U. S. Army Corps of Engineers, Jacksonville District Lake Okeechobee and Vicinity Report Data Ending 2400 hours 13 JAN 2008 _____________________________________________________________________________ Okeechobee Lake Regulation Elevation Last Year 2YRS Ago (ft-NGVD) (ft-NGVD) (ft-NGVD) *Okeechobee Lake Elevation 10.13 11.97 15.42 (Official Elv) Regulation Zone Elevations B= 18.50 C= 17.65 D= 16.88 E= 14.65 13JAN (1965-2006) Period of Record Average 14.78 Difference from POR Average -4.65 Simulated Average LORSS2007 TSP[1965-2000] 13.57 Difference from Average LORSS2007 TSP -3.44 Today Lake Okechobee elevation is determined from the 4 interior stations ++Navigation Depths (Based on 2001 Channel Condition Survey) Route 1 ÷ 4.07' Route 2 ÷ 1.47' Bridge Clearance = 53.02' ______________________________________________________________________________ 4 Interior and 4 Edge Okeechobee Lake Average (Avg-Daily values): (BAD) L001 L005 L006 LZ40 S4 S352 S308 S133 10.07 10.08 10.14 10.23 10.19 10.40 10.18 10.28 *Combination Okeechobee Avg-Daily Lake Average = 10.20 (*See Note) Interior Okeechobee Lake Average (Avg-Daily values): L001 L005 L006 LZ40 10.07 10.08 10.14 10.23 *Interior Okeechobee Avg-Daily Lake Average = 10.13 (*See Note) Okeechobee Lake Average (Avg-Daily values): (BAD) (BAD) (BAD) (BAD) (BAD) C5 S4 S3 S2 S352 S308 S135 S133 S127 S129 9.96 10.19 10.25 10.20 10.40 10.18 10.56 10.28 11.04 10.52 *Edge Okeechobee Avg-Daily Lake Average = 10.36 (*See Note) ______________________________________________________________________________ Okeechobee Inflows (cfs): S65E 365 S191 0 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: 365 Okeechobee Outflows (cfs): S135 Culverts 0 S354 0 S77 -0 S127 Culverts -NR- S351 0 S308 (BAD) -228 S129 Culverts 0 S352 0 S131 Culverts L8 Canal Pt -4 C5 -NR- Total Outflows: -233 (BAD VALUE) Okeechobee Pan Evaporation (inches): S77 0.14 S308 0.01 Average Pan Evap x 0.75 Pan Coefficient = 0.06" = 0.00' Lake Average Precipitation using NEXRAD: = 0.11" = 0.01' Evaporation - Precipitation: = -0.05" = -0.00' Evaporation - Precipitation using Lake Area of 730 square miles is equal to 1055 cfs into the lake. Lake Okeechobee (Change in Storage) Flow is 1664 cfs or 3300 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: 12.71 10.29 0 0 0 0 0 0 (cfs) S193: ______ S191: 19.22 10.17 0 0.0 0.0 0.0 S135 Pumps: 11.98 10.56 0 0 0 0 0 (cfs) S135 Culverts: 0 0.0 0.0 North West Shore S65E: 21.03 9.99 365 0.1 0.1 0.0 0.1 0.0 0.0 S127 Pumps: 12.81 -NR- 0 0 0 0 0 0 (cfs) S127 Culvert: -NR- -NR- S129 Pumps: 10.34 10.51 0 0 0 0 (cfs) S129 Culvert: 0 0.0 S131 Pumps: 11.14 9.96 0 0 0 (cfs) S131 Culvert: Fisheating Creek nr Palmdale ______ -NR- nr Lakeport ______ C5: ______ 9.96 -NR- -NR- -NR- -NR- South Shore S4 Pumps: 10.08 10.36 0 0 0 0 (cfs) S169: 10.33 10.24 0 0.0 0.0 0.0 S310: ______ -NR- S3 Pumps: 9.24 10.33 0 0 0 0 (cfs) S354: 10.33 9.24 0 -NR- -NR- S2 Pumps: 8.96 10.22 0 0 0 0 0 (cfs) S351: 10.22 8.96 0 -NR- -NR- -NR- S352: ______ -NR- 0 -NR- -NR- C10A: -NR- 10.14 -NR- -NR- 8.0 -NR- -NR- L8 Canal PT 10.21 -4 _________________________________________________________________________ Temporary Pumps S351: 8.96 10.22 0 -NR--NR--NR--NR--NR--NR- S352: -NR- ______ 0 -NR--NR--NR--NR- S354: 9.24 10.33 0 -NR--NR--NR--NR- _________________________________________________________________________ Caloosahatchee River (S77, S78, S79) S47B: 10.03 10.04 5.7 5.7 S47D: 10.13 10.01 0 0.0 S77: Spillway and Sector Flow: 10.20 10.14 0 0.0 0.0 0.0 0.0 Flow Due to Lockages+: -0 S78: Spillway and Sector Flow: 10.08 3.42 0 0.0 0.0 0.0 0.0 Flow Due to Lockages+: 7 S79: Spillway and Sector Flow: 3.41 0.76 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) 174 St. Lucie Canal (S308, S80) S308: Spillway and Sector Flow: 10.19 10.48 -228 0.0 2.5 0.0 0.0 Flow Due to Lockages+: -0 S308 Below USGS Flow Gage -45 S153: 18.81 10.34 19 0.1 0.0 S80: Spillway and Sector Flow: 10.67 0.16 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) 29 Steele Point Bottom Salinity (mg/ml) 28 Speedy Point Top Salinity (mg/ml) 17 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- 0.00 0.00 S193: -NR- 0.00 0.00 -NR- -NR- Okeechobee Field Station: -NR- 0.00 0.06 S135 Pump Station: -NR- 0.00 0.02 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 0.00 112 3 S78: 0.00 0.00 0.00 1 0 S79: 0.00 0.00 0.00 313 0 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: 0.01 0.07 0.08 169 0 S80: 0.04 0.21 0.21 53 0 Okeechobee Average 0.00 0.01 0.01 (Sites S78, S79 and S80 not included) ______________________________________________________________________________ Okeechobee Lake Elevations 13 JAN 2008 10.13 Difference from 13JAN08 13JAN08 -1 Day = 12 JAN 2008 10.12 -0.01 13JAN08 -2 Days = 11 JAN 2008 10.13 0.00 13JAN08 -3 Days = 10 JAN 2008 10.13 0.00 13JAN08 -4 Days = 09 JAN 2008 10.12 -0.01 13JAN08 -5 Days = 08 JAN 2008 10.13 0.00 13JAN08 -6 Days = 07 JAN 2008 10.13 0.00 13JAN08 -7 Days = 06 JAN 2008 10.12 -0.01 13JAN08 -30 Days = 14 DEC 2007 10.20 0.07 13JAN08 -1 Year = 13 JAN 2007 11.97 1.84 13JAN08 -2 Year = 13 JAN 2006 15.42 5.29 ______________________________________________________________________________ Long Term Mean 30day Avearge ET for Lake Alfred = -NR- ______________________________________________________________________________ Lake Okeechobee Net Inflow (LONIN) Average Flow over the previous 14 days | Avg-Daily Flow 13JAN08 Today = 13 JAN 2008 -429 MON | 1436 13JAN08 -1 Day = 12 JAN 2008 -594 SUN | -1822 13JAN08 -2 Days = 11 JAN 2008 -392 SAT | 830 13JAN08 -3 Days = 10 JAN 2008 -562 FRI | 2747 13JAN08 -4 Days = 09 JAN 2008 -916 THU | -725 13JAN08 -5 Days = 08 JAN 2008 -724 WED | 190 13JAN08 -6 Days = 07 JAN 2008 -789 TUE | 1655 13JAN08 -7 Days = 06 JAN 2008 -1031 MON | -80 13JAN08 -8 Days = 05 JAN 2008 -853 SUN | -8095 13JAN08 -9 Days = 04 JAN 2008 -430 SAT | -NR- 13JAN08 -10 Days = 03 JAN 2008 -649 FRI | -NR- 13JAN08 -11 Days = 02 JAN 2008 -649 THU | -NR- 13JAN08 -12 Days = 01 JAN 2008 -615 WED | -NR- 13JAN08 -13 Days = 31 DEC 2007 -615 TUE | -NR- ______________________________________________________________________________ ______________________________________________________________________________ S65-E Average Flow over previous 14 days | Avg-Daily Flow 13JAN08 Today= 13 JAN 2008 317 MON | 365 13JAN08 -1 Day = 12 JAN 2008 301 SUN | 727 13JAN08 -2 Days = 11 JAN 2008 260 SAT | 541 13JAN08 -3 Days = 10 JAN 2008 227 FRI | 541 13JAN08 -4 Days = 09 JAN 2008 203 THU | 508 13JAN08 -5 Days = 08 JAN 2008 185 WED | 298 13JAN08 -6 Days = 07 JAN 2008 180 TUE | 0 13JAN08 -7 Days = 06 JAN 2008 182 MON | 0 13JAN08 -8 Days = 05 JAN 2008 206 SUN | 0 13JAN08 -9 Days = 04 JAN 2008 250 SAT | 109 13JAN08 -10 Days = 03 JAN 2008 279 FRI | 398 13JAN08 -11 Days = 02 JAN 2008 284 THU | 377 13JAN08 -12 Days = 01 JAN 2008 288 WED | 327 13JAN08 -13 Days = 31 DEC 2007 289 TUE | 253 ______________________________________________________________________________ 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) 13 JAN 2008 0 -0 0 13 -90 -452 12 JAN 2008 0 -0 0 4 -28 -313 11 JAN 2008 0 0 0 10 131 974 10 JAN 2008 0 0 0 16 349 1821 09 JAN 2008 -1 -32 0 8 316 1894 08 JAN 2008 156 222 0 4 352 137 07 JAN 2008 57 -17 0 14 156 0 06 JAN 2008 -35 -159 0 14 -29 -0 05 JAN 2008 -71 -46 0 8 80 490 04 JAN 2008 184 421 0 10 -NR- 1670 03 JAN 2008 447 841 0 0 -NR- 1628 02 JAN 2008 104 191 0 6 -NR- -274 01 JAN 2008 0 -0 0 8 -NR- -0 31 DEC 2007 -45 -44 0 17 -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) 13 JAN 2008 2 -NR- 0 0 0 -9 12 JAN 2008 8 -NR- 0 0 0 -3 11 JAN 2008 3 -NR- 190 292 190 -3 10 JAN 2008 5 -NR- 173 0 155 -7 09 JAN 2008 2 -NR- 0 0 0 -6 08 JAN 2008 4 -NR- 0 18 0 -7 07 JAN 2008 5 -NR- 0 0 0 -13 06 JAN 2008 2 -NR- 0 0 0 -10 05 JAN 2008 6 -NR- 0 0 0 -10 04 JAN 2008 5 -NR- 0 0 0 -NR- 03 JAN 2008 4 -NR- 173 345 345 -NR- 02 JAN 2008 4 -NR- 436 873 682 -NR- 01 JAN 2008 4 -NR- 436 873 436 -NR- 31 DEC 2007 6 -NR- 190 381 208 -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 14JAN2008 @ 14:15 ** Preliminary Data - Subject to Revision **