U. S. Army Corps of Engineers, Jacksonville District Lake Okeechobee and Vicinity Report Data Ending 2400 hours 04 OCT 2009 _____________________________________________________________________________ Okeechobee Lake Regulation Elevation Last Year 2YRS Ago (ft-NGVD) (ft-NGVD) (ft-NGVD) *Okeechobee Lake Elevation 14.48 14.97 10.02 (Official Elv) Bottom of High Lake Mngmt= 16.80 Top of Water Short Mngmt= 12.98 Currently in Operational Management Band 04OCT (1965-2007) Period of Record Average 14.94 Difference from POR Average -0.46 Simulated Average LORS2008 [1965-2000] 13.82 Difference from Average LORS2008 0.65 Today Lake Okechobee elevation is determined from the 4 interior stations ++Navigation Depths (Based on 2001 Channel Condition Survey) Route 1 ÷ 8.42' Route 2 ÷ 5.82' Bridge Clearance = 49.25' ______________________________________________________________________________ 4 Interior and 4 Edge Okeechobee Lake Average (Avg-Daily values): L001 L005 L006 LZ40 S4 S352 S308 S133 14.38 14.46 14.47 14.59 14.57 14.67 14.47 14.48 *Combination Okeechobee Avg-Daily Lake Average = 14.51 (*See Note) Interior Okeechobee Lake Average (Avg-Daily values): L001 L005 L006 LZ40 14.38 14.46 14.47 14.59 *Interior Okeechobee Avg-Daily Lake Average = 14.48 (*See Note) Okeechobee Lake Average (Avg-Daily values): (BAD) (BAD) C5 S4 S3 S2 S352 S308 S135 S133 S127 S129 14.55 14.57 14.61 14.53 14.67 14.47 14.39 14.48 14.46 14.53 *Edge Okeechobee Avg-Daily Lake Average = 14.53 (*See Note) ______________________________________________________________________________ Okeechobee Inflows (cfs): S65E 892 S191 0 Fisheating Cr 144 S154 0 S133 Pumps -NR- S135 Pumps 0 S84 0 S127 Pumps 0 S2 Pumps 0 S71 252 S129 Pumps 0 S3 Pumps 0 S72 0 S131 Pumps 0 S4 Pumps 0 Total Inflows: 1288 Okeechobee Outflows (cfs): S135 Culverts 0 S354 0 S77 5 S127 Culverts 0 S351 0 S308 1 S129 Culverts 0 S352 0 S131 Culverts L8 Canal Pt 226 C5 -NR- Total Outflows: 231 Okeechobee Pan Evaporation (inches): S77 0.27 S308 0.19 Average Pan Evap x 0.75 Pan Coefficient = 0.17" = 0.01' Lake Average Precipitation using NEXRAD: = 0.00" = 0.00' Evaporation - Precipitation: = 0.17" = 0.01' Evaporation - Precipitation using Lake Area of 730 square miles is equal to 3386 cfs out of the lake. Lake Okeechobee (Change in Storage) Flow is 0 cfs or 0 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: 13.57 14.43 -NR- 0 0 0 0 -NR- (cfs) S193: ______ S191: 19.68 14.40 0 0.0 0.0 0.0 S135 Pumps: 13.47 14.35 0 0 0 0 0 (cfs) S135 Culverts: 0 0.0 0.0 North West Shore S65E: 20.86 14.32 892 0.6 0.6 0.5 0.5 0.5 0.6 S127 Pumps: 13.39 14.48 0 0 0 0 0 0 (cfs) S127 Culvert: 0 0.0 S129 Pumps: 13.12 14.61 0 0 0 0 (cfs) S129 Culvert: 0 0.0 S131 Pumps: 13.03 14.71 0 0 0 (cfs) S131 Culvert: Fisheating Creek nr Palmdale 31.21 144 nr Lakeport ______ C5: ______ 14.55 -NR- -NR- -NR- -NR- South Shore S4 Pumps: 11.11 14.55 0 0 0 0 (cfs) S169: 14.58 11.29 0 0.0 0.0 0.0 S310: ______ -NR- S3 Pumps: 9.23 14.57 0 0 0 0 (cfs) S354: 14.57 9.23 0 0.0 0.0 S2 Pumps: 9.42 14.49 0 0 0 0 0 (cfs) S351: 14.49 9.42 0 0.0 0.0 0.0 S352: 14.65 10.40 0 0.0 0.0 C10A: -NR- 14.33 -NR- -NR- 7.0 -NR- -NR- L8 Canal PT 14.42 226 _________________________________________________________________________ Temporary Pumps S351: 9.42 14.49 0 -NR--NR--NR--NR--NR--NR- S352: 10.40 14.65 0 -NR--NR--NR--NR- S354: 9.23 14.57 0 -NR--NR--NR--NR- _________________________________________________________________________ Caloosahatchee River (S77, S78, S79) S47B: 14.38 10.88 0.0 0.0 S47D: 10.87 10.89 -58 2.0 S77: Spillway and Sector Flow: 14.57 11.08 0 0.0 0.0 0.0 0.0 Flow Due to Lockages+: 5 S77 Below USGS Flow Gage -39 (TESTING) S78: Spillway and Sector Flow: 10.95 2.72 326 0.0 0.5 0.5 0.0 Flow Due to Lockages+: 13 S79: Spillway and Sector Flow: 2.91 1.00 827 0.0 0.0 0.5 0.5 0.5 0.5 0.5 0.0 Flow Due to Lockages+: 7 Percent of flow from S77 0% Chloride (ppm) 52 St. Lucie Canal (S308, S80) S308: