U. S. Army Corps of Engineers, Jacksonville District Lake Okeechobee and Vicinity Report Data Ending 2400 hours 19 JAN 2009 _____________________________________________________________________________ Okeechobee Lake Regulation Elevation Last Year 2YRS Ago (ft-NGVD) (ft-NGVD) (ft-NGVD) *Okeechobee Lake Elevation 13.64 10.09 11.89 (Official Elv) Bottom of High Lake Mngmt= 17.25 Top of Water Short Mngmt= 12.06 Currently in Operational Management Band 19JAN (1965-2007) Period of Record Average 14.70 Difference from POR Average -1.06 Simulated Average LORS2008 [1965-2000] 13.56 Difference from Average LORS2008 0.09 Today Lake Okechobee elevation is determined from the 4 interior stations ++Navigation Depths (Based on 2001 Channel Condition Survey) Route 1 ÷ 7.58' Route 2 ÷ 4.98' Bridge Clearance = 49.89' ______________________________________________________________________________ 4 Interior and 4 Edge Okeechobee Lake Average (Avg-Daily values): L001 L005 L006 LZ40 S4 S352 S308 S133 13.62 13.58 13.58 13.76 13.55 13.88 13.72 13.75 *Combination Okeechobee Avg-Daily Lake Average = 13.68 (*See Note) Interior Okeechobee Lake Average (Avg-Daily values): L001 L005 L006 LZ40 13.62 13.58 13.58 13.76 *Interior Okeechobee Avg-Daily Lake Average = 13.64 (*See Note) Okeechobee Lake Average (Avg-Daily values): (BAD) (BAD) C5 S4 S3 S2 S352 S308 S135 S133 S127 S129 13.45 13.55 13.64 13.62 13.88 13.72 13.71 13.75 13.63 13.54 *Edge Okeechobee Avg-Daily Lake Average = 13.65 (*See Note) ______________________________________________________________________________ Okeechobee Inflows (cfs): S65E 311 S191 0 Fisheating Cr 8 S154 0 S133 Pumps -NR- S135 Pumps 0 S84 0 S127 Pumps 0 S2 Pumps -NR- S71 0 S129 Pumps 0 S3 Pumps 0 S72 0 S131 Pumps 0 S4 Pumps 0 Total Inflows: 319 Okeechobee Outflows (cfs): S135 Culverts 0 S354 474 S77 347 S127 Culverts 0 S351 652 S308 140 S129 Culverts 0 S352 123 S131 Culverts L8 Canal Pt 135 C5 -NR- Total Outflows: 1872 Okeechobee Pan Evaporation (inches): S77 0.11 S308 0.15 Average Pan Evap x 0.75 Pan Coefficient = 0.10" = 0.01' Lake Average Precipitation using NEXRAD: = 0.01" = 0.00' Evaporation - Precipitation: = 0.09" = 0.01' Evaporation - Precipitation using Lake Area of 730 square miles is equal to 1718 cfs out of the lake. Lake Okeechobee (Change in Storage) Flow is 0 cfs or 0 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: 13.49 14.00 -NR- 0 0 0 0 -NR- (cfs) S193: ______ S191: 19.35 13.99 0 0.0 0.0 0.0 S135 Pumps: 13.29 13.89 0 0 0 0 0 (cfs) S135 Culverts: 0 0.0 1.0 North West Shore S65E: 20.94 13.87 311 0.3 0.3 0.3 0.3 0.3 0.3 S127 Pumps: 13.32 13.70 0 0 0 0 0 0 (cfs) S127 Culvert: 0 0.0 S129 Pumps: 13.14 13.56 0 0 0 0 (cfs) S129 Culvert: 0 0.0 S131 Pumps: 13.20 13.60 0 0 0 (cfs) S131 Culvert: Fisheating Creek nr Palmdale 28.18 8 nr Lakeport ______ C5: ______ 13.45 -NR- -NR- -NR- -NR- South Shore S4 Pumps: 10.74 13.47 0 0 0 0 (cfs) S169: 13.45 10.93 0 0.0 