Ask the meteorologist: What are those interesting clouds in the sky Tuesday?

We've seen a mix of shelf clouds and undulatus asperatus clouds Tuesday morning. How do they form?
Mike Olbinski on MSN

Undulatus asperatus in motion: Rare sky phenomenon timelapse

This timelapse captures the rare undulatus asperatus cloud formation moving across the sky in dramatic, wave-like patterns.
WMUR

Rare undulatus asperatus clouds seen in parts of New Hampshire Sunday

WMUR. DOT COM. TURNING TO OUR WEATHER NOW, TAKE A LOOK AT THIS. LAURA SENT IN THESE PHOTOS TO OUR U LOCAL FACEBOOK PAGE TODAY. JUST TAKE A LOOK AT THOSE CLOUDS. AND JACQUI, I JUST LEARNED THAT THE ...
Yahoo

Rare cloud formation spotted in parts of NH Sunday

Add Yahoo as a preferred source to see more of our stories on Google. The cloud formation, known as undulatus asperatus, was first proposed in 2009. Calls to invoke the 25th Amendment grow after Trump ...
WJHL-TV

GALLERY: Rare cloud formation seen in the Tri-Cities on Sunday

TRI-CITIES, Tenn. (WJHL) — News Channel 11 viewers captured stunning, rare clouds in the Tri-Cities Sunday. The formations are called “undulatus asperatus,” which loosely translates to roughened or ...
KCCI Des Moines

What were those scary clouds over Iowa Thursday evening?

Quite a few Iowans spotted ominous, swirling cloud formations Thursday evening as storms moved through the state.These dramatic clouds are called "asperitas."Asperitas are well-defined, undulating ...