When it comes to cool cloud formations, mammatus clouds rank high. They’re a favorite with KSAT Connect users who sometimes call them bubble clouds or cotton ball clouds. They were actually named for ...

MISSOULA, Mont. — Mammatus clouds made an appearance over western Montana on Wednesday, and our viewers submitted great photos to us! The big question now is what are mammatus clouds? Mammatus are ...

Scattered showers and thunderstorms passing through Texas on Friday, August 23, created a striking scene. Bulbous mammatus clouds, like celestial cotton, blushed with an orange hue as the setting sun ...

Mammatus clouds form under the anvil of cumulonimbus clouds as air descends out of the anvil either in advance of or after a thunderstorm has gone by. In this case on Tuesday October 23, 2018, the ...

BRYAN, Texas (KBTX) - Just over a week ago, on June 20, 2025, storm activity rolled across the Brazos Valley, leaving behind pouch-shaped clouds that had folks all over the area looking up at the sky.

Mammatus clouds offer a dazzling sight in the sky and usually cause quite the photography frenzy, as evidenced by our inboxes here at the station whenever they make an appearance. They are fairly ...

Another round of storms battered some Ohio communities Wednesday evening with heavy but brief rainfalls, 60 mph gusts and a confirmed tornado while producing picturesque bubble-like clouds at sunset.

NORFOLK, Va. — Did you look at the sky on Monday as the severe storms exited the region? If you did, you might have been treated to a really cool and not-too-common sight in our area: mammatus clouds!

Thunderstorms form due to rapidly rising air. At the top of the storm, the air diverges, which is why you get that anvil shape in some of the more intense cells. Mature stage of a thunderstorm Within ...

Mammatus clouds are some of the most visually striking and unusual cloud formations in the sky. They appear as rounded, pouchlike lobes that hang down from the base of a cloud, usually under ...