U. S. Army Corps of Engineers, Jacksonville District Lake Okeechobee and Vicinity Report Data Ending 2400 hours 16 DEC 2007 _____________________________________________________________________________ Okeechobee Lake Regulation Elevation Last Year 2YRS Ago (ft-NGVD) (ft-NGVD) (ft-NGVD) *Okeechobee Lake Elevation 10.29 12.09 16.08 (Official Elv) Regulation Zone Elevations B= 18.50 C= 17.75 D= 17.00 E= 14.88 16DEC (1965-2006) Period of Record Average 14.82 Difference from POR Average -4.53 Simulated Average LORSS2007 TSP[1965-2000] 13.62 Difference from Average LORSS2007 TSP -3.34 Today Lake Okechobee elevation is determined from the 4 interior stations ++Navigation Depths (Based on 2001 Channel Condition Survey) Route 1 ÷ 4.23' Route 2 ÷ 1.63' Bridge Clearance = -NR-' ______________________________________________________________________________ 4 Interior and 4 Edge Okeechobee Lake Average (Avg-Daily values): (BAD) L001 L005 L006 LZ40 S4 S352 S308 S133 10.31 10.07 10.34 10.45 10.27 10.74 10.54 10.56 *Combination Okeechobee Avg-Daily Lake Average = 10.41 (*See Note) Interior Okeechobee Lake Average (Avg-Daily values): L001 L005 L006 LZ40 10.31 10.07 10.34 10.45 *Interior Okeechobee Avg-Daily Lake Average = 10.29 (*See Note) Okeechobee Lake Average (Avg-Daily values): (BAD) (BAD) (BAD) (BAD) (BAD) C5 S4 S3 S2 S352 S308 S135 S133 S127 S129 10.01 10.27 10.44 10.44 10.74 10.54 10.65 10.56 11.20 11.00 *Edge Okeechobee Avg-Daily Lake Average = 10.59 (*See Note) ______________________________________________________________________________ Okeechobee Inflows (cfs): S65E 250 S191 0 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: 250 Okeechobee Outflows (cfs): S135 Culverts 0 S354 0 S77 -120 S127 Culverts -NR- S351 0 S308 (BAD) -NR- S129 Culverts 0 S352 0 S131 Culverts L8 Canal Pt -75 C5 -NR- Total Outflows: No Report Due To Missing S77 or S308 Discharge Data Okeechobee Pan Evaporation (inches): S77 0.11 S308 0.35 Average Pan Evap x 0.75 Pan Coefficient = 0.17" = 0.01' Lake Average Precipitation using NEXRAD: = 0.02" = 0.00' Evaporation - Precipitation: = 0.15" = 0.01' Evaporation - Precipitation using Lake Area of 730 square miles is equal to 2993 cfs out of the lake. Lake Okeechobee (Change in Storage) Flow is -6605 cfs or -13100 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: 12.68 9.94 0 0 0 0 0 0 (cfs) S193: ______ S191: 19.50 10.07 0 0.0 0.0 0.0 S135 Pumps: 12.25 10.65 0 0 0 0 0 (cfs) S135 Culverts: 0 0.0 0.0 North West Shore S65E: 20.95 9.46 250 0.0 0.0 0.0 0.0 0.0 0.0 S127 Pumps: 13.13 -NR- 0 0 0 0 0 0 (cfs) S127 Culvert: -NR- -NR- S129 Pumps: 10.38 11.06 0 0 0 0 (cfs) S129 Culvert: 0 0.0 S131 Pumps: 11.44 10.34 0 0 0 (cfs) S131 Culvert: Fisheating Creek nr Palmdale ______ -NR- nr Lakeport ______ C5: ______ 