U. S. Army Corps of Engineers, Jacksonville District Lake Okeechobee and Vicinity Report Data Ending 2400 hours 27 JAN 2008 _____________________________________________________________________________ Okeechobee Lake Regulation Elevation Last Year 2YRS Ago (ft-NGVD) (ft-NGVD) (ft-NGVD) *Okeechobee Lake Elevation 10.08 11.77 15.24 (Official Elv) Regulation Zone Elevations B= 18.50 C= 17.54 D= 16.75 E= 14.54 27JAN (1965-2006) Period of Record Average 14.76 Difference from POR Average -4.68 Simulated Average LORSS2007 TSP[1965-2000] 13.55 Difference from Average LORSS2007 TSP -3.47 Today Lake Okechobee elevation is determined from the 4 interior stations ++Navigation Depths (Based on 2001 Channel Condition Survey) Route 1 ÷ 4.02' Route 2 ÷ 1.42' Bridge Clearance = 53.02' ______________________________________________________________________________ 4 Interior and 4 Edge Okeechobee Lake Average (Avg-Daily values): (BAD) L001 L005 L006 LZ40 S4 S352 S308 S133 9.84 10.04 10.21 10.22 10.36 10.42 10.12 9.98 *Combination Okeechobee Avg-Daily Lake Average = 10.15 (*See Note) Interior Okeechobee Lake Average (Avg-Daily values): L001 L005 L006 LZ40 9.84 10.04 10.21 10.22 *Interior Okeechobee Avg-Daily Lake Average = 10.08 (*See Note) Okeechobee Lake Average (Avg-Daily values): (BAD) (BAD) (BAD) (BAD) (BAD) C5 S4 S3 S2 S352 S308 S135 S133 S127 S129 10.03 10.36 10.45 10.37 10.42 10.12 10.59 9.98 11.04 10.68 *Edge Okeechobee Avg-Daily Lake Average = 10.41 (*See Note) ______________________________________________________________________________ Okeechobee Inflows (cfs): S65E 0 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: 0 Okeechobee Outflows (cfs): S135 Culverts 0 S354 0 S77 -40 S127 Culverts -NR- S351 0 S308 (BAD) -0 S129 Culverts 0 S352 0 S131 Culverts L8 Canal Pt -2 C5 -NR- Total Outflows: -43 (BAD VALUE) Okeechobee Pan Evaporation (inches): S77 0.19 S308 0.09 Average Pan Evap x 0.75 Pan Coefficient = 0.11" = 0.01' Lake Average Precipitation using NEXRAD: = 0.00" = 0.00' Evaporation - Precipitation: = 0.11" = 0.01' Evaporation - Precipitation using Lake Area of 730 square miles is equal to 2061 cfs out of the lake. Lake Okeechobee (Change in Storage) Flow is -3529 cfs or -7000 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: 12.59 10.05 -NR- -NR- -NR- -NR- -NR- -NR- (cfs) S193: ______ S191: 19.19 10.07 0 0.0 0.0 0.0 S135 Pumps: 11.95 10.58 0 0 0 0 0 (cfs) S135 Culverts: 0 0.0 0.0 North West Shore S65E: 21.05 9.60 0 0.0 0.0 0.0 0.0 0.0 0.0 S127 Pumps: 12.71 -NR- 0 0 0 0 0 0 (cfs) S127 Culvert: -NR- -NR- S129 Pumps: 10.26 10.67 0 0 0 0 (cfs) S129 Culvert: 0 0.0 S131 Pumps: 11.04 10.03 0 0 0 (cfs) S131 Culvert: Fisheating Creek nr Palmdale ______ -NR- nr Lakeport ______ C5: ______ 10.03 -NR- -NR- -NR- -NR- South Shore S4 Pumps: 10.37 10.36 0 0 0 0 (cfs) S169: 10.36 10.54 0 0.0 0.0 0.0 S310: ______ -NR- S3 Pumps: 10.54 10.49 0 0 0 0 (cfs) S354: 10.49 10.54 0 -NR- -NR- S2 Pumps: 10.05 10.39 0 0 0 0 0 (cfs) S351: 10.39 10.05 0 -NR- -NR- -NR- S352: ______ -NR- 0 -NR- -NR- C10A: -NR- 10.06 -NR- -NR- 8.0 -NR- -NR- L8 Canal PT 10.19 -2 _________________________________________________________________________ Temporary Pumps S351: 10.05 10.39 0 -NR--NR--NR--NR--NR--NR- S352: -NR- ______ 0 -NR--NR--NR--NR- S354: 10.54 10.49 0 -NR--NR--NR--NR- _________________________________________________________________________ Caloosahatchee River (S77, S78, S79) S47B: 10.21 10.33 0.0 0.0 S47D: 10.37 10.25 0 0.0 S77: Spillway and Sector Flow: 10.29 10.37 -40 0.8 0.8 0.8 0.8 Flow Due to Lockages+: -0 S78: Spillway and Sector Flow: 10.25 3.42 0 0.0 0.0 0.0 0.0 Flow Due to Lockages+: 7 S79: Spillway and Sector Flow: 3.42 0.43 912 0.0 0.5 0.5 0.5 0.5 0.5 0.5 0.0 Flow Due to Lockages+: 2 Percent of flow from S77 -4% Chloride (ppm) 181 St. Lucie Canal (S308, S80) S308: Spillway and Sector Flow: 10.10 10.48 0 0.0 0.0 0.0 0.0 Flow Due to Lockages+: -0 S308 Below USGS Flow Gage -58 S153: 18.88 10.34 0 0.0 0.0 S80: Spillway and Sector Flow: 10.54 0.96 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) 