0.0 0.0 S310: 11.03 -NR- S3 Pumps: 11.40 13.45 0 0 0 0 (cfs) S354: 13.45 11.40 474 1.6 1.8 S2 Pumps: 11.31 13.41 -NR- 0 -NR- 0 0 (cfs) S351: 13.41 11.31 652 2.0 1.9 1.9 S352: 13.84 11.51 123 0.2 0.0 C10A: -NR- 13.65 -NR- -NR- 7.0 -NR- -NR- L8 Canal PT 13.74 135 _________________________________________________________________________ Temporary Pumps S351: 11.31 13.41 652 -NR--NR--NR--NR--NR--NR- S352: 11.51 13.84 123 -NR--NR--NR--NR- S354: 11.40 13.45 474 -NR--NR--NR--NR- _________________________________________________________________________ Caloosahatchee River (S77, S78, S79) S47B: 12.99 11.71 1.0 1.0 S47D: 11.67 10.63 0 0.0 S77: Spillway and Sector Flow: 13.45 10.80 344 0.5 0.5 0.5 0.5 Flow Due to Lockages+: 3 S77 Below USGS Flow Gage -NR- (TESTING) S78: Spillway and Sector Flow: 10.71 3.03 413 0.5 0.5 0.5 0.0 Flow Due to Lockages+: 15 S79: Spillway and Sector Flow: 3.01 2.01 519 0.0 0.0 0.5 0.5 0.5 0.5 0.0 0.0 Flow Due to Lockages+: 8 Percent of flow from S77 66% Chloride (ppm) 69 St. Lucie Canal (S308, S80) S308: Spillway and Sector Flow: 13.83 13.61 140 0.0 0.0 0.0 0.0 Flow Due to Lockages+: 0 S308 Below USGS Flow Gage 48 S153: 18.84 13.51 0 0.0 0.0 S80: Spillway and Sector Flow: 13.82 -0.74 0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 Flow Due to Lockages+: 20 Percent of flow from S308 -NR-% Steele Point Top Salinity (mg/ml) 30 Steele Point Bottom Salinity (mg/ml) 31 Speedy Point Top Salinity (mg/ml) 18 Speedy Point Bottom Salinity (mg/ml) 22 + 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 0.06 S193: -NR- 0.00 0.00 -NR- -NR- Okeechobee Field Station: -NR- 0.00 0.14 S135 Pump Station: -NR- 0.00 0.11 S127 Pump Station: -NR- 0.00 0.10 S129 Pump Station: -NR- 0.00 0.08 S131 Pump Station: -NR- 0.00 0.04 S77: 0.00 0.00 0.00 360 0 S78: 0.03 0.03 0.67 35 9 S79: 0.03 0.04 0.13 188 10 S4 Pump Station: -NR- 0.00 0.00 Clewiston Field Station: -NR- 0.00 0.11 S3 Pump Station: -NR- 0.00 0.03 S2 Pump Station: -NR- 0.00 0.09 S308: 0.00 0.00 0.00 158 18 S80: 0.00 0.01 0.05 51 7 Okeechobee Average 0.00 0.00 0.06 (Sites S78, S79 and S80 not included) ______________________________________________________________________________ Okeechobee Lake Elevations 19 JAN 2009 13.64 Difference from 19JAN09 19JAN09 -1 Day = 18 JAN 2009 13.64 0.00 19JAN09 -2 Days = 17 JAN 2009 13.63 -0.01 19JAN09 -3 Days = 16 JAN 2009 13.65 0.01 19JAN09 -4 Days = 15 JAN 2009 13.71 0.07 19JAN09 -5 Days = 14 JAN 2009 13.75 0.11 19JAN09 -6 Days = 13 JAN 2009 13.79 0.15 19JAN09 -7 Days = 12 JAN 2009 13.81 0.17 19JAN09 -30 Days = 20 DEC 2008 14.13 0.49 19JAN09 -1 Year = 19 JAN 2008 10.09 -3.55 19JAN09 -2 Year = 19 JAN 2007 11.89 -1.75 ______________________________________________________________________________ Long Term Mean 30day Avearge ET for Lake Alfred (Inches) = -NR- ______________________________________________________________________________ Lake Okeechobee Net Inflow (LONIN) Average Flow