Warm and Cold Fronts
What direction does a warm front move in the air?
Up in a steep direction
What is a stationary front?
When the boundary between two air masses stalls
What is a high pressure system?
A large body of circulating air with high pressure at its center and low pressure outside of the system
What is an air mass?
A large body of air that has similar characteristics temperature, humidity, and pressure
What is the first stage of a thunderstorms?
The cumulus stage
How does a cold front form?
When a colder air mass moves toward a warmer air mass
What weather does a stationary front bring?
It brings cloudy skies and light rain
In a high pressure system does dense air sink or rise?
It sinks
How does an air mass form?
When a large high pressure system lingers over an area for several days
What is the definition of a tornado?
A violent, whirling, column of air in contact with the ground
What forms along cold fronts?
Showers and thunderstorms
How does a occluded front form?
When a fast moving cold front catches up with a slow moving warm front
Does a high pressure system bring good weather or bad weather?
It bring good weather (Clear skies and fair weather)
How many types of air masses are there?
There are 5 different types (Artic, Continental Polar, Maritime, Continental Tropical, and Maritime Tropical)
What is the definition of a blizzard?
A violent winter storm characterized by freezing temperatures, strong winds, and blowing snow.
What would happen if a warm front came to an area?
The air will get warmer and more humid
What weather do occluded fronts bring?
It brings a lot of precipitation
What is a low pressure system?
A large body of circulating air with low pressure at its center and high pressure outside the system.
When a air mass forms over in the equatorial regions, what is it called?
Tropical
What does the U.S National Weather Service mean when they give a warning?
They mean that severe weather is already happening
How does a warm front form?
It forms when less dense, warmer air, moves toward colder, denser air
What is another name for an occluded front?
A blocked front
What weather does a low pressure system bring?
It brings clouds and precipitation
What air is contained an Artic air mass?
Bitterly cold and dry air
What is the most destructive storm on Earth?
A hurricane