U. S. Army Corps of Engineers, Jacksonville District Lake Okeechobee and Vicinity Report Data Ending 2400 hours 01 JUN 2008 _____________________________________________________________________________ Okeechobee Lake Regulation Elevation Last Year 2YRS Ago (ft-NGVD) (ft-NGVD) (ft-NGVD) *Okeechobee Lake Elevation 9.58 8.90 12.65 (Official Elv) Bottom of High Lake Mngmt= 16.00 Top of Water Short Mngmt= 10.50 Currently in Water Shortage Management Band 01JUN (1965-2006) Period of Record Average 13.22 Difference from POR Average -3.64 Simulated Average LORS2008 [1965-2000] 11.95 Difference from Average LORS2008 -2.38 Today Lake Okechobee elevation is determined from the 4 interior stations ++Navigation Depths (Based on 2001 Channel Condition Survey) Route 1 ÷ 3.52' Route 2 ÷ 0.92' Bridge Clearance = 53.96' ______________________________________________________________________________ 4 Interior and 4 Edge Okeechobee Lake Average (Avg-Daily values): (BAD) L001 L005 L006 LZ40 S4 S352 S308 S133 9.51 9.63 9.55 9.63 9.66 9.60 9.53 9.74 *Combination Okeechobee Avg-Daily Lake Average = 9.61 (*See Note) Interior Okeechobee Lake Average (Avg-Daily values): L001 L005 L006 LZ40 9.51 9.63 9.55 9.63 *Interior Okeechobee Avg-Daily Lake Average = 9.58 (*See Note) Okeechobee Lake Average (Avg-Daily values): (BAD) (BAD) (BAD) (BAD) (BAD) C5 S4 S3 S2 S352 S308 S135 S133 S127 S129 9.77 9.66 10.11 10.01 9.60 9.53 9.88 9.74 10.72 9.89 *Edge Okeechobee Avg-Daily Lake Average = 9.89 (*See Note) ______________________________________________________________________________ Okeechobee Inflows (cfs): S65E 0 S191 -NR- Fisheating Cr -NR- S154 0 S133 Pumps 0 S135 Pumps 0 S84 0 S127 Pumps -NR- S2 Pumps 0 S71 0 S129 Pumps 0 S3 Pumps 0 S72 0 S131 Pumps 0 S4 Pumps 0 Total Inflows: 0 Okeechobee Outflows (cfs): S135 Culverts 0 S354 440 S77 3 S127 Culverts -NR- S351 660 S308 (BAD) -0 S129 Culverts 0 S352 440 S131 Culverts L8 Canal Pt -5 C5 -NR- Total Outflows: 1538 (BAD VALUE) Okeechobee Pan Evaporation (inches): S77 0.29 S308 0.24 Average Pan Evap x 0.75 Pan Coefficient = 0.20" = 0.02' Lake Average Precipitation using NEXRAD: = 0.02" = 0.00' Evaporation - Precipitation: = 0.18" = 0.01' Evaporation - Precipitation using Lake Area of 730 square miles is equal to 3509 cfs out of the lake. Lake Okeechobee (Change in Storage) Flow is -3126 cfs or -6200 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: 11.54 9.56 0 0 0 0 0 0 (cfs) S193: ______ S191: 18.62 10.07 -NR- 0.0 -NR- 0.0 S135 Pumps: 10.04 9.84 0 0 0 0 0 (cfs) S135 Culverts: 0 0.0 0.0 North West Shore S65E: 20.88 9.30 0 0.0 0.0 0.0 0.0 0.0 0.0 S127 Pumps: 11.72 10.69 -NR- 0 0 0 0 -NR- (cfs) S127 Culvert: -NR- -NR- S129 Pumps: 9.92 9.88 0 0 0 0 (cfs) S129 Culvert: 0 0.0 S131 Pumps: 11.19 9.71 0 0 0 (cfs) S131 Culvert: Fisheating