Kissimmee Watershed Environmental Conditions – 10/20/09:

Upper Kissimmee Basin

·         Over the past week the Kissimmee Basin received less than 0.1 inch of rainfall.  For the month so far, rainfall was 39% and 17% of normal in the Uppper and Lower Basins, respectively.  Total rainfall in the last 30 days was 2.5 inches in the Upper Basin (75% of normal) and 1.3 inches in the Lower Basin (40% of normal) (SFWMD Daily Rainfall Report 10/26/2009).

Lakes in the Kissimmee Chain of Lakes are within 0.9 ft of their regulation schedules (USACE Kissimmee River Report 10/26/09 and/or SFWMD OASyS DualTrend or LOGGERNET).

·         Lakes Hart and Mary Jane are 0.7 ft below regulation schedule.

·         Lakes in the Alligator Chain are 0.8 ft below regulation schedule.

·         Lake Gentry is 0.2 ft below regulation schedule.

·         East Lake Tohopekaliga is 0.6 ft below regulation schedule.

·         Lake Tohopekaliga is 0.2 ft below regulation schedule; discharge at S61 is 0 cfs.

·         Lakes Hatchineha and Cypress are 0.8 ft below regulation schedule.

·         Lake Kissimmee is ­­­­­approximately 0.9 ft below regulation schedule.  

2.       Discharge at Lake Kissimmee (S65) is 190 cfs.

 

Lower Kissimmee Basin (SFWMD OASyS Dual Trend or LOGGERNET 10/27/2009)

·         Discharge at S65-A is 209 cfs.

·         Discharge at S65-C is 131 cfs with headwater stage at 35.7 ft.

·         Discharge at S65-D is 112 cfs.

·         Discharge to Lake Okeechobee at S65-E is 153 cfs.

·         Water depths continue to recede on the floodplain in the Kissimmee River Phase I restoration area, averaging 0.8 ft  (SFWDAT 10/25/2009). SFWDAT depth and difference maps are attached.

·         River channel dissolved oxygen (DO) concentrations in the Phase I area averaged 5.4 mg/L over the past week, well above the level of concern.

·         The Vegetation Management Division will be treating water lettuce and water hyacinth this week in river channels in Pools D and E.


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