NOAA and NWS-linked Lake Erie resources provide current environmental information and harmful-algal-bloom forecast access for the western basin. Products can describe bloom location and expected movement.
A forecast is not a toxin test at a specific dock or swimming spot. Wind can concentrate surface scum quickly, and local conditions can differ from a regional image.
Use current advisories and direct observations, avoid visible bloom material, and follow public-health guidance for people and animals.