Hurricanes

Cristina Neme2ºBachillerato D

Outline

•What is a Hurricane?

•How and where are they formed?

•Hurricane’s structure

•How are they measured?

•How and why they are called so?

•Worst Hurricanes of all time

•Summary

•Questions

What is a Hurricane?

•Intense wind•119 km/h (74 mph)

How and where are hurricanes formed?

•Tropical Storms

•Oceans near the Equator

•Wind begins to circle

•Speeds of 119 and 240 km/h

•Loses its power

Hurricane’s Structure

How are they measured?

•Saffir-Simpson Hurricane Scale

•Classifies Hurricanes

•Maximum sustained winds

•Indicates damages and flooding

•This classification is too simple

How are they measured?

•There’s 5 categories

How and Why they are called so?

•Meteorologists started calling hurricanes

•Easier communication between them and public

•Clement Wrage

•1978, male names were included

•Names can be replaced and registered

Worst Hurricanes of all time

•Katrina (2005)

•Andrew (1992)

•Mitch (1998)

•Wilma (2005)

•Hugo (1989)

Katrina (2005)

•Category 5

•29.08.2005

•Lousiana, Mississippi, Alabama

•Winds of 240 km/h

•Half million of inhabitants were affected

Katrina (2005)

Katrina (2005)

http://www.youtube.com/watch?v=s76Qn7bpCsQ

Andrew (1992)

•Category5

•16-28.08.1992

•Bahamas, Miami, Lousiana Florida

•Winds between 232 and 264 km/h

•30 kms of disaster

Andrew (1992)

Mitch (1998)•Category 5

•22.10.1998

•Atlantic ocean

•Central America


•It killed 18.000 people

Mitch (1998)

Wilma (2005)

•Category 5

•October

•Yucatán, Cuba, Florida

•Not so much damages


Wilma (2005)

Hugo (1989)

•Category 5

•Costa Rica, Saint Croix, Carolina del Sur

•It did not kill so much people

Hugo (1989)

Summary

•A hurricane is an intense wind (119 km/h)

•It begins as a Tropical Storm

•Eye of the hurricane is a peaceful area

•Hurricanes are measured by the Saffir-Simpson Scale

•Hurricanes are called with people’s names

•Katrina Hurricane had been the most destructive

Questions

1.The Saffir-Simpson scale is…a) Quite complicatedb) Too Simpled) That scale doesn’t exist

2.The most destructive hurricane was…a)Wilmab)Mitchc) Katrina

3.To consider a storm as a hurricane its winds should be…a)Faster than 89 km/hb)119 km/hc)240 km/h

Questions

4. Winds in category 5 are…a) > 200 km/hb) > 250 km/hd) < 200 km/h

5. The eye of the hurricane is…a)A peaceful areb)The center of the hurricanec)Both are true

6. The highest category on the saffir simpson scale is…a)10b)5c)20

Technology

Hurricanes