U. S. Army Corps of Engineers, Jacksonville District Lake Okeechobee and Vicinity Report Data Ending 2400 hours 16 SEP 2007 _____________________________________________________________________________ Okeechobee Lake Regulation Elevation Last Year 2YRS Ago (ft-NGVD) (ft-NGVD) (ft-NGVD) *Okeechobee Lake Elevation 9.64 13.42 15.74 (Official Elv) Regulation Zone Elevations B= 17.56 C= 17.05 D= 16.30 E= 15.03 16SEP (1965-2006) Period of Record Average 14.68 Difference from POR Average -5.04 Simulated Average LORSS2007 TSP[1965-2000] 13.51 Difference from Average LORSS2007 TSP -3.87 Today Lake Okechobee elevation is determined from the 4 interior stations ++Navigation Depths (Based on 2001 Channel Condition Survey) Route 1 ÷ 3.58' Route 2 ÷ 0.98' Bridge Clearance = 53.71' ______________________________________________________________________________ 4 Interior and 4 Edge Okeechobee Lake Average (Avg-Daily values): (BAD) L001 L005 L006 LZ40 S4 S352 S308 S133 9.52 9.67 9.65 9.74 9.79 9.85 9.64 9.72 *Combination Okeechobee Avg-Daily Lake Average = 9.70 (*See Note) Interior Okeechobee Lake Average (Avg-Daily values): L001 L005 L006 LZ40 9.52 9.67 9.65 9.74 *Interior Okeechobee Avg-Daily Lake Average = 9.64 (*See Note) Okeechobee Lake Average (Avg-Daily values): (BAD) (BAD) (BAD) (BAD) (BAD) C5 S4 S3 S2 S352 S308 S135 S133 S127 S129 9.78 9.79 10.12 9.95 9.85 9.64 9.30 9.72 11.10 11.09 *Edge Okeechobee Avg-Daily Lake Average = 10.03 (*See Note) ______________________________________________________________________________ Okeechobee Inflows (cfs): S65E 760 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 173 S131 Pumps 0 S4 Pumps 0 Total Inflows: 933 Okeechobee Outflows (cfs): S135 Culverts 0 S354 0 S77 -92 S127 Culverts -NR- S351 0 S308 (BAD) -3424 S129 Culverts 0 S352 0 S131 Culverts L8 Canal Pt -NR- C5 -NR- Total Outflows: -3516 (BAD VALUE) Okeechobee Pan Evaporation (inches): S77 0.15 S308 0.19 Average Pan Evap x 0.75 Pan Coefficient = 0.13" = 0.01' Lake Average Precipitation using NEXRAD: = 0.10" = 0.01' Evaporation - Precipitation: = 0.03" = 0.00' Evaporation - Precipitation using Lake Area of 730 square miles is equal to 540 cfs out of the lake. Lake Okeechobee (Change in Storage) Flow is 4689 cfs or 9300 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: 9.62 9.74 0 0 0 0 0 0 (cfs) S193: 63.00 S191: 19.15 10.05 0 0.0 0.0 0.0 S135 Pumps: 9.89 9.37 0 0 0 0 0 (cfs) S135 Culverts: 0 0.0 0.0 North West Shore S65E: 20.71 9.39 760 0.4 0.4 0.4 0.4 0.0 0.0 S127 Pumps: 12.75 11.09 0 0 0 0 0 0 (cfs) S127 Culvert: -NR- -NR- S129 Pumps: 10.56 11.03 0 0 0 0 (cfs) S129 Culvert: 0 0.0 S131 Pumps: 12.80 11.75 0 0 0 (cfs) S131 Culvert: Fisheating Creek nr Palmdale ______ -NR- nr Lakeport ______ C5: ______ 9.78 -NR- -NR- -NR- -NR- South Shore S4 Pumps: 9.91 9.81 0 0 0 0 (cfs) S169: 9.82 