Download - storm chasing and weather disasters 5.pptx
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Made By:-
0101072 Shrey Krishna
0101073 Vivek Pandey
0101075 Pratyush Chauhan
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THUNDERSTORMS
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CUMULONIMBUS CLOUDS
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WHAT MAKES A THUNDERSTORM?
Moisture: cloud formation & rain
Unstable air: relatively warm air rises rapidly
Lifting: from sea breezes and mountain interaction
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THREE TYPES OF
THUNDERSTORMS
Air Mass
Typical summer storms caused as Result of localized convection in an
unstable air mass
Frontal
Form right along or just ahead of a cold front
Orographic
This type of storm is the result of air that is forced upward by a mountain
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THUNDERSTORM FACTS
Every thunderstorm produces lightning
Heavy rain can lead to flash flooding
Strong winds, hail, and tornadoes may be associated with
thunderstorms
Romans thought them to be battles waged by Jupiter, who hurledlightning bolts forged by Vulcan
Christian doctrine accepted the ideas ofAristotle that winds were
caused by exhalations from the Earth and that fierce storms were
the work ofGod.
http://en.wikipedia.org/wiki/Ancient_Romehttp://en.wikipedia.org/wiki/Jupiter_(god)http://en.wikipedia.org/wiki/Vulcan_(mythology)http://en.wikipedia.org/wiki/Christianityhttp://en.wikipedia.org/wiki/Aristotlehttp://en.wikipedia.org/wiki/Godhttp://en.wikipedia.org/wiki/Godhttp://en.wikipedia.org/wiki/Aristotlehttp://en.wikipedia.org/wiki/Christianityhttp://en.wikipedia.org/wiki/Vulcan_(mythology)http://en.wikipedia.org/wiki/Jupiter_(god)http://en.wikipedia.org/wiki/Ancient_Rome -
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THUNDERSTORM SAFETY TIPS
Go inside and stay away from windows, doors, and porches
Stay away from trees and out of boats
Avoid plumbing fixtures and contact with electrical fixtures
Stay off the phone!
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TORNADOES
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WHAT IS A TORNADO?
A tornado is a violently rotating column of air extending between, and
in contact with, a cloud and the surface of the earth
Tornadoes can come one at a time or in clusters
They can also vary in size, length, width, direction of travel, and
speed
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HOW DO YOU MEASURE A
TORNADO?
Since February 1, 2008 tornadoes have been measured based on
the Enhanced Fujita Scale (EF)
Was implemented in place of Fujita Scale developed by Ted Fujita
in 1971
This scale helps determine the speed of a tornado from weakest
to strongest
Based on the damage they cause
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THE ENHANCED FUJITA SCALE
EF 0 65 to 85 MPH
EF 1 86 to 110 MPH
EF 2 111 to 135 MPH
EF 3 136 to 165 MPH
EF 4 166 to 200 MPH
EF 5 Over 200 MPH
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WHEN AND WHERE DO
TORNADOES OCCUR?
Tornadoes can occur in anystate and anytimeof year
They typically occur from March to August
The most common tornadoes are in Tornado
Alley
Tornado Alley- Arkansas, Iowa, Kansas,Louisiana, Minnesota, North Dakota, Ohio,
Oklahoma, South Dakota, and Texas states ofUSA
In India they are very rare
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HURRICANES
A HURRICANE IS AN INTENSE
TROPICAL WEATHER SYSTEM THAT
HAS A WELL-DEFINED CIRCULATION
AND SUSTAINED WINDS OF 74 MPH ORHIGHER
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HOW DO HURRICANES FORM?
They form when they gather heat and energy through contact withwarm ocean waters
Water evaporates from the ocean and the moisture produces a storm
They can also form when a wind pattern occurs near the surface of
the ocean and spirals inward
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STORMS ASSOCIATED WITH
HURRICANES Tropical Depression
An organized of clouds and thunderstorms at low level circulation with winds at amaximum of 39 mph
Tropical Storm
An organized system of strong thunderstorms with winds between 39 to 73 mph
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WHEN AND WHERE DO
HURRICANES OCCUR?
