U. S. Army Corps of Engineers, Jacksonville District Lake Okeechobee and Vicinity Report Data Ending 2400 hours 25 DEC 2007 _____________________________________________________________________________ Okeechobee Lake Regulation Elevation Last Year 2YRS Ago (ft-NGVD) (ft-NGVD) (ft-NGVD) *Okeechobee Lake Elevation 10.27 12.12 15.78 (Official Elv) Regulation Zone Elevations B= 18.50 C= 17.75 D= 17.00 E= 14.81 25DEC (1965-2006) Period of Record Average 14.78 Difference from POR Average -4.51 Simulated Average LORSS2007 TSP[1965-2000] 13.56 Difference from Average LORSS2007 TSP -3.28 Today Lake Okechobee elevation is determined from the 4 interior stations ++Navigation Depths (Based on 2001 Channel Condition Survey) Route 1 ÷ 4.21' Route 2 ÷ 1.61' Bridge Clearance = 52.63' ______________________________________________________________________________ 4 Interior and 4 Edge Okeechobee Lake Average (Avg-Daily values): (BAD) L001 L005 L006 LZ40 S4 S352 S308 S133 10.12 10.22 10.36 10.39 10.48 10.58 10.30 10.29 *Combination Okeechobee Avg-Daily Lake Average = 10.34 (*See Note) Interior Okeechobee Lake Average (Avg-Daily values): L001 L005 L006 LZ40 10.12 10.22 10.36 10.39 *Interior Okeechobee Avg-Daily Lake Average = 10.27 (*See Note) Okeechobee Lake Average (Avg-Daily values): (BAD) (BAD) (BAD) (BAD) (BAD) C5 S4 S3 S2 S352 S308 S135 S133 S127 S129 10.22 10.48 10.55 10.48 10.58 10.30 10.62 10.29 11.14 11.00 *Edge Okeechobee Avg-Daily Lake Average = 10.57 (*See Note) ______________________________________________________________________________ Okeechobee Inflows (cfs): S65E 223 S191 0 Fisheating Cr -NR- S154 0 S133 Pumps 0 S135 Pumps 0 S84 0 S127 Pumps -NR- S2 Pumps 0 S71 0 S129 Pumps 0 S3 Pumps 0 S72 0 S131 Pumps 0 S4 Pumps 0 Total Inflows: 223 Okeechobee Outflows (cfs): S135 Culverts 0 S354 0 S77 -25 S127 Culverts -NR- S351 0 S308 (BAD) -367 S129 Culverts 0 S352 0 S131 Culverts L8 Canal Pt -3 C5 -NR- Total Outflows: -396 (BAD VALUE) Okeechobee Pan Evaporation (inches): S77 0.06 S308 0.04 Average Pan Evap x 0.75 Pan Coefficient = 0.04" = 0.00' 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 0 cfs or 0 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: 12.87 10.36 0 0 0 0 0 0 (cfs) S193: ______ S191: 19.36 10.25 0 0.0 0.0 0.0 S135 Pumps: 12.45 10.62 0 0 0 0 0 (cfs) S135 Culverts: 0 0.0 0.0 North West Shore S65E: 21.04 9.94 223 0.2 0.2 0.1 0.1 0.0 0.0 S127 Pumps: 13.09 -NR- -NR- -NR- 0 0 0 0 (cfs) S127 Culvert: -NR- -NR- S129 Pumps: 10.40 11.00 0 0 0 0 (cfs) S129 Culvert: 0 0.0 S131 Pumps: 11.34 10.28 0 0 0 (cfs) S131 Culvert: Fisheating Creek nr Palmdale ______ -NR- nr Lakeport ______ C5: ______ 10.22 -NR- -NR- -NR- -NR- South Shore S4 Pumps: 9.77 10.35 0 0 0 0 (cfs) S169: 