A tornado watch means that tornadoes are

• in the immediate area

• on the ground

• likely to occur

• possible

A tornado warning means that a tornado is

• in your state

• likely to occur

• on the ground

• possible

NWS stands for

• National Weather Stations

• Natural Weather Service

• National Weather Service

• Naval Weather Station

How do you know that a threatening weather system is approaching?

• Cell phone, computer, television, radio

• Emergency Alert Sirens

• Satellite Radar

• NWS weather broadcaster

This is a disturbance in the atmosphere that is characterized by lightning and thunder.

• Tornado

• Hurricane

• Thunderstorm

• None of these

These clouds are capable of producing severe weather.

• Cumulus

• Nimbus

• Cumulonimbus

• Stratus

If the temperature in part of a thundercloud falls below freezing and winds are strong, the raindrops in the storm can develop into which of the following?

• Snow

• Sleet

• Rain

• Hail

At any given moment, there are an estimated ________________________ thunderstorms occurring on Earth.

• 100-200

• 300-500

• 1500-2000

• 2500-3500

How is thunder produced?

• By the expanding of air molecules as an electric current passes through the air

• By the expanding of air molecules at wind gusts pass through the air

• By the collision of two or more air masses

• By the collision or two or more fronts

When do the majority of thunderstorms occur?

• Fall

• Winter

• Early morning hours

• Spring/summer