what cloud means lightning
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- Lightning is a bright flash of electricity produced by a thunderstorm. All thunderstorms produce lightning and are very dangerous. If you hear the sound of thunder, then you are in danger from lightning. Lightning kills and injures more people each year than hurricanes or tornadoes; between 75 to 100 people.
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lightning Lightning definition, a brilliant electric spark discharge in the atmosphere, occurring within a thundercloud, between clouds, or between a cloud and the ground. See more.
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Lightning Lightning starts with an invisible stream called a stepped leader comes out of the cloud. This moves like a step down toward the ground. When the stepped leader is about 300 ft from the ground, lightning shoots up from the ground to meet it in what is called the return stroke.
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Severe Weather Glossary The discharge may occur within or between clouds, between the cloud and air, between a cloud and the ground or between the ground and a cloud. Lightning Channel - The irregular path through the air along which a lightning discharge occurs.
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Definitions &Translations Here are all the possible meanings and translations of the word lightning. Princeton's WordNet(5.00 / 1 vote)Rate this definition: lightning(noun) abrupt electric discharge from cloud to cloud or from cloud to earth accompanied by the emission of light. lightning(noun) the flash of light that accompanies an electric discharge in the atmosphere (or something resembling such a flash); can scintillate for a second or more.
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Understanding Lightning Science What is lightning? Lightning is a giant spark of electricity in the atmosphere between clouds, the air, or the ground. In the early stages of development, air acts as an insulator between the positive and negative charges in the cloud and between the cloud and the ground.
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What causes lightning? Lightning is an electric current. To make this electric current, first you need a cloud. When the ground is hot, it heats the air above it. This warm air rises. As the air rises, water vapour cools and forms a cloud.
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- a brilliant electric spark discharge in the atmosphere, occurring within a thundercloud, between clouds, or between a cloud and the ground. verb (used without object), lightninged, lightning. 2. to emit a flash or flashes of lightning (often used impersonally with it as subject):
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What causes lightning? When the positive and negative charges grow large enough, a giant spark - lightning - occurs between the two charges within the cloud. This is like a static electricity sparks you see, but much bigger. Most lightning happens inside a cloud, but sometimes it happens between the cloud and the ground.
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lightning 2. lightning-the flash of light that accompanies an electric discharge in the atmosphere (or something resembling such a flash); can scintillate for a second or more. flash-a sudden intense burst of radiant energy.
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15 Incredible Cloud Formations Photograph by NASA Satellite Image. A wave cloud is a cloud form created by atmospheric internal waves. The atmospheric internal waves that form wave clouds are created as stable air flows over a raised land feature such as a mountain range, and can form either directly above or in the lee of the feature. As an air mass travels through the wave, it undergoes repeated uplift and descent.
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Weather Library > Lightning Types and Classifications Referring to a discharge (or a portion of a discharge) jumping from a cloud into clear air. Technically speaking, all cloud-to-ground lightning strikes contain 'cloud-to-air' components in the many branches that extend away from the main channel and terminate abruptly in mid-air.
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lightning 1. 1  a brilliant electric spark discharge in the atmosphere, occurring within a thundercloud, between clouds, or between a cloud and the ground. 2  to emit a flash or flashes of lightning (often used impersonally with it as subject): 3  of, relating to, or resembling lightning, especially in regard to speed of movement:
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- Finally, the two leaders connect and create a channel from the cloud to the ground. The charges in the leaders equalize each other at rapid speeds heating the air and creating the light we see as the lightning flash (Lightning) . The actual flash of lightning actually is the return stroke up to the cloud.The flash we see goes from ground to cloud. This is because a connection is established between the negative charges in the cloud and the positive charges on the ground.Once the connection is established, electrons flow a lot faster.ightning can be generated from inside one cloud, cloud to cloud, or cloud to ground. The most dangerous of these is the cloud to ground lightning. Figure 1 shown below is a picture of cloud to ground lightning. This is the most common lightning flash we see (Balasubramaniam).
