Tornadoes , it sprain out , are about as American as Malus pumila pie . The United States is home base to the majority of all the tornado that touch down around the world every year . Most of these twisters are modest and only last a couplet of minutes , but a small percentage of them can grow tremendous and last for many hours , sometimes tearing a track across entire State Department . The turgid tornadoes are in a class all their own as some of the scariest weather condition conditions nature can create .

1. HUGE TORNADOES REQUIRE HUGE THUNDERSTORMS.

The median crack is only a few hundred metrical unit extensive , but some can beas narrow as a single vehicleor as wide as a nautical mile or more across . The largest tornadoes require immense electrical storm call supercells to form . A supercell is a thunderstorm with a rotating updraft . This rotate updraft help the tempest become strong and live . This supererogatory boost gives supercells the power to bring about hail the size of baseballs or larger , intense winds , and tremendous tornadoes .

2. THE HOOK BRINGS YOU BACK.

Tornadoes usually work in the “ claw sound reflection ” of a supercell , which is the point where winds wrapping around the tempest meet with the updraft racing skywards into the storm . This hook echo is ominously visible on radiolocation imagery and a stunning sight in individual . Scientists are still studying why some supercells produce tornadoes and others do n’t , but a well - defined hook sound reflection is unremarkably a sorry signaling that things could get ugly in a hurry .

3. THEY CAN STAY ON THE GROUND FOR A LONG TIME.

big tornadoes typically have longsighted tracks . Many of these unusually extensive storms can stay on the ground for dozens of miles , sometimes track several state before last disperse . Arecent crack in Wisconsintracked along a course more than 80 mile long . unluckily , when a tornado covers so much ground , it ’s more likely to dispatch populated areas . Many of the tragic tornadoes we ’ve see in late history caused the amount of damage they did not just because they were acute , but because they covered so much land .

4. SIZE CAN BE DECEIVING.

You should n’t guess a tornado solely by its size . Some pocket-size tornadoes can produce scurf - top off wind , while some large tornado are more bark than sting and leave only nonaged terms — to barns or farm equipment , for deterrent example — in their Wake Island . A tornado itself is a rotate editorial of wind , and it ’s the wind that matters . The rationality we can see tornadoes is that the lowly press within that column condenses moisture in the air , bring forth a funnel cloud . If a crack cocaine moves through an area with lots of dust or open soil , it can make the tempest front much enceinte than it actually is .

5. SOME BIG TORNADOES ARE MADE UP OF SMALLER TORNADOES.

A huge twister can be one terrifying wedge of shadow , but it ’s more usual for these storms to have several smaller vortices swirling within the larger crack itself . violent storm chasers report this as a " multiple - vortex tornado . ” There is some true statement to the saying that a tornado can demolish one business firm and leave the home next doorway unaffected . Some of the bad and strangest damage seen after large tornado is attributable to the lowly , quick “ suction whirlpool ” that circulate within a bombastic tornado , sort of like horses pass around on a carousel .

6. THE CENTER OF A TORNADO CAN BE RELATIVELY CALM.

If you ’ve ever pick up the notable final scene of the movieTwister , you ’ve likely marvel whether it really is calm and clear in the middle of a crack . It ’s not exactly the eye of a hurricane , but the middle of a tornado usually is the calmest part of one of these storm . It ’s exceedingly laborious to tape ( or even see ) the inside of a magnanimous crack cocaine , but calculate on how big it is , the relative lull is likely fugitive and probably still contains gusty winds and flying dust .

7. IMMENSE TORNADOES CAN DO HORRIFYING THINGS.

It ’s unsettling to believe about what 200 - plus miles per hour breaking wind can do when they tear through a populated area . TheEF-5 tornado that struck Joplin , Missouri , in 2011 was so impregnable that it distort and shifted the entire structure of a hospital , requiring its demolition . It ’s common to get wind reports of trenches scoured into the earth and sidewalk rip out of the earth from the intense winding . And there are plenty of accounts of more unusual harm , too , such as thin objet d’art of wood being driven through a Sir Herbert Beerbohm Tree trunk ora charge card drinking strawallegedly prune through a piece of mainsheet alloy .

8. OKLAHOMA IS GROUND ZERO FOR THESE BEHEMOTHS.

The fundamental United States is competently nicknamed “ Tornado Alley ” for its tendency to see more tornadoes than anywhere else in the world , and that total includes at least a duet of big , mile - wide crack every year . Central Oklahoma holds the record for both the expectant and the substantial twister ever memorialise . A twister that pertain down in El Reno , Oklahoma , on May 31 , 2013 , measured 2.6 mile wide at one point , easily breaking the record for the broad tornado ever follow . Back in 1999 , a roving Doppler weather radiolocation recorded confidential information of more than 300 mph in an F5 tornado that touched down south of Oklahoma City .

Justin1569, Wikimedia Commons // CC BY-SA 3.0

A radar image of the supercell that produced a mile-wide F5 tornado near Oklahoma City on May 3, 1999.