A huge swarm of mayflies has been picked up on a national weather satellite.
Swarm of mayflies are so huge they are spotted from weather satellite- swarm spreading from the Mississippi River across the Wisconsin border. https://t.co/NuTuljlfaj
— Bill Powell (@intelOverwatch) June 12, 2020
The National Weather Service (NWS) in La Cross, Wisconsin, shared a video of the swarm spreading from the Mississippi River across the Wisconsin border recently. Residents in Northeast Ohio were plagued by a swarm of mayflies last year.
