Ever Heard of the 'Dead Man Walking' Tornado?

People from Oklahoma to Tennessee are familiar with the different types of tornadoes, and the towns infamous ones struck. But have you ever heard of the "Dead Man Walking" tornado?

How are tornadoes graded?

According to the National Weather Service, tornadoes are graded based on the Enhanced Fujita Scale, or "EF Scale," which "is used to assign a tornado a 'rating' based on estimated wind speeds and related damage." Tornadoes are rated anywhere from EF0 to EF5. Usually the ones people remember were rated an EF5.

Below is the EF Scale for tornadoes:

EF0 - 65-85 mph wind gusts
EF1 - 86-110 mph wind gusts
EF2 - 111-135 mph wind gusts
EF3 - 136-165 mph wind gusts
EF4 - 166-200 mph wind gusts
EF5 - Over 200 mph wind gusts

So what's the 'Dead Man Walking' tornado?

The official tornado EF scale doesn't have much to do with the "Dead Man Walking" tornado, but the ones recorded have been high on the scale. According to an article from New Hampshire Public Radio, the term "Dead Man Walking" for tornadoes, refers a term coined by tribal elders with the Cherokee nation.

They would refer "Dead Man Walking" to tornadoes with "two simultaneous tornadoes spawned from one thunderstorm." This often makes the tornado look like it's walking across the sky. And since tornadoes often cause death and destruction, it would represent a dead man walking.

@baddreams1985 Things That Scare Me: The “Dead Man Walking” Tornado #creepy #creepytok #scary #horror #horrortok #tornado #fyp #fypシ #fypシ゚viral #foryou #foryoupage ♬ Black Star - Lustmord

Where has there been 'Dead Man Walking' tornadoes?

It appears "Dead Man Walking" tornadoes have occurred in almost every state within tornado alley. Below are the tornado events where "Dead Man Walking" tornadoes have been spotted.

The Ten Most Tornado-Prone Counties in America

When it comes to the topic of tornadoes, Oklahoma is universally known around the world for producing some of the biggest, including the last F6 ever measured... but it'd probably surprise most Okies that the Sooner State doesn't even crack the top five of the most tornado-prone counties in America.

Gallery Credit: Kelso

TWISTERS: Counties With the Most Tornadoes in Oklahoma

Stacker compiled a list of counties which experience the most tornadoes in Oklahoma using data from NOAA's National Centers for Environmental Information.

Gallery Credit: Stacker