Hourly Weather - Thabazimbi, South Africa

Algae blooms, like this one in Florida last year, can be toxic to humans and pets. (Joe Raedle/Getty Images) At a Glance The affected area stretches east from Louisville along the Indiana and Ohio borders.Blue-green algae can be toxic to humans and pets.Increasing frequency of toxic blooms has been linked to climate change. A public health advisory has been issued for a section of the Ohio River after several blooms of blue-green algae were detected. Both the Kentucky Division of...