Weather Maps Part 1

Meteorologists use information from weather tools to make weather maps. They help predict or forecast the weather.

The key of a weather map explains what the different symbols mean

• Temperature

• Precipitation

• ​Movement of Air Masses

• ​Fronts

• ​Air Pressure

The Movement of Air Masses

(Study Jams Video: Air Masses and Fronts)

• Large body of air with the same temperature and humidity (amount of water vapor) throughout

• Cold & Dry, Cold & Humid

• Warm & Dry, Warm & Humid

• ​Dry - forms over land

• ​Wet - forms over water

• ​Cold - forms near poles

• ​Warm - forms near equator

Where Two Different Air Masses Meet

• Triangles

• Cold air mass bumps into a warm air mass

• Strong Storms

• Warm Weather: Thunderstorms

• Cold Weather: Snowstorm

• Temperature Drops

• Half Circles

• Warm Air Mass Meets a Colder Air Mass and Slowly Rides Up Over It

• Sheets of Gray Clouds Bring Rain

• Temperature Rises

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• Two Air Masses Meet and Stop Moving

• Clouds & Precipitation

• Triangles & Half Circles

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