An large body of air that has similar properties to the part of Earth's surface it was formed over.
What is and air mass?
100
Conditions of a thunderstorm.
What are lightening, heavy rain, thunder and sometimes hail?
100
A meteorologist.
What is a person who predicts the weather?
200
The steps of forming a cloud.
What is warm air is forced upward, expands then cools. Next, water vapor molecules attach themselves to small particles of dust or salt and form water droplets. Billions of these suspended water droplets form a cloud.
200
The amount of water vapor in the air.
What is humidity?
200
A boundary between 2 fronts with different properties (density, temperature, or amount of moisture)?
What is a front.
200
A violently rotating column of air that is in contact with the ground.
What is a tornado?
200
A map that has recorded data shown as a combination of symbols.
What is a station model?
300
When water droplets fall to the ground from the clouds.
What is precipitation (rain, snow, sleet, or hail)?
300
This weather factor affects air pressure.
What is temperature?
300
The four main types of fronts.
What are stationary, occluded, warm and cold?
300
The most powerful storm which is a large, swirling, low pressure system.
What is a hurricane?
300
An isotherm.
What is a line that connects connects points of equal temperature?
400
The three main types of clouds.
What are cirrus, stratus, and cumulus?
400
The temperature at which air is saturated and condensation occurs.
What is the dew point?
400
The types of air masses in the United States.
What are cool/moist, cold/dry, warm/moist, and hot/dry.
400
When the air is heated to an extreme temperature, expands, then contracts quickly forming sound waves.
What is thunder?
400
The two sources of the National Weather Service's information.
What are data from the upper atmosphere and Earth's surface?
500
This determines what type of precipitation will occur.
What is air temperature?
500
The amount of water vapor in the air compared to the amount of water vapor needed for saturation at a specific temperature.
What is relative humidity?
500
These occur at fronts.
What are precipitation, clouds, and storms.
500
The conditions of a blizzard.
What are low temperatures, visibility less than 400 m, 56km/h winds, falling or blowing snow, and it lasts for at least 3 hours?
500
The symbols on a weather map.
What are front symbols and high/low pressure symbols?