U. S. Army Corps of Engineers, Jacksonville District Lake Okeechobee and Vicinity Report Data Ending 2400 hours 03 SEP 2007 _____________________________________________________________________________ Okeechobee Lake Regulation Elevation Last Year 2YRS Ago (ft-NGVD) (ft-NGVD) (ft-NGVD) *Okeechobee Lake Elevation 9.55 12.69 15.79 (Official Elv) Regulation Zone Elevations B= 17.44 C= 16.94 D= 16.16 E= 14.83 03SEP (1965-2006) Period of Record Average 14.39 Difference from POR Average -4.84 Simulated Average LORSS2007 TSP[1965-2000] 13.26 Difference from Average LORSS2007 TSP -3.71 Today Lake Okechobee elevation is determined from the 4 interior stations ++Navigation Depths (Based on 2001 Channel Condition Survey) Route 1 ÷ 3.49' Route 2 ÷ 0.89' Bridge Clearance = 53.58' ______________________________________________________________________________ 4 Interior and 4 Edge Okeechobee Lake Average (Avg-Daily values): (BAD) L001 L005 L006 LZ40 S4 S352 S308 S133 9.40 9.51 9.60 9.67 9.70 9.83 9.57 9.59 *Combination Okeechobee Avg-Daily Lake Average = 9.61 (*See Note) Interior Okeechobee Lake Average (Avg-Daily values): L001 L005 L006 LZ40 9.40 9.51 9.60 9.67 *Interior Okeechobee Avg-Daily Lake Average = 9.55 (*See Note) Okeechobee Lake Average (Avg-Daily values): (BAD) (BAD) (BAD) (BAD) (BAD) C5 S4 S3 S2 S352 S308 S135 S133 S127 S129 9.66 9.70 10.15 10.01 9.83 9.57 8.86 9.59 10.97 11.44 *Edge Okeechobee Avg-Daily Lake Average = 9.98 (*See Note) ______________________________________________________________________________ Okeechobee Inflows (cfs): S65E 782 S191 0 Fisheating Cr 7 S154 0 S133 Pumps 0 S135 Pumps 0 S84 44 S127 Pumps 0 S2 Pumps 0 S71 559 S129 Pumps 0 S3 Pumps 0 S72 0 S131 Pumps 0 S4 Pumps 0 Total Inflows: 1392 Okeechobee Outflows (cfs): S135 Culverts 0 S354 0 S77 -164 S127 Culverts -NR- S351 0 S308 (BAD) -NR- S129 Culverts 0 S352 0 S131 Culverts L8 Canal Pt -NR- C5 -NR- Total Outflows: No Report Due To Missing S77 or S308 Discharge Data Okeechobee Pan Evaporation (inches): S77 0.27 S308 0.24 Average Pan Evap x 0.75 Pan Coefficient = 0.19" = 0.02' 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 3126 cfs or 6200 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: 9.54 9.56 0 0 0 0 0 0 (cfs) S193: 47.00 S191: 17.91 10.06 0 0.0 0.0 0.0 S135 Pumps: 9.10 8.94 0 0 0 0 0 (cfs) S135 Culverts: 0 0.0 0.0 North West Shore S65E: 20.95 9.15 782 0.3 0.3 0.3 0.3 0.0 0.0 S127 Pumps: 12.15 10.96 0 0 0 0 0 0 (cfs) S127 Culvert: -NR- -NR- S129 Pumps: 10.76 11.53 0 0 0 0 (cfs) S129 Culvert: 0 0.0 S131 Pumps: 13.00 11.73 0 0 0 (cfs) S131 Culvert: Fisheating Creek nr Palmdale 28.21 7 nr Lakeport ______ C5: ______ 9.66 -NR- -NR- -NR- -NR- South Shore S4 Pumps: 9.75 9.58 0 0 0 0 (cfs) S169: 9.62 9.92 0 0.0 0.0 