When used in weather forecasts, it means no precipitation and no other extreme conditions of cloudiness, visibility, or wind. The fall speed for large raindrops is up to about 30 feet per second, but much greater for hail. The radioactive debris from a nuclear explosion that falls back to earth either of its own weight or that is brought down in rain and snow.
Radioactive debris can remain in the atmosphere for years.
It is six feet or 1.83 meters. It can also be used in expressing horizontal distance, since 120 fathoms is nearly equal to one-tenth of a nautical mile. The first tornado climatologist and forecaster. His pioneering efforts in the late 1800s were the first attempts at serious national documentation of tornadoes. His accomplishments were remarkable, given the technology and limited understanding of severe storms.