July 31, 2026

Water Conditions Tracker

Lake Okeechobee Levels & Caloosahatchee Flow Impacts

On 7/29/26 Lake Okeechobee was at 10.83 feet, decreasing by 0.10 feet in the past week. The weekly average flow at S-79 was 442 cfs (cubic feet per second) while flow from the Lake at S-77 was an average of 267 cfs. The 14-day average flow at S-77 was 228 cfs. The 14-day average flow at S-79 was 410 cfs and has been below the optimum flow envelope (<750 cfs; RECOVER 2020) for 99 consecutive days and for 262 of the past 277 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): 1.10" Ortona (S-78): 3.62" Julian Keen Jr. (S-77): 2.51"

Red Tide

On 7/24/26, the red tide organism, Karenia brevis, was observed at background concentrations in one sample collected offshore of Southwest Florida, in Sarasota County.

Blue-Green Algae

On 7/27/26, sampling for cyanobacteria by the Lee County Environmental Lab reported no visible cyanobacteria across all sites.

Wildlife Impacts

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

Lake Okeechobee Cyanobacteria

On 7/27/26 satellite imagery of Lake Okeechobee showed the presence of an algal bloom covering 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

Click here to subscribe to the Weekly Water Conditions Tracker

Click here to subscribe to Connecting You to SCCF and other SCCF mailing lists.