The cloud stretched across about 60 miles (100 kilometers) at an altitude of around 5,000 feet (1,500 meters). Enlarge Image A closer look at the peculiar cloud shows its cartoonlike nature.

IN his “Instructions for Observing Clouds” (London, 1888, p. 12), Hon. Ralph Abercromby defines stratus as “a thin uniform layer of cloud at a very low level,” and as an illustration ...

Stratus clouds typically form in the lower atmosphere, while cirrus clouds develop at higher altitudes. Posted 8:47 p.m. Apr 24 ...