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 ...

Is your weather app predicting clouds? No need to pull out that umbrella just yet. Not all cloudy days are the same, or, not all clouds are the same to be exact. There are a number of distinguishing ...

Add Yahoo as a preferred source to see more of our stories on Google. This week's question comes from Regina, who asks about one of the basic elements of our weather, "Why do clouds form?" ...

Deep in the Amazon, high above the rainforest, clouds sprout from the thick atmosphere, their condensed water vapor billowing into the blue sky beyond. Underneath this, on the ground but acutely aware ...

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 ...