Show:
Basic Weather
Pressure
Fronts
Symbols
Miscellaneous
100
What is weather?
the state of the atmosphere at a given time and place
100
Explain what causes differences in air pressure.
The uneven heating of the Earth by the cun
100

What are the four different kinds of weather boundaries or fronts?

cold, warm, stationary, occluded

100
On a weather map, these are two types of pressure systems and their symbols.
Low Pressure - Red L High Pressure - Blue H
100

This is the by-product of the earth's rotation which adds acceleration and direction to any moving object including wind.

the Coriolis Effect

200
Where does weather occur in the atmosphere?
the troposphere (layer closest to Earth's surface)
200
Pressure always moves in this direction. What does this movement cause?
From high pressure to low pressure. This movement causes wind.
200
A boundary between 2 air masses, one cold and one warm, where the cold air moves the warm.
A Cold Front
200
Draw the symbol for a cold front. What color will it appear on a weather map?
line with red half circles attached to it
200
Lines representing equal barometric pressure
Isobars
300
Explain what drives weather.
The sun and convection currents are responsible for weather
300
This type of pressure system is indicated by a clear, sunny day with cooler temperatures.
high pressure system
300

A boundary between 2 air masses, one cold and one warm, where warm air rises up and over the cold

A Warm Front

300
Draw the symbol for a cold front. What color will it appear on a weather map?
line with blue triangles coming off of it
300
How does air or water move within a convection current?
warm air/water rises and cold air/water sinks
400
This is a person who studies weather and makes predictions about weather.
A Meteorologist
400
Low pressure systems bring what type of weather and air masses?
bad weather and warmer air masses
400

This is what happens when a warm front and a cold front meet in the atmosphere and neither one is strong enough to move the other.

A Stationary Front

400
Draw a stationary front and describe how it will appear colorwise on a weather map.
a line with red half circles on one side and blue triangles on the other side
400
List the factors necessary to create a hurricane.
disturbance/thunderstorms from Africa, warm ocean water, low pressure system, wind, moisture in the air
500

What do we call a fast flowing, narrow air current? It guides storms, steers temperature patterns and influences storm severity

a Jet Stream

500
Explain how high and low pressure systems rotate in the Northern Hemisphere.
High Pressure - Clockwise Low Pressure - Counterclockwise
500

A warm air mass surrounded by two cooler air masses, making weather cloudy, rainy, or snowy.

An Occluded Front

500
Draw the symbol for an occluded front. Explain why it has the color it has on a weather map.
line with purple triangles and half circles on the same side. It is purple because the warm and cold air kind of mix (blue and red make purple).
500
How do winds move within High and Low pressure systems in the Southern Hemisphere due to the Coriolis Effect?
High Pressure - Counterclockwise Low Pressure - Clockwise