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.