U. S. Army Corps of Engineers, Jacksonville District Lake Okeechobee and Vicinity Report Data Ending 2400 hours 18 OCT 2009 _____________________________________________________________________________ Okeechobee Lake Regulation Elevation Last Year 2YRS Ago (ft-NGVD) (ft-NGVD) (ft-NGVD) *Okeechobee Lake Elevation 14.24 14.96 10.07 (Official Elv) Bottom of High Lake Mngmt= 17.03 Top of Water Short Mngmt= 12.89 Currently in Operational Management Band 18OCT (1965-2007) Period of Record Average 15.05 Difference from POR Average -0.81 Simulated Average LORS2008 [1965-2000] 13.99 Difference from Average LORS2008 0.25 Today Lake Okechobee elevation is determined from the 4 interior stations ++Navigation Depths (Based on 2001 Channel Condition Survey) Route 1 ÷ 8.18' Route 2 ÷ 5.58' Bridge Clearance = 49.41' ______________________________________________________________________________ 4 Interior and 4 Edge Okeechobee Lake Average (Avg-Daily values): L001 L005 L006 LZ40 S4 S352 S308 S133 13.88 14.10 14.50 14.48 14.57 14.74 14.37 13.89 *Combination Okeechobee Avg-Daily Lake Average = 14.32 (*See Note) Interior Okeechobee Lake Average (Avg-Daily values): L001 L005 L006 LZ40 13.88 14.10 14.50 14.48 *Interior Okeechobee Avg-Daily Lake Average = 14.24 (*See Note) Okeechobee Lake Average (Avg-Daily values): (BAD) (BAD) C5 S4 S3 S2 S352 S308 S135 S133 S127 S129 14.22 14.57 14.88 14.82 14.74 14.37 14.09 13.89 14.04 14.14 *Edge Okeechobee Avg-Daily Lake Average = 14.37 (*See Note) ______________________________________________________________________________ Okeechobee Inflows (cfs): S65E 231 S191 0 Fisheating Cr 28 S154 0 S133 Pumps -NR- S135 Pumps 0 S84 225 S127 Pumps 0 S2 Pumps 0 S71 0 S129 Pumps 0 S3 Pumps 0 S72 0 S131 Pumps 0 S4 Pumps 0 Total Inflows: 484 Okeechobee Outflows (cfs): S135 Culverts 0 S354 0 S77 4 S127 Culverts 0 S351 34 S308 0 S129 Culverts 0 S352 0 S131 Culverts L8 Canal Pt -NR- C5 -NR- Total Outflows: 38 Okeechobee Pan Evaporation (inches): S77 0.21 S308 0.21 Average Pan Evap x 0.75 Pan Coefficient = 0.16" = 0.01' Lake Average Precipitation using NEXRAD: = 0.00" = 0.00' Evaporation - Precipitation: = 0.16" = 0.01' Evaporation - Precipitation using Lake Area of 730 square miles is equal to 3092 cfs out of the lake. Lake Okeechobee (Change in Storage) Flow is -14823 cfs or -29400 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: 13.53 13.84 -NR- 0 0 0 0 -NR- (cfs) S193: ______ S191: 19.42 13.84 0 0.0 0.0 0.0 S135 Pumps: 13.28 14.02 0 0 0 0 0 (cfs) S135 Culverts: 0 0.0 0.0 North West Shore S65E: 21.13 13.84 231 0.0 -0.0 -0.0 -0.0 -0.0 -0.0 S127 Pumps: 13.19 14.01 0 0 0 0 0 0 (cfs) S127 Culvert: 0 0.0 S129 Pumps: 13.07 14.14 0 0 0 0 (cfs) S129 Culvert: 0 0.0 S131 Pumps: 13.05 14.20 0 0 0 (cfs) S131 Culvert: Fisheating Creek nr Palmdale 29.19 28 nr Lakeport ______ C5: ______ 