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General Weather/Earth Sciences Topics => Lightning => Topic started by: PaulMy on September 10, 2016, 05:29:05 PM
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An impressive line of lightning...
Paul
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My guess is a very distinct squall line right?
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Don't know what it is called, but correct, just missing us on the right...
Paul
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A squall line is a line of thunderstorms that can form along or ahead of a cold front. In the early 20th century, the term was used as a synonym for cold front. It contains heavy precipitation, hail, frequent lightning, strong straight-line winds, and possibly tornadoes and waterspouts. Strong straight-line winds can occur where the squall line is in the shape of a bow echo. Tornadoes can occur along waves within a line echo wave pattern (LEWP), where mesoscale low pressure areas are present. Some bow echoes which develop within the summer season are known as derechos, and they move quite fast through large sections of territory. On the back edge of the rain shield associated with mature squall lines, a wake low can be present, sometimes associated with a heat burst.
;)
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That's about the most linear squall line I've ever seen, especially considering the length. Amazing.
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Yes, it is unusual for a front to advance in such a straight line and it also must have been very sharp front, i.e. very large pressure gradient, it normally is much more spread
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Well at least without bowing segments, straight line winds shouldn't be too bad.
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It is pretty amazing, its a wall from Texas to Toronto now and sweeping across toward the East.
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We had this squall line come through about 3PM yesterday afternoon (9/10). There was brief intense rain that lasted about 10 minutes. I could see the lightning on my detectors as well, but it was south of my NE Lower Michigan location. We didn't hear any thunder here.
Greg H.
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Everyone looks at the lighting as harmful side effect of storm. But the lighting produce benefits. The Lightning helps to produce fertilizers for the plants. Lightning also produces ozone, a vital gas in our atmosphere that helps shield the planet from rays of harmful ultraviolet sunlight. But in the United states at least 100 people are struck by the lightning every year. Lighting sometimes kill people that is not the case all the time.