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27 Cards in this Set

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  • Back
the temperature at which air is saturated and condensation forms
dew point
water vapor that falls and becomes solid when the temperature is below freezing
snow
high, white, feathery clouds that are associated with fair weather
cirrus
water drops that fall when the temperature is above freezing
rain
What can form along fronts?
low pressure systems
superheated air molecules move away from each other quickly, then cool off and move back together creating a sound wave
thunder
a person who studies and forecasts weather
meteorologist
Moisture condenses out of the air and falls to the ground as rain, snow, sleet, or hail.
precipitation
type of cumulonimbus cloud where tornadoes often form
wall cloud
A large body of air that has the same properties as Earth's surface over which it develops
air mass
factors that form weather
air, water, and sun
a violent, whirling wind that moves in a narrow path over land
tornado
thick, puffy clouds
cumulus
warmer air can hold (more or less) water vapor than air at lower temperature
more
type of front usually associated with violent storms
cold fronts
amount of water vapor that iar is holding compared to the amount it can hold at a specific temperature
relative humidity
place where hurricanes usually form
over tropical oceans
low, layered gray clouds that produce drizzle
stratus
snow that melts in the air then refreezes near the ground
sleet
place where cold and warm air masses meet
front
water that hardens around a nucleus of ice as it is lifted into the clouds, then starts falling to Earth, then lifted back into the clouds by updrafts numerous times
hail
line that connects points of equal temperature
isotherm
air that is full of water vapor
saturated
highest clouds found in the mesosphere and made of ice crystals
cirrus
the build up of positive and negative charges in the clouds
lightning
Why does high air pressure usually mean good weather?
the air's sinking motion makes it difficult for air to rise and condense into clouds
water vapor in the air
humidity