The U.S. Government is closed. This site will not be updated; however NOAA websites and social media channels necessary to protect lives and property will be maintained. To learn more, visit www.commerce.gov. For the latest forecast and critical weather information, visit www.weather.gov. 

The U.S. government is closed. This site will not be updated; however, NOAA websites and social media channels necessary to protect lives and property will be maintained. To learn more, visit commerce.gov. 

For the latest forecasts and critical weather information, visit weather.gov.

2026 Lake Erie Harmful Algal Bloom Early Season Projection predicts that Lake Erie will experience a moderate bloom this summer

Bar chart of predicted bloom severity for 2026 as compared to previous years, dating back to 2000.NOAA’s first 2026 Lake Erie Harmful Algal Bloom Early Season Projection predicts that Lake Erie will experience a moderate bloom this summer, with models indicating a severity between 2 and 5.5.