One of the most awe-inspiring aspects of the storm was the appearance of mammatus clouds. These pouch-like formations hung ominously from the sky, resembling a series of upside-down bubbles.

Formed by cold air sinking down, mammatus clouds are usually seen when there ... Residents describe a 'really rough night', as tornadoes claim at least 12 lives and leave destruction throughout ...

These clouds are often associated with strong wind gusts and heavy rain, but can occasionally produce a brief tornado. Mammatus clouds are some of the most photographed clouds because of their odd ...

TUOLUMNE COUNTY – A volatile day of stormy weather in the Central Valley saw two funnel cloud sightings along with multiple Tornado Warnings across several counties. The funnel clouds were ...

Unusual mammatus clouds were spotted on Wednesday morning in parts of the United Kingdom. The name mammatus comes from the Latin mamma which means 'udder' or 'breast'. The bulging cloud was made ...