U. S. Army Corps of Engineers, Jacksonville District Lake Okeechobee and Vicinity Report Data Ending 2400 hours 09 MAR 2008 _____________________________________________________________________________ Okeechobee Lake Regulation Elevation Last Year 2YRS Ago (ft-NGVD) (ft-NGVD) (ft-NGVD) *Okeechobee Lake Elevation 10.12 11.03 15.10 (Official Elv) Regulation Zone Elevations B= 18.50 C= 17.19 D= 16.33 E= 14.19 09MAR (1965-2006) Period of Record Average 14.57 Difference from POR Average -4.45 Simulated Average LORSS2007 TSP[1965-2000] 13.26 Difference from Average LORSS2007 TSP -3.14 Today Lake Okechobee elevation is determined from the 4 interior stations ++Navigation Depths (Based on 2001 Channel Condition Survey) Route 1 ÷ 4.06' Route 2 ÷ 1.46' Bridge Clearance = 53.31' ______________________________________________________________________________ 4 Interior and 4 Edge Okeechobee Lake Average (Avg-Daily values): (BAD) L001 L005 L006 LZ40 S4 S352 S308 S133 9.67 10.12 10.37 10.31 10.63 10.51 10.06 9.82 *Combination Okeechobee Avg-Daily Lake Average = 10.19 (*See Note) Interior Okeechobee Lake Average (Avg-Daily values): L001 L005 L006 LZ40 9.67 10.12 10.37 10.31 *Interior Okeechobee Avg-Daily Lake Average = 10.12 (*See Note) Okeechobee Lake Average (Avg-Daily values): (BAD) (BAD) (BAD) (BAD) (BAD) C5 S4 S3 S2 S352 S308 S135 S133 S127 S129 10.47 10.63 10.74 10.62 10.51 10.06 10.61 9.82 11.12 11.72 *Edge Okeechobee Avg-Daily Lake Average = 10.63 (*See Note) ______________________________________________________________________________ Okeechobee Inflows (cfs): S65E 850 S191 -NR- Fisheating Cr -NR- S154 0 S133 Pumps 0 S135 Pumps 0 S84 0 S127 Pumps 0 S2 Pumps 0 S71 45 S129 Pumps 0 S3 Pumps 0 S72 143 S131 Pumps 0 S4 Pumps 0 Total Inflows: 1038 Okeechobee Outflows (cfs): S135 Culverts 0 S354 -NR- S77 -0 S127 Culverts -NR- S351 0 S308 (BAD) -251 S129 Culverts 0 S352 -NR- S131 Culverts L8 Canal Pt -656 C5 -NR- Total Outflows: -907 (BAD VALUE) Okeechobee Pan Evaporation (inches): S77 0.18 S308 0.17 Average Pan Evap x 0.75 Pan Coefficient = 0.13" = 0.01' Lake Average Precipitation using NEXRAD: = 0.00" = 0.00' Evaporation - Precipitation: = 0.13" = 0.01' Evaporation - Precipitation using Lake Area of 730 square miles is equal to 2576 cfs out of the lake. Lake Okeechobee (Change in Storage) Flow is 3328 cfs or 6600 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: 12.57 9.83 0 0 0 0 0 0 (cfs) S193: ______ S191: 19.69 10.07 -NR- 0.0 0.0 -NR- S135 Pumps: 11.57 10.59 0 0 0 0 0 (cfs) S135 Culverts: 0 0.0 0.0 North West Shore S65E: 20.90 9.60 850 0.4 0.4 0.4 0.2 0.2 0.0 S127 Pumps: 12.76 -NR- 0 0 0 0 0 0 (cfs) S127 Culvert: -NR- -NR- S129 Pumps: 10.38 11.75 0 0 0 0 (cfs) S129 Culvert: 0 0.0 S131 Pumps: 10.96 11.03 0 0 0 (cfs) S131 Culvert: Fisheating Creek nr Palmdale ______ -NR- nr Lakeport ______ C5: ______ 10.47 -NR- -NR- -NR- -NR- South Shore S4 Pumps: 10.55 10.84 0 0 0 0 (cfs) S169: 10.82 10.72 0 0.0 0.0 0.0 S310: ______ -NR- S3 Pumps: ______ -NR- 0 0 0 0 (cfs) S354: -NR- ______ -NR- -NR- -NR- S2 Pumps: 11.21 10.72 0 0 0 0 0 (cfs) S351: 10.72 11.21 0 -NR- -NR- -NR- S352: ______ -NR- -NR- -NR- -NR- C10A: -NR- 11.30 -NR- -NR- 8.0 -NR- -NR- L8 Canal PT 11.38 -656 _________________________________________________________________________ Temporary Pumps S351: 11.21 10.72 0 -NR--NR--NR--NR--NR--NR- S352: -NR- ______ -NR- -NR--NR--NR--NR- S354: ______ -NR- -NR- -NR--NR--NR--NR- _________________________________________________________________________ Caloosahatchee River (S77, S78, S79) S47B: 10.60 11.00 0.0 0.0 S47D: 11.09 10.52 0 0.0 S77: Spillway and Sector Flow: 10.61 10.64 0 0.0 0.0 0.0 0.0 Flow Due to Lockages+: -0 S78: Spillway and Sector Flow: 10.65 3.56 0 0.0 0.0 0.0 0.0 Flow Due to Lockages+: 12 S79: Spillway and Sector Flow: 3.61 -0.37 208 0.0 0.0 0.0 0.5 0.5 0.0 0.0 0.0 Flow Due to Lockages+: 4 Percent of flow from S77 0% Chloride (ppm) 228 St. Lucie Canal (S308, S80) S308: Spillway and Sector Flow: 10.10 10.19 -251 0.0 0.0 0.0 0.0 Flow Due to Lockages+: 0 S308 Below USGS Flow Gage -338 S153: 18.89 10.07 85 0.0 0.5 S80: Spillway and Sector Flow: 10.36 0.41 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) 30 Steele Point Bottom Salinity (mg/ml) 29 Speedy Point Top Salinity (mg/ml) 19 Speedy Point Bottom Salinity (mg/ml) 21 + 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- 0.72 2.29 S193: -NR- 0.00 0.00 -NR- -NR- Okeechobee Field Station: -NR- 0.46 2.00 S135 Pump Station: -NR- 0.26 1.47 S127 Pump Station: -NR- 0.45 2.02 S129 Pump Station: -NR- 0.64 2.07 S131 Pump Station: -NR- 0.51 1.86 S77: 0.00 0.81 2.18 321 6 S78: 0.00 0.74 4.63 67 4 S79: 0.00 0.51 1.05 37 9 S4 Pump Station: -NR- 0.00 0.00 Clewiston Field Station: -NR- 0.35 1.25 S3 Pump Station: -NR- 0.48 1.41 S2 Pump Station: -NR- 0.21 0.98 S308: 0.00 0.35 0.93 60 3 S80: 0.00 0.46 2.45 28 0 Okeechobee Average 0.00 0.40 1.42 (Sites S78, S79 and S80 not included) ______________________________________________________________________________ Okeechobee Lake Elevations 09 MAR 2008 10.12 Difference from 09MAR08 09MAR08 -1 Day = 08 MAR 2008 10.10 -0.02 09MAR08 -2 Days = 07 MAR 2008 10.18 0.06 09MAR08 -3 Days = 06 MAR 2008 10.11 -0.01 09MAR08 -4 Days = 05 MAR 2008 10.06 -0.06 09MAR08 -5 Days = 04 MAR 2008 10.06 -0.06 09MAR08 -6 Days = 03 MAR 2008 10.07 -0.05 09MAR08 -7 Days = 02 MAR 2008 10.06 -0.06 09MAR08 -30 Days = 08 FEB 2008 10.01 -0.11 09MAR08 -1 Year = 09 MAR 2007 11.03 0.91 09MAR08 -2 Year = 09 MAR 2006 15.10 4.98 ______________________________________________________________________________ Long Term Mean 30day Avearge ET for Lake Alfred (Inches) = 3.01 ______________________________________________________________________________ Lake Okeechobee Net Inflow (LONIN) Average Flow over the previous 14 days | Avg-Daily Flow 09MAR08 Today = 09 MAR 2008 -NR- MON | -NR- 09MAR08 -1 Day = 08 MAR 2008 -NR- SUN | -NR- 09MAR08 -2 Days = 07 MAR 2008 -NR- SAT | -NR- 09MAR08 -3 Days = 06 MAR 2008 -NR- FRI | -NR- 09MAR08 -4 Days = 05 MAR 2008 -NR- THU | -NR- 09MAR08 -5 Days = 04 MAR 2008 -NR- WED | -NR- 09MAR08 -6 Days = 03 MAR 2008 -NR- TUE | -NR- 09MAR08 -7 Days = 02 MAR 2008 -NR- MON | -NR- 09MAR08 -8 Days = 01 MAR 2008 -NR- SUN | -NR- 09MAR08 -9 Days = 29 FEB 2008 -NR- SAT | -NR- 09MAR08 -10 Days = 28 FEB 2008 -NR- FRI | -NR- 09MAR08 -11 Days = 27 FEB 2008 -NR- THU | -NR- 09MAR08 -12 Days = 26 FEB 2008 -NR- WED | -NR- 09MAR08 -13 Days = 25 FEB 2008 -NR- TUE | -NR- ______________________________________________________________________________ ______________________________________________________________________________ S65-E Average Flow over previous 14 days | Avg-Daily Flow 09MAR08 Today= 09 MAR 2008 285 MON | 850 09MAR08 -1 Day = 08 MAR 2008 250 SUN | 535 09MAR08 -2 Days = 07 MAR 2008 223 SAT | 153 09MAR08 -3 Days = 06 MAR 2008 224 FRI | 313 09MAR08 -4 Days = 05 MAR 2008 213 THU | 35 09MAR08 -5 Days = 04 MAR 2008 224 WED | 34 09MAR08 -6 Days = 03 MAR 2008 236 TUE | 185 09MAR08 -7 Days = 02 MAR 2008 225 MON | 304 09MAR08 -8 Days = 01 MAR 2008 213 SUN | 264 09MAR08 -9 Days = 29 FEB 2008 215 SAT | 516 09MAR08 -10 Days = 28 FEB 2008 225 FRI | 148 09MAR08 -11 Days = 27 FEB 2008 280 THU | 110 09MAR08 -12 Days = 26 FEB 2008 300 WED | 179 09MAR08 -13 Days = 25 FEB 2008 287 TUE | 360 ______________________________________________________________________________ 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) 09 MAR 2008 0 -0 0 24 -671 -498 08 MAR 2008 0 -0 0 75 -151 -0 07 MAR 2008 0 -NR- 161 288 -5 -0 06 MAR 2008 0 0 107 143 148 1 05 MAR 2008 -7 -63 0 4 31 2 04 MAR 2008 -149 -198 0 8 505 91 03 MAR 2008 3 -79 0 28 135 -0 02 MAR 2008 -20 -135 0 32 -45 -1 01 MAR 2008 -117 -191 0 22 -15 0 29 FEB 2008 129 222 0 18 -28 -0 28 FEB 2008 81 143 0 4 -44 -1 27 FEB 2008 -112 -301 0 6 -53 0 26 FEB 2008 -242 -389 0 2 -144 0 25 FEB 2008 -149 -302 0 14 -41 -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) 09 MAR 2008 420 -NR- 0 -NR- -NR- -1301 08 MAR 2008 3 -NR- 0 -NR- -NR- -1356 07 MAR 2008 3 -NR- 0 -NR- -NR- -1281 06 MAR 2008 5 -NR- 0 -NR- -NR- -1372 05 MAR 2008 1 -NR- 0 -NR- -NR- -1267 04 MAR 2008 4 -NR- 0 -NR- -NR- -1263 03 MAR 2008 4 -NR- 0 -NR- 0 -1262 02 MAR 2008 7 -NR- 0 -NR- 0 -1267 01 MAR 2008 8 -NR- 0 -NR- 0 -1275 29 FEB 2008 5 -NR- 0 -NR- 99 -1257 28 FEB 2008 9 -NR- 0 -NR- 0 -1268 27 FEB 2008 3 -NR- 0 -NR- 0 -1286 26 FEB 2008 1 -NR- 0 -NR- 0 -1338 25 FEB 2008 2 -NR- 0 -NR- 0 -1331 *** 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 10MAR2008 @ 13:16 ** Preliminary Data - Subject to Revision **