Hurricanes can occur during any time of the year
Hurricane season is from June 1st to November 30th
They can form in the Atlantic Ocean, Caribbean Sea, Gulf of Mexico,and in the eastern Pacific Ocean
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HOW DO YOU MEASURE A
HURRICANE?
Hurricanes are measured by their speed and it is split into
categories
The categories range from one to five, with one being the
weakest and five being the strongest
The classification of hurricane systems is called the Safir-
Simpson Hurricane Scale
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SAFIR-SIMPSON HURRICANE
SCALE
Category One 74 to 95 MPH
Category Two 96 to 110 MPH
Category Three 111 to 130 MPH
Category Four 131 to 155 MPH
Category Five Winds greater then 155MPH
Note: Hurricanes of Category Three or above are considered majorhurricanes.
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WHY DO HURRICANES HAVE
NAMES?
Hurricanes are named to help identify and keep track of storms as
they move across the ocean
Atlantic hurricanes might have Spanish, French, or English
names since they come in contact with the borders
Hurricanes are named alphabetically by the National WeatherService
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In 1953, the National Weather Service began using female names
In 1979, they began to use both men and womens names
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THE PURSUIT OF ANY SEVERE
WEATHER CONDITION
MOTIVE CAN BE CURIOSITY,
ADVENTURE, SCIENTIFIC
EXPLORATION OR FOR NEWS /MEDIA COVERAGE
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STORM CHASING IS CHIEFLY A
RECREATIONAL ENDEAVOR
MANY CHASERS ALSO ARE STORMSPOTTERS, REPORTING THEIR
OBSERVATIONS OF HAZARDOUS
WEATHER TO THE AUTHORITIES
http://en.wikipedia.org/wiki/Storm_spotterhttp://en.wikipedia.org/wiki/Storm_spotterhttp://en.wikipedia.org/wiki/Storm_spotterhttp://en.wikipedia.org/wiki/Storm_spotter -
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SEASONAL ACTIVITY
MOST ACTIVE IN THE SPRING ANDEARLY SUMMER, PARTICULARLY MAY
AND JUNE
ACROSS THE GREAT PLAINS OF THE
UNITED STATES
http://en.wikipedia.org/wiki/Great_Plainshttp://en.wikipedia.org/wiki/United_Stateshttp://en.wikipedia.org/wiki/United_Stateshttp://en.wikipedia.org/wiki/Great_Plains -
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EQUIPMENTS
FIRST IN-FIELD TECHNOLOGYCONSISTED OF RADIO GEAR FOR
COMMUNICATION
EVOLUTION OF THE LAPTOP
COMPUTER WOULD BEGIN TO
REVOLUTIONIZE STORM CHASING
A MAJOR TURNING POINT WAS THE
ADVENT OF CIVILIAN GPS IN 1996
http://en.wikipedia.org/wiki/Laptop_computerhttp://en.wikipedia.org/wiki/Laptop_computerhttp://en.wikipedia.org/wiki/Global_Positioning_Systemhttp://en.wikipedia.org/wiki/Global_Positioning_Systemhttp://en.wikipedia.org/wiki/Laptop_computerhttp://en.wikipedia.org/wiki/Laptop_computer -
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DANGERS DURING STORM CHASING
MOST DANGEROUS THING TO FACE DURING A CHASE
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IF STRUCK BY THIS,U KNOW WHAT IS GOING TO HAPPEN
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PEOPLE HAVE LOST THEIR LIVES DUE TO THE EPIDEMICS CAUSED
BY THE STAGNANT WATER LEFT AS AFTERMATH
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QUESTIONS ????
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REFERENCES:-
WIKIPEDIA.COM
THE WEATHER CHANNEL.COM
GOOGLE.COM
STORMCHASERS.COM
GOOGLE IMAGES
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THANK YOU