GIANNETTA WEATHER


Bath, Pa,



"N O T E" All weather articles written by the author, weather records for Bath, Pa. USA, graphs, graphics, pictures, are copyrighted and are owned by the author.

If you make use of data from this site, please make reference to the: Station Licensee: Virginia T. Giannetta. Owner - Author: Charles A. Giannetta. Computer Consultant: Charles E. Giannetta & This Web Site. Thank you.



**Lightning**



There are many descriptions of lightning, the most common is streak lightning which appears zigzag in shape. Its look very much like the outline of a river. It may be a single or multiple streaks, or may be split up into smaller jagged branches.

Bead Lightning...Is a form of streak lightning. The appearance of beads may be caused by variations in the brightness along the path of the stroke.

Ribbon Lightning...Is streak lightning with numerous discharges where the path of the lightning is blown sideways by the wind.

Fork Lightning...Describes strokes which have more than one path to the ground.

Heat Lightning...Is streak lightning off in the distance too far to hear thunder.

Sheet Lightning...A diffused, glowlike lightning whitish in color, covering a considerable area in the clouds.

Ball Lightning...Visibly for a very short time, has been observed as a bright ball, about 4 to 5 inches in diameter as it comes out of the clouds at a very high speed, low to the ground, is reddish in color. Has been observed as floating or in a stalled position. Visible for a short time, dissappears quietly or with a loud noise.

Lightning is whitish in color, having the combined spectrum of Oxygen and Nitrogen. It sometimes appears differently colored against different backgrounds and surroundings in contrast to yellowish artificial lights. Lightning may also appear bluish or reddish.

Lightning never stikes twice in the same place is false. Many flashes of lightning are of the multiple variety and strike many times in a few seconds. Tall towers often receive many strikes during thunderstorms.

Lightning strikes last only a few millionths of a second. The strikes are made up of several pulses comimg so close together, our eyes cannot always distinguish them. These fast pulses make lightning flashes seem to flicker.


© 1998 - 2013 Charles A. Giannetta

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