PMT - storm hazards

Question 1

what is a tropical storm?

Answer 1

a low pressure, spinning storm
with high winds and torrential rain

Question 2

what are the 5 conditions needed for a tropical storm to form and develop?

Answer 2

ocean temp needs to be 26-27 degrees

unstable air pressure

rotation

wind shear

a trigger

Question 3

what temperature does the ocean need to be for a tropical storm to form? why is this needed?

Answer 3

26-27 degrees

warm water provides the storm with energy

Question 4

what type of air pressure is needed? where is this zone usually? what does this form?

Answer 4

unstable and humid
eg convergence zone (high and low pressure meets)
warm air can rise and clouds can form
air must be humid for cloud formation

Question 5

why must wind be present?

Answer 5

Winds must be present for
the swirling motion to form, but not too
strong or the storm system

Question 6

why is a trigger needed?

Answer 6

a pre-existing thunderstorm, a
spot of very high sea surface
temperature, an area of low pressure and
many other factors can act as a trigger
for a storm to develop, which will only
further develop when the other
conditions are present.