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Lighting

Environmental Systems Weather Project

TermDefinition
cloud-to-ground lightning- cloud-to-ground lightning is the most dangerous type of lightning. Most cloud-to-ground lightning strikes come from the negatively charged bottom of the cloud traveling to the positively charged ground below.
intracloud lightning- Intracloud lightning is the most common type of lightning. This occurs when there are both positive and negative charges within the same cloud.
intercloud lightning- Intercloud lightning is less common. It's when a lightning strike occurs when there are positive and negative charges within different clouds and the strike travels in the air between them.
forked lightning- Forked lightning can be seen shooting from the clouds to the ground, from one cloud to another cloud, or from a cloud out into the air. This lightning can strike up to 10 miles away from a thunderstorm.
sheet lightning- Sheet lightning appears as flashes of light that seem to light up or illuminate entire clouds.
heat lightning- Heat lightning is a term used to describe lightning flashes that are too far away from you to hear the thunder.
high-altitude lightning- This form of lightning appears as brightly colored flashes, high above thunderstorms. You can't see these types of lightning from the ground.
ribbon lightning- Ribbon lightning is when a bolt of lightning separates due to wind and appears as parallel lightning streaks.
chain or bead lightning- chain or bead lightning is when a lightning bolt is broken into dotted lines while fading.
ball lightning- Ball lightning is usually spherical in shape and about one foot in diameter. Hissing noises originate from such balls and they sometimes make a loud noise when they explode.
St. Elmo's Fire- It is created when tiny positively charged sparks reach up in response to negatively charges in the air or clouds above the ground.St. Elmo's Fire appears as a blue or greenish glow above pointed objects on the ground.
Anvil lightning- Anvil lightning is a type of lightning referred to as "the bolt from the blue" because it often appears suddenly from a seemingly cloudless sky.
Protons- particles with a positive charge
Electrons- particles with a negative charge
Static electricity- It is a form of electricity that is created when an object has too many electrons, giving it a negative charge.
leaders- channel of charged air created by excess electrons in a thunderstorm cloud. A leader reaches from the cloud to the ground below, looking for positive charges.
Return stroke- It's an electrical charge that travels from the ground to a thundercloud.
Streamers- A channel of charged air created by protons on the ground. They are created when leaders are created and reach from the ground to the sky looking for a leader to connect with.
Created by: s-hozri
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