August 7, 2026

Water Conditions Tracker

Lake Okeechobee Levels & Caloosahatchee Flow Impacts

On 8/5/26 Lake Okeechobee was at 10.89 feet, increasing by 0.06 feet in the past week. The weekly average flow at S-79 was 754 cfs (cubic feet per second) while flow from the Lake at S-77 was an average of 122 cfs. The 14-day average flow at S-77 was 206 cfs. The 14-day average flow at S-79 was 591 cfs and has been below the optimum flow envelope (<750 cfs; RECOVER 2020) for 106 consecutive days and for 269 of the past 284 days.

For more information on Lake Okeechobee and estuary conditions go to the latest Caloosahatchee Conditions Report.

Water Surface Temperature

Weekly Rainfall Totals

WP Franklin (S-79): 1.79" Ortona (S-78): 3.40" Julian Keen Jr. (S-77): 0.93"

Red Tide

 On 7/31/26, the red tide organism, Karenia brevis, was observed in 1 sample from Southwest Florida from Charlotte County and 5 samples from Florida’s East coast.

Blue-Green Algae

On 8/3/26, sampling for cyanobacteria by the Lee County Environmental Lab reported Dolichospermum and a dinoflagellate bloom as present at the Alva Boat Ramp, appearing as slight accumulation on the ramp and Dolichospermum and Microcystis as present at the Davis Boat Ramp, appearing as several light streaks.

Wildlife Impacts

In the past week, the CROW wildlife hospital on Sanibel admitted 0 patients for suspected red tide/toxicosis 

Lake Okeechobee Cyanobacteria

On 7/29/26 satellite imagery of Lake Okeechobee showed the presence of an algal bloom but cloud cover and winds prevented an area from being determined. The previous area of the bloom measured on 7/27/26 covered about 320 square miles or 69% of open water in the lake.

*Calculation based on apx 467 sq mi of open water area, while total area of lake spans apx 730 sq mi.

Become a Citizen Scientist and Get the Algae Reporting App Today!

SCCF wants to know when and where all types of algae sightings occur to monitor conditions around the islands and to investigate algae bloom occurrence with patterns in seasonal weather changes and Lake Okeechobee water management practices.

Click on and bookmark this link to report an algal bloom sighting.

To learn more about our current water conditions, click on the following links:

Water Quality Dashboard

Water Quality FAQ

Find answers to some of our most commonly asked questions regarding water quality and more.

Water Conditions Update Archive

Caloosahatchee Conditions Report

A collaborative, weekly analysis, including recommendations for water managers regarding Lake Okeechobee flows.

RECON

SCCF's River, Estuary and Coastal Observing Network (RECON) is a network of water quality sensors deployed throughout the Caloosahatchee River and Estuary to provide real-time, water quality data to scientists, policy makers, and the general public.

Caloosahatchee River Virtual Tour



Red Tide Resources

NOAA HAB Monitoring System - Lake Okeechobee

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