over the previous 14 days | Avg-Daily Flow 19JAN09 Today = 19 JAN 2009 -2161 TUE | 1868 19JAN09 -1 Day = 18 JAN 2009 -2737 MON | 3395 19JAN09 -2 Days = 17 JAN 2009 -3759 SUN | -1979 19JAN09 -3 Days = 16 JAN 2009 -3890 SAT | -9157 19JAN09 -4 Days = 15 JAN 2009 -2773 FRI | -NR- 19JAN09 -5 Days = 14 JAN 2009 -2667 THU | -6563 19JAN09 -6 Days = 13 JAN 2009 -2009 WED | -2478 19JAN09 -7 Days = 12 JAN 2009 -1984 TUE | -251 19JAN09 -8 Days = 11 JAN 2009 -2063 MON | -2126 19JAN09 -9 Days = 10 JAN 2009 -1925 SUN | -NR- 19JAN09 -10 Days = 09 JAN 2009 -1840 SAT | -NR- 19JAN09 -11 Days = 08 JAN 2009 -1840 FRI | -NR- 19JAN09 -12 Days = 07 JAN 2009 -1533 THU | -NR- 19JAN09 -13 Days = 06 JAN 2009 -1421 WED | -NR- ______________________________________________________________________________ ______________________________________________________________________________ S65E Average Flow over previous 14 days | Avg-Daily Flow 19JAN09 Today= 19 JAN 2009 183 TUE | 311 19JAN09 -1 Day = 18 JAN 2009 170 MON | 142 19JAN09 -2 Days = 17 JAN 2009 156 SUN | 128 19JAN09 -3 Days = 16 JAN 2009 149 SAT | 116 19JAN09 -4 Days = 15 JAN 2009 155 FRI | 49 19JAN09 -5 Days = 14 JAN 2009 162 THU | 245 19JAN09 -6 Days = 13 JAN 2009 147 WED | 280 19JAN09 -7 Days = 12 JAN 2009 132 TUE | 255 19JAN09 -8 Days = 11 JAN 2009 118 MON | 152 19JAN09 -9 Days = 10 JAN 2009 119 SUN | 234 19JAN09 -10 Days = 09 JAN 2009 107 SAT | 104 19JAN09 -11 Days = 08 JAN 2009 108 FRI | -NR- 19JAN09 -12 Days = 07 JAN 2009 113 THU | -NR- 19JAN09 -13 Days = 06 JAN 2009 111 WED | -NR- ______________________________________________________________________________ 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) 19 JAN 2009 399 689 526 849 94 278 18 JAN 2009 417 712 379 659 98 1 17 JAN 2009 544 1312 379 836 115 48 16 JAN 2009 1456 2455 749 1279 29 85 15 JAN 2009 1392 2152 741 1276 198 -NR- 14 JAN 2009 748 1259 604 -NR- 54 -36 13 JAN 2009 650 1104 483 793 349 332 12 JAN 2009 670 1239 224 -NR- ****** 52 11 JAN 2009 906 1537 412 -NR- ****** 1 10 JAN 2009 822 1583 467 918 288480 -NR- 09 JAN 2009 823 1580 469 924 383 97 08 JAN 2009 812 1699 465 1056 -6 0 07 JAN 2009 967 1773 779 1453 346 169 06 JAN 2009 601 1135 536 1042 334 -NR- 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) 19 JAN 2009 1044 -NR- 1293 244 940 269 18 JAN 2009 1179 -NR- 756 87 660 325 17 JAN 2009 1329 -NR- 1584 173 938 422 16 JAN 2009 1564 -NR- 1789 569 1630 512 15 JAN 2009 1499 -NR- 2255 527 1646 486 14 JAN 2009 1388 -NR- 1362 95 625 482 13 JAN 2009 1181 -NR- 1001 133 412 507 12 JAN 2009 1257 -NR- 1231 268 420 496 11 JAN 2009 1295 -NR- 1450 256 428 526 10 JAN 2009 1367 -NR- 1711 420 426 494 09 JAN 2009 1372 -NR- 1697 730 910 -NR- 08 JAN 2009 1447 -NR- 361 137 87 -NR- 07 JAN 2009 1235 -NR- -NR- -NR- -NR- -NR- 06 JAN 2009 1199 -NR- -NR- -NR- -NR- 475 *** 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 20JAN2009 @ 08:49 ** Preliminary Data - Subject to Revision **