10.05 0 0.0 0.0 0.0 S310: ______ -NR- S3 Pumps: 10.12 10.11 0 0 0 0 (cfs) S354: 10.11 10.12 0 -NR- 0.0 S2 Pumps: 10.52 9.95 0 0 0 0 0 (cfs) S351: 9.95 10.52 0 -NR- 0.0 -NR- S352: 9.84 10.68 0 0.0 -NR- C10A: -NR- 10.27 -NR- -NR- 8.0 -NR- -NR- L8 Canal PT ______ -NR- _________________________________________________________________________ Temporary Pumps S351: 10.52 9.95 0 -NR--NR--NR--NR--NR--NR- S352: 10.68 9.84 0 -NR--NR--NR--NR- S354: 10.12 10.11 0 -NR--NR--NR--NR- _________________________________________________________________________ Caloosahatchee River (S77, S78, S79) S47B: 9.80 9.87 6.0 5.9 S47D: 9.89 9.85 0 0.0 S77: Spillway and Sector Flow: 9.81 9.94 -92 0.5 0.5 0.5 0.5 Flow Due to Lockages+: -0 S78: Spillway and Sector Flow: -NR- -NR- -NR- 0.0 -NR- -NR- -NR- Flow Due to Lockages+: -NR- S79: Spillway and Sector Flow: 2.79 0.96 115 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 Flow Due to Lockages+: 1 Percent of flow from S77 -80% Chloride (ppm) 78 St. Lucie Canal (S308, S80) S308: Spillway and Sector Flow: 9.61 9.79 -3424 2.5 2.5 2.5 2.5 Flow Due to Lockages+: 0 S308 Below USGS Flow Gage -470 S153: 18.61 9.74 250 0.0 0.5 S80: Spillway and Sector Flow: 9.98 0.52 0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 Flow Due to Lockages+: 0 Percent of flow from S308 -NR-% Steele Point Top Salinity (mg/ml) 33 Steele Point Bottom Salinity (mg/ml) 30 Speedy Point Top Salinity (mg/ml) -N 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- 0.00 0.71 S193: -NR- 0.00 0.00 -NR- -NR- Okeechobee Field Station: -NR- 0.00 0.64 S135 Pump Station: -NR- 0.00 0.76 S127 Pump Station: -NR- 0.00 0.60 S129 Pump Station: -NR- 0.00 0.35 S131 Pump Station: -NR- 0.00 0.52 S77: 0.00 0.42 5.10 68 2 S78: -NR- 0.00 0.00 -NR- -NR- S79: 0.00 0.15 1.88 51 2 S4 Pump Station: -NR- 0.00 0.00 Clewiston Field Station: -NR- 0.00 1.49 S3 Pump Station: -NR- 0.00 0.89 S2 Pump Station: -NR- 0.00 0.07 S308: 0.00 0.06 1.32 187 3 S80: 0.04 0.04 0.83 171 0 Okeechobee Average 0.00 0.04 0.96 (Sites S78, S79 and S80 not included) ______________________________________________________________________________ Okeechobee Lake Elevations 16 SEP 2007 9.64 Difference from 16SEP07 16SEP07 -1 Day = 15 SEP 2007 9.61 -0.03 16SEP07 -2 Days = 14 SEP 2007 9.61 -0.03 16SEP07 -3 Days = 13 SEP 2007 9.60 -0.04 16SEP07 -4 Days = 12 SEP 2007 9.59 -0.05 16SEP07 -5 Days = 11 SEP 2007 9.61 -0.03 16SEP07 -6 Days = 10 SEP 2007 9.57 -0.07 16SEP07 -7 Days = 09 SEP 2007 9.58 -0.06 16SEP07 -30 Days = 17 AUG 2007 9.51 -0.13 16SEP07 -1 Year = 16 SEP 2006 13.42 3.78 16SEP07 -2 Year = 16 SEP 2005 15.74 6.10 ______________________________________________________________________________ Long Term Mean 30day Avearge ET for Lake Alfred = 4.12 ______________________________________________________________________________ Lake Okeechobee