14.22 -NR- -NR- -NR- -NR- South Shore S4 Pumps: 11.01 14.63 0 0 0 0 (cfs) S169: 14.73 11.21 0 0.0 0.0 0.0 S310: ______ -NR- S3 Pumps: 10.09 14.92 0 0 0 0 (cfs) S354: 14.92 10.09 0 0.0 0.0 S2 Pumps: 10.28 14.86 0 0 0 0 0 (cfs) S351: 14.86 10.28 34 0.0 0.0 0.0 S352: 14.78 10.36 0 0.0 0.0 C10A: -NR- 14.38 -NR- -NR- 7.0 -NR- -NR- L8 Canal PT ______ -NR- _________________________________________________________________________ Temporary Pumps S351: 10.28 14.86 34 -NR--NR--NR--NR--NR--NR- S352: 10.36 14.78 0 -NR--NR--NR--NR- S354: 10.09 14.92 0 -NR--NR--NR--NR- _________________________________________________________________________ Caloosahatchee River (S77, S78, S79) S47B: 14.12 10.72 0.0 0.0 S47D: 10.73 10.72 59 9.9 S77: Spillway and Sector Flow: 14.34 10.90 0 0.0 0.0 0.0 0.0 Flow Due to Lockages+: 4 S77 Below USGS Flow Gage -142 (TESTING) S78: Spillway and Sector Flow: 10.76 3.17 0 0.0 0.0 0.0 0.0 Flow Due to Lockages+: 6 S79: Spillway and Sector Flow: 3.35 0.08 84 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 Flow Due to Lockages+: 8 Percent of flow from S77 0% Chloride (ppm) 55 St. Lucie Canal (S308, S80) S308: Spillway and Sector Flow: 14.28 14.09 0 0.0 0.0 0.0 0.0 Flow Due to Lockages+: 0 S308 Below USGS Flow Gage -NR- S153: 18.67 13.97 86 0.0 0.0 S80: Spillway and Sector Flow: 14.19 2.23 0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 Flow Due to Lockages+: 11 Percent of flow from S308 -NR-% Steele Point Top Salinity (mg/ml) -N Steele Point Bottom Salinity (mg/ml) -N 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 0.00 S193: -NR- 0.00 0.00 -NR- -NR- Okeechobee Field Station: -NR- 0.00 0.00 S135 Pump Station: -NR- 0.00 0.00 S127 Pump Station: -NR- 0.00 0.00 S129 Pump Station: -NR- 0.00 0.00 S131 Pump Station: -NR- 0.00 0.00 S77: 0.00 0.00 0.00 145 5 S78: 0.00 0.00 0.00 7 2 S79: 0.00 0.30 0.30 332 1 S4 Pump Station: -NR- 0.00 0.00 Clewiston Field Station: -NR- 0.00 0.00 S3 Pump Station: -NR- 0.00 0.00 S2 Pump Station: -NR- 0.00 0.00 S308: 0.00 0.00 3.92 324 13 S80: 0.00 0.00 0.01 331 4 Okeechobee Average 0.00 0.00 0.30 (Sites S78, S79 and S80 not included) ______________________________________________________________________________ Okeechobee Lake Elevations 18 OCT 2009 14.24 Difference from 18OCT09 18OCT09 -1 Day = 17 OCT 2009 14.31 0.07 18OCT09 -2 Days = 16 OCT 2009 14.36 0.12 18OCT09 -3 Days = 15 OCT 2009 14.38 0.14 18OCT09 -4 Days = 14 OCT 2009 14.39 0.15 18OCT09 -5 Days = 13 OCT 2009 14.41 0.17 18OCT09 -6 Days = 12 OCT 2009 14.43 0.19 18OCT09 -7 Days = 11 OCT 2009 14.44 0.20 18OCT09 -30 Days = 18 SEP 2009 14.51 0.27 18OCT09 -1 Year = 18 OCT 2008 14.96 0.72 18OCT09 -2 Year = 18 OCT 2007 10.07 -4.17 ______________________________________________________________________________ Long Term Mean 30day Avearge ET for Lake Alfred (Inches) = -NR- ______________________________________________________________________________ Lake Okeechobee Net Inflow (LONIN) Average Flow over the previous 14 days | Avg-Daily Flow 18OCT09 Today = 18 OCT 2009 228 MON | -NR- 18OCT09 -1 Day = 17 OCT 2009 227 SUN | -NR- 18OCT09 -2 Days = 16 OCT 2009 -493 SAT | -NR- 18OCT09 -3 Days = 15 OCT 2009 -493 FRI | -NR- 18OCT09 -4 Days = 14 OCT 2009 -691 THU | -NR- 18OCT09 -5 Days = 13 OCT 2009 -1106 WED | -NR- 18OCT09 -6 Days = 12 OCT 2009 -1194 TUE | -NR- 18OCT09 -7 Days = 11 OCT 2009 -1051 MON | -NR- 18OCT09 -8 Days = 10 OCT 2009 -1129 SUN | -NR- 18OCT09 -9 Days = 09 OCT 2009 -1020 SAT | -NR- 18OCT09 -10 Days = 08 OCT 2009 -762 FRI | -2036 18OCT09 -11 Days = 07 OCT 2009 -589 THU | 4449 18OCT09 -12 Days = 06 OCT 2009 -1009 WED | 2452 18OCT09 -13 Days = 05 OCT 2009 -1324 TUE | -3955 ______________________________________________________________________________ ______________________________________________________________________________ S65E Average Flow over previous 14 days | Avg-Daily Flow 18OCT09 Today= 18 OCT 2009 408 MON | 231 18OCT09 -1 Day = 17 OCT 2009 457 SUN | 266 18OCT09 -2 Days = 16 OCT 2009 499 SAT | 376 18OCT09 -3 Days = 15 OCT 2009 526 FRI | 281 18OCT09 -4 Days = 14 OCT 2009 615 THU | 100 18OCT09 -5 Days = 13 OCT 2009 741 WED | 489 18OCT09 -6 Days = 12 OCT 2009 850 TUE | 624 18OCT09 -7 Days = 11 OCT 2009 940 MON | 645 18OCT09 -8 Days = 10 OCT 2009 1031 SUN | 713 18OCT09 -9 Days = 09 OCT 2009 1115 SAT | 89 18OCT09 -10 Days = 08 OCT 2009 1298 FRI | 0 18OCT09 -11 Days = 07 OCT 2009 1511 THU | 349 18OCT09 -12 Days = 06 OCT 2009 1702 WED | 850 18OCT09 -13 Days = 05 OCT 2009 1860 TUE | 697 ______________________________________________________________________________ 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) 18 OCT 2009 0 8 0 11 -NR- 1 17 OCT 2009 0 5 0 18 -NR- 0 16 OCT 2009 145 368 77 172 -NR- 349 15 OCT 2009 468 801 177 245 -NR- 5 14 OCT 2009 44 138 0 11 -NR- 4 13 OCT 2009 0 6 0 11 -NR- 3 12 OCT 2009 0 9 97 206 -NR- 2 11 OCT 2009 0 6 202 361 -NR- 1 10 OCT 2009 0 8 206 366 -NR- 1 09 OCT 2009 0 9 242 630 -NR- 3 08 OCT 2009 0 7 490 959 -NR- 5 07 OCT 2009 0 3 351 478 -NR- 4 06 OCT 2009 0 4 0 7 -NR- 116 05 OCT 2009 0 7 127 382 -NR- 3 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) 18 OCT 2009 182 -NR- 67 0 0 -NR- 17 OCT 2009 309 -NR- 284 2 0 -NR- 16 OCT 2009 3 -NR- 428 458 0 -NR- 15 OCT 2009 9 -NR- 0 0 0 -NR- 14 OCT 2009 4 -NR- 0 0 0 -NR- 13 OCT 2009 8 -NR- 0 0 0 -NR- 12 OCT 2009 547 -NR- 0 0 0 -NR- 11 OCT 2009 141 -NR- 0 0 0 -NR- 10 OCT 2009 81 -NR- 0 0 0 -NR- 09 OCT 2009 575 -NR- 0 0 0 -NR- 08 OCT 2009 1960 -NR- 0 0 0 262 07 OCT 2009 775 -NR- 0 0 0 225 06 OCT 2009 109 -NR- 0 0 0 453 05 OCT 2009 908 -NR- 0 0 278 478 *** 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 19OCT2009 @ 16:15 ** Preliminary Data - Subject to Revision **