This NOAA map shows the worst of Lake Erie’s 2018 harmful algal bloom. (NOAA)

Despite a forecast for a harmful algal bloom more severe than in 2016, the annual plague of Lake Erie remained relatively small this year.

The bloom wasn’t smaller because of decreased phosphorus and nitrogen in the lake. So as the bloom season ends, scientists are studying the lake dynamics — from wind direction to wave height — that might have slowed the spread of the bloom.

See the full story on’s RocktheLake page.