Toxic Algae Threat Looms Over Lake Erie, NOAA Warns

Forecast Predicts Mild to Moderate Bloom, Posing Risks to Health and Economy

A harmful algal bloom is set to plague western Lake Erie this summer, with NOAA forecasting a severity index of 3, potentially ranging from 2 to 4.

Expected to emerge by early July, the bloom of toxin-producing cyanobacteria could contaminate drinking water, close beaches, and disrupt fishing and tourism, costing the region over $70 million annually.

While less severe than past blooms, the microcystin toxin threatens human and wildlife health, prompting heightened monitoring by NOAA and partners like Ohio State University and the Ohio EPA.

The bloom’s toxicity and duration hinge on unpredictable September winds, with NOAA’s advanced tools tracking its movement to aid water treatment operators.

An updated forecast in late July will refine predictions based on nutrient runoff from the Maumee River, helping communities brace for economic and health impacts.