U. S. Army Corps of Engineers, Jacksonville District Lake Okeechobee and Vicinity Report Data Ending 2400 hours 19 OCT 2008 _____________________________________________________________________________ Okeechobee Lake Regulation Elevation Last Year 2YRS Ago (ft-NGVD) (ft-NGVD) (ft-NGVD) *Okeechobee Lake Elevation 14.91 10.11 12.97 (Official Elv) Bottom of High Lake Mngmt= 17.04 Top of Water Short Mngmt= 12.88 Currently in Operational Management Band 19OCT (1965-2007) Period of Record Average 15.06 Difference from POR Average -0.15 Simulated Average LORS2008 [1965-2000] 14.01 Difference from Average LORS2008 0.90 Today Lake Okechobee elevation is determined from the 4 interior stations ++Navigation Depths (Based on 2001 Channel Condition Survey) Route 1 ÷ 8.85' Route 2 ÷ 6.25' Bridge Clearance = 49.13' ______________________________________________________________________________ 4 Interior and 4 Edge Okeechobee Lake Average (Avg-Daily values): L001 L005 L006 LZ40 S4 S352 S308 S133 14.63 14.93 15.02 15.06 15.24 15.16 14.86 14.67 *Combination Okeechobee Avg-Daily Lake Average = 14.95 (*See Note) Interior Okeechobee Lake Average (Avg-Daily values): L001 L005 L006 LZ40 14.63 14.93 15.02 15.06 *Interior Okeechobee Avg-Daily Lake Average = 14.91 (*See Note) Okeechobee Lake Average (Avg-Daily values): (BAD) (BAD) C5 S4 S3 S2 S352 S308 S135 S133 S127 S129 15.10 15.24 15.36 15.23 15.16 14.86 14.67 14.67 14.89 14.86 *Edge Okeechobee Avg-Daily Lake Average = 15.00 (*See Note) ______________________________________________________________________________ Okeechobee Inflows (cfs): S65E 262 S191 57 Fisheating Cr 70 S154 0 S133 Pumps -NR- S135 Pumps 0 S84 231 S127 Pumps 0 S2 Pumps 0 S71 49 S129 Pumps 86 S3 Pumps 0 S72 202 S131 Pumps 62 S4 Pumps 0 Total Inflows: 1019 Okeechobee Outflows (cfs): S135 Culverts 0 S354 -NR- S77 7 S127 Culverts -NR- S351 -NR- S308 209 S129 Culverts 0 S352 0 S131 Culverts L8 Canal Pt 152 C5 -NR- Total Outflows: 368 Okeechobee Pan Evaporation (inches): S77 -NR- S308 0.21 Average Pan Evap x 0.75 Pan Coefficient = -NR-" = -NR-' Lake Average Precipitation using NEXRAD: = 0.00" = 0.00' Evaporation - Precipitation: = -NR-" = -NR-' Evaporation - Precipitation using Lake Area of 730 square miles is equal to -NR- Lake Okeechobee (Change in Storage) Flow is -10588 cfs or -21000 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: 13.84 14.73 -NR- 0 0 0 0 -NR- (cfs) S193: ______ S191: 19.40 14.71 57 0.0 0.0 0.0 S135 Pumps: 13.81 14.75 0 0 0 0 0 (cfs) S135 Culverts: 0 0.0 0.0 North West Shore S65E: 21.07 14.57 262 0.1 0.1 0.1 0.1 0.1 0.1 S127 Pumps: 13.32 14.78 0 0 0 0 0 0 (cfs) S127 Culvert: -NR- -NR- S129 Pumps: 13.08 14.78 86 37 25 25 (cfs) S129 Culvert: 0 0.0 S131 Pumps: 12.85 14.95 62 25 37 (cfs) S131 Culvert: Fisheating Creek nr Palmdale 30.33 70 nr Lakeport ______ C5: ______ 15.10 -NR- -NR- -NR- -NR- South Shore S4 Pumps: 11.23 15.13 0 0 0 0 (cfs) S169: 15.15 11.43 -NR- 0.0 0.0 0.0 S310: ______ -NR- S3 Pumps: ______ -NR- 0 0 0 0 (cfs) S354: -NR- ______ -NR- -NR- -NR- S2 Pumps: 9.54 15.08 0 0 0 0 0 (cfs) S351: 15.08 9.54 -NR- -NR- -NR- -NR- S352: 15.18 10.03 0 0.0 0.0 C10A: -NR- 14.40 -NR- -NR- 7.0 -NR- -NR- L8 Canal PT 14.48 152 _________________________________________________________________________ Temporary Pumps S351: 9.54 15.08 -NR- -NR--NR--NR--NR--NR--NR- S352: 10.03 15.18 0 -NR--NR--NR--NR- S354: ______ -NR- -NR- -NR--NR--NR--NR- _________________________________________________________________________ Caloosahatchee River (S77, S78, S79) S47B: 11.14 11.04 1.0 1.5 S47D: 11.06 10.96 0 0.0 S77: Spillway and Sector Flow: 14.84 11.08 0 0.0 0.0 0.0 0.0 Flow Due to Lockages+: 7 S77 Below USGS Flow Gage 178 (TESTING) S78: Spillway and Sector Flow: 11.01 3.12 163 0.0 0.5 0.5 0.0 Flow Due to Lockages+: 15 S79: Spillway and Sector Flow: 3.15 1.06 836 0.0 0.5 0.5 0.5 0.5 0.5 0.5 0.0 Flow Due to Lockages+: 9 Percent of flow from S77 0% Chloride (ppm) 51 St. Lucie Canal (S308, S80) S308: Spillway and Sector Flow: 14.92 14.37 208 0.0 0.0 2.5 0.0 Flow Due to Lockages+: 1 S308 Below USGS Flow Gage 168 S153: 18.96 14.26 7 0.0 0.0 S80: Spillway and Sector Flow: 14.41 1.45 214 0.0 0.0 0.0 0.0 0.0 0.4 0.0 Flow Due to Lockages+: 17 Percent of flow from S308 97% Steele Point Top Salinity (mg/ml) 29 Steele Point Bottom Salinity (mg/ml) 27 Speedy Point Top Salinity (mg/ml) 14 Speedy Point Bottom Salinity (mg/ml) 11 + 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: 0.00 0.00 0.10 S193: -NR- 0.00 0.00 -NR- -NR- Okeechobee Field Station: 0.00 0.00 0.45 S135 Pump Station: 0.04 0.04 0.18 S127 Pump Station: 0.00 0.00 0.06 S129 Pump Station: 0.01 0.01 0.31 S131 Pump Station: 0.00 0.00 0.13 S77: 0.00 0.00 4.29 209 5 S78: 0.00 0.00 0.10 65 3 S79: 0.00 0.00 0.08 26 5 S4 Pump Station: -NR- 0.00 0.00 Clewiston Field Station: 0.00 0.00 0.19 S3 Pump Station: 0.00 0.00 0.11 S2 Pump Station: 0.00 0.00 0.14 S308: 0.00 0.00 31.11 28 2 S80: 0.00 0.00 0.26 57 1 Okeechobee Average 0.00 0.00 2.85 (Sites S78, S79 and S80 not included) ______________________________________________________________________________ Okeechobee Lake Elevations 19 OCT 2008 14.91 Difference from 19OCT08 19OCT08 -1 Day = 18 OCT 2008 14.96 0.05 19OCT08 -2 Days = 17 OCT 2008 14.97 0.06 19OCT08 -3 Days = 16 OCT 2008 14.96 0.05 19OCT08 -4 Days = 15 OCT 2008 14.97 0.06 19OCT08 -5 Days = 14 OCT 2008 14.98 0.07 19OCT08 -6 Days = 13 OCT 2008 14.99 0.08 19OCT08 -7 Days = 12 OCT 2008 15.00 0.09 19OCT08 -30 Days = 19 SEP 2008 15.11 0.20 19OCT08 -1 Year = 19 OCT 2007 10.11 -4.80 19OCT08 -2 Year = 19 OCT 2006 12.97 -1.94 ______________________________________________________________________________ Long Term Mean 30day Avearge ET for Lake Alfred (Inches) = 3.57 ______________________________________________________________________________ Lake Okeechobee Net Inflow (LONIN) Average Flow over the previous 14 days | Avg-Daily Flow 19OCT08 Today = 19 OCT 2008 -NR- MON | -NR- 19OCT08 -1 Day = 18 OCT 2008 -NR- SUN | -NR- 19OCT08 -2 Days = 17 OCT 2008 -NR- SAT | -NR- 19OCT08 -3 Days = 16 OCT 2008 -NR- FRI | -NR- 19OCT08 -4 Days = 15 OCT 2008 -NR- THU | -NR- 19OCT08 -5 Days = 14 OCT 2008 2912 WED | -NR- 19OCT08 -6 Days = 13 OCT 2008 7055 TUE | -NR- 19OCT08 -7 Days = 12 OCT 2008 4861 MON | -NR- 19OCT08 -8 Days = 11 OCT 2008 3907 SUN | -NR- 19OCT08 -9 Days = 10 OCT 2008 3326 SAT | -NR- 19OCT08 -10 Days = 09 OCT 2008 2899 FRI | -NR- 19OCT08 -11 Days = 08 OCT 2008 2785 THU | -NR- 19OCT08 -12 Days = 07 OCT 2008 2398 WED | -NR- 19OCT08 -13 Days = 06 OCT 2008 2708 TUE | -NR- ______________________________________________________________________________ ______________________________________________________________________________ S65E Average Flow over previous 14 days | Avg-Daily Flow 19OCT08 Today= 19 OCT 2008 480 MON | 262 19OCT08 -1 Day = 18 OCT 2008 484 SUN | 470 19OCT08 -2 Days = 17 OCT 2008 473 SAT | 382 19OCT08 -3 Days = 16 OCT 2008 472 FRI | 501 19OCT08 -4 Days = 15 OCT 2008 473 THU | 321 19OCT08 -5 Days = 14 OCT 2008 481 WED | 389 19OCT08 -6 Days = 13 OCT 2008 482 TUE | 643 19OCT08 -7 Days = 12 OCT 2008 470 MON | 806 19OCT08 -8 Days = 11 OCT 2008 452 SUN | 785 19OCT08 -9 Days = 10 OCT 2008 438 SAT | 688 19OCT08 -10 Days = 09 OCT 2008 452 FRI | 556 19OCT08 -11 Days = 08 OCT 2008 488 THU | 341 19OCT08 -12 Days = 07 OCT 2008 572 WED | 369 19OCT08 -13 Days = 06 OCT 2008 658 TUE | 211 ______________________________________________________________________________ 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) 19 OCT 2008 0 13 249 353 334 415 18 OCT 2008 0 13 0 16 168 346 17 OCT 2008 0 6 0 18 685 552 16 OCT 2008 104 173 109 307 -NR- 144 15 OCT 2008 129 223 344 712 -NR- 362 14 OCT 2008 129 218 688 1178 136 0 13 OCT 2008 128 219 750 1268 139 1 12 OCT 2008 252 476 1071 1778 460 287 11 OCT 2008 824 1712 1298 2376 801 -NR- 10 OCT 2008 1230 -NR- 845 1611 795 -NR- 09 OCT 2008 316 -NR- 811 1587 1978 -NR- 08 OCT 2008 878 1506 1291 2510 3384 -NR- 07 OCT 2008 462 880 1314 2538 4194 3447 06 OCT 2008 693 2089 1306 2863 3927 3244 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) 19 OCT 2008 1675 -NR- -NR- 0 -NR- 302 18 OCT 2008 1045 -NR- -NR- 0 -NR- 329 17 OCT 2008 1325 -NR- -NR- 0 -NR- 283 16 OCT 2008 1176 -NR- -NR- 0 -NR- -NR- 15 OCT 2008 1998 -NR- -NR- 0 -NR- -NR- 14 OCT 2008 4439 -NR- -NR- 0 -NR- -298 13 OCT 2008 4604 -NR- -NR- 0 -NR- -89 12 OCT 2008 4605 -NR- -NR- 0 -NR- -147 11 OCT 2008 4252 -NR- -NR- 0 -NR- -281 10 OCT 2008 5771 -NR- -NR- 0 -NR- 170 09 OCT 2008 6170 -NR- -NR- 0 -NR- 138 08 OCT 2008 6201 -NR- -NR- 0 -NR- -346 07 OCT 2008 6941 -NR- -NR- 0 -NR- -622 06 OCT 2008 7096 -NR- -NR- 0 -NR- -795 *** 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 20OCT2008 @ 17:15 ** Preliminary Data - Subject to Revision **