Tornadoes

Thunderstorms are the result of which type of pressure system?

• Low

• High

Which leads to low pressure systems?

• warm air rising

• warm air falling

• cold air rising

• cold air falling

What causes storm clouds to develop?

• dry air rising and cooling

• humid air rising and cooling

• dry air descending and warming

• humid air descending and warming

Place the following events in sequence: A) A tornado touches down; B) An updraft tilts a column of spinning air; C) Cool, dense air begins descending

• C,B,A

• B,C,A

• A,B,C

• C,A,B

Collectively, the states of Texas, Oklahoma, Kansas and Nebraska, where tornadoes occur often, are all called

• Tornado towns
• Storm centers
• Tornado Alley
• Cyclone counties

Where do tornadoes start?

• Over the ocean near the equator
• In the clouds that create blizzards
• In the clouds of severe thunderstorms
• Any time that it rains

Which month typically experiences the most tornadoes?

• March

• May

• August

• June

What two factors determine a tornado's intensity?

• Wind speed and direction

• Pressure and temperature

• Number of houses destroyed

• Wind speed and destruction

What factor is most crucial for tornado formation?

• Wind Shear

• Precipitation

• Hail

• Wind speed

A thunderstorm with high probability of producing severe weather

• anvil cloud

• mesocyclone

• supercell

• thunderhead