Blue jets emerge from the top of the thundercloud, extending up in narrow cones fanning out and disappearing at heights of miles. Blue jets last just a fraction of a second. Elves are rapidly expanding disk-shaped glowing regions that can be up to miles in diameter. They last less than a thousandth of a second, and occur above areas of active CG lightning. Scientists believe elves result when an energetic electromagnetic pulse extends up into the ionosphere.
Anvil Crawlers are tree-like, horizontally-moving IC lightning discharges which tend to appear along the underside of thunderstorm anvils. They can be seen by the human eye due to their slower speed relative to other lightning! Anvil crawlers are often very high-altitude events, and typically result in soft, rolling thunder due to their great distance from the observer.
Anvil crawlers can either occur independently completely within the cloud, or in connection with a cloud-to-ground discharge. It typically originates in the highest regions of a cumulonimbus cloud, travelling horizontally a good distance away from the thunderstorm before making a vertical descent to earth.
Bead Lightning is the name given to the decaying stage of a lightning channel which cools after a return stroke and its luminosity breaks up into segments. It describes a stage of a normal lightning discharge rather than a type of lightning. Ribbon Lightning occurs in thunderstorms with high cross winds and many return strokes The wind blows each successive return stroke sideways into the previous return stroke causing a ribbon effect Camera movement during the capture of a lightning photograph can also result in the same effect.
Staccato lightning is a CG lightning strike which is a short-duration stroke that often appears as a single very bright flash with considerable branching. And finally, what is ball lightning?! Want to track live lightning strikes across the world? Halloween can be a scary time of year when it comes to the weather. Well, not really, but it's the same idea. Your rubber-soled shoes picked up stray electrons from the carpet.
Those electrons built up on your shoes giving them a static charge. Static means not moving. Static charges are always "looking" for the first opportunity to "escape," or discharge. Your contact with a metal doorknob—or car handle or anything that conducts electricity—presents that opportunity and the excess electrons jump at the chance.
So, do thunderclouds have rubber shoes? Not exactly, but there is a lot of shuffling going on inside the cloud. Lightning begins as static charges in a rain cloud.
Winds inside the cloud are very turbulent. However, it is possible that you might see lightning and not hear the thunder because it was too far away. Is lightning always produced by a thunderstorm?
Thunderstorms always have lightning thunder is caused by lightning, and you can't have a thunderstorm without thunder! What causes thunder? Thunder is caused by lightning. The bright light of the lightning flash caused by the return stroke mentioned above represents a great deal of energy. The top of the cloud becomes positively charged while the base of the cloud becomes negatively charged. Once the negative charge at the bottom of the cloud gets large enough, a flow of negative charge called a stepped leader rushes toward the Earth.
The positive charges at the ground are attracted to the stepped leader, so positive charge flows upward from the ground. When the stepped leader and the positive charge meet, a strong electric current carries positive charge up into the cloud.
This electric current is known as the return stroke. We see it as the bright flash of a lightning bolt.
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