U. S. Army Corps of Engineers, Jacksonville District Lake Okeechobee and Vicinity Report Data Ending 2400 hours 21 NOV 2009 _____________________________________________________________________________ Okeechobee Lake Regulation Elevation Last Year 2YRS Ago (ft-NGVD) (ft-NGVD) (ft-NGVD) *Okeechobee Lake Elevation 13.62 14.39 10.33 (Official Elv) Bottom of High Lake Mngmt= 17.25 Top of Water Short Mngmt= 12.52 Currently in Operational Management Band 21NOV (1965-2007) Period of Record Average 14.91 Difference from POR Average -1.30 Simulated Average LORS2008 [1965-2000] 13.85 Difference from Average LORS2008 -0.23 Today Lake Okechobee elevation is determined from the 4 interior stations ++Navigation Depths (Based on 2001 Channel Condition Survey) Route 1 ÷ 7.56' Route 2 ÷ 4.96' Bridge Clearance = 49.93' ______________________________________________________________________________ 4 Interior and 4 Edge Okeechobee Lake Average (Avg-Daily values): L001 L005 L006 LZ40 S4 S352 S308 S133 13.50 13.60 13.65 13.74 13.75 13.84 13.66 13.59 *Combination Okeechobee Avg-Daily Lake Average = 13.67 (*See Note) Interior Okeechobee Lake Average (Avg-Daily values): L001 L005 L006 LZ40 13.50 13.60 13.65 13.74 *Interior Okeechobee Avg-Daily Lake Average = 13.62 (*See Note) Okeechobee Lake Average (Avg-Daily values): (BAD) (BAD) C5 S4 S3 S2 S352 S308 S135 S133 S127 S129 13.67 13.75 13.81 13.74 13.84 13.66 13.54 13.59 13.56 13.67 *Edge Okeechobee Avg-Daily Lake Average = 13.68 (*See Note) ______________________________________________________________________________ Okeechobee Inflows (cfs): S65E 212 S191 0 Fisheating Cr 9 S154 0 S133 Pumps -NR- S135 Pumps 0 S84 0 S127 Pumps 0 S2 Pumps 0 S71 0 S129 Pumps 0 S3 Pumps 0 S72 0 S131 Pumps 0 S4 Pumps 0 Total Inflows: 221 Okeechobee Outflows (cfs): S135 Culverts 0 S354 245 S77 595 S127 Culverts 0 S351 306 S308 226 S129 Culverts 0 S352 228 S131 Culverts L8 Canal Pt -NR- C5 -NR- Total Outflows: 1600 Okeechobee Pan Evaporation (inches): S77 0.05 S308 0.13 Average Pan Evap x 0.75 Pan Coefficient = 0.07" = 0.01' 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 -2118 cfs or -4200 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: 13.28 13.61 -NR- 0 0 0 0 -NR- (cfs) S193: ______ S191: 19.38 13.57 0 0.0 0.0 0.0 S135 Pumps: 13.42 13.55 0 0 0 0 0 (cfs) S135 Culverts: 0 1.2 1.0 North West Shore S65E: 20.88 13.42 212 0.3 0.3 0.3 0.4 0.3 0.2 S127 Pumps: 13.34 13.57 0 0 0 0 0 0 (cfs) S127 Culvert: 0 1.1 S129 Pumps: 13.05 13.68 0 0 0 0 (cfs) S129 Culvert: 0 0.0 S131 Pumps: 12.97 13.74 0 0 0 (cfs) S131 Culvert: Fisheating Creek nr Palmdale 28.28 9 nr Lakeport ______ C5: ______ 13.67 -NR- -NR- -NR- -NR- South Shore S4 Pumps: 10.61 13.69 0 0 0 0 (cfs) S169: 13.76 10.78 0 0.0 0.0 0.0 S310: ______ -NR- S3 Pumps: 10.39 13.73 0 0 0 0 (cfs) S354: 13.73 10.39 245 0.5 0.5 S2 Pumps: 10.42 13.67 0 0 0 0 0 (cfs) S351: 13.67 10.42 306 0.4 0.4 0.4 S352: 13.83 10.59 228 0.3 0.4 C10A: -NR- 13.55 -NR- -NR- 7.0 -NR- -NR- L8 Canal PT ______ -NR- _________________________________________________________________________ Temporary Pumps S351: 10.42 13.67 306 -NR--NR--NR--NR--NR--NR- S352: 10.59 13.83 228 -NR--NR--NR--NR- S354: 10.39 13.73 245 -NR--NR--NR--NR- _________________________________________________________________________ Caloosahatchee River (S77, S78, S79) S47B: 13.21 12.49 2.0 2.0 S47D: 12.56 10.63 8 0.0 S77: Spillway and Sector Flow: 13.66 10.81 590 0.5 1.0 1.0 0.5 Flow Due to Lockages+: 5 S77 Below USGS Flow Gage 556 (TESTING) S78: Spillway and Sector Flow: -NR- -NR- -NR- -NR- -NR- -NR- -NR- Flow Due to Lockages+: -NR- S79: Spillway and Sector Flow: 3.17 1.64 0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 Flow Due to Lockages+: 7 Percent of flow from S77 -NR-% Chloride (ppm) 148 St. Lucie Canal (S308, S80) S308: Spillway and Sector Flow: 13.65 13.57 226 0.0 2.5 2.5 0.0 Flow Due to Lockages+: 0 S308 Below USGS Flow Gage 222 S153: 18.75 