Altocumulus clouds act as a visual cue for a changing weather pattern. These are the types of clouds that appear ahead of a strong cold front and are a common sight. They indicate the presence of a ...

A rare cloud formations seen over Anacortes and Ferndale caused a stir Monday afternoon. At least two punch-hole clouds appeared and made an eerie site. The weird formation usually happens when a ...

Ryan True-Richardson took this photo in the Valley of a large lenticular cloud that formed in the late afternoon ...

Photo taken on Oct. 12, 2012 shows altocumulus translucidus clouds in the sky of Suzhou, east China's Jiangsu Province. Altocumulus translucidus clouds scenery appeared in Suzhou on Friday as a cold ...

Over the Florida Keys, these celestial wonders were noticed by NASA and fishermen alike. The sky formations are known as "cavum clouds" or "fallstreak holes." Here we explore unique facts about these ...

The rain has returned to the Pacific Northwest as an area of low pressure moves into the region. Landslide closes Hwy 229; Lincoln County issues evacuation notices for residents The Lincoln County ...

At medium altitudes ranging from 6,000 feet to 20,000 feet above mean sea level, water droplets in altocumulus clouds can remain in a supercooled liquid phase that cannot be reasonably resolved in ...

On the morning of Feb. 18, 2015, a cluster of “punch hole clouds” wafted overhead. Scientifically known as cavum clouds, they are distinguished by giant circular or oblong holes that appear punched ...

Did you notice the clouds around lunch today over Houston? These, "mackerel skies" (because they can resemble scales of a fish) or "cotton ball" (as many children refer to them) are clouds caused from ...