U. S. Army Corps of Engineers, Jacksonville District Lake Okeechobee and Vicinity Report Data Ending 2400 hours 05 OCT 2008 _____________________________________________________________________________ Okeechobee Lake Regulation Elevation Last Year 2YRS Ago (ft-NGVD) (ft-NGVD) (ft-NGVD) *Okeechobee Lake Elevation 14.97 10.05 13.27 (Official Elv) Bottom of High Lake Mngmt= 16.82 Top of Water Short Mngmt= 12.97 Currently in Operational Management Band 05OCT (1965-2007) Period of Record Average 14.97 Difference from POR Average -0.00 Simulated Average LORS2008 [1965-2000] 13.86 Difference from Average LORS2008 1.11 Today Lake Okechobee elevation is determined from the 4 interior stations ++Navigation Depths (Based on 2001 Channel Condition Survey) Route 1 ÷ 8.91' Route 2 ÷ 6.31' Bridge Clearance = 49.09' ______________________________________________________________________________ 4 Interior and 4 Edge Okeechobee Lake Average (Avg-Daily values): L001 L005 L006 LZ40 S4 S352 S308 S133 14.80 15.00 15.00 15.08 15.15 15.16 14.92 14.97 *Combination Okeechobee Avg-Daily Lake Average = 15.01 (*See Note) Interior Okeechobee Lake Average (Avg-Daily values): L001 L005 L006 LZ40 14.80 15.00 15.00 15.08 *Interior Okeechobee Avg-Daily Lake Average = 14.97 (*See Note) Okeechobee Lake Average (Avg-Daily values): (BAD) (BAD) C5 S4 S3 S2 S352 S308 S135 S133 S127 S129 15.16 15.15 15.17 15.06 15.16 14.92 14.81 14.97 14.91 14.94 *Edge Okeechobee Avg-Daily Lake Average = 15.02 (*See Note) ______________________________________________________________________________ Okeechobee Inflows (cfs): S65E 306 S191 75 Fisheating Cr -NR- S154 0 S133 Pumps -NR- S135 Pumps 0 S84 0 S127 Pumps 0 S2 Pumps 0 S71 368 S129 Pumps 0 S3 Pumps 0 S72 370 S131 Pumps 0 S4 Pumps 0 Total Inflows: 1119 Okeechobee Outflows (cfs): S135 Culverts 0 S354 -NR- S77 492 S127 Culverts -NR- S351 -NR- S308 1168 S129 Culverts 0 S352 0 S131 Culverts L8 Canal Pt -230 C5 -NR- Total Outflows: 1430 Okeechobee Pan Evaporation (inches): S77 0.14 S308 0.18 Average Pan Evap x 0.75 Pan Coefficient = 0.12" = 0.01' Lake Average Precipitation using NEXRAD: = 0.04" = 0.00' Evaporation - Precipitation: = 0.08" = 0.01' Evaporation - Precipitation using Lake Area of 730 square miles is equal to 1570 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: 13.58 15.01 -NR- 0 0 0 0 -NR- (cfs) S193: ______ S191: 19.66 14.69 75 0.0 0.1 0.0 S135 Pumps: 13.45 14.83 0 0 0 0 0 (cfs) S135 Culverts: 0 0.0 0.0 North West Shore S65E: 20.90 14.88 306 0.2 0.2 0.2 0.2 0.2 0.2 S127 Pumps: 13.56 14.92 0 0 0 0 0 0 (cfs) S127 Culvert: -NR- -NR- S129 Pumps: 13.17 14.88 0 0 0 0 (cfs) S129 Culvert: 0 0.0 S131 Pumps: 13.17 15.02 0 0 0 (cfs) S131 Culvert: Fisheating Creek nr Palmdale 27.19 -NR- nr Lakeport ______ C5: ______ 15.16 -NR- -NR- -NR- -NR- South Shore S4 Pumps: 11.08 15.08 0 0 0 0 (cfs) S169: 15.11 11.28 -NR- -NR- 0.0 0.0 