Several lakes around the Seattle area have reported algae blooms, which can be dangerous for swimmers.

Here's the list of August algae blooms, broken down by county:

King County:
Lake Marcel
Joe's Creek
Hicks Lake

Pierce County:
Tapps Lake
Wapato Lake

Snohomish County:
Lake Armstrong

Island County:
Admirals Cove Lake

Douglas County:
Rufus Woods Lake

Whatcom County:
Wiser Lake

Toxic algae can look like green paint floating on the water from a distance, and tiny dots close-up. If you see it on any lake or river, you should keep children and pets out of the water, and make sure that you don't accidentally get it in your mouth or on your skin. It can make you very sick, and can even kill pets if you let them drink it.