# How do I tell how far away lightning is?

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## How do I tell how far away lightning is?

After you see a flash of lightning, count the number of seconds until you hear the thunder. (Use the stop watch or count “One-Mississippi, Two-Mississippi, Three-Mississippi,” etc.) For every 5 seconds the storm is one mile away. Divide the number of seconds you count by 5 to get the number of miles.

## How do you calculate distance from thunder to KM?

If you want to know approximately how far away is lightning in miles, divide the number of seconds by 5, for kilometers divide the seconds by 3. It will give us 3 miles or 5 kilometers.

## When you hear thunder How far away is the storm?

Thunder can be heard up to 25 miles away, and lightning strikes have been documented to occur as far as 25 miles from thunderstorms – known as a “bolt from the blue.” So if you can hear thunder, you’re close enough to be hit by lightning, and sheltering indoors or in an enclosed car is your safest bet.

## Why do you see lightning from a distance before you hear thunder?

If we are watching the sky, we see the lightning before we hear the thunder. That is because light travels much faster than sound waves. We can estimate the distance of the lightning by counting how many seconds it takes until we hear the thunder. It takes approximately 5 seconds for the sound to travel 1 mile.

## How do you tell if a storm is coming or going?

If you feel the temperature drop from warm or hot to a more brisk temperature, you know the storm is approaching very quickly. Beware of Sudden Wind Changes – Be on your toes if it suddenly gets very windy or if there is an abrupt calm during or right after a thunderstorm.

## How do you calculate thunder distance?

If you count the number of seconds between the flash of lightning and the sound of thunder, and then divide by 5, you’ll get the distance in miles to the lightning: 5 seconds = 1 mile, 15 seconds = 3 miles, 0 seconds = very close. Keep in mind that you should be in a safe place while counting.

## Why is there a 30/30 rule?

No Place Outside Is Safe Near A Thunderstorm! The ’30-30 Rule’ Offers The Best Lightning Safety Guidance For The General Public. When You See Lightning, Count The Time Until You Hear Thunder. Wait 30 Minutes Or More After The Lightning Flash Before Leaving Shelter.

## Is it safe to stand near a window during a thunderstorm?

Myth #9 – A house will always keep you safe from lightning. You must avoid any conducting path leading outside, such as electrical appliances, wires, TV cables, plumbing, metal doors or metal window frames. Don’t stand near a window to watch the lightning.

## What are the 3 stages of thunderstorms?

Thunderstorms have three stages in their life cycle: The developing stage, the mature stage, and the dissipating stage.

## Why do I feel bad before a storm?

Barometric pressure drops in colder weather, like what comes before a storm, and the downward shift in pressure is theorized to cause the soft tissues of the body to expand very slightly, causing pain from increased pressure in arthritic, sensitive joints.

## Can thunder kill you in your house?

Police investigators recently found the badly burned body of a man in his house, and concluded that he was killed by lightning — while still indoors. Lightning can kill — about 30 Americans die from lightning strikes each year. But being struck indoors is exceedingly rare.

## What happens if you are near a lightning strike?

Dr. Griggs says if a person is struck by lightning, it can cause cardiac arrest, which stops a person’s body from circulating blood and cause direct injury to the brain and nervous system, preventing the brain from being able to send the appropriate signals to tell the body to continue breathing.

## Is the 30 30 rule for thunderstorms?

Lightning 30/30 rule: If it takes less than 30 seconds to hear thunder after seeing the flash, lightning is near enough to pose a threat; after the storm ends, wait 30 minutes before resuming outdoor activities.

## Can I use the toilet during a thunderstorm?

No. Lightning can travel through plumbing. It is best to avoid all water during a lightning storm.

## Can I charge my phone during a thunderstorm?

While it is safe to use a cellphone (if it’s not plugged into a wall charger, that is) during a thunderstorm, it is not safe to use your landline. Lightning can travel through the phone lines—and if it does, you could be electrocuted.

## What is the most dangerous stage of a thunderstorm?

Mature Cumulus Stage
The Mature Cumulus Stage The storm has considerable depth, often reaching 40,000 to 60,000 feet (12 to 18 km). Strong updrafts and downdrafts coexist. This is the most dangerous stage when tornadoes, large hail, damaging winds, and flash flooding may occur.

## Why do thunderstorms happen at night?

Very few know why thunderstorms occur at night. At night the air cools rapidly. However the air near the ground doesn’t cool as fast because it is more humid/ contains more moisture than the air higher up.