The sound that follows a flash of lightning and is caused by sudden expansion of the air in the path of the electrical discharge.
thunder
______ is a naturally occurring electrostatic discharge during which two electrically charged regions, both in the atmosphere or with one on the ground.
lightning
An overflowing of a large amount of water beyond its normal confines, especially over what is normally dry land.
a flood
A _____ is a period of time when an area or region experiences below-normal precipitation.
a drought
A _____ is an unusual weather phenomenon in which balls of ice, called hail, fall from the sky.
hailstorm
A _____ is a severe snowstorm with high winds and low visibility.
blizzard
A very intense low-pressure wind system, forming over tropical oceans and with winds of hurricane force.
a tropical storm
The rate at which someone or something is able to move or operate.
speed
A _______ is a type of storm called a tropical cyclone, which forms over tropical or subtropical waters. ______ is a large, swirling storm.
a hurricane
A destructive vortex of violently rotating winds having the appearance of a funnel-shaped cloud and advancing beneath a large storm system.
a tornado
A strong wind carrying clouds of sand with it, especially in a desert.
a sandstorm
A prolonged period of abnormally hot weather. When a heatwave occurs many people become increasingly bad-tempered.
a heatwave
