U. S. Army Corps of Engineers, Jacksonville District Lake Okeechobee and Vicinity Report Data Ending 2400 hours 21 JAN 2008 _____________________________________________________________________________ Okeechobee Lake Regulation Elevation Last Year 2YRS Ago (ft-NGVD) (ft-NGVD) (ft-NGVD) *Okeechobee Lake Elevation 10.11 11.88 15.32 (Official Elv) Regulation Zone Elevations B= 18.50 C= 17.59 D= 16.80 E= 14.59 21JAN (1965-2006) Period of Record Average 14.77 Difference from POR Average -4.66 Simulated Average LORSS2007 TSP[1965-2000] 13.55 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 ÷ 4.05' Route 2 ÷ 1.45' Bridge Clearance = 53.73' ______________________________________________________________________________ 4 Interior and 4 Edge Okeechobee Lake Average (Avg-Daily values): (BAD) L001 L005 L006 LZ40 S4 S352 S308 S133 9.86 10.15 10.22 10.22 10.60 10.30 9.97 10.00 *Combination Okeechobee Avg-Daily Lake Average = 10.16 (*See Note) Interior Okeechobee Lake Average (Avg-Daily values): L001 L005 L006 LZ40 9.86 10.15 10.22 10.22 *Interior Okeechobee Avg-Daily Lake Average = 10.11 (*See Note) Okeechobee Lake Average (Avg-Daily values): (BAD) (BAD) (BAD) (BAD) (BAD) C5 S4 S3 S2 S352 S308 S135 S133 S127 S129 10.37 10.60 10.59 10.40 10.30 9.97 10.67 10.00 11.09 10.68 *Edge Okeechobee Avg-Daily Lake Average = 10.47 (*See Note) ______________________________________________________________________________ Okeechobee Inflows (cfs): S65E 329 S191 0 Fisheating Cr -NR- S154 0 S133 Pumps -NR- 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: 329 Okeechobee Outflows (cfs): S135 Culverts 0 S354 0 S77 28 S127 Culverts -NR- S351 0 S308 (BAD) -135 S129 Culverts 0 S352 0 S131 Culverts L8 Canal Pt -7 C5 -NR- Total Outflows: -114 (BAD VALUE) Okeechobee Pan Evaporation (inches): S77 0.09 S308 0.09 Average Pan Evap x 0.75 Pan Coefficient = 0.07" = 0.01' 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 8722 cfs or 17300 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: 12.56 10.23 -NR- -NR- -NR- -NR- -NR- -NR- (cfs) S193: ______ S191: 19.38 10.08 0 0.0 0.0 0.0 S135 Pumps: 11.99 10.66 0 0 0 0 0 (cfs) S135 Culverts: 0 0.0 0.1 North West Shore S65E: 20.99 10.10 329 0.2 0.2 0.2 0.1 0.0 0.0 S127 Pumps: 12.75 -NR- 0 0 0 0 0 0 (cfs) S127 Culvert: -NR- -NR- S129 Pumps: 10.29 10.71 0 0 0 0 (cfs) S129 Culvert: 0 0.0 S131 Pumps: 11.09 10.08 0 0 0 (cfs) S131 Culvert: Fisheating Creek nr Palmdale ______ -NR- nr Lakeport ______ C5: ______ 10.37 -NR- -NR- -NR- -NR- South Shore S4 Pumps: 10.70 10.45 0 0 0 0 (cfs) S169: 10.41 10.85 0 0.0 0.0 0.0 S310: ______ -NR- S3 Pumps: 9.79 10.34 0 0 0 0 (cfs) S354: 10.34 9.79 0 -NR- -NR- S2 Pumps: 10.16 10.19 0 0 0 0 0 (cfs) S351: 10.19 10.16 0 -NR- -NR- -NR- S352: ______ -NR- 0 -NR- -NR- C10A: -NR- 9.98 -NR- -NR- 8.0 -NR- -NR- L8 Canal PT 10.08 -7 _________________________________________________________________________ Temporary Pumps S351: 10.16 10.19 0 -NR--NR--NR--NR--NR--NR- S352: -NR- ______ 0 -NR--NR--NR--NR- S354: 9.79 10.34 0 -NR--NR--NR--NR- _________________________________________________________________________ Caloosahatchee River (S77, S78, S79) S47B: 10.31 10.41 5.7 5.7 S47D: 10.36 10.38 0 0.0 S77: Spillway and Sector Flow: 10.42 10.51 28 0.8 0.8 0.8 0.8 Flow Due to Lockages+: 0 S78: Spillway and Sector Flow: 10.40 3.27 0 0.0 0.0 0.0 0.0 Flow Due to Lockages+: 16 S79: Spillway and Sector Flow: 3.41 0.11 0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 Flow Due to Lockages+: 4 Percent of flow from S77 -NR-% Chloride (ppm) 182 St. Lucie Canal (S308, S80) S308: Spillway and Sector Flow: 10.02 9.77 -135 0.0 0.0 0.0 0.0 Flow Due to Lockages+: 0 S308 Below USGS Flow Gage -159 S153: 18.82 9.64 0 0.0 0.0 S80: Spillway and Sector Flow: 9.72 1.17 0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 Flow Due to Lockages+: 5 Percent of flow from S308 -NR-% Steele Point Top Salinity (mg/ml) 32 