Beware of dangerous algae on North Dakota lakes, officials say
Jul 17, 2026 | 10:47 am ET
Description
An algae bloom shown along the shore of Devils Lake in North Dakota in 2026. (Photo courtesy of Department of Environmental Quality)
Hot weather is making potentially dangerous algae blooms more likely in North Dakota, with state officials adding Devils Lake to its watch list.
The North Dakota Department of Environmental Quality on Thursday issued algae advisories for Devils Lake in Ramsey and Benson counties and Lake Brekken in McLean County.
The agency had previously issued warnings for Bowman-Haley Dam in Bowman County, South Golden Lake in Steele County and Warsing Dam in Eddy County.
Algal blooms can develop quickly during warm, sunny weather, according to the agency. Water suspected of containing blue-green algae should be avoided.
A bloom can often look like spilled green paint, green puff balls, grass clippings, or green or turquoise scum along the shoreline, the agency said.
Some blooms produce cyanotoxins, which may affect people, pets and livestock if the water is swallowed or contacted. If there is contact, the person or animal should be rinsed with clean water.
People can check current water conditions at tinyurl.com/WMP-HABS.
To report suspected blooms, call 701-328-5210, go to tinyurl.com/WMP-HABS or email [email protected].
Bismarck, ND