Creek nr Palmdale ______ -NR- nr Lakeport ______ C5: ______ 9.77 -NR- -NR- -NR- -NR- South Shore S4 Pumps: 9.63 9.50 0 0 0 0 (cfs) S169: 9.51 9.82 0 0.0 0.0 0.0 S310: ______ -NR- S3 Pumps: 11.15 10.11 0 0 0 0 (cfs) S354: 10.11 11.15 440 -NR- -NR- S2 Pumps: 10.82 10.01 0 0 0 0 0 (cfs) S351: 10.01 10.82 660 -NR- -NR- -NR- S352: ______ -NR- 440 -NR- -NR- C10A: -NR- 9.53 -NR- -NR- 8.0 -NR- -NR- L8 Canal PT 10.29 -5 _________________________________________________________________________ Temporary Pumps S351: 10.82 10.01 660 -NR--NR--NR--NR--NR--NR- S352: -NR- ______ 440 -NR--NR--NR--NR- S354: 11.15 10.11 440 -NR--NR--NR--NR- _________________________________________________________________________ Caloosahatchee River (S77, S78, S79) S47B: 9.48 9.37 0.0 0.0 S47D: 9.40 9.37 -4 0.0 S77: Spillway and Sector Flow: 9.46 9.45 3 0.0 0.0 0.0 0.0 Flow Due to Lockages+: 0 S78: Spillway and Sector Flow: 9.44 3.07 44 0.0 0.0 0.0 0.0 Flow Due to Lockages+: 12 S79: Spillway and Sector Flow: 3.10 0.46 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) 264 St. Lucie Canal (S308, S80) S308: Spillway and Sector Flow: 9.56 9.54 0 0.0 0.0 0.0 0.0 Flow Due to Lockages+: -0 S308 Below USGS Flow Gage 33 S153: 18.48 9.44 0 0.0 0.0 S80: Spillway and Sector Flow: 9.67 0.68 0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 Flow Due to Lockages+: 3 Percent of flow from S308 -NR-% Steele Point Top Salinity (mg/ml) 35 Steele Point Bottom Salinity (mg/ml) 32 Speedy Point Top Salinity (mg/ml) 24 Speedy Point Bottom Salinity (mg/ml) 25 + 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 0.02 S193: -NR- 0.00 0.00 -NR- -NR- Okeechobee Field Station: -NR- 0.00 0.03 S135 Pump Station: -NR- 0.00 0.01 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 0.02 9.90 107 6 S78: 0.02 0.02 0.02 30 3 S79: 0.09 0.09 0.09 194 2 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 0.83 0.83 261 9 S80: 0.00 0.01 3.02 27 0 Okeechobee Average 0.00 0.07 0.83 (Sites S78, S79 and S80 not included) ______________________________________________________________________________ Okeechobee Lake Elevations 01 JUN 2008 9.58 Difference from 01JUN08 01JUN08 -1 Day = 31 MAY 2008 9.60 0.02 01JUN08 -2 Days = 30 MAY 2008 9.63 0.05 01JUN08 -3 Days = 29 MAY 2008 9.66 0.08 01JUN08 -4 Days = 28 MAY 2008 9.69 0.11 01JUN08 -5 Days = 27 MAY 2008 9.72 0.14 01JUN08 -6 Days = 26 MAY 2008 9.76 0.18 01JUN08 -7 Days = 25 MAY 2008 9.78 0.20 01JUN08 -30 Days = 02 MAY 2008 10.21 0.63 01JUN08 -1 Year = 01 JUN 2007 8.90 -0.68 01JUN08 -2 Year = 01 JUN 2006 12.65 3.07 ______________________________________________________________________________ Long Term Mean 30day Avearge ET for Lake Alfred (Inches) = 5.06 ______________________________________________________________________________ Lake Okeechobee Net Inflow (LONIN) Average