Severe Weather Notes

Question 1

Thunder is the sound caused by

Answer 1

Rapid expansion of air along the lightning strikes

Question 2

What percent of tornadoes happen in the US? What percent of thunderstorms become tornadoes?

Answer 2

75%,1%

Question 3

How long are tornadoes and what is the average wind speed and spinning wind speed

Answer 3

Length: 8km long 10-60m wide
Wind speed120-180km/hr
Spinning winds up to 500 km/hr

Question 4

Hurricane wind speed

Answer 4

At least 110 km/hr

Question 5

Names for hurricanes in western pacific and Indian Ocean

Answer 5

Western: typhoons
Indian: cyclones

Question 6

Diameter of a hurricane

Answer 6

160-1500 km

Question 7

How do hurricanes form

Answer 7

A group of thunderstorms split by wind, energy is contained through condensation,

Question 8

Strongest part of the hurricane and wind speeds

Answer 8

Eye wall

Up to 300 km/hr

Question 9

Storm surge height

Answer 9

8 m high

160 km long

Question 10

The storm surge has its greatest height right before it crashes into the

Answer 10

Shore

Question 11

Thunderstorms are caused when

Answer 11

Warm, moist air rises

Question 12

Lightning happens when

Answer 12

An electric discharge that takes place between a

Positively charged area, and a negatively charged area