Steele Point Bottom Salinity (mg/ml) 29 Speedy Point Top Salinity (mg/ml) 19 Speedy Point Bottom Salinity (mg/ml) 23 + 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 0.34 S193: -NR- 0.00 0.00 -NR- -NR- Okeechobee Field Station: -NR- 0.00 0.26 S135 Pump Station: -NR- 0.00 0.14 S127 Pump Station: -NR- 0.00 0.34 S129 Pump Station: -NR- 0.00 0.25 S131 Pump Station: -NR- 0.00 0.29 S77: 0.00 0.62 0.77 335 1 S78: 0.00 0.33 0.33 5 4 S79: 0.00 0.59 0.72 82 7 S4 Pump Station: -NR- 0.00 0.00 Clewiston Field Station: -NR- 0.00 0.06 S3 Pump Station: -NR- 0.00 0.04 S2 Pump Station: -NR- 0.00 0.04 S308: 0.00 0.69 0.78 182 4 S80: 0.12 1.21 1.31 34 5 Okeechobee Average 0.00 0.10 0.25 (Sites S78, S79 and S80 not included) ______________________________________________________________________________ Okeechobee Lake Elevations 21 JAN 2008 10.11 Difference from 21JAN08 21JAN08 -1 Day = 20 JAN 2008 10.06 -0.05 21JAN08 -2 Days = 19 JAN 2008 10.09 -0.02 21JAN08 -3 Days = 18 JAN 2008 10.08 -0.03 21JAN08 -4 Days = 17 JAN 2008 10.09 -0.02 21JAN08 -5 Days = 16 JAN 2008 10.08 -0.03 21JAN08 -6 Days = 15 JAN 2008 10.06 -0.05 21JAN08 -7 Days = 14 JAN 2008 10.09 -0.02 21JAN08 -30 Days = 22 DEC 2007 10.25 0.14 21JAN08 -1 Year = 21 JAN 2007 11.88 1.77 21JAN08 -2 Year = 21 JAN 2006 15.32 5.21 ______________________________________________________________________________ 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 21JAN08 Today = 21 JAN 2008 -135 TUE | 8615 21JAN08 -1 Day = 20 JAN 2008 -715 MON | -5376 21JAN08 -2 Days = 19 JAN 2008 -274 SUN | 1669 21JAN08 -3 Days = 18 JAN 2008 -1088 SAT | -NR- 21JAN08 -4 Days = 17 JAN 2008 -1088 FRI | -NR- 21JAN08 -5 Days = 16 JAN 2008 -1088 THU | 3807 21JAN08 -6 Days = 15 JAN 2008 -1532 WED | -5358 21JAN08 -7 Days = 14 JAN 2008 -1150 TUE | -7636 21JAN08 -8 Days = 13 JAN 2008 -429 MON | 1436 21JAN08 -9 Days = 12 JAN 2008 -594 SUN | -1822 21JAN08 -10 Days = 11 JAN 2008 -392 SAT | 830 21JAN08 -11 Days = 10 JAN 2008 -562 FRI | 2747 21JAN08 -12 Days = 09 JAN 2008 -916 THU | -725 21JAN08 -13 Days = 08 JAN 2008 -724 WED | 190 ______________________________________________________________________________ ______________________________________________________________________________ S65-E Average Flow over previous 14 days | Avg-Daily Flow 21JAN08 Today= 21 JAN 2008 344 TUE | 329 21JAN08 -1 Day = 20 JAN 2008 320 MON | 324 21JAN08 -2 Days = 19 JAN 2008 297 SUN | 358 21JAN08 -3 Days = 18 JAN 2008 272 SAT | 163 21JAN08 -4 Days = 17 JAN 2008 268 FRI | 162 21JAN08 -5 Days = 16 JAN 2008 285 THU | 163 21JAN08 -6 Days = 15 JAN 2008 300 WED | 166 21JAN08 -7 Days = 14 JAN 2008 312 TUE | 166 21JAN08 -8 Days = 13 JAN 2008 318 MON | 346 21JAN08 -9 Days = 12 JAN 2008 303 SUN | 735 21JAN08 -10 Days = 11 JAN 2008 261 SAT | 541 21JAN08 -11 Days = 10 JAN 2008 228 FRI | 541 21JAN08 -12 Days = 09 JAN 2008 204 THU | 511 21JAN08 -13 Days = 08 JAN 2008 186 WED | 311 ______________________________________________________________________________ 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) 21 JAN 2008 61 56 0 31 -316 -268 20 JAN 2008 284 279 0 36 -509 -440 19 JAN 2008 -166 -191 0 26 -90 -0 18 JAN 2008 37 87 0 26 -135 -NR- 17 JAN 2008 55 175 0 -NR- 34 -NR- 16 JAN 2008 281 -NR- 0 6 43 -0 15 JAN 2008 0 0 0 6 -86 -345 14 JAN 2008 66 32 0 6 -220 -1900 13 JAN 2008 -126 -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 0 -32 0 8 316 1894 08 JAN 2008 145 222 0 4 352 137 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) 21 JAN 2008 9 -NR- 0 0 0 -14 20 JAN 2008 3 -NR- 0 0 0 -12 19 JAN 2008 3 -NR- 0 0 0 -25 18 JAN 2008 3 -NR- 246 0 0 -12 17 JAN 2008 5 -NR- 264 87 0 -8 16 JAN 2008 3 -NR- 0 218 0 -11 15 JAN 2008 7 -NR- 0 218 0 -3 14 JAN 2008 5 -NR- 0 123 0 -5 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 *** 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 22JAN2008 @ 07:45 ** Preliminary Data - Subject to Revision **