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World Lightning Map Enlarge. Lightning is a sudden high-voltage discharge of electricity that occurs within a cloud, between clouds, or between a cloud and the ground. Globally, there are about 40 to 50 flashes of lightning every second or nearly 1.4 billion flashes per year. These electrical discharges are powerful and deadly.
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Definitions &Translations Lightning is a massive electrostatic discharge caused by unbalanced electric chargesin the atmosphere, and resulting in a strike, from a cloud to itself, a cloud to a cloud or … a cloud to ground, and accompanied by the loud sound of thunder. 3 people found this useful.
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- Lightning is the movement of electrons (electricity) from cloud to cloud or from cloud to ground. As it is an actual movement of charges, the charges, those electrons, could b … e thought of as matter. In this case, because lightning is static electricity, the electrons are the matter in the electricity. (Be careful not to confuse this with regular electricity, which is the forced movement of electrons already in a conductor by the application of voltage.). 12 people found this useful.
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cloud cloud over, cloud up, overcloud - become covered with clouds; The sky clouded over 2. cloud - make less visible or unclear; The stars are obscured by the clouds; the big elm tree obscures our view of the valley becloud, befog, fog, haze over, obnubilate, obscure, mist conceal, hide - prevent from being seen or discovered; Muslim women hide their faces; hide the money
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cloud A state or cause of sadness, worry, or anger: At the bad news a cloud fell over the celebration. 5. A state or cause of confusion or misunderstanding: writing made difficult by a cloud of jargon. 6. A state or cause of suspicion or disgrace: A cloud of mistrust lingers among the signers of the treaty.
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Lightning: FAQ Once enough charge has been separated in a growing storm, a lightning flash can occur. These normally travel within or between clouds (abbreviated CC) or from cloud to ground (CG). Most storms produce more CC than CG flashes--about six times as many in tropical storms and two times as many in midlatitudes.
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Why does lightning strike from the ground-up? The answer is both. Cloud-to-ground lightning comes from the sky down, but the part you see comes from the ground up. A typical cloud-to-ground flash lowers a path of negative electricity (that we cannot see) towards the ground in a series of spurts. Objects on the ground generally have a positive charge.
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lightning If the surrounding air has a net charge, an air discharge from the cloud may occur. The flash of cloud-to-ground lightning is initiated by the neutralization of the small net-positive charge in the lowest region of the cloud. A cloud-to-ground flash comprises at least two strokes: a leader stroke and a return stroke.
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Arteries Human Anatomy » Basic Anatomy » Arteries. Arteries are blood vessels that supply blood to the tissues of body. They carry the blood away from heart and because the blood inside them is oxygenated, they appear red in color. Arteries are thick-walled, being uniformly thicker than the accompanying veins, except for the arteries within the cranium and vertebral canal where these are thin.
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How lightning works A cloud-to-ground lightning strike starts as a channel of negative charges makes its path towards the ground. This occurrence is known as a stepped leader. The stepped leader continues towards the ground in a series of steps that are each about 50 to 100 metres in length.egative versus Positive Lightning Strikes. The vast majority of lightning strikes are negative lightning strikes, meaning there is a net transfer of negative charges from the cloud to the ground. Negatives strikes make up about 95 per cent of cloud-to-ground strikes.
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Lightning Models for the charge buildup which leads to lightning discharges suggest a buildup of a strong negative charge layer near the bottom of the cloud and the formation of a positive ground shadow.When the buildup is large enough to produce ionization of the air, a lightning discharge is initiated.This is called the positive dipole structure for the charge buildup. More recent studies indicate a tripolar structure.hen the buildup is large enough to produce ionization of the air, a lightning discharge is initiated. This is called the positive dipole structure for the charge buildup. More recent studies indicate a tripolar structure.
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Weather Library > Lightning Types and Classifications Intracloud Lightning. The most common type of discharge - lightning inside a single storm cloud, jumping between different charge regions in the cloud. Intracloud lightning is sometimes called sheet lightning because it lights up the sky with a 'sheet' of light.