A sudden shift in wind direction, drop in temperature, and pressure change often signal the arrival of this.
What is a cold front?
Thin, wispy clouds found high in the sky.
What are cirrus clouds?
A large body of air with similar temperature and humidity.
What is an air mass?
This layer of the atmosphere contains most weather and the majority of air mass movement.
What is the troposphere?
Air pressure decreases with increasing this variable.
What is altitude?
Falling air pressure usually means this type of weather is coming.
What is stormy or rainy weather?
Tall clouds that can produce thunderstorms.
What are cumulonimbus clouds?
This type of air mass is cold and dry.
What is continental polar (cP)?
This layer contains the ozone layer, which absorbs harmful ultraviolet radiation from the Sun.
What is the stratosphere?
This instrument measures atmospheric pressure and is key for forecasting.
What is a barometer?
If you observe cirrus clouds followed by altostratus and then steady rain, this type of front is likely moving in.
What is a warm front?
Flat, layered clouds that cover the sky like a blanket.
What are stratus clouds?
This type of air mass is warm and humid.
What is maritime tropical (mT)?
This layer experiences the coldest temperatures in Earth’s atmosphere.
What is the mesosphere?
This type of pressure system is associated with sinking air and diverging surface winds, causing fair weather.
What is a high-pressure system?
Long periods of clouds and light precipitation in the same area suggest this front is stalled overhead.
What is a stationary front?
Clouds form when this process turns water vapor into liquid droplets.
What is condensation?
Air masses are named using a two-part system that describes moisture source and this second factor.
What is temperature?
The location of the ionosphere.
What is the thermosphere?
The direction low-pressure systems move in the Northern Hemisphere.
What is counterclockwise?
A weather system showing both widespread steady rain and sudden bursts of heavy precipitation likely involves this complex front type.
What is an occluded front?
If you observe rapidly growing cumulus clouds on a hot afternoon, this suggests what is likely to occur later in the day?
What is a thunderstorm?
A region experiences cool temperatures, cloudy skies, and light precipitation coming from the ocean. Identify the air mass.
What is maritime polar (mP)?
As altitude increases in the troposphere, temperature generally changes in this way.
What is it decreases?
The process that deflects moving air due to Earth's rotation.
What is the corioils effect?