Air Masses
This is a large volume of air with the same temperature and humidity at a given altitude.
What is an air mass?
This is the boundary where two air masses meet.
What is a weather front?
On a weather map, high pressure is shown with this letter.
What is H?
Forecasts use percentages for precipitation because....
Weather patterns are complex and can't be predicted with certainty.
This instrument measures air pressure.
What is a barometer?
This warm, moist type of air mass forms over oceans at low latitudes.
What is maritime tropical (mT)?
This type of front occurs when a cold air mass replaces a warm air mass.
What is a cold front?
These lines connect places of equal air pressure on a weather map.
What are isobars?
Warm air masses usually form
What is low latitudes near the equator?
This instrument measures wind speed.
What is an anemometer?
This cold, moist air mass type forms over oceans at high latitudes.
What is maritime polar (mP)?
This type of front brings colder air and can produce stormy weather
This type of system has rising air and winds blowing toward the center.
What is a low pressure system?
Cold air masses usually form here
What is high latitudes near the poles (Polar)
This instrument measures precipitation.
What is a rain gauge?
This warm, dry air mass forms over land at low latitudes.
What is continental tropical (cT)?
A boundary between a cold and warm air mass that is not moving
What is a stationary front?
This type of system has sinking air and winds blowing away from the center.
What is a high pressure system?
List four devices used to gather data for weather forecasting.
Weather stations, weather balloons, radar, satellites
This instrument measures humidity.
What is a hygrometer?
This cold, dry air mass forms over land at high latitudes and often affects the Midwest in winter.
What is continental polar (cP)?
Two cold air masses pushing a warm air mass above them
What is an occluded front?
Wind is mainly caused by air moving between these two types of pressure areas.
What are high pressure and low pressure areas?
List five elements of weather included in detailed weather forecasts.
Temperature, precipitation, humidity, wind speed, rising or falling pressure
This tool sends radio waves that bounce off precipitation to detect intensity and direction.
What is radar?