Mid-level clouds form between 6,500 feet and 23,000 feet. High-level clouds form above 16,500 feet. Note that there is some general overlap in the heights of mid and high-level clouds.

Calling all cloud gazers -- NASA needs your help. Until April 15, you can participate in the Citizen Science Cloud Observation Challenge.

Identify clouds Next, the app’s Cloud Wizard will help you specify the amount of cloud cover (some clouds, fog, or clear) and what percentage of the sky is covered.

News Published: 04 February 1897 The Photographic Observation of Clouds Nature 55, 322–325 (1897) Cite this article ...

Two University of Wyoming researchers contributed to a paper that demonstrated, for the first time, direct observation of cloud seeding using radar and gauges to quantify the snowfall. Traditionally, ...