Hurricanes and tornadoes

how does a tornado form

1. Wind moves in 2 directions. 2. Spinning air is turned into a virticle position 3. A spinning column of air forms a funnle. 4. Becomes a tornado when a funnel touches the ground.

list the five stages of a hurricane

1. tropical wave 2. tropical depression 3. tropical disturbance 4. tropical storm 5. hurricane

wind speeds for tropical storm

39 mph

what is a thunderstorm

a storm with lighting and thunder produced by a cumulobus cloud

what is the main difference between the us scale and the austtrainan scale

australian scale has only 2-5 and us has 1-5

eye of the hurricane

core of warm, calm air with low pressure at the center of the hurricane

in the indian ocean a hurricane is called a

cyclone

what scale is used to measure the intensity of hurrcanes in australia

enhanced saffer simpson scale

why dont hurricanes form on the equator

hurricane need the coriolis effects to start spinning.

hail forms when........freezes

rain

what scale is used to measure hurrancanes.

saffer simpson scale

how are hurricanes and tornadoes similar

strong winds, warnings and watches, cause property damage and can kill people

hurricane eye wall

surrounds the eye and contains most violent wind and rain

what is the fujita scale

the scale used to measure a the stength of a tornado.

how are tornadoes different from hurricanes

tornado - forms over land, fujita scale, no precip just wind hurricane - forms over water, saffir-simpson scale,usually has rain or hail

more layers of ice are added to hail when strong .........are formed in cumulonimbus clouds

wind

To determine the intensity of a tornado, what factor is analyzed.

wind speed

tropical depression

wind speed less than 38 mph

tropical storm

wind speeds between 39 and 73 mph

hurricane

wind speeds of at least 74 mph