10.01 -NR- -NR- -NR- -NR- South Shore S4 Pumps: 10.76 10.48 0 0 0 0 (cfs) S169: 10.50 10.89 0 0.0 0.0 0.0 S310: ______ -NR- S3 Pumps: 9.59 10.81 0 0 0 0 (cfs) S354: 10.81 9.59 0 0.0 0.0 S2 Pumps: 10.88 10.87 0 0 0 0 0 (cfs) S351: 10.87 10.88 0 -NR- -NR- -NR- S352: 10.92 10.55 0 0.0 -NR- C10A: -NR- 11.14 -NR- -NR- 8.0 -NR- -NR- L8 Canal PT 11.24 -75 _________________________________________________________________________ Temporary Pumps S351: 10.88 10.87 0 -NR--NR--NR--NR--NR--NR- S352: 10.55 10.92 0 -NR--NR--NR--NR- S354: 9.59 10.81 0 -NR--NR--NR--NR- _________________________________________________________________________ Caloosahatchee River (S77, S78, S79) S47B: 10.17 10.22 5.7 5.8 S47D: 10.27 11.10 0 0.0 S77: Spillway and Sector Flow: 10.31 11.24 -120 0.5 0.5 0.5 0.5 Flow Due to Lockages+: -0 S78: Spillway and Sector Flow: 11.23 3.42 0 0.0 0.0 0.0 0.0 Flow Due to Lockages+: 4 S79: Spillway and Sector Flow: 3.72 0.57 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) 162 St. Lucie Canal (S308, S80) S308: Spillway and Sector Flow: -NR- -NR- -NR- 2.5 2.5 2.5 2.5 Flow Due to Lockages+: -NR- S308 Below USGS Flow Gage -439 S153: 18.95 10.69 120 0.0 0.5 S80: Spillway and Sector Flow: 11.22 -0.63 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) 19 Steele Point Bottom Salinity (mg/ml) 20 Speedy Point Top Salinity (mg/ml) 15 Speedy Point Bottom Salinity (mg/ml) -N + 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- 1.16 1.19 S193: -NR- 0.00 0.00 -NR- -NR- Okeechobee Field Station: -NR- 1.45 1.48 S135 Pump Station: -NR- 1.62 1.67 S127 Pump Station: -NR- 1.05 1.29 S129 Pump Station: -NR- 1.50 1.50 S131 Pump Station: -NR- 1.27 1.27 S77: 0.04 3.14 3.28 229 5 S78: 0.06 3.94 4.03 62 4 S79: 0.06 0.73 0.77 288 1 S4 Pump Station: -NR- 0.00 0.00 Clewiston Field Station: -NR- 1.15 1.34 S3 Pump Station: -NR- 0.39 0.57 S2 Pump Station: -NR- 0.44 0.50 S308: 0.25 1.96 2.22 -NR- -NR- S80: 0.11 2.14 5.87 9 8 Okeechobee Average 0.14 1.16 1.25 (Sites S78, S79 and S80 not included) ______________________________________________________________________________ Okeechobee Lake Elevations 16 DEC 2007 10.29 Difference from 16DEC07 16DEC07 -1 Day = 15 DEC 2007 10.33 0.04 16DEC07 -2 Days = 14 DEC 2007 10.20 -0.09 16DEC07 -3 Days = 13 DEC 2007 10.15 -0.14 16DEC07 -4 Days = 12 DEC 2007 10.16 -0.13 16DEC07 -5 Days = 11 DEC 2007 10.18 -0.11 16DEC07 -6 Days = 10 DEC 2007 10.18 -0.11 16DEC07 -7 Days = 09 DEC 2007 10.19 -0.10 16DEC07 -30 Days = 16 NOV 2007 10.29 0.00 16DEC07 -1 Year = 16 DEC 2006 12.09 1.80 16DEC07 -2 Year = 16 DEC 2005 16.08 5.79 ______________________________________________________________________________ Long Term Mean 30day Avearge ET for Lake Alfred = 2.11 ______________________________________________________________________________ Lake Okeechobee Net Inflow (LONIN) Average Flow over the previous 14 days | Avg-Daily Flow 16DEC07 Today = 16 DEC 2007 2948 MON | -NR- 16DEC07 -1 Day = 15 DEC 2007 2948 SUN | 17758 16DEC07 -2 Days = 14 DEC 2007 480 SAT | 6818 16DEC07 -3 Days = 13 DEC 2007 -788 FRI | -1516 16DEC07 -4 Days = 12 DEC 2007 -606 THU | -3085 16DEC07 -5 Days = 11 DEC 2007 221 WED | 381 16DEC07 -6 Days = 10 DEC 2007 141 TUE | -1512 16DEC07 -7 Days = 09 DEC 2007 -NR- MON | 1794 16DEC07 -8 Days = 08 DEC 2007 -NR- SUN | -NR- 16DEC07 -9 Days = 07 DEC 2007 -NR- SAT | -NR- 16DEC07 -10 Days = 06 DEC 2007 -NR- FRI | -NR- 16DEC07 -11 Days = 05 DEC 2007 -NR- THU | -NR- 16DEC07 -12 Days = 04 DEC 2007 -NR- WED | -NR- 16DEC07 -13 Days = 03 DEC 2007 -NR- TUE | -NR- ______________________________________________________________________________ ______________________________________________________________________________ S65-E Average Flow over previous 14 days | Avg-Daily Flow 16DEC07 Today= 16 DEC 2007 347 MON | 250 16DEC07 -1 Day = 15 DEC 2007 364 SUN | 541 16DEC07 -2 Days = 14 DEC 2007 362 SAT | 223 16DEC07 -3 Days = 13 DEC 2007 355 FRI | 231 16DEC07 -4 Days = 12 DEC 2007 338 THU | 751 16DEC07 -5 Days = 11 DEC 2007 298 WED | 754 16DEC07 -6 Days = 10 DEC 2007 282 TUE | 280 16DEC07 -7 Days = 09 DEC 2007 282 MON | 334 16DEC07 -8 Days = 08 DEC 2007 283 SUN | 233 16DEC07 -9 Days = 07 DEC 2007 292 SAT | 0 16DEC07 -10 Days = 06 DEC 2007 328 FRI | 230 16DEC07 -11 Days = 05 DEC 2007 364 THU | 674 16DEC07 -12 Days = 04 DEC 2007 338 WED | 234 16DEC07 -13 Days = 03 DEC 2007 325 TUE | 122 ______________________________________________________________________________ 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) 16 DEC 2007 -188 -238 0 9 -871 -NR- 15 DEC 2007 -2 -36 0 12 -1584 -6641 14 DEC 2007 155 214 0 12 -444 -3192 13 DEC 2007 172 294 0 8 6 -0 12 DEC 2007 186 310 0 10 -13 -0 11 DEC 2007 179 286 0 18 -73 17 10 DEC 2007 78 71 0 8 -NR- -0 09 DEC 2007 140 258 0 18 -NR- -1 08 DEC 2007 276 457 0 12 -10 -0 07 DEC 2007 290 540 0 10 -234 -0 06 DEC 2007 260 485 0 11 -73 -0 05 DEC 2007 134 183 0 11 -107 -1 04 DEC 2007 0 1 0 18 -92 -1 03 DEC 2007 0 -NR- 0 22 -197 -819 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) 16 DEC 2007 3 -NR- 0 0 0 -148 15 DEC 2007 5 -NR- 0 0 0 -7 14 DEC 2007 2 -NR- 0 0 0 -14 13 DEC 2007 3 -NR- 0 0 0 -7 12 DEC 2007 4 -NR- 0 173 0 -4 11 DEC 2007 4 -NR- 0 436 0 17 10 DEC 2007 5 -NR- 36 173 0 21 09 DEC 2007 5 -NR- 0 0 0 -11 08 DEC 2007 2 -NR- 0 -NR- 0 -NR- 07 DEC 2007 3 -NR- 0 -NR- 0 -NR- 06 DEC 2007 4 -NR- 0 -NR- 0 -NR- 05 DEC 2007 4 -NR- 36 -NR- 0 -NR- 04 DEC 2007 5 -NR- 56 -NR- 0 -5 03 DEC 2007 5 -NR- 0 -NR- 9 -18 *** 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 17DEC2007 @ 14:16 ** Preliminary Data - Subject to Revision **