Both lightening and thunder occur at the same time, but the sound of thunder is heard after lightening is seen because light travels faster than sound. While lightening may be seen for miles, thunder is seldom heard beyond a 10-mile radius.Know More
When lightning travels from clouds to the ground, it opens a little hole, or channel, in the air. Once the lightening disappears, the hole collapses and reverts back inwards. The resulting sound is thunder. Light travels at a rate of 186,282 miles per second, allowing the human eye to see a flash of lightning immediately as it happens. Sounds travels at the much slower rate of 1,087 feet, or one-fifth of a mile per second.
The rate at which the sound waves travel varies, depending on the temperature of the air and the wind's speed. Thunder appears to rumble or roll at times due to zigzag lines, or forks, that occur when lightning that strikes is not visible. These forks can branch out over several miles. These branches of lightning are further from the ground; therefore, they produce sounds of thunder, which take longer to be heard than the large bolt of lightning that originally produced the branched-out forks.Learn More
A tornado, a localized and very destructive windstorm that occurs over land, is also referred to as a cyclone, twister or funnel. These funnel-shaped appendages stretch from a storm cloud to the ground and consist of wind rotating very fast in a circular motion.Full Answer >
Tornadoes tend to occur during late spring to early summer in the United States. During this time of year, conditions are ripe for producing tornadoes across an area called Tornado Alley.Full Answer >
Countries all over the world are affected by hurricanes and cyclones, but the National Weather Service states those most affected include China, The Philippines, Japan, Mexico, the United States, Australia, Taiwan, Vietnam, Madagascar and Cuba. In terms of landfall, the United States has had 268 known hits in history. Since 1970, China has had the most typhoon hits.Full Answer >
The main features of a flood include destruction of property, soil erosion, death of wild animals, uprooting of certain plants and water contamination by toxins. Floods occur when excessive rain falls in a given area, when river banks burst, when dams are damaged and when disasters like tsunamis occur.Full Answer >