S310: ______ -NR- S3 Pumps: ______ -NR- 0 0 0 0 (cfs) S354: -NR- ______ -NR- -NR- -NR- S2 Pumps: 9.93 15.03 0 0 0 0 0 (cfs) S351: 15.03 9.93 -NR- -NR- -NR- -NR- S352: 15.19 9.41 0 0.0 0.0 C10A: -NR- 15.08 -NR- -NR- 7.0 -NR- -NR- L8 Canal PT 15.18 -230 _________________________________________________________________________ Temporary Pumps S351: 9.93 15.03 -NR- -NR--NR--NR--NR--NR--NR- S352: 9.41 15.19 0 -NR--NR--NR--NR- S354: ______ -NR- -NR- -NR--NR--NR--NR- _________________________________________________________________________ Caloosahatchee River (S77, S78, S79) S47B: 14.92 12.43 0.5 0.0 S47D: 12.48 10.81 33 0.0 S77: Spillway and Sector Flow: 14.90 10.92 484 1.7 2.0 2.0 1.7 Flow Due to Lockages+: 8 S77 Below USGS Flow Gage -NR- (TESTING) S78: Spillway and Sector Flow: 10.87 3.35 1270 1.5 1.5 1.5 1.5 Flow Due to Lockages+: 12 S79: Spillway and Sector Flow: 3.04 1.27 2789 2.0 2.0 1.0 1.0 1.0 1.0 1.0 2.0 Flow Due to Lockages+: 7 Percent of flow from S77 17% Chloride (ppm) 49 St. Lucie Canal (S308, S80) S308: Spillway and Sector Flow: 15.01 14.41 1167 3.5 3.5 3.5 0.0 Flow Due to Lockages+: 1 S308 Below USGS Flow Gage 1299 S153: 18.71 14.33 73 0.0 0.0 S80: Spillway and Sector Flow: 14.22 0.93 1410 0.0 0.5 0.5 0.5 0.5 0.5 0.5 Flow Due to Lockages+: 11 Percent of flow from S308 83% Steele Point Top Salinity (mg/ml) 29 Steele Point Bottom Salinity (mg/ml) 26 Speedy Point Top Salinity (mg/ml) 14 Speedy Point Bottom Salinity (mg/ml) 11 + 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: 0.00 0.00 1.09 S193: -NR- 0.00 0.00 -NR- -NR- Okeechobee Field Station: 0.00 0.00 0.70 S135 Pump Station: 0.00 0.00 0.89 S127 Pump Station: 0.00 0.00 0.97 S129 Pump Station: 0.02 0.02 3.04 S131 Pump Station: 0.07 0.08 1.79 S77: -NR- 0.00 2.93 294 2 S78: 0.76 0.76 2.30 11 2 S79: 0.23 0.36 2.02 42 4 S4 Pump Station: -NR- 0.00 0.00 Clewiston Field Station: 0.00 0.10 0.84 S3 Pump Station: 0.01 0.13 1.00 S2 Pump Station: 0.00 0.13 1.04 S308: 0.00 0.00 0.35 358 2 S80: 0.04 0.05 0.53 22 1 Okeechobee Average 0.01 0.04 1.13 (Sites S78, S79 and S80 not included) ______________________________________________________________________________ Okeechobee Lake Elevations 05 OCT 2008 14.97 Difference from 05OCT08 05OCT08 -1 Day = 04 OCT 2008 14.97 0.00 05OCT08 -2 Days = 03 OCT 2008 15.01 0.04 05OCT08 -3 Days = 02 OCT 2008 15.02 0.05 05OCT08 -4 Days = 01 OCT 2008 15.03 0.06 05OCT08 -5 Days = 30 SEP 2008 15.00 0.03 05OCT08 -6 Days = 29 SEP 2008 14.93 -0.04 05OCT08 -7 Days = 28 SEP 2008 14.95 -0.02 05OCT08 -30 Days = 05 SEP 2008 14.95 -0.02 05OCT08 -1 Year = 05 OCT 2007 10.05 -4.92 05OCT08 -2 Year = 05 OCT 2006 13.27 -1.70 ______________________________________________________________________________ Long Term Mean 30day Avearge ET for Lake Alfred (Inches) = 3.78 ______________________________________________________________________________ Lake Okeechobee Net