Clouds need two essential ingredients to form, and both must be present simultaneously for the process to begin. There are two ingredients needed for clouds to form: water and nuclei. The first ...

Answer: Clouds form when sufficiently moist air is cooled to the dew point temperature of the air or below, so that either liquid water droplets form on cloud condensation nuclei, or in the case of ...

Have you ever looked up at the clouds in the sky and wondered how they form? Understanding cloud formation is really important for studying weather patterns and making accurate forecasts. Those clouds ...

SEATTLE — Even a clear sky contains layers of wet and dry air, that is, layers with different humidities. You can’t see these layers unless the humidity is high enough for the moisture in the layer to ...

This week's question comes from Regina, who asks about one of the basic elements of our weather, "Why do clouds form?" Meteorologist Rob Shackelford: This might sound like a weird analogy, but I need ...

High above the familiar cotton wool of weather systems, a stranger kind of cloud is quietly rewriting what we think we know ...

Airplanes form invisible ice clouds that trap heat. Study explains why contrails matter and how aviation warming has been ...

With Michigan's changeable weather, residents get to see a lot of different cloud formations — fluffy cumulus, wispy cirrus and dark, threatening cumulonimbus — and recognizing what weather each type ...