Questions tagged [lightning]

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What colors can lightning be and what causes the different colors?

I've always thought of lightning as being either bright white or yellow in color. However, in the summer I've also seen lightning appear red as so called "heat lightning". What I'm wondering is what ...
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193 views

Photo of sprites in a clear dark sky, how is this possible?

above x2: Photos by David Finlay, from here. The BBC news article Rare 'sprites' photographed beside Southern Lights shows photographs by the Australian photographer David Finlay. They are remarkably ...
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Is archived lightning data from the GOES-16 beta test available?

I was only able to find real-time data. Or do I have to wait until the Geostationary Lightning Mapper is greenlit for production in 2018?
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Winter Wheat & Wildfires

TL;DR: How susceptible is winter wheat to wildfire, in the environment that winter wheat is used? The scenario: Shallow water table, a steppe environment, deep-root winter wheat and a HIGH ...
3
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0answers
814 views

Are there places with rain and snow but no lightning and thunder?

I've been in Ukraine (Kiev) in the winter, and this winter was snowy and rainy but still I've never seen or listened there neither lightning nor thunders. What is the explanation for that? I thought ...
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Why did Hurricane Harvey have so much lightning associated with it?

Hurricane Harvey was a prodigious lightning producer when it hit Houston/SE Texas. But I thought hurricanes don't have much lightning (with the eyewall being the only exception), due to tropical ...
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58 views

Does lightning release the same electromagnetic emmisions as an arc welder?

Looking at an arc welder is bad, it is a source that emits on a broad range of the electromagnetic spectrum. More specifically the blue and UV are particularly bad for vision: Artificial sources of ...
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341 views

Where does lightning strike?

While watching lightning activity in the sky from afar, a natural curiosity welled within me. What are the exact locations where those lightning bolts strike? All these questions appear because of my ...
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44 views

To what extent does lightning produced NOx end up in the atmopsheric boundary layer?

Lightning produced NO$_{x}$ (emitted as NO but quickly converted to NO$_{2}$) can be one of the major sources of atmospheric NO$_{x}$ in the tropics [1]. Estimates of emissions per flash range from 10 ...
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61 views

What triggers the formation of channels of ionized air for lightning strikes to occur?

I apologize for the lack of foundational knowledge underlying this question. At wikipedia it is stated Initiation of the outward leaders is not well understood. The electric field strength ...
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256 views

What causes lightning to be a different color above the clouds than below the clouds?

Recently, I was flying out of the midwest during a lightning storm, and I was able to see lightning both above and below the clouds. I noticed that the lightning below the clouds was orangish/...
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Blue Ridge Mountains and the Great Smoky Mountains

Why is it that in the Blue Ridge and Great Smoky Mountains that in October, thunderstorms stop happening and why is it that there were thunderstorms in the forecast a few times this October and today ...