Weather

Meteorologist – a person who studies weather

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

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

Front When two air masses meet they don’t like to mix so they form a border called a 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 L H

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.                                                                                                                                  

Pressure: High and Low Pressure 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

Types of weather maps used everyday by Meteorologists

Front Map

Wind Map

Temperature Map

Precipitation Map

Radar Map

Satellite Map

Questions Why is it helpful to use different types of weather maps? Where does weather happen?

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) Hurricane Wind speed greater than 64 knots (74 mi/hr)

Hurricane Katrina Photographs Things to look for: Types of clouds New dangerous conditions forming besides the hurricane 3. Look at the colors, shapes and height of the storm

Resources http://school.discovery.com/lessonplans/programs/weathermaps/ www.usatoday.com http://ww2010.atmos.uiuc.edu/(Gh)/home.rxml