U. S. Army Corps of Engineers, Jacksonville District Lake Okeechobee and Vicinity Report Data Ending 2400 hours 07 OCT 2007 _____________________________________________________________________________ Okeechobee Lake Regulation Elevation Last Year 2YRS Ago (ft-NGVD) (ft-NGVD) (ft-NGVD) *Okeechobee Lake Elevation 10.10 13.25 15.55 (Official Elv) Regulation Zone Elevations B= -NR- C= 17.75 D= 17.00 E= 15.45 07OCT (1965-2006) Period of Record Average 15.10 Difference from POR Average -5.00 Simulated Average LORSS2007 TSP[1965-2000] 13.87 Difference from Average LORSS2007 TSP -3.77 Today Lake Okechobee elevation is determined from the 4 interior stations ++Navigation Depths (Based on 2001 Channel Condition Survey) Route 1 ÷ 4.04' Route 2 ÷ 1.44' Bridge Clearance = 53.20' ______________________________________________________________________________ 4 Interior and 4 Edge Okeechobee Lake Average (Avg-Daily values): (BAD) L001 L005 L006 LZ40 S4 S352 S308 S133 9.89 10.23 10.09 10.18 10.45 10.21 9.95 10.08 *Combination Okeechobee Avg-Daily Lake Average = 10.14 (*See Note) Interior Okeechobee Lake Average (Avg-Daily values): L001 L005 L006 LZ40 9.89 10.23 10.09 10.18 *Interior Okeechobee Avg-Daily Lake Average = 10.10 (*See Note) Okeechobee Lake Average (Avg-Daily values): (BAD) (BAD) (BAD) (BAD) (BAD) C5 S4 S3 S2 S352 S308 S135 S133 S127 S129 10.53 10.45 10.31 10.17 10.21 9.95 10.60 10.08 11.22 10.64 *Edge Okeechobee Avg-Daily Lake Average = 10.42 (*See Note) ______________________________________________________________________________ Okeechobee Inflows (cfs): S65E 1121 S191 287 Fisheating Cr -NR- S154 0 S133 Pumps 0 S135 Pumps 0 S84 26 S127 Pumps 0 S2 Pumps 0 S71 371 S129 Pumps 0 S3 Pumps 0 S72 -NR- S131 Pumps 0 S4 Pumps 0 Total Inflows: 1805 Okeechobee Outflows (cfs): S135 Culverts 0 S354 0 S77 -145 S127 Culverts -NR- S351 0 S308 (BAD) -3143 S129 Culverts 0 S352 0 S131 Culverts L8 Canal Pt -NR- C5 -NR- Total Outflows: -3288 (BAD VALUE) Okeechobee Pan Evaporation (inches): S77 0.22 S308 0.21 Average Pan Evap x 0.75 Pan Coefficient = 0.16" = 0.01' Lake Average Precipitation using NEXRAD: = 0.02" = 0.00' Evaporation - Precipitation: = 0.14" = 0.01' Evaporation - Precipitation using Lake Area of 730 square miles is equal to 2773 cfs out of the lake. Lake Okeechobee (Change in Storage) Flow is 1765 cfs or 3500 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: 10.97 10.11 0 0 0 0 0 0 (cfs) S193: ______ S191: 19.52 10.06 287 0.0 0.0 0.0 S135 Pumps: 13.33 10.60 0 0 0 0 0 (cfs) S135 Culverts: 0 0.0 0.0 North West Shore S65E: 21.08 9.88 1121 0.5 0.5 0.4 0.4 0.4 0.4 S127 Pumps: 13.06 -NR- 0 0 0 0 0 0 (cfs) S127 Culvert: -NR- -NR- S129 Pumps: 10.46 10.60 0 0 0 0 (cfs) S129 Culvert: 0 0.0 S131 Pumps: 12.52 11.80 0 0 0 (cfs) S131 Culvert: Fisheating Creek nr Palmdale ______ -NR- nr Lakeport ______ C5: ______ 10.53 -NR- -NR- -NR- -NR- South