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 ...

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 ...

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 ...

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 ...