weather. meteorologist – a person who studies weather
TRANSCRIPT
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Weather
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Meteorologist –
a person who studies weather
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Weather is the study of conditions of the atmosphere are over a short period of time Atmosphere conditions
What is weather?
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Elements of weather:
Temperature
Precipitation (rainfall, snowfall)
Wind speed
Humidity
Cloud cover
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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
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Weather Fronts
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When two air masses meet they don’t like to mix so they form a border called a front.
Front
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What is a warm front?
A warm front is the transition zone where a warm air mass is replacing a cold air mass.
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What is a cold front?
A cold front is the transition zone where a cold air mass is replacing a warmer air mass.
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Weather:
Under Pressure
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•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.
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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
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Types of weather maps used everyday by Meteorologists
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Front Map
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Wind Map
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Temperature Map
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Precipitation Map
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Radar Map
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Satellite Map
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1.Why is it helpful to use different types of weather maps?
2.Where does weather happen?
Questions
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Climate
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Climate
climate is the pattern of seasonal weather that happens year after year
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Climate Around the World…polar, tropical, temperate, cool, dry
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Compare these two types of climate-
make predictions and conclusions about the water cycle in these areas.
• Tennessee • Arizona
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Information on hurricanes
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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)
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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
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Resourceshttp://school.discovery.com/lessonplans/programs/weathermaps/
www.usatoday.com
http://ww2010.atmos.uiuc.edu/(Gh)/home.rxml