Weather

Meteorologist –

a person who studies weather

Weather is the study of conditions of the atmosphere are over a short period of time Atmosphere conditions

What is weather?

Elements of weather:

Temperature

Precipitation (rainfall, snowfall)

Wind speed

Humidity

Cloud cover

Understanding surface chart symbols and the systems they show

 Low pressure area

                                    

 High pressure area

 Warm front

 Cold front

 Occluded front

 Stationary front

 Trough

Common weather symbols

Weather Fronts

When two air masses meet they don’t like to mix so they form a border called a front.

Front

What is a warm front?

A warm front is the transition zone where a warm air mass is replacing a cold air mass.

What is a cold front?

A cold front is the transition zone where a cold air mass is replacing a warmer air mass.

Weather:

Under Pressure

•High and Low Pressure Systems

•A blue "H" means a center of high pressure (usually calm, sunny weather).

•A red "L" means low pressure (which can mean storminess). Most fronts extend from low-pressure centers.

                                                                                                                                 

1.Air has weight (yes it is true)

**All the air molecules in the atmosphere put pressure on our bodies.

**The higher you go the less pressure

Pressure: High and Low Pressure

Types of weather maps used everyday by Meteorologists

Front Map

Wind Map

Temperature Map

Precipitation Map

Radar Map

Satellite Map

1.Why is it helpful to use different types of weather maps?

2.Where does weather happen?

Questions

Climate

Climate

climate is the pattern of seasonal weather that happens year after year

Climate Around the World…polar, tropical, temperate, cool, dry

Compare these two types of climate-

make predictions and conclusions about the water cycle in these areas.

• Tennessee • Arizona

Information on hurricanes

A storm goes through a series of stages before being classified as a hurricane.

 

Tropical Disturbance

Thunderstorms with light cyclonic circulation

Tropical Depression

Wind speeds between 20 and 34 knots (23-39 mi/hr)

Tropical Storm

Wind speeds between 35 and 64 knots (40-73 mi/hr)

HurricaneWind speed greater than 64 knots (74 mi/hr)

Hurricane Katrina Photographs

Things to look for:

1. Types of clouds

2. New dangerous conditions forming besides the hurricane

3. Look at the colors, shapes and height of the storm

Resourceshttp://school.discovery.com/lessonplans/programs/weathermaps/

www.usatoday.com

http://ww2010.atmos.uiuc.edu/(Gh)/home.rxml