U. S. Army Corps of Engineers, Jacksonville District Lake Okeechobee and Vicinity Report Data Ending 2400 hours 15 JUN 2008 _____________________________________________________________________________ Okeechobee Lake Regulation Elevation Last Year 2YRS Ago (ft-NGVD) (ft-NGVD) (ft-NGVD) *Okeechobee Lake Elevation 9.27 8.94 12.27 (Official Elv) Bottom of High Lake Mngmt= 16.07 Top of Water Short Mngmt= 10.79 Currently in Water Shortage Management Band 15JUN (1965-2006) Period of Record Average 13.28 Difference from POR Average -4.01 Simulated Average LORS2008 [1965-2000] 12.02 Difference from Average LORS2008 -2.75 Today Lake Okechobee elevation is determined from the 4 interior stations ++Navigation Depths (Based on 2001 Channel Condition Survey) Route 1 ÷ 3.21' Route 2 ÷ 0.61' Bridge Clearance = 53.37' ______________________________________________________________________________ 4 Interior and 4 Edge Okeechobee Lake Average (Avg-Daily values): (BAD) L001 L005 L006 LZ40 S4 S352 S308 S133 9.15 9.28 9.28 9.38 9.36 9.53 9.28 9.36 *Combination Okeechobee Avg-Daily Lake Average = 9.33 (*See Note) Interior Okeechobee Lake Average (Avg-Daily values): L001 L005 L006 LZ40 9.15 9.28 9.28 9.38 *Interior Okeechobee Avg-Daily Lake Average = 9.27 (*See Note) Okeechobee Lake Average (Avg-Daily values): (BAD) (BAD) (BAD) (BAD) (BAD) C5 S4 S3 S2 S352 S308 S135 S133 S127 S129 9.40 9.36 10.08 10.00 9.53 9.28 9.67 9.36 10.78 9.75 *Edge Okeechobee Avg-Daily Lake Average = 9.72 (*See Note) ______________________________________________________________________________ Okeechobee Inflows (cfs): S65E 343 S191 -NR- Fisheating Cr -NR- S154 0 S133 Pumps -NR- S135 Pumps 0 S84 0 S127 Pumps 0 S2 Pumps -NR- S71 0 S129 Pumps 0 S3 Pumps 0 S72 0 S131 Pumps 0 S4 Pumps 0 Total Inflows: 343 Okeechobee Outflows (cfs): S135 Culverts 0 S354 0 S77 48 S127 Culverts -NR- S351 0 S308 (BAD) -1 S129 Culverts 0 S352 -NR- S131 Culverts L8 Canal Pt 1 C5 -NR- Total Outflows: 48 (BAD VALUE) Okeechobee Pan Evaporation (inches): S77 0.22 S308 0.35 Average Pan Evap x 0.75 Pan Coefficient = 0.21" = 0.02' Lake Average Precipitation using NEXRAD: = 0.18" = 0.02' Evaporation - Precipitation: = 0.03" = 0.00' Evaporation - Precipitation using Lake Area of 730 square miles is equal to 662 cfs out of the lake. Lake Okeechobee (Change in Storage) Flow is -1563 cfs or -3100 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: 11.55 9.21 -NR- -NR- -NR- -NR- -NR- 0 (cfs) S193: ______ S191: 19.00 -NR- -NR- -NR- -NR- 0.0 S135 Pumps: 9.89 9.65 0 0 0 0 0 (cfs) S135 Culverts: 0 0.0 0.0 North West Shore S65E: 20.61 8.29 343 0.2 0.2 0.1 0.2 0.2 0.0 S127 Pumps: 11.78 10.77 0 0 0 0 0 0 (cfs) S127 Culvert: -NR- -NR- S129 Pumps: 9.79 9.74 0 0 0 0 (cfs) S129 Culvert: 0 0.0 S131 Pumps: 11.12 9.72 0 0 0 (cfs) S131 Culvert: Fisheating Creek nr Palmdale ______ -NR- nr Lakeport ______ C5: ______ 