Meteorologist Kayleigh Klautermeier explains Cumulonimbus clouds:
Puffy-popcorn clouds fill the skies in the summer. These clouds can develop quickly into
cumulonimbus clouds producing heavy rain, strong winds, thunder, lightning, and
even hail. They grow vertically as warm-moist air rises, making them the
tallest clouds in the sky.They can grow over 40,000 feet, and some along the equator are as
tall at 75,000 feet.