0.0 S310: ______ -NR- S3 Pumps: 9.91 10.15 0 0 0 0 (cfs) S354: 10.15 9.91 0 -NR- 0.0 S2 Pumps: 10.36 10.01 0 0 0 0 0 (cfs) S351: 10.01 10.36 0 -NR- 0.0 -NR- S352: 9.90 10.64 0 0.0 -NR- C10A: -NR- 10.01 -NR- -NR- 8.0 -NR- -NR- L8 Canal PT ______ -NR- _________________________________________________________________________ Temporary Pumps S351: 10.36 10.01 0 -NR--NR--NR--NR--NR--NR- S352: 10.64 9.90 0 -NR--NR--NR--NR- S354: 9.91 10.15 0 -NR--NR--NR--NR- _________________________________________________________________________ Caloosahatchee River (S77, S78, S79) S47B: 9.58 9.68 6.0 5.9 S47D: 9.69 9.62 0 0.0 S77: Spillway and Sector Flow: 9.76 9.76 -164 1.5 2.0 2.0 1.5 Flow Due to Lockages+: -0 S78: Spillway and Sector Flow: 9.81 2.92 0 0.0 0.0 0.0 0.0 Flow Due to Lockages+: 7 S79: Spillway and Sector Flow: 2.99 0.87 676 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 -24% Chloride (ppm) 73 St. Lucie Canal (S308, S80) S308: Spillway and Sector Flow: 9.58 9.92 -NR- 0.0 2.5 2.5 0.0 Flow Due to Lockages+: -0 S308 Below USGS Flow Gage -141 S153: 18.80 9.80 136 0.0 0.0 S80: Spillway and Sector Flow: 9.95 0.18 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) 27 Steele Point Bottom Salinity (mg/ml) 29 Speedy Point Top Salinity (mg/ml) 18 Speedy Point Bottom Salinity (mg/ml) 18 + 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 0.00 S193: -NR- 0.00 0.00 -NR- -NR- Okeechobee Field Station: -NR- 0.00 0.03 S135 Pump Station: -NR- 0.00 0.02 S127 Pump Station: -NR- 0.00 0.00 S129 Pump Station: -NR- 0.00 1.05 S131 Pump Station: -NR- 0.00 0.59 S77: 2.01 2.10 3.28 321 1 S78: 2.02 3.59 4.81 19 0 S79: 0.00 0.04 0.65 144 2 S4 Pump Station: -NR- 0.00 0.00 Clewiston Field Station: -NR- 0.00 0.09 S3 Pump Station: -NR- 0.00 0.16 S2 Pump Station: -NR- 0.00 0.04 S308: 0.06 0.14 0.17 175 2 S80: 1.09 1.09 1.74 342 3 Okeechobee Average 1.03 0.17 0.42 (Sites S78, S79 and S80 not included) ______________________________________________________________________________ Okeechobee Lake Elevations 03 SEP 2007 9.55 Difference from 03SEP07 03SEP07 -1 Day = 02 SEP 2007 9.53 -0.02 03SEP07 -2 Days = 01 SEP 2007 9.52 -0.03 03SEP07 -3 Days = 31 AUG 2007 9.51 -0.04 03SEP07 -4 Days = 30 AUG 2007 9.53 -0.02 03SEP07 -5 Days = 29 AUG 2007 9.55 0.00 03SEP07 -6 Days = 28 AUG 2007 9.57 0.02 03SEP07 -7 Days = 27 AUG 2007 9.57 0.02 03SEP07 -30 Days = 04 AUG 2007 9.45 -0.10 03SEP07 -1 Year = 03 SEP 2006 12.69 3.14 03SEP07 -2 Year = 03 SEP 2005 15.79 6.24 ______________________________________________________________________________ Long Term Mean 30day Avearge ET for Lake Alfred = 4.29 ______________________________________________________________________________ Lake Okeechobee Net Inflow (LONIN) Average Flow over the previous 14 