Weather Factors
Clouds
Weather Systems
Weather Fronts
Severe Weather
100
The state of the atmosphere at a specific time and place
What is weather?
100
Puffy, white clouds, with flat bases that sometimes tower to great heights, and can be associated with fair weather or thunderstorms
What are Cumulus clouds?
100
A large body of air that has properties similar to the part of Earth's surface over which it develops
What is an air mass?
100
A boundary between two air masses of different density, moisture, or temperature
What is a front?
100
This is an area of your home you should take shelter during a bad thunderstorm or tornado
Where is your basement?
200
This affects our daily activities--when it is high the molecules in the air move rapidly, and when it is low the molecules in the air move slowly.
What is air temperature?
200
Smooth, even sheets in the sky that usually form at low altitudes (heights) and may be associated with fair weather or rain/snow
(Hint: when these clouds are close to the ground it is perceived as fog)
What are Stratus clouds?
200
A large body of circulating air with high pressure at its center and lower pressure outside the system
What is a high-pressure system?
200
When a warm air mass moves toward a cold air mass
What is a warm front?
200
This type of weather occurs in warm, moist air masses and along fronts
What is a thunderstorm?
300
The amount of water vapor present in the air.
What is humidity?
300
Thin, white, and feathery clouds that are made of ice crystals, and are associated with fair weather, but can indicate approaching storms
What are Cirrus clouds?
300
A large body of circulating air with low pressure at its center and high pressure outside the system
What is a low-pressure system?
300
When a cold air mass moves toward a warm air mass
What is a cold front?
300
This type of weather can be defined as a violently rotating column of air in contact with the ground
What is a tornado?
400
When air moves from an area of high pressure to an area of low pressure.
What is wind?
400
Clouds that have a high water content (which allows little to no sunlight to pass through them) that can be associated with rain or snow
What are Nimbus clouds?
400
What type of pressure system does this figure represent?
What is a low-pressure system?
400
When a boundary between air masses stops moving
What is a stationary front?
400
A storm that has extremely low temperatures, low visibility, and winds of 35 mph, for more than three hours.
What is a blizzard?
500
The measure of the amount of water vapor present in the air compared to the amount needed for saturation at a specific temperature
What is relative humidity?
500
Dark, puffy clouds, high in the troposphere, indicating a storm.
What are CirroCumuloNimbus Clouds?
500
What type of pressure system does this figure represent?
What is a high-pressure system?
500
When a cold air mass moves toward a cool air mass with warm air between the two, trapping it upward
What is an occluded front?
500
A large, swirling, low-pressure system that forms over the warm Atlantic Ocean that causes flooding and severe damage to homes, other buildings, and animals/people.
What is a hurricane?