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Hurricane Season 2004 – Not to Be Forgotten

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gomeztimothy
29 diapositives · 315 Views · Jan 04, 2020

Learn about the devastating 2004 Atlantic Hurricane Season, which saw major hurricanes like Charley, Frances, Ivan, and Jeanne affecting Florida, causing significant damage and loss of lives. Explore how hydraulic engineers manage water systems like Lake Okeechobee to mitigate future risks.

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  1. Hurricane Season 2004 – Not to Be Forgotten Ivan Frances Jeanne Charley Jacob Davis, P.E. for Susan B. Sylvester Hydraulic Engineer Water Management Specialist Jacksonville District USACE

  2. The 2004 Atlantic Hurricane Season Alex TS Bonnie Charley Danielle TS Earl Frances TS Gaston TS Hermine Ivan Jeanne Karl Lisa TS Matthew Sub-TS Nicole 13 August 4 September Return 14 September Jeanne 25 September

  3. 4 hit Florida within ~6 weeks, 3 were major hurricanes; 117 lives lost, 1 in 5 homes damaged or destroyed, Est. property damage ~$42B

  4. http://www.ncdc.noaa.gov/img/climate/research/2004/sep/frances-landfall-pg.gifhttp://www.ncdc.noaa.gov/img/climate/research/2004/sep/frances-landfall-pg.gif

  5. Atlantic Hurricane Season (Jun 1 – Nov 30) (1) 8 of past 10 seasons were above average (2) 4 hit Florida within ~6 weeks, 3 were major hurricanes; (117 lives lost, 1 in 5 homes damaged or destroyed, est. property damage ~$42B (msnbc.nsn.com/id/7872376) (3) Alex, Charley, Frances, Ivan, Jeanne, Karl (4) to be updated 31May – likely to be increased due to lack of strong El Nino & northern Atlantic Ocean temperatures ~3oF > normal.

  6. South Florida Water System • 18,000 Square Miles • Highly managed system • 6.5 Million people • Multi-BillionDollar economy focused on tourism, agriculture, and commercial activities

  7. 1 2nd Largest FW Lake in US 143 Miles Earthen Dike (HHD) 5 Spillway Outlets 5 Spillway Inlets 17 Primary Culverts 12 Secondary Culverts 9 Locks 9 Pump Stations

  8. Lake Elevation Ivan Jeanne Charley Frances

  9. Surge Animation Courtesy COMET Program

  10. ~1200 sq mi Inflow From Lake Istokpoga 730 sq mi

  11. HH Dike Completed USACE

  12. Ranges of water levels For Ecological sustainability: 12.5 to 15.0 ft-NGVD For HH Dike Stability: < 18.5 ft-NGVD During 2005 : 18.02 ft-NGVD Top of HH Dike (Elevation 32.3 – 45.6’) 12-15’ variation = healthy littoral and submerged grass beds Deep Pelagic Zone (Elevation < 10’) Littoral Wetland (Elevation 11-15’) Submerged Grass Beds (Elevation 10-12’) Not to Scale

  13. Inflows & Outflows Taylor Crk Kissimmee Nubbin Slough C-41A, C-40 & C-41 S-135 S-308 St Lucie may inflow if Lake is < 14.5 Fisheating Creek (Uncontrolled) & C-5 Lake Okeechobee 80% East & West 20% South C-10 S-77 S-352 Inflowcapacity exceedsoutflowcapacity S-354 S-351 S-2 & S-3 under large rainfall may pump to Lake Lake Okeechobee's drainage basin covers more than 4,600 square miles

  14. Revised Lake Okeechobee Operating Schedule Lake Okeechobee Water Supply / Environmental Regulation Schedule (WSE) Incorporates tributary hydrologic conditions and climate forecasts for operational decisions Utilizes pulse releases to mimic natural rainfall and runoff

  15. Looking west across the Port Mayaca showing immensity of Lake O relative to the outlet size.

  16. Port Mayaca S-308 Lock and Spillway (5600 cfs) 15July2005:1430 Gates at 7.0 ft, 4320, plus Lock open full (1300 cfs) 15JUL05 1430º 7.0 641 ³ 7.0 641 ³ 7.0 641 ³ 7.0 641 ³ 56 1756³ 4320³

  17. Wet Season 2005 Wet Season 2004 So far… + 17.17” + 6.91” ? + 7.50” + 6.86” + 6.57” + 4.26” + 11.61”

  18. Lake Okeechobee Water Levels for Various Historical Years

  19. Hurricane Dennis 9 July 2005

  20. Looking north toward Stuart Inlet. Plume of discharge is impressive and alarming.

  21. Questions? http://fcit.usf.edu/florida/photos/envirmnt/sunset/sunset02.htm