days | Avg-Daily Flow 03SEP07 Today = 03 SEP 2007 -NR- TUE | -NR- 03SEP07 -1 Day = 02 SEP 2007 -NR- MON | -NR- 03SEP07 -2 Days = 01 SEP 2007 -NR- SUN | -NR- 03SEP07 -3 Days = 31 AUG 2007 -NR- SAT | -NR- 03SEP07 -4 Days = 30 AUG 2007 -NR- FRI | -NR- 03SEP07 -5 Days = 29 AUG 2007 -NR- THU | -NR- 03SEP07 -6 Days = 28 AUG 2007 -NR- WED | -NR- 03SEP07 -7 Days = 27 AUG 2007 -NR- TUE | -NR- 03SEP07 -8 Days = 26 AUG 2007 -NR- MON | -NR- 03SEP07 -9 Days = 25 AUG 2007 -NR- SUN | -NR- 03SEP07 -10 Days = 24 AUG 2007 -NR- SAT | -NR- 03SEP07 -11 Days = 23 AUG 2007 -NR- FRI | -NR- 03SEP07 -12 Days = 22 AUG 2007 -NR- THU | -NR- 03SEP07 -13 Days = 21 AUG 2007 -NR- WED | -NR- ______________________________________________________________________________ ______________________________________________________________________________ S65-E Average Flow over previous 14 days | Avg-Daily Flow 03SEP07 Today= 03 SEP 2007 524 TUE | 782 03SEP07 -1 Day = 02 SEP 2007 519 MON | 941 03SEP07 -2 Days = 01 SEP 2007 502 SUN | 542 03SEP07 -3 Days = 31 AUG 2007 512 SAT | 544 03SEP07 -4 Days = 30 AUG 2007 532 FRI | 223 03SEP07 -5 Days = 29 AUG 2007 608 THU | 326 03SEP07 -6 Days = 28 AUG 2007 657 WED | 618 03SEP07 -7 Days = 27 AUG 2007 660 TUE | 532 03SEP07 -8 Days = 26 AUG 2007 669 MON | 344 03SEP07 -9 Days = 25 AUG 2007 691 SUN | 823 03SEP07 -10 Days = 24 AUG 2007 677 SAT | 0 03SEP07 -11 Days = 23 AUG 2007 728 FRI | 184 03SEP07 -12 Days = 22 AUG 2007 784 THU | 756 03SEP07 -13 Days = 21 AUG 2007 814 WED | 717 ______________________________________________________________________________ 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) 03 SEP 2007 -233 -325 0 13 -280 -NR- 02 SEP 2007 -204 -329 0 26 -527 -NR- 01 SEP 2007 -194 -337 0 7 -576 -NR- 31 AUG 2007 -179 -329 0 15 -296 -2309 30 AUG 2007 -498 -964 0 2 -516 -2275 29 AUG 2007 -930 -NR- 0 2 -764 -4160 28 AUG 2007 -938 -1602 0 4 -1038 -5876 27 AUG 2007 -483 -NR- 0 8 -1027 -8981 26 AUG 2007 -NR- -NR- 0 6 -955 -NR- 25 AUG 2007 -220 -NR- 0 2 -424 -NR- 24 AUG 2007 -264 -579 0 4 -330 -NR- 23 AUG 2007 -246 -619 0 10 -298 -NR- 22 AUG 2007 -306 -627 0 0 -469 -7363 21 AUG 2007 -332 -627 0 4 -436 -NR- 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) 03 SEP 2007 1344 -NR- 0 0 0 -NR- 02 SEP 2007 558 -NR- 0 0 0 -NR- 01 SEP 2007 547 -NR- 0 0 0 -NR- 31 AUG 2007 122 -NR- 0 0 0 -NR- 30 AUG 2007 463 -NR- 0 0 0 -NR- 29 AUG 2007 556 -NR- 0 0 0 -NR- 28 AUG 2007 116 -NR- 0 0 0 -NR- 27 AUG 2007 2 -NR- 0 0 0 -NR- 26 AUG 2007 580 -NR- 0 0 0 -NR- 25 AUG 2007 127 -NR- 0 0 0 -NR- 24 AUG 2007 2 -NR- 0 0 0 -NR- 23 AUG 2007 2 -NR- 0 0 0 -NR- 22 AUG 2007 0 -NR- 0 0 0 -NR- 21 AUG 2007 1 -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 04SEP2007 @ 07:15 ** Preliminary Data - Subject to Revision **