20.2-20.3

a front

a hurricane eyewall

a storm surge

Temperature and moisture

speed of their movement

surface over which they form

direction in which they move

cold air moves up over warmer air

a warm air mass meets another air mass of the same temperature

warm air glides up over colder air

the temperature in a warm air mass increases

True

False

Air high up in the Atmosphere

Air low in the Atmosphere

Polar continental air masses

true

false

tornado

lightning

warm air

cold front

Tornado

Hurricane

thunderstorm

50 km per hour

119 km per hour

200 km per hour

250 km per hour

Tropical cyclone

middle-latitude aintcyclone

tropical anticyclone

has the storm's strongest winds

is at the storm's center

has no precipitation

is warm because of descending air