Net Inflow (LONIN) Average Flow over the previous 14 days | Avg-Daily Flow 16SEP07 Today = 16 SEP 2007 -NR- MON | -NR- 16SEP07 -1 Day = 15 SEP 2007 -NR- SUN | -NR- 16SEP07 -2 Days = 14 SEP 2007 -NR- SAT | -NR- 16SEP07 -3 Days = 13 SEP 2007 -NR- FRI | -NR- 16SEP07 -4 Days = 12 SEP 2007 -NR- THU | -NR- 16SEP07 -5 Days = 11 SEP 2007 -NR- WED | -NR- 16SEP07 -6 Days = 10 SEP 2007 -NR- TUE | -NR- 16SEP07 -7 Days = 09 SEP 2007 -NR- MON | -NR- 16SEP07 -8 Days = 08 SEP 2007 -NR- SUN | -NR- 16SEP07 -9 Days = 07 SEP 2007 -NR- SAT | -NR- 16SEP07 -10 Days = 06 SEP 2007 -NR- FRI | -NR- 16SEP07 -11 Days = 05 SEP 2007 -NR- THU | -NR- 16SEP07 -12 Days = 04 SEP 2007 -NR- WED | -NR- 16SEP07 -13 Days = 03 SEP 2007 -NR- TUE | -NR- ______________________________________________________________________________ ______________________________________________________________________________ S65-E Average Flow over previous 14 days | Avg-Daily Flow 16SEP07 Today= 16 SEP 2007 624 MON | 760 16SEP07 -1 Day = 15 SEP 2007 639 SUN | 496 16SEP07 -2 Days = 14 SEP 2007 642 SAT | 452 16SEP07 -3 Days = 13 SEP 2007 649 FRI | 479 16SEP07 -4 Days = 12 SEP 2007 631 THU | 777 16SEP07 -5 Days = 11 SEP 2007 598 WED | 496 16SEP07 -6 Days = 10 SEP 2007 606 TUE | 538 16SEP07 -7 Days = 09 SEP 2007 606 MON | 656 16SEP07 -8 Days = 08 SEP 2007 584 SUN | 666 16SEP07 -9 Days = 07 SEP 2007 595 SAT | 609 16SEP07 -10 Days = 06 SEP 2007 551 FRI | 445 16SEP07 -11 Days = 05 SEP 2007 533 THU | 597 16SEP07 -12 Days = 04 SEP 2007 544 WED | 1000 16SEP07 -13 Days = 03 SEP 2007 524 TUE | 769 ______________________________________________________________________________ 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 SEP 2007 -100 -183 -NR- -NR- -931 -6790 15 SEP 2007 -111 -191 -NR- -NR- -1101 -5679 14 SEP 2007 -15 -75 -NR- -NR- -1306 -5190 13 SEP 2007 -92 -182 -NR- -NR- -1386 -9130 12 SEP 2007 -165 -NR- -NR- -NR- -1076 -7912 11 SEP 2007 -62 -NR- -NR- -NR- -457 -6726 10 SEP 2007 -56 -151 0 -NR- -351 -5322 09 SEP 2007 -278 -471 0 10 -367 -4569 08 SEP 2007 -139 -191 0 14 -494 -5886 07 SEP 2007 0 -NR- 0 0 -337 -6290 06 SEP 2007 0 -0 0 2 -711 -6205 05 SEP 2007 129 48 0 4 -1107 -4523 04 SEP 2007 98 111 0 6 -557 -359 03 SEP 2007 -199 -325 0 13 -280 -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) 16 SEP 2007 230 -NR- 0 0 0 -NR- 15 SEP 2007 267 -NR- 0 0 0 -NR- 14 SEP 2007 494 -NR- 0 0 0 -NR- 13 SEP 2007 1041 -NR- 0 0 0 -NR- 12 SEP 2007 145 -NR- 0 0 0 -NR- 11 SEP 2007 429 -NR- 0 0 0 -NR- 10 SEP 2007 307 -NR- 0 0 0 -NR- 09 SEP 2007 414 -NR- 0 0 0 -NR- 08 SEP 2007 210 -NR- 0 0 0 -NR- 07 SEP 2007 1 -NR- 0 0 0 -NR- 06 SEP 2007 301 -NR- 0 0 0 -NR- 05 SEP 2007 526 -NR- 0 0 0 -NR- 04 SEP 2007 534 -NR- 0 0 0 -NR- 03 SEP 2007 1344 -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 17SEP2007 @ 12:16 ** Preliminary Data - Subject to Revision **