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A heat wave is hitting Wisconsin. Here’s what to know

Limnology experts will pay especially close attention to algae growth in Madison’s lakes this week, according to Emily Stanley with the UW-Madison Center for Limnology. Excessive heat and calm water are both good ingredients for algae blooms, she said.

Stanley is expecting algae and weeds to get “slightly greener” but isn’t anticipating anything extreme. The lack of rain has slowed the growth of algae blooms this summer, so a few hot days shouldn’t make much of a difference.