Flow over the previous 14 days | Avg-Daily Flow 01JUN08 Today = 01 JUN 2008 -2969 MON | -1583 01JUN08 -1 Day = 31 MAY 2008 -3200 SUN | -2817 01JUN08 -2 Days = 30 MAY 2008 -3276 SAT | -2771 01JUN08 -3 Days = 29 MAY 2008 -3402 FRI | -2823 01JUN08 -4 Days = 28 MAY 2008 -3596 THU | -3282 01JUN08 -5 Days = 27 MAY 2008 -3752 WED | -5172 01JUN08 -6 Days = 26 MAY 2008 -NR- TUE | -2333 01JUN08 -7 Days = 25 MAY 2008 -NR- MON | -NR- 01JUN08 -8 Days = 24 MAY 2008 -NR- SUN | -NR- 01JUN08 -9 Days = 23 MAY 2008 -NR- SAT | -NR- 01JUN08 -10 Days = 22 MAY 2008 -NR- FRI | -NR- 01JUN08 -11 Days = 21 MAY 2008 -NR- THU | -NR- 01JUN08 -12 Days = 20 MAY 2008 -NR- WED | -NR- 01JUN08 -13 Days = 19 MAY 2008 -NR- TUE | -NR- ______________________________________________________________________________ ______________________________________________________________________________ S65E Average Flow over previous 14 days | Avg-Daily Flow 01JUN08 Today= 01 JUN 2008 400 MON | 0 01JUN08 -1 Day = 31 MAY 2008 437 SUN | 0 01JUN08 -2 Days = 30 MAY 2008 454 SAT | 0 01JUN08 -3 Days = 29 MAY 2008 487 FRI | 15 01JUN08 -4 Days = 28 MAY 2008 534 THU | 40 01JUN08 -5 Days = 27 MAY 2008 592 WED | 266 01JUN08 -6 Days = 26 MAY 2008 589 TUE | 766 01JUN08 -7 Days = 25 MAY 2008 580 MON | 188 01JUN08 -8 Days = 24 MAY 2008 652 SUN | 74 01JUN08 -9 Days = 23 MAY 2008 686 SAT | 0 01JUN08 -10 Days = 22 MAY 2008 735 FRI | 391 01JUN08 -11 Days = 21 MAY 2008 774 THU | 1523 01JUN08 -12 Days = 20 MAY 2008 725 WED | 1189 01JUN08 -13 Days = 19 MAY 2008 690 TUE | 1152 ______________________________________________________________________________ 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) 01 JUN 2008 0 6 11 111 65 -0 31 MAY 2008 385 659 158 279 39 -0 30 MAY 2008 679 1127 157 271 -9 -0 29 MAY 2008 621 865 85 128 60 1 28 MAY 2008 205 300 0 9 -115 -0 27 MAY 2008 174 274 0 5 -203 -95 26 MAY 2008 237 279 0 14 -107 -3 25 MAY 2008 0 3 0 15 -170 -6 24 MAY 2008 259 485 76 238 -189 -0 23 MAY 2008 430 842 283 716 -116 -0 22 MAY 2008 294 707 382 610 226 139 21 MAY 2008 385 817 129 255 67 133 20 MAY 2008 314 675 10 50 547 270 19 MAY 2008 130 214 0 5 183 81 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) 01 JUN 2008 2 -NR- 1309 873 873 -10 31 MAY 2008 3 -NR- 1309 873 873 -17 30 MAY 2008 1 -NR- 1309 873 496 -15 29 MAY 2008 3 -NR- 1309 873 654 -76 28 MAY 2008 5 -NR- 1309 527 654 -7 27 MAY 2008 3 -NR- 1309 0 654 -7 26 MAY 2008 3 -NR- 882 0 412 -34 25 MAY 2008 6 -NR- -NR- 0 -NR- -40 24 MAY 2008 5 -NR- -NR- 0 -NR- -14 23 MAY 2008 4 -NR- -NR- 527 -NR- -6 22 MAY 2008 3 -NR- -NR- 873 -NR- -15 21 MAY 2008 1 -NR- -NR- 845 -NR- 30 20 MAY 2008 2 -NR- -NR- 873 -NR- 79 19 MAY 2008 0 -NR- -NR- 827 -NR- 59 *** 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 02JUN2008 @ 14:15 ** Preliminary Data - Subject to Revision **