The Northwestern Health Unit (NWHU) is warning of blue-green algae blooms in the Kenora area. Blooms have been reported in the northern sections of Lake of the Woods, as well as in the Winnipeg River and Muriel Lake, the NWHU said. The Muriel Lake bloom is being tested, but the NWHU said water samples will not be taken from Lake of the Woods or the Winnipeg River at this time.