A glance at weather radar in the Midwest on Tuesday might have had
you reaching for the umbrella. The only problem? It was a clear, sunny day.

The likely culprit couldn’t have been rain. It probably wasn’t even
meteorological. There’s a strong chance that these signatures came from
dragonflies.

Social media video emerged showing swarms of dragonflies descending across the
eastern third of the nation. From Ohio and Indiana to New Jersey, Maryland and
Virginia, witnesses have reported the migrating dragonflies. And Doppler weather
radar probably has detected the bugs, as well.