THE LAKE AND THE LAND
USGS Topographic Survey Map
Click below image for Lake Okahumpka depth and fishing info.
Tussocks on Lake Okahumpka.
Click on image to read report
See the Measured Lake Level at the weir
Image (CLICK IMAGE FOR DATA) shows the Lake Okahumpka water level gauge system at the weir structure. Hourly elevation measurements are sent to SWFWMD for records and review.
Predicted lake level
click to enlarge
Lake Okahumpka water elevation update.
The lake has dropped about 2 1/2 inches this week. SWFWMD has published the lake level, measured monthly, on Oct 21. This was extremely close to the measured level at the weir. So, the excess water enabled elevation equalibrium between the lake and the upper marsh. This datum further confirmed the lake elevation model.
The lake has dropped about 2 1/2 inches this week. SWFWMD has published the lake level, measured monthly, on Oct 21. This was extremely close to the measured level at the weir. So, the excess water enabled elevation equalibrium between the lake and the upper marsh. This datum further confirmed the lake elevation model.
The gazebo area is still 'out of bounds'; don't go there now. The top of the "alligator" sign near the canoes should be now be exposed. I have calibrated the sign and its post details to reveal lake elevation. Close up photos of the sign near the canoes are appreciated - when the area is opened. These will be added to the data base. Thanks.
I have turned off all physical terms in the model. Only evaporation is being accounted. Rain will be added when it happens, and weir flow will be added when the lake starts to flow our through the currently swamped weir. I added a new temporary model term to modify the potental. This empirical term is currently close to minus 1/2" per day. As the lake lowers sufficiently and the berm again becomes a lake container this term will be removed. The berm (road to the weir, etc.) is currently flooded-up to 2 feet deep. This is the main route the extra water took to reach the lake, and over which most of it returns on its way to Hogeye Sink, the drain of our lake, Chitty Chatty and more. The top plot shows the elevation (in feet) before the storm and through now. The bottom plot shows the model, which has been validated as of Ocr 21. It will take quite a while for the water to get back to 'usual' levels.
When this episode is over, I will update the story : "The Rise and Fall of Lake Okahumpka"
Thanks. Dan
The Rise and Fall of lake Okahumpka
Click on image to read report
