So Many Butterflies Are Migrating Through Denver, They Triggered Weather Radar

Author: Rebekah Black

Believe it or not, but insects and birds trigger weather radar systems all the time. However, on Tuesday, the National Weather Service in Boulder, Colorado got a butterfly surprise.

Originally, Boulder meteorologists thought these images were birds. Not too longer after posting the pic to Twitter did they discover that it’s actually thousands and thousands of butterflies. The painted lady butterflies are currently migrating over Denver.

It’s so pretty!


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