Spillway and Sector Flow: 14.43 14.25 0 0.0 0.0 0.0 0.0 Flow Due to Lockages+: 1 S308 Below USGS Flow Gage -NR- S153: 18.89 14.11 36 0.0 0.5 S80: Spillway and Sector Flow: 14.33 1.67 0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 Flow Due to Lockages+: 23 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 0.00 285 3 S78: 0.00 0.00 0.00 151 2 S79: 0.00 0.00 0.00 138 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 0.04 0.05 52 2 S80: 0.00 0.18 0.18 270 0 Okeechobee Average 0.00 0.00 0.00 (Sites S78, S79 and S80 not included) ______________________________________________________________________________ Okeechobee Lake Elevations 04 OCT 2009 14.48 Difference from 04OCT09 04OCT09 -1 Day = 03 OCT 2009 14.48 0.00 04OCT09 -2 Days = 02 OCT 2009 14.50 0.02 04OCT09 -3 Days = 01 OCT 2009 14.51 0.03 04OCT09 -4 Days = 30 SEP 2009 14.52 0.04 04OCT09 -5 Days = 29 SEP 2009 14.54 0.06 04OCT09 -6 Days = 28 SEP 2009 14.55 0.07 04OCT09 -7 Days = 27 SEP 2009 14.55 0.07 04OCT09 -30 Days = 04 SEP 2009 14.25 -0.23 04OCT09 -1 Year = 04 OCT 2008 14.97 0.49 04OCT09 -2 Year = 04 OCT 2007 10.02 -4.46 ______________________________________________________________________________ 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 04OCT09 Today = 04 OCT 2009 -1061 MON | 226 04OCT09 -1 Day = 03 OCT 2009 -1204 SUN | -4096 04OCT09 -2 Days = 02 OCT 2009 -842 SAT | -NR- 04OCT09 -3 Days = 01 OCT 2009 -842 FRI | -1876 04OCT09 -4 Days = 30 SEP 2009 -694 THU | -4011 04OCT09 -5 Days = 29 SEP 2009 -142 WED | -1896 04OCT09 -6 Days = 28 SEP 2009 209 TUE | 237 04OCT09 -7 Days = 27 SEP 2009 202 MON | -1911 04OCT09 -8 Days = 26 SEP 2009 2848 SUN | 171 04OCT09 -9 Days = 25 SEP 2009 3741 SAT | 2338 04OCT09 -10 Days = 24 SEP 2009 4442 FRI | 212 04OCT09 -11 Days = 23 SEP 2009 -NR- THU | -NR- 04OCT09 -12 Days = 22 SEP 2009 -NR- WED | -NR- 04OCT09 -13 Days = 21 SEP 2009 -NR- TUE | -NR- ______________________________________________________________________________ ______________________________________________________________________________ S65E Average Flow over previous 14 days | Avg-Daily Flow 04OCT09 Today= 04 OCT 2009 2057 MON | 892 04OCT09 -1 Day = 03 OCT 2009 2246 SUN | 845 04OCT09 -2 Days = 02 OCT 2009 2434 SAT | 762 04OCT09 -3 Days = 01 OCT 2009 2625 FRI | 1547 04OCT09 -4 Days = 30 SEP 2009 2756 THU | 1864 04OCT09 -5 Days = 29 SEP 2009 2851 WED | 2026 04OCT09 -6 Days = 28 SEP 2009 2965 TUE | 1884 04OCT09 -7 Days = 27 SEP 2009 3106 MON | 1929 04OCT09 -8 Days = 26 SEP 2009 3178 SUN | 1880 04OCT09 -9 Days = 25 SEP 2009 3315 SAT | 2658 04OCT09 -10 Days = 24 SEP 2009 3413 FRI | 2975 04OCT09 -11 Days = 23 SEP 2009 3429 THU | 3029 04OCT09 -12 Days = 22 SEP 2009 3443 WED | 3053 04OCT09 -13 Days = 21 SEP 2009 3485 TUE | 3451 ______________________________________________________________________________ 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) 04 OCT 2009 0 10 385 673 -NR- 2 03 OCT 2009 0 12 381 507 -NR- 3 02 OCT 2009 0 -NR- 454 798 -NR- 3 01 OCT 2009 0 0 694 1179 -NR- 0 30 SEP 2009 0 7 697 1194 -NR- 3 29 SEP 2009 0 4 749 1416 -NR- 2 28 SEP 2009 0 8 1146 1957 -NR- 5 27 SEP 2009 0 8 367 639 -NR- 2 26 SEP 2009 0 12 60 159 -NR- 1 25 SEP 2009 0 17 43 89 -NR- 2 24 SEP 2009 0 9 154 291 -NR- 2 23 SEP 2009 0 2 83 132 -NR- 1 22 SEP 2009 0 -NR- 415 585 -NR- 0 21 SEP 2009 0 0 271 415 -NR- 1 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) 04 OCT 2009 1653 -NR- 0 0 0 447 03 OCT 2009 1064 -NR- 0 0 0 476 02 OCT 2009 1597 -NR- 0 0 0 469 01 OCT 2009 2403 -NR- 0 0 0 479 30 SEP 2009 2067 -NR- 0 0 0 444 29 SEP 2009 3252 -NR- 0 0 0 440 28 SEP 2009 4224 -NR- 0 0 0 469 27 SEP 2009 2913 -NR- 0 0 0 410 26 SEP 2009 2481 -NR- 0 0 0 339 25 SEP 2009 1480 -NR- 0 0 0 437 24 SEP 2009 2077 -NR- 0 0 0 421 23 SEP 2009 2004 -NR- 0 0 0 391 22 SEP 2009 2417 -NR- 0 0 0 389 21 SEP 2009 2537 -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 05OCT2009 @ 16:15 ** Preliminary Data - Subject to Revision **