A huge body of air that has similar temperature, humidity, and air pressure at any given height. (VOCAB WORD)
What is an air mass.
100
The boundary where the air masses meet.
What is a front.
100
A violent disturbance in the atmosphere.
What is a storm.
100
Scientists who study the causes of weather and try to predict it.
Who are meteorologists
200
Warm, humid air masses that form over tropical oceans. They move into the southeastern U.S, and influence weather in the central and eastern United States.
What is a maritime tropical air mass.
200
The names of the four types of fronts.
What are: cold fronts, warm fronts, stationary fronts, and occluded fronts.
200
A small storm accompanied by heavy precipitation and frequent thunder and lightning.
What is a thunderstorm.
200
These devices carry instruments high into the troposphere and lower stratosphere. They measure temperature, air pressure and humidity.
What is a weather balloon.
300
Cool, humid air masses form over the icy North Pacific and Atlantic Oceans. These air masses affect the West Coast more than the East Coast. They can bring fog, rain and cool temperatures.
What is a maritime polar air mass.
300
This type of front moves quickly and can cause abrupt weather changes, including thunderstorms.
What is a cold front.
300
A rapidly whirling, funnel-shaped cloud that reaches down from a storm cloud to touch Earth's surface.
What is a tornado.
300
These devices go into space and make images of Earth's surface. They look at clouds, storms, and snow cover.
What is a weather satellite.
400
Hot, dry air masses that form mostly in the summer over the Southwest and northern Mexico. These air masses bring hot, dry weather to the southern Great Plains
What is a continental tropical air mass.
400
After this type of front passes through an area, the weather is likely to be warm and humid.
What is a warm front.
400
A tropical cyclone that had winds of 119 kilometers per hour or higher.
What is a hurricane.
400
Data is gathered from surface locations for temperature, air pressure, relative humidity, rain fall, wind speed and direction. The National Weather Service has a huge network of over 1,700 sites.
What is an automated weather station.
500
These dry, cold air masses form over Canada and Alaska. They can bring bitterly cold weather with low humidity, and mostly affect central and eastern United States.
What is a continental polar air mass.
500
In this type of front a warm air mass is caught between two cooler air masses. As the warm air cools its water vapor condenses, the weather may turn cloudy and rain or snow may fall.
What is an occluded front.
500
A storm that occurs when the weather gets cooler between November and March. This storm brings snow, ice, hail, sleet, freezing rain and/or extremely cold temperatures.
What is a winter storm.
500
This kind of data is used to make forecasts at 12, 24 and 36 hours.