Weather Tools
Pressure
Pressure and Fronts
Air Masses
More
100
Measures temperature
Thermometer
100
Sunny weather is associated with what type of pressure system?
High
100
Tornadoes and hurricanes are large areas of what kind of pressure
Low
100
Air masses are large bodies of air that have relatively uniform
Temperature and Humidity
100
A ___________ front is when cold air pushes warm up over the cold air creating thunderstorms along the leading edge of the front.
cold
200
Measures wind direction and shows direction on weather maps.
Wind Vane/ Compass Rose
200
Stormy weather is associated with what type of pressure system?
Low
200
Cold Front
200
Air masses that originate over land are called
Continental
200
_________________ pressure is associated with a warm front
low
300
Measures wind speed
Anemometer
300
Air flows counterclockwise in which type of system?
Low
300
Warm front
300
A cold air mass that originated over water would be called
polar maritime
300
___________________ fronts are slower than ___________________ fronts
warm, cold
400
Measures air pressure
Barometer
400
Average air pressure at sea level is
29.92 inches of Mercury
400
Stationary Front
400
Cold air masses approach from the
North, Northwest, West
400
When two air masses collide, but neither is strong enough to push the other out of the way
Stationary front
500
Carries instruments into atmosphere
Weather Balloon
500
These are lines connecting points of equal atmospheric pressure.
Isobars
500
Occluded Front
500
The boundary between two air masses
front
500
When two cold air masses converge on a warm front
occluded front