Altocumulus clouds act as a visual cue for a changing weather pattern. DALLAS — Why do altocumulus clouds appear ahead of a strong cold front on warm days?

These clouds are called altocumulus floccus clouds. The tentacle-looking streaks are ice crystals falling from the cloud but evaporate before they reach the ground, known as virga.

Rob Carlmark captured this image of altocumulus clouds filling the sky over Sacramento on Tuesday. While beautiful at the time, these clouds often foretell rainy days ahead, and in this case were ...

Altocumulus clouds are "mid-level clouds composed primarily of water droplets," according to the National Oceanic and Atmospheric Administration (NOAA). These groups of fleecy clouds share some ...

This photograph, however, didn't have anything to do with that enormous conflagration. This image images to show Altocumulus clouds taken from an airplane at sunset.

This incredible cloud formed over Mount Etna earlier this week, spreading out across the Sicilian volcano like a velvety white pancake. The cloud is altocumulus standing lenticularis, Latin for ...

Now this is a cloud. Altocumulus floccus with virga also known as 'jellyticularus'. OK, we made up that last bit, but it really is sometimes known as a jellyfish cloud! Altocumulus is a middle ...

News Weathercatch: When a cloud mesmerized the Inland Northwest Thu., Feb. 16, 2023 National Weather Service forecaster Jon Fox captured an unusual altocumulus cloud formation in 2015 to the east ...