13.41 0 0.0 0.0 S80: Spillway and Sector Flow: 13.63 1.51 0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 Flow Due to Lockages+: 21 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 0.00 281 2 S78: -NR- 0.00 0.00 -NR- -NR- S79: 0.00 0.00 0.00 183 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: 18.23 2638.17 4407.64 56 2 S80: 0.01 0.01 0.01 90 0 Okeechobee Average 9.11 202.94 339.05 (Sites S78, S79 and S80 not included) ______________________________________________________________________________ Okeechobee Lake Elevations 21 NOV 2009 13.62 Difference from 21NOV09 21NOV09 -1 Day = 20 NOV 2009 13.63 0.01 21NOV09 -2 Days = 19 NOV 2009 13.65 0.03 21NOV09 -3 Days = 18 NOV 2009 13.67 0.05 21NOV09 -4 Days = 17 NOV 2009 13.69 0.07 21NOV09 -5 Days = 16 NOV 2009 13.71 0.09 21NOV09 -6 Days = 15 NOV 2009 13.73 0.11 21NOV09 -7 Days = 14 NOV 2009 13.75 0.13 21NOV09 -30 Days = 22 OCT 2009 14.17 0.55 21NOV09 -1 Year = 21 NOV 2008 14.39 0.77 21NOV09 -2 Year = 21 NOV 2007 10.33 -3.29 ______________________________________________________________________________ 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 21NOV09 Today = 21 NOV 2009 -2042 SUN | -NR- 21NOV09 -1 Day = 20 NOV 2009 -2457 SAT | -NR- 21NOV09 -2 Days = 19 NOV 2009 -3106 FRI | -NR- 21NOV09 -3 Days = 18 NOV 2009 -3943 THU | -NR- 21NOV09 -4 Days = 17 NOV 2009 -4065 WED | -NR- 21NOV09 -5 Days = 16 NOV 2009 -4155 TUE | -NR- 21NOV09 -6 Days = 15 NOV 2009 -4042 MON | -NR- 21NOV09 -7 Days = 14 NOV 2009 -3738 SUN | -NR- 21NOV09 -8 Days = 13 NOV 2009 -3720 SAT | -NR- 21NOV09 -9 Days = 12 NOV 2009 -3526 FRI | -NR- 21NOV09 -10 Days = 11 NOV 2009 -3352 THU | -NR- 21NOV09 -11 Days = 10 NOV 2009 -3352 WED | -NR- 21NOV09 -12 Days = 09 NOV 2009 -3352 TUE | -2747 21NOV09 -13 Days = 08 NOV 2009 -3407 MON | -1336 ______________________________________________________________________________ ______________________________________________________________________________ S65E Average Flow over previous 14 days | Avg-Daily Flow 21NOV09 Today= 21 NOV 2009 121 SUN | 212 21NOV09 -1 Day = 20 NOV 2009 120 SAT | 91 21NOV09 -2 Days = 19 NOV 2009 121 FRI | 88 21NOV09 -3 Days = 18 NOV 2009 121 THU | 268 21NOV09 -4 Days = 17 NOV 2009 108 WED | 86 21NOV09 -5 Days = 16 NOV 2009 127 TUE | 86 21NOV09 -6 Days = 15 NOV 2009 146 MON | 85 21NOV09 -7 Days = 14 NOV 2009 171 SUN | 84 21NOV09 -8 Days = 13 NOV 2009 171 SAT | 83 21NOV09 -9 Days = 12 NOV 2009 168 FRI | 84 21NOV09 -10 Days = 11 NOV 2009 167 THU | 271 21NOV09 -11 Days = 10 NOV 2009 152 WED | 84 21NOV09 -12 Days = 09 NOV 2009 146 TUE | 83 21NOV09 -13 Days = 08 NOV 2009 152 MON | 83 ______________________________________________________________________________ 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) 21 NOV 2009 694 1179 -NR- -NR- 439 448 20 NOV 2009 506 870 -NR- -NR- 600 484 19 NOV 2009 439 746 -NR- -NR- 509 461 18 NOV 2009 430 729 206 277 745 544 17 NOV 2009 436 746 0 35 701 504 16 NOV 2009 369 466 0 36 722 477 15 NOV 2009 0 10 0 48 389 536 14 NOV 2009 37 256 0 26 292 -NR- 13 NOV 2009 512 1024 0 21 960 920 12 NOV 2009 802 1206 0 18 293 370 11 NOV 2009 194 385 0 38 597 560 10 NOV 2009 197 383 0 16 1151 786 09 NOV 2009 397 728 0 21 1350 329 08 NOV 2009 347 452 0 25 663 199 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) 21 NOV 2009 13 -NR- 607 452 486 -NR- 20 NOV 2009 9 -NR- 924 797 827 -NR- 19 NOV 2009 8 -NR- 732 924 1105 -NR- 18 NOV 2009 9 -NR- 1031 785 1686 -NR- 17 NOV 2009 13 -NR- 1600 637 1360 -NR- 16 NOV 2009 12 -NR- 1489 408 1039 -NR- 15 NOV 2009 16 -NR- 1047 202 1045 -NR- 14 NOV 2009 23 -NR- 972 182 1051 -NR- 13 NOV 2009 12 -NR- 601 175 799 -NR- 12 NOV 2009 12 -NR- 625 188 660 -NR- 11 NOV 2009 8 -NR- 430 236 353 -NR- 10 NOV 2009 5 -NR- 779 208 896 -NR- 09 NOV 2009 11 -NR- 759 256 494 393 08 NOV 2009 23 -NR- 139 7 391 372 *** 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 22NOV2009 @ 13:19 ** Preliminary Data - Subject to Revision **