Natural Disasters & Management. about TORNADO

tornado in disaster management

1. Natural Disasters & Management
TORNADO
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2. Basic outlines
1.What isTornado?
•Definition
•Characteristic
2.TornadoFormation
•Causes of Tornado
3.Types oftornado
4.Effectsoftornado
•Effects
•Major tornado events
5.Tornado Mitigation

3. •A tornado is a violently rotating column of air that extent from a
thunderstorm to the ground.
•it’s also called “TIWSTER”.
•These spinning columnsofwindcantakevariety of shapes such as
rope, funnel, cylinders.
•Every tornado must extend downward form cumulonimbus to ground.
•The funnel shaped tornado that haven’t touched the ground are called
”FUNNEL CLOUDS”
WHATISTORNADO

4. TORNADO FORMATION
•Causesoftornadoformation
•Suitable climatic conditions
•Extremelylargethunderstorm
•Supply of wind
•Unstablewindshear

6. Stages of formation of tornado
•Tornado form where there are large difference in atmospheric
pressure.
•Oftenresultsduringamajorstorm suchas“SUPERCELL”
thunderstorm.
•Supercellisalargerotatingthunderstormwhichpossessmesocyclone
having aability to updraft massive cloud to rotate inside.

7. Formation of horizontal wind
shear
•Duetovertical difference in wind speed
horizontal wind shear develops.
•Rotating speed increase with height.
•Supplyofleads to grow big horizontal rotating
air cylinder.
•It is an important factor in meteorology,
particularly when studying weather systems like
thunderstorms, tornadoes, and general
atmospheric stability.

8. Classification of Tornado
•Week tornado
•Strong tornado
•Violent tornado

9. Other types of tornado
•Supercell Tornado
•LandspoutTornado
•Gustanado
•Waterspouts
•Dust Devil
•FireTornado

10. Supercell Tornado
•A supercell tornadois a type of tornado
that forms in association with a supercell
thunderstorm.
•A rotating updraft is a key to the
development of a supercell ,and
eventually a tornado .Once the updraft is
rotating and being fed by warm, moist air
flowing in at ground level, a tornado can
form.

11. Landspout Tornado
•The spinning motion originates near
the ground. waterspouts are similar
to landspouts except they occur over
water.
•Thespinningmotionoriginates near
the ground.
•Waterspouts aresimilarto
landspouts,exceptthey occur over
water.

12. GUSTANADO
•A gustanadois a shallow surface-based vortex which forms within the
downburst emanating form a thunderstorm.

13. Water spouts
•Waterspouts are tornadoes that form over water,ormove from land
to water.

14. DUST DEVIL
•Dust devil ,also called sand devil, small,
spinning wind occurring most frequently in
the early afternoon when a land surface is
heating rapidly.
•Dust devils are occasionally made visible by
the full of dust,leaves,orother loose matter
from the surface.

15. Fire tornado
•Fire tornadois awhirlwindinduced by
afireand often (at least partially)
composed offlameorash.
•These start with a whirl ofwind, often
made visible bysmoke, and may occur
when intense rising heat and turbulent
wind conditions combine to form
whirlingeddiesof air.

16. EFFECTS OF TORNADO
•Loss of life
•Property damage
•Effectsofnature
•Lightning
•Pyschologicaleffects

17. THANK YOU