WINNEBAGO CO., Wis. (WBAY) - Due to the recent rain, water levels are high for this early in the summer. Add in the heat, and we’re already seeing algae blooms. Usually, they aren’t seen until ...

But before you go, Winnebago County health officials say it’s important to check the water for signs of blue-green algae. Blue-green algae blooms are aquatic organisms that can make you or your pets ...

Algae blooms can be a nuisance, causing problems for organisms that depend on access to light, which blooms block, and oxygen, which blooms deplete. ... In Winnebago County, ...

As sturgeon spearing season kicks off Saturday, conditions on Lake Winnebago are a mixed bag. While ice is thicker than last year, a lack of snow has led to poor water clarity, making it harder ...

Lake Winnebago has lasted the full 16-day ... a January that sees as little snow as the area did in 2025 often results in sunlight penetrating the water and causing algal blooms in Lake Winnebago.

While some algae contain toxins that are harmful to people, animals and the environment, not all algal blooms are toxic. A harmful algal bloom occurs in bodies of freshwater when Cyanobacteria ...