9.40 -NR- -NR- -NR- -NR- South Shore S4 Pumps: 9.37 9.44 0 0 0 0 (cfs) S169: 9.46 9.55 0 0.0 0.0 0.0 S310: ______ -NR- S3 Pumps: ______ -NR- 0 0 0 0 (cfs) S354: -NR- ______ 0 -NR- -NR- S2 Pumps: 9.95 10.01 -NR- 0 0 0 -NR- (cfs) S351: 10.01 9.95 0 -NR- -NR- -NR- S352: ______ -NR- -NR- -NR- -NR- C10A: -NR- 9.25 -NR- -NR- 8.0 -NR- -NR- L8 Canal PT 10.27 1 _________________________________________________________________________ Temporary Pumps S351: 9.95 10.01 0 -NR--NR--NR--NR--NR--NR- S352: -NR- ______ -NR- -NR--NR--NR--NR- S354: ______ -NR- 0 -NR--NR--NR--NR- _________________________________________________________________________ Caloosahatchee River (S77, S78, S79) S47B: 9.45 11.13 0.0 0.0 S47D: 11.14 9.44 0 0.0 S77: Spillway and Sector Flow: 9.15 9.48 48 4.1 4.1 4.1 4.1 Flow Due to Lockages+: 0 S77 Below USGS Flow Gage -38 (TESTING) S78: Spillway and Sector Flow: 9.63 3.20 -NR- 0.0 0.0 0.0 0.0 Flow Due to Lockages+: -NR- S79: Spillway and Sector Flow: 3.38 0.27 0 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 -NR-% Chloride (ppm) 240 St. Lucie Canal (S308, S80) S308: Spillway and Sector Flow: 9.32 10.13 0 0.0 0.0 0.0 0.0 Flow Due to Lockages+: -1 S308 Below USGS Flow Gage -21 S153: 18.43 10.09 -NR- -NR- 0.0 S80: Spillway and Sector Flow: 10.35 0.68 0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 Flow Due to Lockages+: 6 Percent of flow from S308 -NR-% Steele Point Top Salinity (mg/ml) 36 Steele Point Bottom Salinity (mg/ml) 32 Speedy Point Top Salinity (mg/ml) 26 Speedy Point Bottom Salinity (mg/ml) 28 + 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: 0.31 0.56 1.81 S193: -NR- 0.00 0.00 -NR- -NR- Okeechobee Field Station: 0.08 1.33 1.58 S135 Pump Station: 0.03 0.22 0.84 S127 Pump Station: 0.05 0.05 0.21 S129 Pump Station: 0.00 0.00 0.38 S131 Pump Station: 0.00 0.00 1.88 S77: 0.50 2.44 6.55 6 1 S78: 0.23 0.23 9.54 7 3 S79: 0.00 1.61 2.38 117 2 S4 Pump Station: -NR- 0.00 0.00 Clewiston Field Station: 0.85 1.30 2.41 S3 Pump Station: 0.63 0.66 1.37 S2 Pump Station: 0.55 1.33 3.26 S308: 0.55 0.84 1.08 220 2 S80: 0.24 0.24 1.13 43 2 Okeechobee Average 0.32 0.67 1.64 (Sites S78, S79 and S80 not included) ______________________________________________________________________________ Okeechobee Lake Elevations 15 JUN 2008 9.27 Difference from 15JUN08 15JUN08 -1 Day = 14 JUN 2008 9.28 0.01 15JUN08 -2 Days = 13 JUN 2008 9.30 0.03 15JUN08 -3 Days = 12 JUN 2008 9.31 0.04 15JUN08 -4 Days = 11 JUN 2008 9.31 0.04 15JUN08 -5 Days = 10 JUN 2008 9.33 0.06 15JUN08 -6 Days = 09 JUN 2008 9.35 0.08 15JUN08 -7 Days = 08 JUN 2008 9.39 0.12 15JUN08 -30 Days = 16 MAY 2008 9.88 0.61 15JUN08 -1 Year = 15 JUN 2007 8.94 -0.33 15JUN08 -2 Year = 15 JUN 2006 12.27 3.00 ______________________________________________________________________________ Long Term Mean 30day Avearge ET for Lake Alfred (Inches) = 4.97 ______________________________________________________________________________ Lake Okeechobee Net Inflow (LONIN) Average Flow over the previous 14 days | Avg-Daily Flow 15JUN08 Today = 15 JUN 2008 -1445 MON | -NR- 15JUN08 -1 Day = 14 JUN 2008 -1491 SUN | -NR- 15JUN08 -2 Days = 13 JUN 2008 -1822 SAT | -NR- 15JUN08 -3 Days = 12 JUN 2008 -2012 FRI | -NR- 15JUN08 -4 Days = 11 JUN 2008 -2147 THU | -NR- 15JUN08 -5 Days = 10 JUN 2008 -2309 WED | -NR- 15JUN08 -6 Days = 09 JUN 2008 -2667 TUE | -NR- 15JUN08 -7 Days = 08 JUN 2008 -2630 MON | -NR- 15JUN08 -8 Days = 07 JUN 2008 -2630 SUN | -NR- 15JUN08 -9 Days = 06 JUN 2008 -2630 SAT | -NR- 15JUN08 -10 Days = 05 JUN 2008 -2630 FRI | -NR- 15JUN08 -11 Days = 04 JUN 2008 -2630 THU | -NR- 15JUN08 -12 Days = 03 JUN 2008 -2630 WED | 227 15JUN08 -13 Days = 02 JUN 2008 -2987 TUE | -3117 ______________________________________________________________________________ ______________________________________________________________________________ S65E Average Flow over previous 14 days | Avg-Daily Flow 15JUN08 Today= 15 JUN 2008 180 MON | 343 15JUN08 -1 Day = 14 JUN 2008 155 SUN | 0 15JUN08 -2 Days = 13 JUN 2008 155 SAT | 152 15JUN08 -3 Days = 12 JUN 2008 144 FRI | 584 15JUN08 -4 Days = 11 JUN 2008 104 THU | 483 15JUN08 -5 Days = 10 JUN 2008 72 WED | 0 15JUN08 -6 Days = 09 JUN 2008 89 TUE | 0 15JUN08 -7 Days = 08 JUN 2008 144 MON | 0 15JUN08 -8 Days = 07 JUN 2008 157 SUN | 140 15JUN08 -9 Days = 06 JUN 2008 152 SAT | 376 15JUN08 -10 Days = 05 JUN 2008 125 FRI | 0 15JUN08 -11 Days = 04 JUN 2008 153 THU | 0 15JUN08 -12 Days = 03 JUN 2008 262 WED | 105 15JUN08 -13 Days = 02 JUN 2008 340 TUE | 333 ______________________________________________________________________________ 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) 15 JUN 2008 91 95 0 -NR- -41 -1 14 JUN 2008 1301 1602 0 0 -86 -2 13 JUN 2008 1188 1317 0 4 -21 -1 12 JUN 2008 62 79 0 7 26 -0 11 JUN 2008 24 30 0 9 -0 -0 10 JUN 2008 57 65 0 5 -42 -0 09 JUN 2008 38 -28 0 5 120 19 08 JUN 2008 9 79 0 18 -14 -0 07 JUN 2008 333 571 169 272 -71 -0 06 JUN 2008 364 623 283 -NR- 11 -1 05 JUN 2008 284 468 0 -NR- -5 -85 04 JUN 2008 266 464 0 2 -64 -1 03 JUN 2008 385 496 0 2 -NR- -0 02 JUN 2008 47 64 0 -NR- -NR- 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) 15 JUN 2008 1 -NR- 0 -NR- 0 2 14 JUN 2008 4 -NR- 0 -NR- 0 3 13 JUN 2008 4 -NR- 0 -NR- 0 3 12 JUN 2008 4 -NR- 518 -NR- 381 3 11 JUN 2008 1011 -NR- 1035 -NR- 873 3 10 JUN 2008 190 -NR- 1073 -NR- 873 -0 09 JUN 2008 3 -NR- 1309 -NR- 873 -2 08 JUN 2008 4 -NR- 1309 -NR- 873 1 07 JUN 2008 4 -NR- 1309 -NR- 873 -1 06 JUN 2008 -NR- -NR- 1309 -NR- 873 3 05 JUN 2008 -NR- -NR- 1309 -NR- 873 2 04 JUN 2008 1 -NR- 1309 -NR- 873 15 03 JUN 2008 2 -NR- 1309 873 873 -17 02 JUN 2008 3 -NR- 1309 873 873 -15 *** 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 16JUN2008 @ 23:15 ** Preliminary Data - Subject to Revision **