Welcome
back my fellow learners, today we are going to learn about how mother
nature creates tornadoes and hurricane's.
A
tornado is a fast spinning pocket of air which comes from
thunderstorms, and begins from the ground. The makings of a tornado
is mainly a thunderstorm, changing speeds in the wind and fast air
rising. Should you watch a thunderstorm start, you will see the
clouds start to build upward. This rising air causes the rain and
hail to be formed out of the water within the air. Throw in rapidly
changing wind speed, and the direction with the height creates the
rapidly rising air to start to spin. The principle is the same with a
toy spinning top. You use your fingers to spin it in opposing
directions enabling the top to spin. This is similar to the wind
which comes from different directions. Many thunderstorms do not
create tornadoes due to the fact the spin cannot be balanced with the
rising air from the surface. However, when the balance is right
between rising air which comes into a thunderstorm, and the winds
change height, then a tornado will be created. Tornadoes come in
different categories, can can last a few seconds to several
minutes.
A hurricane is a large thunderstorm which starts over
the ocean. The mixture of warm ocean water, level winds, and low
pressure will create one. The warm ocean will supply the moisture
needed for a hurricane. The upper levels winds permit the developing
hurricane to be cohesive, and the low pressure lets thunderstorms
develop. As they develop, they are influenced over several hours and
days by the rotation of the earth. This allows thunderstorms to begin
developing into a circulation where they spin round a central point,
this is referred to as the eye. Should the circulation stay over warm
water, and upper level winds remain weak, then hurricane's winds will
get stronger. The hurricane should begin to weaken once it hits land,
over water which is too cold to maintain it, or should the upper
level winds be strong enough to begin breaking the circulation.
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