U. S. Army Corps of Engineers, Jacksonville District Lake Okeechobee and Vicinity Report Data Ending 2400 hours 21 OCT 2007 _____________________________________________________________________________ Okeechobee Lake Regulation Elevation Last Year 2YRS Ago (ft-NGVD) (ft-NGVD) (ft-NGVD) *Okeechobee Lake Elevation 10.19 12.92 15.58 (Official Elv) Regulation Zone Elevations B= -NR- C= 17.75 D= 17.00 E= 15.34 21OCT (1965-2006) Period of Record Average 15.17 Difference from POR Average -4.98 Simulated Average LORSS2007 TSP[1965-2000] 14.01 Difference from Average LORSS2007 TSP -3.82 Today Lake Okechobee elevation is determined from the 4 interior stations ++Navigation Depths (Based on 2001 Channel Condition Survey) Route 1 ÷ 4.13' Route 2 ÷ 1.53' Bridge Clearance = 52.41' ______________________________________________________________________________ 4 Interior and 4 Edge Okeechobee Lake Average (Avg-Daily values): (BAD) L001 L005 L006 LZ40 S4 S352 S308 S133 10.06 10.23 10.19 10.29 10.42 10.41 -NR- 10.25 *Combination Okeechobee Avg-Daily Lake Average = 10.26 (*See Note) Interior Okeechobee Lake Average (Avg-Daily values): L001 L005 L006 LZ40 10.06 10.23 10.19 10.29 *Interior Okeechobee Avg-Daily Lake Average = 10.19 (*See Note) Okeechobee Lake Average (Avg-Daily values): (BAD) (BAD) (BAD) (BAD) (BAD) C5 S4 S3 S2 S352 S308 S135 S133 S127 S129 10.25 10.42 10.37 10.27 10.41 -NR- 10.64 10.25 11.27 11.00 *Edge Okeechobee Avg-Daily Lake Average = 10.51 (*See Note) ______________________________________________________________________________ Okeechobee Inflows (cfs): S65E 774 S191 84 Fisheating Cr -NR- S154 0 S133 Pumps 0 S135 Pumps 0 S84 42 S127 Pumps 0 S2 Pumps 0 S71 0 S129 Pumps 0 S3 Pumps 0 S72 0 S131 Pumps 0 S4 Pumps 0 Total Inflows: 900 Okeechobee Outflows (cfs): S135 Culverts 0 S354 0 S77 -0 S127 Culverts -NR- S351 0 S308 (BAD) -6856 S129 Culverts 0 S352 0 S131 Culverts L8 Canal Pt -NR- C5 -NR- Total Outflows: -6856 (BAD VALUE) Okeechobee Pan Evaporation (inches): S77 0.11 S308 0.12 Average Pan Evap x 0.75 Pan Coefficient = 0.09" = 0.01' Lake Average Precipitation using NEXRAD: = 0.16" = 0.01' Evaporation - Precipitation: = -0.07" = -0.01' Evaporation - Precipitation using Lake Area of 730 square miles is equal to 1448 cfs into the lake. Lake Okeechobee (Change in Storage) Flow is 4991 cfs or 9900 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: 12.50 10.23 0 0 0 0 0 0 (cfs) S193: ______ S191: 19.43 10.09 84 0.0 0.0 0.0 S135 Pumps: 12.80 10.64 0 0 0 0 0 (cfs) S135 Culverts: 0 0.0 0.0 North West Shore S65E: 21.13 9.98 774 0.3 0.0 0.3 0.3 0.3 0.3 S127 Pumps: 13.36 11.26 0 0 0 0 0 0 (cfs) S127 Culvert: -NR- -NR- S129 Pumps: 10.41 11.12 0 0 0 0 (cfs) S129 Culvert: 0 0.0 S131 Pumps: 12.23 11.73 0 0 0 (cfs) S131 Culvert: Fisheating Creek nr Palmdale ______ -NR- nr Lakeport ______ C5: ______ 