33 Steele Point Bottom Salinity (mg/ml) 30 Speedy Point Top Salinity (mg/ml) 17 Speedy Point Bottom Salinity (mg/ml) 20 + 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 0.40 S193: -NR- 0.00 0.00 -NR- -NR- Okeechobee Field Station: -NR- 0.00 0.18 S135 Pump Station: -NR- 0.00 0.00 S127 Pump Station: -NR- 0.00 0.02 S129 Pump Station: -NR- 0.00 0.00 S131 Pump Station: -NR- 0.00 0.00 S77: 0.00 0.00 0.11 236 4 S78: 0.00 0.00 0.03 71 0 S79: 0.00 0.00 0.02 328 2 S4 Pump Station: -NR- 0.00 0.00 Clewiston Field Station: -NR- 0.00 0.00 S3 Pump Station: -NR- 0.00 0.02 S2 Pump Station: -NR- 0.00 0.08 S308: 0.00 0.00 0.00 117 2 S80: 0.05 0.06 0.19 1 1 Okeechobee Average 0.00 0.00 0.06 (Sites S78, S79 and S80 not included) ______________________________________________________________________________ Okeechobee Lake Elevations 27 JAN 2008 10.08 Difference from 27JAN08 27JAN08 -1 Day = 26 JAN 2008 10.10 0.02 27JAN08 -2 Days = 25 JAN 2008 10.09 0.01 27JAN08 -3 Days = 24 JAN 2008 10.11 0.03 27JAN08 -4 Days = 23 JAN 2008 10.12 0.04 27JAN08 -5 Days = 22 JAN 2008 10.12 0.04 27JAN08 -6 Days = 21 JAN 2008 10.11 0.03 27JAN08 -7 Days = 20 JAN 2008 10.06 -0.02 27JAN08 -30 Days = 28 DEC 2007 10.28 0.20 27JAN08 -1 Year = 27 JAN 2007 11.77 1.69 27JAN08 -2 Year = 27 JAN 2006 15.24 5.16 ______________________________________________________________________________ Long Term Mean 30day Avearge ET for Lake Alfred (Inches) = 1.98 ______________________________________________________________________________ Lake Okeechobee Net Inflow (LONIN) Average Flow over the previous 14 days | Avg-Daily Flow 27JAN08 Today = 27 JAN 2008 -827 MON | -3569 27JAN08 -1 Day = 26 JAN 2008 -410 SUN | 1617 27JAN08 -2 Days = 25 JAN 2008 -696 SAT | -3381 27JAN08 -3 Days = 24 JAN 2008 -346 FRI | -1728 27JAN08 -4 Days = 23 JAN 2008 27 THU | -124 27JAN08 -5 Days = 22 JAN 2008 -23 WED | 1540 27JAN08 -6 Days = 21 JAN 2008 -135 TUE | 8615 27JAN08 -7 Days = 20 JAN 2008 -715 MON | -5376 27JAN08 -8 Days = 19 JAN 2008 -274 SUN | 1669 27JAN08 -9 Days = 18 JAN 2008 -1088 SAT | -NR- 27JAN08 -10 Days = 17 JAN 2008 -1088 FRI | -NR- 27JAN08 -11 Days = 16 JAN 2008 -1088 THU | 3807 27JAN08 -12 Days = 15 JAN 2008 -1532 WED | -5358 27JAN08 -13 Days = 14 JAN 2008 -1150 TUE | -7636 ______________________________________________________________________________ ______________________________________________________________________________ S65-E Average Flow over previous 14 days | Avg-Daily Flow 27JAN08 Today= 27 JAN 2008 159 MON | 0 27JAN08 -1 Day = 26 JAN 2008 184 SUN | 0 27JAN08 -2 Days = 25 JAN 2008 236 SAT | 40 27JAN08 -3 Days = 24 JAN 2008 272 FRI | 126 27JAN08 -4 Days = 23 JAN 2008 302 THU | 105 27JAN08 -5 Days = 22 JAN 2008 331 WED | 119 27JAN08 -6 Days = 21 JAN 2008 344 TUE | 334 27JAN08 -7 Days = 20 JAN 2008 320 MON | 316 27JAN08 -8 Days = 19 JAN 2008 298 SUN | 366 27JAN08 -9 Days = 18 JAN 2008 272 SAT | 163 27JAN08 -10 Days = 17 JAN 2008 268 FRI | 162 27JAN08 -11 Days = 16 JAN 2008 285 THU | 163 27JAN08 -12 Days = 15 JAN 2008 300 WED | 166 27JAN08 -13 Days = 14 JAN 2008 312 TUE | 166 ______________________________________________________________________________ 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) 27 JAN 2008 23 -79 0 14 -116 -0 26 JAN 2008 -169 -294 0 12 -59 -0 25 JAN 2008 198 255 0 19 -236 -161 24 JAN 2008 -89 -127 0 13 -21 -1 23 JAN 2008 -144 -247 0 23 -15 0 22 JAN 2008 -124 -246 0 14 267 2 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 32 87 0 26 -135 -NR- 17 JAN 2008 38 175 0 -NR- 34 -NR- 16 JAN 2008 265 -NR- 0 6 43 -0 15 JAN 2008 0 0 0 6 -86 -345 14 JAN 2008 55 32 0 6 -220 -1900 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) 27 JAN 2008 1812 -NR- 0 0 0 -5 26 JAN 2008 1923 -NR- 0 0 0 -2 25 JAN 2008 1379 -NR- 0 0 0 -5 24 JAN 2008 8 -NR- 0 0 0 -5 23 JAN 2008 4 -NR- 0 0 0 -6 22 JAN 2008 6 -NR- 0 0 0 -5 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 *** 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 28JAN2008 @ 14:15 ** Preliminary Data - Subject to Revision **