Inflow (LONIN) Average Flow over the previous 14 days | Avg-Daily Flow 05OCT08 Today = 05 OCT 2008 2978 MON | -NR- 05OCT08 -1 Day = 04 OCT 2008 2992 SUN | -NR- 05OCT08 -2 Days = 03 OCT 2008 2988 SAT | -NR- 05OCT08 -3 Days = 02 OCT 2008 2528 FRI | -1507 05OCT08 -4 Days = 01 OCT 2008 2838 THU | 7331 05OCT08 -5 Days = 30 SEP 2008 2431 WED | 15341 05OCT08 -6 Days = 29 SEP 2008 1355 TUE | -1720 05OCT08 -7 Days = 28 SEP 2008 1691 MON | 92 05OCT08 -8 Days = 27 SEP 2008 1891 SUN | 419 05OCT08 -9 Days = 26 SEP 2008 2069 SAT | 335 05OCT08 -10 Days = 25 SEP 2008 2302 FRI | 1990 05OCT08 -11 Days = 24 SEP 2008 2432 THU | -701 05OCT08 -12 Days = 23 SEP 2008 3220 WED | 5495 05OCT08 -13 Days = 22 SEP 2008 3127 TUE | 5682 ______________________________________________________________________________ ______________________________________________________________________________ S65E Average Flow over previous 14 days | Avg-Daily Flow 05OCT08 Today= 05 OCT 2008 764 MON | 306 05OCT08 -1 Day = 04 OCT 2008 895 SUN | 320 05OCT08 -2 Days = 03 OCT 2008 1024 SAT | 358 05OCT08 -3 Days = 02 OCT 2008 1116 FRI | 522 05OCT08 -4 Days = 01 OCT 2008 1283 THU | 421 05OCT08 -5 Days = 30 SEP 2008 1467 WED | 403 05OCT08 -6 Days = 29 SEP 2008 1702 TUE | 464 05OCT08 -7 Days = 28 SEP 2008 1920 MON | 562 05OCT08 -8 Days = 27 SEP 2008 2114 SUN | 589 05OCT08 -9 Days = 26 SEP 2008 2405 SAT | 885 05OCT08 -10 Days = 25 SEP 2008 2682 FRI | 1050 05OCT08 -11 Days = 24 SEP 2008 2948 THU | 1519 05OCT08 -12 Days = 23 SEP 2008 3234 WED | 1580 05OCT08 -13 Days = 22 SEP 2008 3602 TUE | 1713 ______________________________________________________________________________ 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) 05 OCT 2008 523 975 1709 2543 2575 2317 04 OCT 2008 0 9 849 2571 1657 -NR- 03 OCT 2008 0 4 1101 1792 924 -NR- 02 OCT 2008 0 7 766 974 45 -NR- 01 OCT 2008 652 656 1771 3004 476 -NR- 30 SEP 2008 0 0 1450 2323 759 756 29 SEP 2008 1444 3484 1594 3714 1320 1126 28 SEP 2008 4257 7400 4039 6971 847 778 27 SEP 2008 4782 8049 4342 7343 995 773 26 SEP 2008 4205 8037 3973 7724 759 715 25 SEP 2008 4129 7855 4004 7689 125 3 24 SEP 2008 4038 7766 2922 -NR- 2344 3360 23 SEP 2008 4142 8082 4364 -NR- 4781 6727 22 SEP 2008 4660 8621 4702 8482 4623 6552 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) 05 OCT 2008 5544 -NR- -NR- 0 -NR- -456 04 OCT 2008 4568 -NR- -NR- 0 -NR- 306 03 OCT 2008 5567 -NR- 0 0 0 337 02 OCT 2008 5458 -NR- 0 0 0 342 01 OCT 2008 8951 -NR- 0 0 0 275 30 SEP 2008 10991 -NR- 0 0 0 273 29 SEP 2008 6300 -NR- 0 0 0 380 28 SEP 2008 9901 -NR- 0 0 0 409 27 SEP 2008 10385 -NR- 0 0 0 412 26 SEP 2008 9518 -NR- 0 0 0 410 25 SEP 2008 11362 -NR- 0 0 0 397 24 SEP 2008 11058 -NR- 0 0 0 387 23 SEP 2008 11357 -NR- 0 0 0 390 22 SEP 2008 12444 -NR- 0 0 0 399 *** 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 06OCT2008 @ 15:15 ** Preliminary Data - Subject to Revision **