DULUTH, MN -- A state agency is warning to be on the lookout for algae blooms on Northland lakes and rivers.
The algae can be harmful to people, and potentially deadly for our four-legged friends.
Blooms will typically form in hot, calm weather.
The water may look like pea soup, or you'll notice patches of floating scum.
Lucie Amundsen with the Minnesota Pollution Control Agency encourages you to be on the lookout for the algae and report it.
"If you take a stick and dip it in and its like paint on that stick, there is a good chance that's blue-green algae and you definitely want to keep your pets out of that. Always just be on the lookout, before you jump into that pond take a look at it, " Said Amundsen.
Dogs exposed to the algae can experience symptoms such as vomiting, diarrhea, rash or difficulty breathing, and should seek veterinary care immediately.
More details on Algae blooms can be found here.