The unprecedented move by the U.
Severe Weather Institute Research Lab. A tornado, also known as a twister, is a violent spiral-shaped storm with a rapidly rotating column of air rising upward forming a vortex.
The vortex has relatively low pressure at the center and is shaped like a funnel.
Tornadoes that occur over oceans are called waterspouts, they are usually weaker than tornadoes. The condition for a severe thunderstorm and for a tornado are basically same. Most violent tornadoes are formed from powerful thunderstorms known as supercells. Some sign of a coming tornado are a light rain, then heavier rain and rain mixed with hail.
Tornadoes usually occur during the spring and early summer. Tornadoes usually lasts only a few minutes, but they are very intense. Each year, the United States ranks number one in tornado incidence with Australia coming in second.
Very often, the most devastating ones occur in Bangladesh. The damage from a tornado is determined by the speed of its winds.
Tetsuya Theodore Fujita, a weather scientist, developed a scale known as the Fujita Tornado Intensity Scale to determine the damage based on wind speed see table below. Fujita Tornado Intensity Scale.Television journalist Tom Brokaw wrote The Greatest Generation two decades ago to pay tribute to those who had to come of age during World War II, a time “buffeted by winds of change so fierce that they threatened not just America but the very future of the planet.” If anyone understood the.
The winds of change are blowing at gale force in the Carolina Hurricanes’ locker room. Sunday saw Cam Ward blown out of the only team he has ever played for, landing in the midwest with the.
Wind is the flow of gases on a large scale. On the surface of the Earth, wind consists of the bulk movement of air. In outer space, solar wind is the movement of gases or charged particles from the Sun through space, while planetary wind is the outgassing of light chemical elements from a planet's atmosphere into space.
Winds are commonly classified by their spatial scale, their speed, the. U.S. Files Complaints With WTO Against Trading Partners.
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Those have helped it. (3) Winds associated with currents of the general atmospheric circulation but lacking a descending component, though topographically intensified in a particular region—for example, the afganets and Ursat’evskaia winds of Middle Asia, the canyon wind of North America, and the .