The cyanobacteria bloom in western Lake Erie has an approximate area of 10 square miles, which is unchanged from Jul 10. Satellite imagery shows patches of cyanobacteria in North Maumee Bay near Erie, MI in far western Lake Erie. Sandusky Bay has a local, widespread bloom of mixed cyanobacteria. No toxins have been detected in western Lake Erie. Toxins have been detected in Sandusky Bay and can exceed the recreational limit (8 ug/L microcystin) in scums and discolored (green) water. Areas of scum and dense accumulations are a risk for swimming and for pets--Tomlinson and St.Laurent 07/14/2025
The past few days of imagery can be seen at the HAB monitoring site. The Lake Erie Forecast is operated by the National Centers for Coastal Ocean Science. Contact hab@noaa.gov for technical Questions. Last Updated: 2025-07-14 10 PM EST
The cyanobacteria bloom in western Lake Erie has an approximate area of 10 square miles, which is unchanged from Jul 10. Satellite imagery shows patches of cyanobacteria in North Maumee Bay near Erie, MI in far western Lake Erie. Sandusky Bay has a local, widespread bloom of mixed cyanobacteria. No toxins have been detected in western Lake Erie. Toxins have been detected in Sandusky Bay and can exceed the recreational limit (8 ug/L microcystin) in scums and discolored (green) water. Areas of scum and dense accumulations are a risk for swimming and for pets--Tomlinson and St.Laurent 07/14/2025
The past few days of imagery can be seen at the HAB monitoring site. The Lake Erie Forecast is operated by the National Centers for Coastal Ocean Science. Contact hab@noaa.gov for technical Questions. Last Updated: 2025-07-14 10 PM EST