 0 0.0 S77: Spillway and Sector Flow: 10.54 10.18 244 0.8 0.8 0.8 0.8 Flow Due to Lockages+: 1 S78: Spillway and Sector Flow: 10.19 3.08 36 0.0 0.0 0.0 0.0 Flow Due to Lockages+: 8 S79: Spillway and Sector Flow: 3.11 -0.30 0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 Flow Due to Lockages+: 2 Percent of flow from S77 -NR-% Chloride (ppm) 167 St. Lucie Canal (S308, S80) S308: Spillway and Sector Flow: 9.77 10.40 -9 0.0 0.0 0.0 0.0 Flow Due to Lockages+: 0 S308 Below USGS Flow Gage -61 S153: 18.79 10.27 34 0.0 0.0 S80: Spillway and Sector Flow: 10.41 0.78 0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 Flow Due to Lockages+: 3 Percent of flow from S308 -NR-% Steele Point Top Salinity (mg/ml) 30 Steele Point Bottom Salinity (mg/ml) 32 Speedy Point Top Salinity (mg/ml) 20 Speedy Point Bottom Salinity (mg/ml) 25 + 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 0.39 0.39 S193: -NR- 0.00 0.00 -NR- -NR- Okeechobee Field Station: 0.00 1.05 1.05 S135 Pump Station: 0.00 0.05 0.05 S127 Pump Station: 0.00 0.00 0.00 S129 Pump Station: 0.00 0.02 0.02 S131 Pump Station: 0.00 0.00 0.00 S77: 0.00 0.90 0.90 321 6 S78: 0.01 0.16 0.19 71 4 S79: 0.00 0.00 0.00 51 5 S4 Pump Station: -NR- 0.00 0.00 Clewiston Field Station: 0.00 1.05 1.05 S3 Pump Station: 0.00 0.85 0.85 S2 Pump Station: 0.00 0.22 0.22 S308: 0.00 0.23 0.23 92 3 S80: 0.00 0.85 0.85 15 1 Okeechobee Average 0.00 0.37 0.37 (Sites S78, S79 and S80 not included) ______________________________________________________________________________ Okeechobee Lake Elevations 10 FEB 2008 9.99 Difference from 10FEB08 10FEB08 -1 Day = 09 FEB 2008 10.01 0.02 10FEB08 -2 Days = 08 FEB 2008 10.01 0.02 10FEB08 -3 Days = 07 FEB 2008 10.02 0.03 10FEB08 -4 Days = 06 FEB 2008 10.04 0.05 10FEB08 -5 Days = 05 FEB 2008 10.05 0.06 10FEB08 -6 Days = 04 FEB 2008 10.05 0.06 10FEB08 -7 Days = 03 FEB 2008 10.05 0.06 10FEB08 -30 Days = 11 JAN 2008 10.13 0.14 10FEB08 -1 Year = 10 FEB 2007 11.50 1.51 10FEB08 -2 Year = 10 FEB 2006 15.56 5.57 ______________________________________________________________________________ Long Term Mean 30day Avearge ET for Lake Alfred (Inches) = 2.29 ______________________________________________________________________________ Lake Okeechobee Net Inflow (LONIN) Average Flow over the previous 14 days | Avg-Daily Flow 10FEB08 Today = 10 FEB 2008 -712 MON | -NR- 10FEB08 -1 Day = 09 FEB 2008 -1069 SUN | -NR- 10FEB08 -2 Days = 08 FEB 2008 -770 SAT | -NR- 10FEB08 -3 Days = 07 FEB 2008 -1031 FRI | -NR- 10FEB08 -4 Days = 06 FEB 2008 -1095 THU | -NR- 10FEB08 -5 Days = 05 FEB 2008 -1014 WED | -NR- 10FEB08 -6 Days = 04 FEB 2008 -817 TUE | -NR- 10FEB08 -7 Days = 03 FEB 2008 -144 MON | 1639 10FEB08 -8 Days = 02 FEB 2008 -645 SUN | -3516 10FEB08 -9 Days = 01 FEB 2008 -274 SAT | -1735 10FEB08 -10 Days = 31 JAN 2008 -162 FRI | 262 10FEB08 -11 Days = 30 JAN 2008 -197 THU | 46 10FEB08 -12 Days = 29 JAN 2008 116 WED | 1886 10FEB08 -13 Days = 28 JAN 2008 -488 TUE | -3563 ______________________________________________________________________________ ______________________________________________________________________________ S65-E Average Flow over previous 14 days | Avg-Daily Flow 10FEB08 Today= 10 FEB 2008 247 MON | 173 10FEB08 -1 Day = 09 FEB 2008 235 SUN | 375 10FEB08 -2 Days = 08 FEB 2008 208 SAT | 102 10FEB08 -3 Days = 07 FEB 2008 203 FRI | 325 10FEB08 -4 Days = 06 FEB 2008 189 THU | 326 10FEB08 -5 Days = 05 FEB 2008 173 WED | 345 10FEB08 -6 Days = 04 FEB 2008 156 TUE | 273 10FEB08 -7 Days = 03 FEB 2008 161 MON | 62 10FEB08 -8 Days = 02 FEB 2008 179 SUN | 361 10FEB08 -9 Days = 01 FEB 2008 179 SAT | 652 10FEB08 -10 Days = 31 JAN 2008 144 FRI | 465 10FEB08 -11 Days = 30 JAN 2008 123 THU | 0 10FEB08 -12 Days = 29 JAN 2008 134 WED | 0 10FEB08 -13 Days = 28 JAN 2008 146 TUE | 0 ______________________________________________________________________________ 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) 10 FEB 2008 305 486 0 87 -121 -18 09 FEB 2008 295 509 159 275 -16 -0 08 FEB 2008 363 611 156 273 31 12 07 FEB 2008 315 541 156 275 201 143 06 FEB 2008 230 413 106 154 388 71 05 FEB 2008 266 453 0 -NR- 144 1 04 FEB 2008 123 71 0 12 7 -0 03 FEB 2008 -96 -250 0 18 -41 -0 02 FEB 2008 -22 26 0 18 11 0 01 FEB 2008 -70 60 0 -NR- 17 1 31 JAN 2008 329 520 -NR- -NR- 38 0 30 JAN 2008 116 76 0 6 -35 0 29 JAN 2008 119 214 0 15 -67 -1 28 JAN 2008 -34 -75 0 22 -92 -2 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) 10 FEB 2008 5 -NR- -NR- -NR- 0 -15 09 FEB 2008 4 -NR- -NR- -NR- 0 -6 08 FEB 2008 4 -NR- -NR- -NR- 0 -4 07 FEB 2008 4 -NR- -NR- -NR- 0 1 06 FEB 2008 2 -NR- -NR- -NR- 0 -5 05 FEB 2008 4 -NR- -NR- -NR- 0 -8 04 FEB 2008 3 -NR- -NR- -NR- 0 -7 03 FEB 2008 5 -NR- 0 0 0 -21 02 FEB 2008 3 -NR- 0 0 0 -2 01 FEB 2008 -NR- -NR- 0 0 0 -8 31 JAN 2008 5 -NR- 0 0 0 -4 30 JAN 2008 4 -NR- 0 0 0 16 29 JAN 2008 4 -NR- 0 0 0 26 28 JAN 2008 5 -NR- 0 0 0 8 *** 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 11FEB2008 @ 14:15 ** Preliminary Data - Subject to Revision **