Shore S4 Pumps: 10.48 10.36 0 0 0 0 (cfs) S169: 10.36 10.65 0 0.0 0.0 0.0 S310: ______ -NR- S3 Pumps: 9.82 10.28 0 0 0 0 (cfs) S354: 10.28 9.82 0 0.0 0.0 S2 Pumps: 10.48 10.22 0 0 0 0 0 (cfs) S351: 10.22 10.48 0 0.0 0.0 0.0 S352: ______ -NR- 0 -NR- -NR- C10A: -NR- 11.77 -NR- -NR- 8.0 -NR- -NR- L8 Canal PT ______ -NR- _________________________________________________________________________ Temporary Pumps S351: 10.48 10.22 0 -NR--NR--NR--NR--NR--NR- S352: -NR- ______ 0 -NR--NR--NR--NR- S354: 9.82 10.28 0 -NR--NR--NR--NR- _________________________________________________________________________ Caloosahatchee River (S77, S78, S79) S47B: 10.52 10.62 5.8 5.8 S47D: 10.61 11.12 0 0.0 S77: Spillway and Sector Flow: 10.41 11.20 -144 0.0 0.5 0.5 0.5 Flow Due to Lockages+: -1 S78: Spillway and Sector Flow: 11.39 2.95 0 0.0 0.0 0.0 0.0 Flow Due to Lockages+: 9 S79: Spillway and Sector Flow: 2.91 1.35 240 0.0 0.0 0.5 0.5 0.0 0.0 0.0 0.0 Flow Due to Lockages+: 1 Percent of flow from S77 -60% Chloride (ppm) 74 St. Lucie Canal (S308, S80) S308: Spillway and Sector Flow: 10.05 10.30 -3143 2.5 2.5 2.5 2.5 Flow Due to Lockages+: 0 S308 Below USGS Flow Gage -932 S153: 18.78 10.21 469 0.4 1.0 S80: Spillway and Sector Flow: 11.45 1.28 -5586 0.0 0.0 0.0 0.0 0.0 0.0 0.0 Flow Due to Lockages+: -NR- Percent of flow from S308 56% Steele Point Top Salinity (mg/ml) 22 Steele Point Bottom Salinity (mg/ml) 20 Speedy Point Top Salinity (mg/ml) 10 Speedy Point Bottom Salinity (mg/ml) 7 + 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 2.13 S193: -NR- 0.00 0.00 -NR- -NR- Okeechobee Field Station: -NR- 0.00 2.90 S135 Pump Station: -NR- 0.00 0.03 S127 Pump Station: -NR- 0.00 1.89 S129 Pump Station: -NR- 0.00 0.50 S131 Pump Station: -NR- 0.00 0.51 S77: 0.00 0.38 1.12 341 0 S78: 0.03 6.58 6.95 297 3 S79: 0.11 0.38 0.42 46 5 S4 Pump Station: -NR- 0.00 0.00 Clewiston Field Station: -NR- 0.00 0.03 S3 Pump Station: -NR- 0.00 1.43 S2 Pump Station: -NR- 0.00 1.43 S308: 0.01 0.08 0.11 162 5 S80: 0.00 0.07 2.42 131 3 Okeechobee Average 0.00 0.04 0.93 (Sites S78, S79 and S80 not included) ______________________________________________________________________________ Okeechobee Lake Elevations 07 OCT 2007 10.10 Difference from 07OCT07 07OCT07 -1 Day = 06 OCT 2007 10.09 -0.01 07OCT07 -2 Days = 05 OCT 2007 10.05 -0.05 07OCT07 -3 Days = 04 OCT 2007 10.02 -0.08 07OCT07 -4 Days = 03 OCT 2007 10.00 -0.10 07OCT07 -5 Days = 02 OCT 2007 9.96 -0.14 07OCT07 -6 Days = 01 OCT 2007 9.85 -0.25 07OCT07 -7 Days = 30 SEP 2007 9.85 -0.25 07OCT07 -30 Days = 07 SEP 2007 9.61 -0.49 07OCT07 -1 Year = 07 OCT 2006 13.25 3.15 07OCT07 -2 Year = 07 OCT 2005 15.55 5.45 ______________________________________________________________________________ Long Term Mean 30day Avearge ET for Lake Alfred = 3.77 ______________________________________________________________________________ Lake Okeechobee Net Inflow (LONIN) Average Flow over the previous 14 days | Avg-Daily Flow 07OCT07 Today = 07 OCT 2007 -NR- MON | -NR- 07OCT07 -1 Day = 06 OCT 2007 -NR- SUN | -NR- 07OCT07 -2 Days = 05 OCT 2007 -NR- SAT | -NR- 07OCT07 -3 Days = 04 OCT 2007 -NR- FRI | -NR- 07OCT07 -4 Days = 03 OCT 2007 -NR- THU | -NR- 07OCT07 -5 Days = 02 OCT 2007 -NR- WED | -NR- 07OCT07 -6 Days = 01 OCT 2007 -NR- TUE | -NR- 07OCT07 -7 Days = 30 SEP 2007 -NR- MON | -NR- 07OCT07 -8 Days = 29 SEP 2007 -NR- SUN | -NR- 07OCT07 -9 Days = 28 SEP 2007 -NR- SAT | -NR- 07OCT07 -10 Days = 27 SEP 2007 -NR- FRI | -NR- 07OCT07 -11 Days = 26 SEP 2007 -NR- THU | -NR- 07OCT07 -12 Days = 25 SEP 2007 -NR- WED | -NR- 07OCT07 -13 Days = 24 SEP 2007 -NR- TUE | -NR- ______________________________________________________________________________ ______________________________________________________________________________ S65-E Average Flow over previous 14 days | Avg-Daily Flow 07OCT07 Today= 07 OCT 2007 762 MON | 1121 07OCT07 -1 Day = 06 OCT 2007 702 SUN | 444 07OCT07 -2 Days = 05 OCT 2007 753 SAT | 778 07OCT07 -3 Days = 04 OCT 2007 637 FRI | 949 07OCT07 -4 Days = 03 OCT 2007 561 THU | 1160 07OCT07 -5 Days = 02 OCT 2007 361 WED | 629 07OCT07 -6 Days = 01 OCT 2007 363 TUE | 251 07OCT07 -7 Days = 30 SEP 2007 455 MON | -NR- 07OCT07 -8 Days = 29 SEP 2007 508 SUN | -NR- 07OCT07 -9 Days = 28 SEP 2007 506 SAT | -NR- 07OCT07 -10 Days = 27 SEP 2007 500 FRI | -NR- 07OCT07 -11 Days = 26 SEP 2007 496 THU | -NR- 07OCT07 -12 Days = 25 SEP 2007 525 WED | -NR- 07OCT07 -13 Days = 24 SEP 2007 522 TUE | -NR- ______________________________________________________________________________ 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) 07 OCT 2007 -166 -287 0 17 -1848 -6233 06 OCT 2007 -147 -257 0 -NR- -2338 -8350 05 OCT 2007 -166 -286 0 39 -2877 -9865 04 OCT 2007 -187 -321 0 24 -4059 -12876 03 OCT 2007 -196 -340 0 5 -3052 -11583 02 OCT 2007 -154 -NR- 0 7 -3304 -9737 01 OCT 2007 0 -0 0 10 -1603 -5511 30 SEP 2007 0 -0 0 19 -NR- -7057 29 SEP 2007 -329 -564 0 35 -1322 -6885 28 SEP 2007 -392 -NR- 0 2 -1564 -6480 27 SEP 2007 -514 -1001 0 14 -1964 -7157 26 SEP 2007 -521 -1040 0 5 -2493 -8844 25 SEP 2007 -552 -747 0 10 -2708 -8210 24 SEP 2007 0 -1 0 5 -2659 -6486 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) 07 OCT 2007 478 -NR- 0 0 0 -NR- 06 OCT 2007 516 -NR- 0 0 0 -NR- 05 OCT 2007 433 -NR- 0 0 0 -NR- 04 OCT 2007 415 -NR- 0 0 0 -NR- 03 OCT 2007 369 -NR- 0 0 0 -NR- 02 OCT 2007 87 -NR- 0 0 0 -NR- 01 OCT 2007 -NR- -NR- 0 0 0 -NR- 30 SEP 2007 425 -NR- 0 0 0 -NR- 29 SEP 2007 1072 -NR- 0 0 0 -NR- 28 SEP 2007 996 -NR- 0 0 0 -NR- 27 SEP 2007 980 -NR- 0 0 0 -NR- 26 SEP 2007 1004 -NR- 0 0 0 -NR- 25 SEP 2007 2505 -NR- 0 0 0 -NR- 24 SEP 2007 1098 -NR- 0 0 0 -NR- *** 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 08OCT2007 @ 13:16 ** Preliminary Data - Subject to Revision **