Instruments
Measures temperature
What is a thermometer?
What is air pressure?
Happens when a cold air mass replaces a warm air mass
What is a cold front?
The way the map symbols for fronts point indicates what?
The direction the front is moving
This pressure forces air downward toward the Earth's surface. It is an indicator of clear weather.
What is a high pressure?
Measures air pressure
What is a barometer?
Exerts more force on a barometer
What is high pressure?
Happens when a warm air mass is replacing a cold air mass
What is a warm front?
These characteristics are basically the same in air masses
What are humidity and temperature?
Cloudy, stormy skies, strong winds spiraling counter clockwise, warm moist air is caused by what?
What is a low pressure system?
This symbol model contains information such as air pressure, temperature, dew point, cloud cover, wind direction, etc
What is a weather station model?
What is low pressure?
What is a stationary front?
An air mass that forms over water will bring what with it?
Moisture
Sunny, clear skies, calm winds that spiral clockwise, and cool dry air accompany this
What is a high pressure system?
Measures wind directions and shows direction on weather maps
What is a wind vane or compass rose?
Air pressure dropping indicates what?
Bad weather approaching
Happens when a cold air mass meet at a warm air mass and push it up
What is an cold front?
What is a maritime air mass?
Global winds are caused by what?
Uneven heating of Earth's surfaces
Measures wind speed
What is an anemometer?
Line connecting points of equal air pressure on a weather map
What is an isobar?
Which air mass always rises above the other?
Warm air always rises
Air mass that originates over land
What is a continental air mass?
As you move closer to the equator temperatures do what?
Increase