U. S. Army Corps of Engineers, Jacksonville District Lake Okeechobee and Vicinity Report Data Ending 2400 hours 26 MAY 2008 _____________________________________________________________________________ Okeechobee Lake Regulation Elevation Last Year 2YRS Ago (ft-NGVD) (ft-NGVD) (ft-NGVD) *Okeechobee Lake Elevation 9.76 9.06 12.67 (Official Elv) Regulation Zone Elevations B= 16.13 C= 16.55 D= 15.57 E= 13.55 26MAY (1965-2006) Period of Record Average 13.24 Difference from POR Average -3.48 Simulated Average LORSS2007 TSP[1965-2000] 11.96 Difference from Average LORSS2007 TSP -2.20 Today Lake Okechobee elevation is determined from the 4 interior stations ++Navigation Depths (Based on 2001 Channel Condition Survey) Route 1 ÷ 3.70' Route 2 ÷ 1.10' Bridge Clearance = 53.57' ______________________________________________________________________________ 4 Interior and 4 Edge Okeechobee Lake Average (Avg-Daily values): (BAD) L001 L005 L006 LZ40 S4 S352 S308 S133 9.45 9.98 9.79 9.81 10.20 9.85 9.52 9.60 *Combination Okeechobee Avg-Daily Lake Average = 9.77 (*See Note) Interior Okeechobee Lake Average (Avg-Daily values): L001 L005 L006 LZ40 9.45 9.98 9.79 9.81 *Interior Okeechobee Avg-Daily Lake Average = 9.76 (*See Note) Okeechobee Lake Average (Avg-Daily values): (BAD) (BAD) (BAD) (BAD) (BAD) C5 S4 S3 S2 S352 S308 S135 S133 S127 S129 10.33 10.20 10.14 10.04 9.85 9.52 10.25 9.60 10.79 10.04 *Edge Okeechobee Avg-Daily Lake Average = 10.08 (*See Note) ______________________________________________________________________________ Okeechobee Inflows (cfs): S65E 744 S191 -NR- Fisheating Cr -NR- S154 0 S133 Pumps 0 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: 744 Okeechobee Outflows (cfs): S135 Culverts 0 S354 -NR- S77 141 S127 Culverts -NR- S351 -NR- S308 (BAD) -1 S129 Culverts 0 S352 0 S131 Culverts L8 Canal Pt -17 C5 -NR- Total Outflows: 122 (BAD VALUE) Okeechobee Pan Evaporation (inches): S77 -NR- S308 -NR- Average Pan Evap x 0.75 Pan Coefficient = -NR-" = -NR-' 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 -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: 11.70 9.72 0 0 0 0 0 0 (cfs) S193: ______ S191: 18.72 10.07 -NR- 0.0 -NR- 0.0 S135 Pumps: 9.94 10.21 0 0 0 0 0 (cfs) S135 Culverts: 0 0.0 0.0 North West Shore S65E: 20.63 9.42 744 0.3 0.3 0.3 0.3 0.3 0.3 S127 Pumps: 11.91 -NR- 0 0 0 0 0 0 (cfs) S127 Culvert: -NR- -NR- S129 Pumps: 10.04 10.01 0 0 0 0 (cfs) S129 Culvert: 0 0.0 S131 Pumps: 11.39 9.93 0 0 0 (cfs) S131 Culvert: Fisheating Creek nr Palmdale ______ -NR- nr Lakeport ______ C5: ______ 10.33 -NR- -NR- -NR- -NR- South Shore S4 Pumps: 9.82 10.02 0 0 0 0 (cfs) S169: 10.01 10.03 0 0.0 0.0 0.0 S310: ______ -NR- S3 Pumps: ______ -NR- 0 0 0 0 (cfs) S354: -NR- ______ -NR- -NR- -NR- S2 Pumps: 9.98 10.04 0 0 0 0 0 (cfs) S351: 10.04 9.98 -NR- -NR- -NR- -NR- S352: ______ -NR- 0 -NR- -NR- C10A: -NR- 9.60 -NR- -NR- 8.0 -NR- -NR- L8 Canal PT 10.29 -17 _________________________________________________________________________ Temporary Pumps S351: 9.98 10.04 -NR- -NR--NR--NR--NR--NR--NR- S352: -NR- ______ 0 -NR--NR--NR--NR- S354: ______ -NR- -NR- -NR--NR--NR--NR- _________________________________________________________________________ Caloosahatchee River (S77, S78, S79) S47B: 9.70 9.20 0.0 0.0 S47D: 9.23 9.39 -27 0.5 S77: Spillway and Sector Flow: 10.01 9.52 140 0.5 0.5 0.5 0.5 Flow Due to Lockages+: 1 S78: Spillway and Sector Flow: 9.44 3.34 0 0.0 0.0 0.0 0.0 Flow Due to Lockages+: 7 S79: Spillway and Sector Flow: 3.31 0.72 0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 Flow Due to Lockages+: 2 Percent of flow from S77 -NR-% Chloride (ppm) 248 St. Lucie Canal (S308, S80) S308: Spillway and Sector Flow: 9.60 9.93 0 0.0 0.0 0.0 0.0 Flow Due to Lockages+: -1 S308 Below USGS Flow Gage -54 S153: 19.09 9.86 0 0.0 0.0 S80: Spillway and Sector Flow: 10.05 0.28 0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 Flow Due to Lockages+: 4 Percent of flow from S308 -NR-% Steele