Some menacing mammatus clouds, hanging down from thunderclouds, swept over the city of Sayre, Oklahoma on May 11, 2018. Beautiful but scary!
Now look at this video:
— Randy (@nicrock90) 12 mai 2018
Very cool indeed!
WOW! That must have been a powerful thunderstorm! Just in case you missed it, dangerous thunderstorms and winds are rolling across the States… So be ready for some wild weather!