10.37 9.96 0 0.0 0.0 0.0 S310: ______ -NR- S3 Pumps: 9.94 10.47 0 0 0 0 (cfs) S354: 10.47 9.94 0 0.0 0.0 S2 Pumps: 10.23 10.41 0 0 0 0 0 (cfs) S351: 10.41 10.23 0 -NR- -NR- -NR- S352: 10.61 11.18 0 -NR- -NR- C10A: -NR- 10.33 -NR- -NR- 8.0 -NR- -NR- L8 Canal PT 10.39 -3 _________________________________________________________________________ Temporary Pumps S351: 10.23 10.41 0 -NR--NR--NR--NR--NR--NR- S352: 11.18 10.61 0 -NR--NR--NR--NR- S354: 9.94 10.47 0 -NR--NR--NR--NR- _________________________________________________________________________ Caloosahatchee River (S77, S78, S79) S47B: 10.07 10.24 5.7 5.8 S47D: 10.11 10.38 0 0.0 S77: Spillway and Sector Flow: 10.22 10.50 -25 0.0 0.0 0.0 0.0 Flow Due to Lockages+: -0 S78: Spillway and Sector Flow: 10.52 3.53 0 0.0 0.0 0.0 0.0 Flow Due to Lockages+: 3 S79: Spillway and Sector Flow: 3.62 1.11 64 0.0 0.0 0.0 0.5 0.5 0.0 0.0 0.0 Flow Due to Lockages+: 1 Percent of flow from S77 -39% Chloride (ppm) 163 St. Lucie Canal (S308, S80) S308: Spillway and Sector Flow: 10.37 10.87 -367 0.0 0.0 2.5 0.0 Flow Due to Lockages+: -0 S308 Below USGS Flow Gage -45 S153: 18.66 10.73 62 0.0 0.5 S80: Spillway and Sector Flow: 11.05 1.43 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) 28 Steele Point Bottom Salinity (mg/ml) 29 Speedy Point Top Salinity (mg/ml) 15 Speedy Point Bottom Salinity (mg/ml) 16 + 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 0.01 S193: -NR- 0.00 0.00 -NR- -NR- Okeechobee Field Station: -NR- 0.00 0.00 S135 Pump Station: -NR- 0.00 0.02 S127 Pump Station: -NR- 0.00 0.01 S129 Pump Station: -NR- 0.00 0.00 S131 Pump Station: -NR- 0.00 0.00 S77: 0.00 0.00 0.00 133 1 S78: 0.00 0.00 0.00 16 0 S79: 0.00 0.00 0.00 253 0 S4 Pump Station: -NR- 0.00 0.00 Clewiston Field Station: -NR- 0.00 0.18 S3 Pump Station: -NR- 0.00 0.00 S2 Pump Station: -NR- 0.00 0.00 S308: 0.01 0.01 0.01 32 5 S80: 0.38 0.45 0.57 62 2 Okeechobee Average 0.00 0.00 0.02 (Sites S78, S79 and S80 not included) ______________________________________________________________________________ Okeechobee Lake Elevations 25 DEC 2007 10.27 Difference from 25DEC07 25DEC07 -1 Day = 24 DEC 2007 10.27 0.00 25DEC07 -2 Days = 23 DEC 2007 10.27 0.00 25DEC07 -3 Days = 22 DEC 2007 10.25 -0.02 25DEC07 -4 Days = 21 DEC 2007 10.27 0.00 25DEC07 -5 Days = 20 DEC 2007 10.28 0.01 25DEC07 -6 Days = 19 DEC 2007 10.27 0.00 25DEC07 -7 Days = 18 DEC 2007 10.26 -0.01 25DEC07 -30 Days = 25 NOV 2007 10.30 0.03 25DEC07 -1 Year = 25 DEC 2006 12.12 1.85 25DEC07 -2 Year = 25 DEC 2005 15.78 5.51 ______________________________________________________________________________ Long Term Mean 30day Avearge ET for Lake Alfred = 1.99 ______________________________________________________________________________ Lake Okeechobee Net Inflow (LONIN) Average Flow over the previous 14 days | Avg-Daily Flow 25DEC07 Today = 25 DEC 2007 -825 WED | -392 25DEC07 -1 Day = 24 DEC 2007 -761 TUE | -529 25DEC07 -2 Days = 23 DEC 2007 -843 MON | 1521 25DEC07 -3 Days = 22 DEC 2007 -820 SUN | -4288 25DEC07 -4 Days = 21 DEC 2007 -504 SAT | -2621 25DEC07 -5 Days = 20 DEC 2007 -293 FRI | -NR- 25DEC07 -6 Days = 19 DEC 2007 -293 THU | -267 25DEC07 -7 Days = 18 DEC 2007 -296 WED | -NR- 25DEC07 -8 Days = 17 DEC 2007 -296 TUE | -12743 25DEC07 -9 Days = 16 DEC 2007 1260 MON | -10533 25DEC07 -10 Days = 15 DEC 2007 2945 SUN | 17734 25DEC07 -11 Days = 14 DEC 2007 480 SAT | 6818 25DEC07 -12 Days = 13 DEC 2007 -788 FRI | -1516 25DEC07 -13 Days = 12 DEC 2007 -606 THU | -3085 ______________________________________________________________________________ ______________________________________________________________________________ S65-E Average Flow over previous 14 days | Avg-Daily Flow 25DEC07 Today= 25 DEC 2007 385 WED | 223 25DEC07 -1 Day = 24 DEC 2007 424 TUE | 38 25DEC07 -2 Days = 23 DEC 2007 441 MON | 344 25DEC07 -3 Days = 22 DEC 2007 441 SUN | 618 25DEC07 -4 Days = 21 DEC 2007 413 SAT | 507 25DEC07 -5 Days = 20 DEC 2007 377 FRI | 468 25DEC07 -6 Days = 19 DEC 2007 360 THU | 434 25DEC07 -7 Days = 18 DEC 2007 377 WED | 340 25DEC07 -8 Days = 17 DEC 2007 370 TUE | 443 25DEC07 -9 Days = 16 DEC 2007 347 MON | 233 25DEC07 -10 Days = 15 DEC 2007 365 SUN | 550 25DEC07 -11 Days = 14 DEC 2007 362 SAT | 233 25DEC07 -12 Days = 13 DEC 2007 354 FRI | 213 25DEC07 -13 Days = 12 DEC 2007 339 THU | 741 ______________________________________________________________________________ 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) 25 DEC 2007 -18 -50 0 6 -88 -729 24 DEC 2007 -72 -151 0 6 -166 -898 23 DEC 2007 -144 -246 0 4 -410 -3138 22 DEC 2007 -134 -215 0 10 -281 -1890 21 DEC 2007 -170 -286 0 12 -260 -1731 20 DEC 2007 -158 -286 0 6 -331 -3293 19 DEC 2007 -199 -341 0 13 -410 -3387 18 DEC 2007 -201 -334 0 2 -545 -NR- 17 DEC 2007 -190 -333 0 7 -977 -8939 16 DEC 2007 -188 -238 0 9 -871 -7552 15 DEC 2007 0 -36 0 12 -1584 -6689 14 DEC 2007 138 214 0 12 -444 -3192 13 DEC 2007 150 294 0 8 6 -0 12 DEC 2007 166 310 0 10 -13 -0 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) 25 DEC 2007 130 -NR- 0 0 0 -6 24 DEC 2007 1 -NR- 0 0 0 -56 23 DEC 2007 263 -NR- 0 0 0 -9 22 DEC 2007 250 -NR- 0 0 0 -19 21 DEC 2007 384 -NR- 0 18 0 -42 20 DEC 2007 306 -NR- 0 0 0 -NR- 19 DEC 2007 491 -NR- 0 0 0 -113 18 DEC 2007 406 -NR- 0 0 0 -268 17 DEC 2007 2 -NR- 0 0 0 -355 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 *** 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 26DEC2007 @ 08:47 ** Preliminary Data - Subject to Revision **