Point Top Salinity (mg/ml) 35 Steele Point Bottom Salinity (mg/ml) 33 Speedy Point Top Salinity (mg/ml) 23 Speedy Point Bottom Salinity (mg/ml) 24 + 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 0.81 S193: -NR- 0.00 0.00 -NR- -NR- Okeechobee Field Station: -NR- 0.00 0.47 S135 Pump Station: -NR- 0.00 0.47 S127 Pump Station: -NR- 0.00 0.28 S129 Pump Station: -NR- 0.00 0.28 S131 Pump Station: -NR- 0.00 0.37 S77: 0.00 0.02 2.22 19 7 S78: 0.00 0.08 0.30 8 2 S79: 0.00 0.09 0.76 51 4 S4 Pump Station: -NR- 0.00 0.00 Clewiston Field Station: -NR- 0.00 0.69 S3 Pump Station: -NR- 0.00 0.36 S2 Pump Station: -NR- 0.00 0.33 S308: 0.00 1.82 1.97 140 2 S80: 0.00 0.77 3.01 22 0 Okeechobee Average 0.00 0.14 0.63 (Sites S78, S79 and S80 not included) ______________________________________________________________________________ Okeechobee Lake Elevations 26 MAY 2008 9.76 Difference from 26MAY08 26MAY08 -1 Day = 25 MAY 2008 9.78 0.02 26MAY08 -2 Days = 24 MAY 2008 9.75 -0.01 26MAY08 -3 Days = 23 MAY 2008 9.76 0.00 26MAY08 -4 Days = 22 MAY 2008 9.75 -0.01 26MAY08 -5 Days = 21 MAY 2008 9.72 -0.04 26MAY08 -6 Days = 20 MAY 2008 9.76 0.00 26MAY08 -7 Days = 19 MAY 2008 9.78 0.02 26MAY08 -30 Days = 26 APR 2008 10.36 0.60 26MAY08 -1 Year = 26 MAY 2007 9.06 -0.70 26MAY08 -2 Year = 26 MAY 2006 12.67 2.91 ______________________________________________________________________________ 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 26MAY08 Today = 26 MAY 2008 -NR- TUE | -NR- 26MAY08 -1 Day = 25 MAY 2008 -NR- MON | -NR- 26MAY08 -2 Days = 24 MAY 2008 -NR- SUN | -NR- 26MAY08 -3 Days = 23 MAY 2008 -NR- SAT | -NR- 26MAY08 -4 Days = 22 MAY 2008 -NR- FRI | -NR- 26MAY08 -5 Days = 21 MAY 2008 -NR- THU | -NR- 26MAY08 -6 Days = 20 MAY 2008 -NR- WED | -NR- 26MAY08 -7 Days = 19 MAY 2008 -NR- TUE | -NR- 26MAY08 -8 Days = 18 MAY 2008 -NR- MON | -NR- 26MAY08 -9 Days = 17 MAY 2008 -NR- SUN | -NR- 26MAY08 -10 Days = 16 MAY 2008 -NR- SAT | -NR- 26MAY08 -11 Days = 15 MAY 2008 -NR- FRI | -NR- 26MAY08 -12 Days = 14 MAY 2008 -NR- THU | -NR- 26MAY08 -13 Days = 13 MAY 2008 -NR- WED | -NR- ______________________________________________________________________________ ______________________________________________________________________________ S65-E Average Flow over previous 14 days | Avg-Daily Flow 26MAY08 Today= 26 MAY 2008 589 TUE | 744 26MAY08 -1 Day = 25 MAY 2008 582 MON | 185 26MAY08 -2 Days = 24 MAY 2008 654 SUN | 71 26MAY08 -3 Days = 23 MAY 2008 689 SAT | 0 26MAY08 -4 Days = 22 MAY 2008 737 FRI | 443 26MAY08 -5 Days = 21 MAY 2008 773 THU | 1507 26MAY08 -6 Days = 20 MAY 2008 725 WED | 1189 26MAY08 -7 Days = 19 MAY 2008 690 TUE | 1152 26MAY08 -8 Days = 18 MAY 2008 662 MON | 515 26MAY08 -9 Days = 17 MAY 2008 671 SUN | 240 26MAY08 -10 Days = 16 MAY 2008 700 SAT | 461 26MAY08 -11 Days = 15 MAY 2008 712 FRI | 669 26MAY08 -12 Days = 14 MAY 2008 726 THU | 859 26MAY08 -13 Days = 13 MAY 2008 764 WED | 216 ______________________________________________________________________________ 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) 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 490 842 323 716 -116 -0 22 MAY 2008 330 707 400 610 226 139 21 MAY 2008 452 817 148 255 67 -NR- 20 MAY 2008 366 675 10 50 547 270 19 MAY 2008 130 214 0 5 183 81 18 MAY 2008 0 151 152 239 -40 1 17 MAY 2008 218 429 155 275 -68 0 16 MAY 2008 515 928 138 271 506 153 15 MAY 2008 646 1229 138 275 346 125 14 MAY 2008 521 214 137 265 223 46 13 MAY 2008 -483 -691 99 134 -53 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) 26 MAY 2008 3 -NR- -NR- 0 -NR- -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 18 MAY 2008 3 -NR- -NR- 873 -NR- 5 17 MAY 2008 4 -NR- -NR- 873 -NR- -0 16 MAY 2008 1 -NR- -NR- 873 -NR- -4 15 MAY 2008 3 -NR- -NR- 873 -NR- -16 14 MAY 2008 3 -NR- -NR- 577 -NR- 9 13 MAY 2008 2 -NR- -NR- 619 -NR- 60 *** 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 27MAY2008 @ 07:15 ** Preliminary Data - Subject to Revision **