call them twisters or tornadoes they’re nature’s most violent storms with
nature’s most violent storms with
nature’s most violent storms with swirling winds that can top 300 miles
swirling winds that can top 300 miles
swirling winds that can top 300 miles per hour about 800 twisters sweep
per hour about 800 twisters sweep
per hour about 800 twisters sweep through the US every year
through the US every year
through the US every year or than anywhere else in the world the
or than anywhere else in the world the
or than anywhere else in the world the hardest hit area is a swath of the Great
hardest hit area is a swath of the Great
hardest hit area is a swath of the Great Plains from Texas to South Dakota known
Plains from Texas to South Dakota known
Plains from Texas to South Dakota known as Tornado Alley here warm air flows up
as Tornado Alley here warm air flows up
as Tornado Alley here warm air flows up from the Gulf of Mexico in the spring
from the Gulf of Mexico in the spring
from the Gulf of Mexico in the spring and summer and crashes into cold air
and summer and crashes into cold air
and summer and crashes into cold air pushing down from Canada the meeting
pushing down from Canada the meeting
pushing down from Canada the meeting produces violent thunderstorms called
produces violent thunderstorms called
produces violent thunderstorms called super cells scientists don’t completely
super cells scientists don’t completely
super cells scientists don’t completely understand how or when tornadoes form
understand how or when tornadoes form
understand how or when tornadoes form but they do know a supercell like this
but they do know a supercell like this
but they do know a supercell like this one can produce a twister if the
one can produce a twister if the
one can produce a twister if the conditions are right
as warm/moist air flows into a storm it
as warm/moist air flows into a storm it gets pushed up and twisted by
gets pushed up and twisted by
gets pushed up and twisted by upper-level winds as this rotating
upper-level winds as this rotating
upper-level winds as this rotating column of air gathers force conditions
column of air gathers force conditions
column of air gathers force conditions are ripe for a collision below when rain
are ripe for a collision below when rain
are ripe for a collision below when rain cooled down drafts hit warm air near the
cooled down drafts hit warm air near the
cooled down drafts hit warm air near the ground a low-hanging revolving cloud
ground a low-hanging revolving cloud
ground a low-hanging revolving cloud forms beneath the cell a tornado is
forms beneath the cell a tornado is
forms beneath the cell a tornado is imminent
imminent
imminent tornadoes don’t last long anywhere from
tornadoes don’t last long anywhere from
tornadoes don’t last long anywhere from 20 seconds to an hour but it can take
20 seconds to an hour but it can take
20 seconds to an hour but it can take years to recover from the devastation
years to recover from the devastation
years to recover from the devastation these storms kill nearly 90 people each
these storms kill nearly 90 people each
these storms kill nearly 90 people each year in the US and cause millions of
year in the US and cause millions of
year in the US and cause millions of dollars worth of damage when a tornado
dollars worth of damage when a tornado
dollars worth of damage when a tornado is spotted experts advise going to a
is spotted experts advise going to a
is spotted experts advise going to a basement staying away from any windows
basement staying away from any windows
basement staying away from any windows or climbing into a first floor bathtub
or climbing into a first floor bathtub
or climbing into a first floor bathtub while most people run for safety when a
while most people run for safety when a
while most people run for safety when a twister appears some scientists actually
twister appears some scientists actually
twister appears some scientists actually raises to meet it these storm chasers
raises to meet it these storm chasers
raises to meet it these storm chasers hunt down tornadoes trying to get right
hunt down tornadoes trying to get right
hunt down tornadoes trying to get right in the twisters path they encounter
in the twisters path they encounter
in the twisters path they encounter incredible cloud movement torrential
incredible cloud movement torrential
incredible cloud movement torrential rain
rain
rain severe winds and hail lightning
breathtaking storm structures when they
breathtaking storm structures when they finally locate a twister they measure it
finally locate a twister they measure it
finally locate a twister they measure it using special tools these scientists
using special tools these scientists
using special tools these scientists hope to someday predict exactly when and
hope to someday predict exactly when and
hope to someday predict exactly when and where tornadoes will strike little can
where tornadoes will strike little can
where tornadoes will strike little can prevent the damage caused by tornadoes
prevent the damage caused by tornadoes
prevent the damage caused by tornadoes but better forecasting could save more
but better forecasting could save more
but better forecasting could save more lives giving survivors the chance to
lives giving survivors the chance to
lives giving survivors the chance to rebuild after living through one of the
rebuild after living through one of the
rebuild after living through one of the most violent storms on earth
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