10.25 -NR- -NR- -NR- -NR- South Shore S4 Pumps: 10.68 10.49 0 0 0 0 (cfs) S169: 10.50 10.84 0 0.0 0.0 0.0 S310: ______ -NR- S3 Pumps: 10.77 10.42 0 0 0 0 (cfs) S354: 10.42 10.77 0 0.0 0.0 S2 Pumps: 9.97 10.33 0 0 0 0 0 (cfs) S351: 10.33 9.97 0 0.0 0.0 0.0 S352: ______ -NR- 0 0.0 -NR- C10A: -NR- 11.64 -NR- -NR- 8.0 -NR- -NR- L8 Canal PT ______ -NR- _________________________________________________________________________ Temporary Pumps S351: 9.97 10.33 0 -NR--NR--NR--NR--NR--NR- S352: -NR- ______ 0 -NR--NR--NR--NR- S354: 10.77 10.42 0 -NR--NR--NR--NR- _________________________________________________________________________ Caloosahatchee River (S77, S78, S79) S47B: 10.37 10.42 5.8 5.8 S47D: 10.46 10.47 0 0.0 S77: Spillway and Sector Flow: 10.39 10.54 0 0.0 0.0 0.0 0.0 Flow Due to Lockages+: -0 S78: Spillway and Sector Flow: 10.70 3.25 0 0.0 0.0 0.0 0.0 Flow Due to Lockages+: 9 S79: Spillway and Sector Flow: 3.19 1.19 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) 79 St. Lucie Canal (S308, S80) S308: Spillway and Sector Flow: 10.19 11.09 -6856 2.5 2.5 2.5 2.5 Flow Due to Lockages+: 0 S308 Below USGS Flow Gage -1296 S153: 18.93 10.94 158 0.0 0.5 S80: Spillway and Sector Flow: 11.97 0.65 0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 Flow Due to Lockages+: 2 Percent of flow from S308 -NR-% Steele Point Top Salinity (mg/ml) 26 Steele Point Bottom Salinity (mg/ml) 24 Speedy Point Top Salinity (mg/ml) -N Speedy Point Bottom Salinity (mg/ml) -N + 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: 0.42 0.71 0.71 S193: -NR- 0.00 0.00 -NR- -NR- Okeechobee Field Station: 0.20 0.60 0.60 S135 Pump Station: 0.00 0.42 0.42 S127 Pump Station: 0.04 1.62 1.87 S129 Pump Station: 0.07 1.67 1.70 S131 Pump Station: 0.00 0.14 0.14 S77: -NR- 0.34 0.34 340 1 S78: 0.01 5.17 5.27 6 4 S79: 0.04 0.44 0.44 81 5 S4 Pump Station: -NR- 0.00 0.00 Clewiston Field Station: 0.00 0.69 0.69 S3 Pump Station: 0.00 1.53 1.53 S2 Pump Station: 0.00 2.17 2.17 S308: 0.00 1.63 1.63 157 2 S80: 0.14 1.59 1.70 140 3 Okeechobee Average 0.07 0.89 0.91 (Sites S78, S79 and S80 not included) ______________________________________________________________________________ Okeechobee Lake Elevations 21 OCT 2007 10.19 Difference from 21OCT07 21OCT07 -1 Day = 20 OCT 2007 10.16 -0.03 21OCT07 -2 Days = 19 OCT 2007 10.11 -0.08 21OCT07 -3 Days = 18 OCT 2007 10.07 -0.12 21OCT07 -4 Days = 17 OCT 2007 10.05 -0.14 21OCT07 -5 Days = 16 OCT 2007 10.07 -0.12 21OCT07 -6 Days = 15 OCT 2007 10.08 -0.11 21OCT07 -7 Days = 14 OCT 2007 10.08 -0.11 21OCT07 -30 Days = 21 SEP 2007 9.63 -0.56 21OCT07 -1 Year = 21 OCT 2006 12.92 2.73 21OCT07 -2 Year = 21 OCT 2005 15.58 5.39 ______________________________________________________________________________ Long Term Mean 30day Avearge ET for Lake Alfred = 3.54 ______________________________________________________________________________ Lake Okeechobee Net Inflow (LONIN) Average Flow over the previous 14 days | Avg-Daily Flow 21OCT07 Today = 21 OCT 2007 -NR- MON | -NR- 21OCT07 -1 Day = 20 OCT 2007 -NR- SUN | -NR- 21OCT07 -2 Days = 19 OCT 2007 -NR- SAT | -NR- 21OCT07 -3 Days = 18 OCT 2007 -NR- FRI | -NR- 21OCT07 -4 Days = 17 OCT 2007 -NR- THU | -NR- 21OCT07 -5 Days = 16 OCT 2007 -NR- WED | -NR- 21OCT07 -6 Days = 15 OCT 2007 -NR- TUE | -NR- 21OCT07 -7 Days = 14 OCT 2007 -NR- MON | -NR- 21OCT07 -8 Days = 13 OCT 2007 -NR- SUN | -NR- 21OCT07 -9 Days = 12 OCT 2007 -NR- SAT | -NR- 21OCT07 -10 Days = 11 OCT 2007 -NR- FRI | -NR- 21OCT07 -11 Days = 10 OCT 2007 -NR- THU | -NR- 21OCT07 -12 Days = 09 OCT 2007 -NR- WED | -NR- 21OCT07 -13 Days = 08 OCT 2007 -NR- TUE | -NR- ______________________________________________________________________________ ______________________________________________________________________________ S65-E Average Flow over previous 14 days | Avg-Daily Flow 21OCT07 Today= 21 OCT 2007 1088 MON | 774 21OCT07 -1 Day = 20 OCT 2007 1115 SUN | 602 21OCT07 -2 Days = 19 OCT 2007 1103 SAT | 402 21OCT07 -3 Days = 18 OCT 2007 1130 FRI | 560 21OCT07 -4 Days = 17 OCT 2007 1157 THU | 1048 21OCT07 -5 Days = 16 OCT 2007 1166 WED | 697 21OCT07 -6 Days = 15 OCT 2007 1162 TUE | 976 21OCT07 -7 Days = 14 OCT 2007 1110 MON | 1513 21OCT07 -8 Days = 13 OCT 2007 1079 SUN | 1667 21OCT07 -9 Days = 12 OCT 2007 1030 SAT | 1637 21OCT07 -10 Days = 11 OCT 2007 975 FRI | 1306 21OCT07 -11 Days = 10 OCT 2007 942 THU | 1304 21OCT07 -12 Days = 09 OCT 2007 902 WED | 1332 21OCT07 -13 Days = 08 OCT 2007 848 TUE | 1415 ______________________________________________________________________________ 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 OCT 2007 0 -0 0 17 -2569 -13595 20 OCT 2007 1 56 0 88 -1183 -9261 19 OCT 2007 169 286 166 286 -59 -629 18 OCT 2007 48 84 112 153 14 -0 17 OCT 2007 10 10 63 72 -68 0 16 OCT 2007 -2 -56 0 13 -257 -895 15 OCT 2007 -101 -179 0 4 -307 -NR- 14 OCT 2007 -67 -155 0 27 -423 -3447 13 OCT 2007 -108 -197 0 5 -602 -3998 12 OCT 2007 -124 -256 0 5 -662 -4773 11 OCT 2007 -154 -304 0 7 -615 -NR- 10 OCT 2007 -170 -328 0 -NR- -724 -NR- 09 OCT 2007 -162 -316 0 2 -336 -6671 08 OCT 2007 -143 -292 0 12 -1436 -4025 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 OCT 2007 3 -NR- 0 0 0 -NR- 20 OCT 2007 1 -NR- 0 0 0 -NR- 19 OCT 2007 1 -NR- 0 0 0 -NR- 18 OCT 2007 -NR- -NR- 0 0 0 -NR- 17 OCT 2007 1 -NR- 0 0 0 -NR- 16 OCT 2007 3 -NR- 0 0 0 -NR- 15 OCT 2007 2 -NR- 0 0 0 -NR- 14 OCT 2007 5 -NR- 0 0 0 -NR- 13 OCT 2007 3 -NR- 0 0 0 -NR- 12 OCT 2007 43 -NR- 0 0 0 -NR- 11 OCT 2007 223 -NR- 0 0 0 -NR- 10 OCT 2007 230 -NR- 0 0 0 -NR- 09 OCT 2007 254 -NR- 0 0 0 -NR- 08 OCT 2007 327 -NR- 0 0 0 -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 22OCT2007 @ 14:15 ** Preliminary Data - Subject to Revision **