April 8 (UPI) -- A Boston-area man taking a walk near Castle Island captured video when he spotted a pair of unusual vortexes off the coast that may have been waterspouts.

Walpole resident Michael Bianculli said he was walking around Pleasure Bay on Tuesday morning when he spotted the phenomenon near the DCR Murphy Memorial Rink.

His video shows the twin vortexes traveling across the water toward him.

"That's kind of wild. Is that a waterspout?" Bianculli asks in the video.

Meteorologists said the vortexes would have to reach the base of the clouds to be classified as true waterspouts.