Most thunderstorms last about 30 minutes and are typically about 15 miles 24 km in diameter.
Why do we have lightning storms.
Lightning is an electrical discharge caused by imbalances between storm clouds and the ground or within the clouds themselves.
The cdc says that even at 100 feet away the electric current from lightning that runs on the.
It is estimated that a lightning strike hits somewhere on the earth s surface approximately 44 times every second a total of nearly 1 4 billion lightning strikes every year.
There is still much research that needs to be done to fully understand this process.
Thunder is created when lightning passes through the air.
When lightning strikes finding the right shelter may not always be easy.
What we see as a flash of lightning may actually be four different strokes in exactly the same place one right after another.
To understand why thunderstorms occur more often during the warm months requires some understanding of thunderstorm basics.
It can be seen in volcanic eruptions extremely intense forest fires surface nuclear detonations heavy snowstorms in large hurricanes and obviously thunderstorms.
The two biggest threats associated with most thunderstorms are lightning and flash floods.
Look for darkening skies flashes of.
Keep an eye at the sky.
Owing to the fact thunderstorms are created by intense heating of the earth s surface they are most common in areas of the globe where the weather is hot and humid.
A build up of positive charge builds up on the ground beneath the cloud attracted to the negative charge in the bottom of the cloud.
That s why lightning appears to flicker.
The temperature of the air in the lightning channel may reach as high as 50 000 degrees fahrenheit 5 times hotter than the surface of the sun.
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Lightning is one of the oldest observed natural phenomena on earth.
Most lightning occurs within the clouds.
Lightning safety tips if you re outdoors.
That s correct but one thing you should never do during thunderstorms is lie down on the ground.
Immediately after the flash the air cools and contracts quickly.
The ground s positive charge concentrates around anything that sticks up trees lightning conductors even people.
The lightning discharge heats the air rapidly and causes it to expand.
Read more about nssl s lightning research here.
Most lightning happens inside a cloud but sometimes it happens between the cloud and the ground.