Weather Flashcards
(26 cards)
the amount of water vapor in the air
Humidity
puffy, white cloud that tends to have flat bottoms
Cumulus Cloud
clouds that form in layers
Stratus Cloud
thin, feathery, white clouds found at high altitudes
Cirrus Cloud
thunderstorms come from this cloud
Cumulonimbus Cloud
the change of state from a gas a liquid
Condensation
water turning into gas (clouds collect)
Evaporation
any form of water that falls to the Earth’s surface from the clouds
Precipitation
precipitation falling to the earth and running off into lakes and rivers
Runoff
water droplets falling from the sky
Rain
forms when rain falls through a layer of freezing air
Sleet
forms when temps. are so cold that water vapor changes directly to a solid
Snow
balls or lumps of ice that fall from clouds
Hail
forms over water in the polar regions; cold
Polar
forms over water in the tropical region; warm
Tropical
the boundary of an advancing mass of cold air, in particular, the trailing edge of the warm sector of a low-pressure system
Cold Front
the boundary of an advancing mass of warm air, in particular, the leading edge of the warm sector of a low-pressure system
Warm Front
a storm with thunder and lightning
Thunderstorm
the occurrence of a natural electrical discharge of very short duration and high voltage between a cloud and the ground or within a cloud
Lightning
a loud rumbling or crashing heard after a lightning flash due to the expansion of rapidly heated air
Thunder
a mobile, destructive vortex of violently rotating winds having the appearance of a funnel-shaped cloud and advancing beneath a large storm system
Tornado
a storm with a violent wind
Hurricane
an instrument for measuring and indicating temperature
Thermometer
an instrument for measuring the speed of the wind
Anemometer
